CN119878753A - Engine mount for a motor vehicle - Google Patents
Engine mount for a motor vehicle Download PDFInfo
- Publication number
- CN119878753A CN119878753A CN202510150368.4A CN202510150368A CN119878753A CN 119878753 A CN119878753 A CN 119878753A CN 202510150368 A CN202510150368 A CN 202510150368A CN 119878753 A CN119878753 A CN 119878753A
- Authority
- CN
- China
- Prior art keywords
- flow channel
- flow passage
- medium
- valve core
- magnetorheological medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
- F16F13/105—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of partitions between two working chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1283—Adjustable supports, e.g. the mounting or the characteristics being adjustable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/30—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids
- F16F13/305—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids magnetorheological
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The invention provides an engine suspension for an automobile, which comprises a base, a containing part, a valve body and a valve body, wherein the base is arranged on a body of the automobile, the containing part partially extends out of the base and is connected with the engine of the automobile and is suitable for containing magnetorheological media, the edge of the valve body is combined with the inner wall of the containing part to divide the containing part into two medium cavities communicated with each other in the height direction, a first flow passage, a second flow passage and a third flow passage are formed in the valve body, the magnetorheological media flow to the valve body through the second flow passage or the third flow passage when the amplitude of the containing part is smaller than a preset amplitude, the pressure of the magnetorheological media in the two medium cavities is greater than or equal to the preset amplitude, the magnetorheological media overflows the second flow passage or the third flow passage when the amplitude of the containing part is larger than or equal to the preset amplitude, the magnetorheological media flows between the two medium cavities through the first flow passage, and the damping force of the magnetorheological media flowing is adjusted by changing the magnetic field intensity flowing through the first flow passage.
Description
Technical Field
At least one embodiment of the invention relates to the technical field of automobile engine damping devices, in particular to an engine suspension for an automobile.
Background
In order to improve riding comfort during running of an automobile, in the prior art, an engine suspension is generally installed between an engine and a vehicle body, so that excitation transmitted to the vehicle body during operation of the engine and excitation transmitted to the engine through road surface unevenness after vehicle body filtering are attenuated.
Existing engine mounts include rubber mounts and hydraulic block mounts. Among them, the rubber suspension has stable stiffness characteristics, but its own damping characteristics are low, and vibration cannot be rapidly damped. The rigidity characteristic of the hydraulic resistance suspension is stable, and the hydraulic resistance suspension has larger damping at specific frequency to attenuate vibration, compared with the rubber suspension, the hydraulic resistance suspension has improved damping characteristic to a certain extent, but once the flow channel is designed, the damping frequency cannot be adjusted in the use process, and dynamic stiffness hardening phenomenon exists when the amplitude is smaller, so that vibration of various amplitudes cannot be attenuated, and better riding comfort cannot be provided.
Disclosure of Invention
In view of this, the present invention provides an engine mount for an automobile to increase the degree of attenuation of the excitation transmitted to the frame during engine operation and the excitation transmitted to the engine by the vehicle body filtered road surface irregularities.
According to an embodiment of the invention, an engine mount for an automobile is provided, which comprises a base mounted on a body of the automobile, a containing part partially extending out of the base and connected with the engine of the automobile and suitable for containing magnetorheological media, and a valve body, wherein the edge of the valve body is combined with the inner wall of the containing part to divide the containing part into two medium cavities communicated with each other in the height direction, a first flow passage, a second flow passage and a third flow passage are formed in the valve body, wherein when the amplitude of the containing part is smaller than a preset amplitude, the magnetorheological media flows to the valve body through the second flow passage or the third flow passage by one of the two medium cavities with larger pressure so as to balance the pressure of the magnetorheological media in the two medium cavities, and when the amplitude of the containing part is larger than or equal to the preset amplitude, the magnetorheological media overflows from the second flow passage or the third flow passage, flows between the two medium cavities through the first flow passage, and the flow strength of the magnetorheological media is changed through the first flow passage, so that the shear strength of the magnetorheological media is adjusted.
According to the embodiment of the invention, the valve body comprises a containing shell, a magnetic piece and a valve core, wherein a plurality of first flow passage holes are formed in the top wall of the containing shell in sequence along the circumferential direction, a plurality of second flow passage holes are formed between the first flow passage holes and the center of the top wall, an opening allowing magnetorheological medium to flow through is formed in the bottom wall of the containing shell, the opening and the first flow passage holes form a first flow passage, the magnetic piece is configured into a circular ring shape and is installed inside the containing shell and is suitable for adjusting the intensity of a magnetic field flowing through the first flow passage, the valve core is installed inside the magnetic piece, a cavity for containing the magnetorheological medium is formed on the extruded side of the valve core under the condition that the magnetorheological medium is extruded by the valve core, and the second flow passage holes and the opening form the second flow passage and the third flow passage with the valve core respectively.
According to the embodiment of the invention, a plurality of first runner holes which face each other and are sequentially arranged along a first circumference are formed on the top wall and the bottom wall respectively, a plurality of second runner holes and a plurality of third runner holes which are sequentially arranged along a second circumference are formed on the top wall and the bottom wall respectively, the second circumference is positioned between the center of the top wall or the bottom wall and the first circumference, the first runner holes which face each other on the top wall and the bottom wall and gaps between the magnetic piece and the valve core form the first runner, and the second runner holes and the third runner holes form the second runner and the third runner with the valve core respectively.
According to an embodiment of the invention, the valve core comprises a valve chip, a first diaphragm and two cushion blocks, wherein the valve chip is configured into a general circular shape, the first diaphragm is installed inside the valve chip, the two cushion blocks are respectively installed on two sides of the valve chip in the height direction and are suitable for limiting the movement of the first diaphragm in the radial direction and limiting the movement of the valve chip in the height direction, and the first diaphragm moves towards the top wall or the bottom wall under the condition that magnetorheological medium presses the first diaphragm, so that a cavity for accommodating the magnetorheological medium is formed by the first diaphragm and the cushion blocks.
According to the embodiment of the invention, a plurality of first runner holes and a plurality of second runner holes are sequentially formed on the top wall along a first circumference and a second circumference respectively, the second circumference is positioned between the center of the top wall and the first circumference, a fourth runner hole is formed on the bottom wall, wherein the first runner hole, a gap between the magnetic piece and the valve core and the fourth runner hole form the first runner, and the second runner hole and the fourth runner hole form the second runner and the third runner with the valve core respectively.
According to the embodiment of the invention, the valve core comprises a valve core seat and a second diaphragm, wherein the valve core seat is configured as a hollow cylinder with an upper opening, a plurality of fifth runner holes communicated with the fourth runner holes are formed at the bottom of the valve core seat, the second diaphragm is installed inside the valve core seat, and the second diaphragm moves towards the top wall or the bottom wall under the condition that magnetorheological medium presses the second diaphragm so as to form a cavity containing the magnetorheological medium with the valve core seat.
According to an embodiment of the present invention, each of the first runner holes is configured in a substantially sector-shape, and the second runner holes and the third runner holes are configured in a substantially circular shape or a rectangular shape.
According to the embodiment of the invention, the accommodating part comprises a rubber main spring, a bracket, a support and a flexible packaging part, wherein the upper side of the rubber main spring is provided with an opening, the lower side of the rubber main spring is arranged on the base, the bracket surrounds the rubber main spring, one end of the bracket horizontally extends out of the rubber main spring and is suitable for being connected with the engine to provide supporting force for the engine in the height direction, and the flexible packaging part is arranged on the upper side of the rubber main spring, and forms a cavity for accommodating magnetorheological media together.
According to the embodiment of the invention, the flexible sealing element is provided with the liquid injection port capable of being opened and closed, and the liquid injection port is suitable for injecting magnetorheological medium into the cavity.
According to an embodiment of the invention, the base comprises a shell and a supporting frame, wherein the shell is mounted on a body of the automobile, and the supporting frame is mounted inside the shell and connected with the accommodating part.
According to the engine mount for an automobile of the above-described embodiment of the present invention, the edge of the valve body is joined with the inner wall of the accommodation portion to divide the accommodation portion into two medium chambers communicating with each other in the height direction, and the valve body is formed with the first flow passage, the second flow passage, and the third flow passage inside. When the amplitude of the accommodating part is larger than or equal to the preset amplitude, the magnetorheological medium overflows from the second flow passage or the third flow passage, flows between the two medium cavities through the first flow passage, and the shear yield strength of the magnetorheological medium is adjusted by changing the magnetic field strength flowing through the first flow passage so as to adjust the damping force of the flow of the magnetorheological medium. According to the engine suspension for the automobile, the damping of the engine suspension can be adjusted according to the working condition of the engine and the road condition of the automobile, so that the degree of excitation transmitted to an automobile body when the engine is attenuated in working and the degree of excitation transmitted to the engine by the road surface unevenness after the automobile body is filtered can be increased.
Drawings
FIG. 1 is a schematic perspective view of an engine mount for an automobile in accordance with an embodiment of the present invention;
FIG. 2 is an internal cross-sectional view of a first embodiment of an engine mount for an automobile in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the working principle of a first embodiment of an engine mount for an automobile according to an embodiment of the present invention;
FIG. 4 is an enlarged partial view of portion A of FIG. 3;
FIG. 5 is an exploded view of a valve body of a first embodiment of an engine mount for an automobile in accordance with an embodiment of the present invention;
FIG. 6 is an internal cross-sectional view of a second embodiment of an engine mount for an automobile in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of the working principle of a second embodiment of an engine mount for an automobile according to an embodiment of the present invention;
FIG. 8 is an enlarged partial view of the portion B of FIG. 7, and
Fig. 9 is an exploded view of a valve body of a second embodiment of an engine mount for an automobile according to an embodiment of the present invention.
In the figure:
1-base, 11-shell and 12-supporting frame;
2-an accommodating part;
21-a rubber main spring;
22-a bracket;
23-flexible sealing element, 231-liquid injection port, 232-sealing plug;
24-cavity;
3-a valve body;
31-a first flow channel;
32-a second flow channel;
33-a third flow channel;
34-containment vessel, 341-top wall, 342-first flow aperture, 343-second flow aperture, 344-bottom wall, 345-first circumference, 346-second circumference, 347-fourth flow aperture, 348-third flow aperture, 349-opening;
35-magnetic member;
36-valve core, 361-valve chip, 362-first diaphragm, 363-cushion block, 364-valve core seat, 365-fifth runner hole, 366-second diaphragm, 367-bolt;
4-medium cavity;
5-magnetorheological medium.
Detailed Description
The present invention will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
According to an aspect of the present invention, there is provided an engine mount for an automobile, including a base mounted on a body of the automobile, a receiving portion partially extending out of the base and connected to the engine of the automobile and adapted to receive a magnetorheological medium, and a valve body having an edge joined to an inner wall of the receiving portion to divide the receiving portion into two medium chambers communicating with each other in a height direction, a first flow passage, a second flow passage, and a third flow passage being formed inside the valve body, wherein the magnetorheological medium flows from a larger one of the two medium chambers to the valve body through the second flow passage or the third flow passage to balance a pressure of the magnetorheological medium in the two medium chambers in a case that an amplitude of the receiving portion is equal to or greater than a predetermined amplitude, flows between the two medium chambers through the first flow passage, and adjusts a shear yield strength of the magnetorheological medium by changing a magnetic field strength flowing through the first flow passage to adjust a damping force of the magnetorheological medium.
Fig. 1 is a perspective view of an engine mount for an automobile according to an embodiment of the present invention, fig. 2 is an internal cross-sectional view of a first embodiment of an engine mount for an automobile according to an embodiment of the present invention, fig. 3 is a schematic view of an operation principle of the first embodiment of an engine mount for an automobile according to an embodiment of the present invention, and fig. 4 is a partially enlarged view of a portion a in fig. 3.
Referring to fig. 1 to 4, according to an exemplary embodiment of the present invention, an engine mount for an automobile is provided, which includes a base 1, a receiving portion 2, and a valve body 3. The base 1 is mounted on the body of an automobile. The housing 2 partly protrudes from the base 1 and is connected to the engine of the motor vehicle and is adapted to receive a magneto-rheological medium 5. The edge of the valve body 3 is joined to the inner wall of the housing portion 2 to divide the housing portion 2 into two medium chambers 4 communicating with each other in the height direction, and a first flow passage 31, a second flow passage 32, and a third flow passage 33 are formed inside the valve body 3. Wherein, when the amplitude of the accommodating portion 2 is smaller than the predetermined amplitude, the magnetorheological medium 5 flows to the valve body 3 from the larger one of the two medium chambers 4 through the second flow passage 32 or the third flow passage 33 to balance the pressure of the magnetorheological medium 5 in the two medium chambers 4. When the amplitude of the housing portion 2 is equal to or larger than a predetermined amplitude, the magnetorheological medium 5 overflows from the second flow passage 32 or the third flow passage 33, flows between the two medium chambers 4 through the first flow passage 31, and adjusts the shear yield strength of the magnetorheological medium 5 by changing the magnetic field strength flowing through the first flow passage 31 to adjust the damping force of the flow of the magnetorheological medium 5.
In the present embodiment, the edge of the valve body 3 is joined to the inner wall of the housing portion 2 to divide the housing portion 2 into two medium chambers 4 communicating with each other in the height direction, and the first flow passage 31, the second flow passage 32, and the third flow passage 33 are formed inside the valve body 3. When the amplitude of the accommodating portion 2 is smaller than a predetermined amplitude, the magnetorheological medium 5 flows to the valve body 3 through the second flow passage 32 or the third flow passage 33 from the larger one of the two medium chambers 4 to balance the pressure of the magnetorheological medium 5 in the two medium chambers 4, and when the amplitude of the accommodating portion 2 is larger than or equal to the predetermined amplitude, the magnetorheological medium 5 overflows from the second flow passage 32 or the third flow passage 33, flows between the two medium chambers 4 through the first flow passage 31, and the shear yield strength of the magnetorheological medium 5 is adjusted by changing the magnetic field strength flowing through the first flow passage 31 to adjust the damping force of the flow of the magnetorheological medium 5. According to the engine suspension for the automobile, the damping of the engine suspension can be adjusted according to the working condition of the engine and the road condition of the automobile, so that the degree of excitation transmitted to an automobile body when the engine is attenuated in working and the degree of excitation transmitted to the engine by the road surface unevenness after the automobile body is filtered can be increased.
In this embodiment, the predetermined amplitude is ±0.1mm. The magnetorheological medium 5 may be formed by mixing an iron powder, an active agent, and a silicone oil, for example, the mass fraction of the iron powder may be 60% of the total mass of the magnetorheological medium 5.
Fig. 5 is an exploded view of a valve body of a first embodiment of an engine mount for an automobile according to an embodiment of the present invention.
In some exemplary embodiments, referring to fig. 3-5, the valve body 3 includes a housing case 34, a magnetic member 35, and a valve core 36. A plurality of first flow passage holes 342 are sequentially formed in the circumferential direction on the top wall 341 of the housing case 34, a plurality of second flow passage holes 343 are formed between the plurality of first flow passage holes 342 and the center of the top wall 341, an opening 349 allowing the magnetorheological medium 5 to flow therethrough is formed in the bottom wall 344 of the housing case 34, and the opening 349 and the first flow passage holes 342 form the first flow passage 31. The magnetic member 35 is configured in a substantially circular shape, is mounted inside the housing case 34, and is adapted to adjust the intensity of the magnetic field flowing through the first flow passage 31. The valve core 36 is mounted inside the magnetic member 35, and is configured such that when the magnetorheological medium 5 presses the valve core 36, the pressed side forms a cavity accommodating the magnetorheological medium 5, and the second flow passage holes 343 and the openings 349 form the second flow passage 32 and the third flow passage 33 with the valve core 36, respectively.
In the present embodiment, in the case where the amplitude of the housing portion 2 is smaller than the predetermined amplitude, the magnetorheological medium 5 in the larger one of the two medium chambers 4 presses the spool 36, and the magnetorheological medium 5 flows into the cavity formed on the pressed side of the spool 36, so that the pressure of the magnetorheological medium 5 inside the two medium chambers 4 reaches dynamic balance, for example, the magnetorheological medium 5 flows between the second flow passage hole 343 and the spool 36, or the magnetorheological medium 5 flows between the opening 349 and the spool 36. When the amplitude of the housing 2 is equal to or greater than the predetermined amplitude, in order to balance the pressure of the magnetorheological medium 5 in the two medium chambers 4, the flow rate of the magnetorheological medium 5 to be flowed is large, so that the magnetorheological medium 5 in the one of the two medium chambers 4 having the larger pressure presses the valve element 36, and after flowing into the cavity formed by the pressed side of the valve element 36, the magnetorheological medium 5 overflows and flows from the first flow passage 31 into the other medium chamber 4, for example, the magnetorheological medium 5 flows from the pressed side medium chamber 4 to the other medium chamber 4 through the opening 349 and the first flow passage hole 342. At this time, by applying an electric current to the magnetic member 35, the magnetic field strength flowing through the first flow channel 31 is increased, so that the shear yield strength of the magnetorheological medium 5 is increased, and thus the damping force of the flow of the magnetorheological medium 5 is increased, so that the rigidity and the damping of the engine mount are increased.
Further, when the amplitude of the housing portion 2 is equal to or greater than a predetermined amplitude, the magnitude of the current applied to the magnetic member 35 may be adjusted correspondingly according to the magnitude of the amplitude value, so as to match the rigidity and damping of the corresponding engine mount according to the amplitude value.
The diameter of the valve core 36 is in the range of 36 to 40mm, preferably 38mm. The stent 22 has an inner diameter in the range of 38-42mm, preferably 40mm. Wherein the diameter of the valve core 36 should be adapted to the inner diameter of the holder 22.
In some exemplary embodiments, referring to fig. 3-5, a plurality of first flow passage holes 342 are formed in the top wall 341 and the bottom wall 344, respectively, facing each other, and each disposed in sequence along the first circumference 345. A plurality of second flow passage holes 343 and a plurality of third flow passage holes 348 are formed in the top wall 341 and the bottom wall 344, respectively, and are disposed in this order along the second circumference 346. The second circumference 346 is located between the center of the top wall 341 or the bottom wall 344 and the first circumference 345. Wherein, the first flow passage hole 342, in which the top wall 341 and the bottom wall 344 face each other, and the gap between the magnetic member 35 and the valve element 36 form the first flow passage 31. The second and third flow passage holes 343, 348 form the second and third flow passages 32, 33 with the spool 36, respectively.
In the present embodiment, the circumference of the outer edge of the valve core 36 is located between the first circumference 345 and the inner edge of the magnetic member 35, so that the gaps between the top wall 341 and the bottom wall 344 and the gaps between the magnetic member 35 and the valve core 36 form the first flow channel 31 having a substantially rectangular shape, the second flow channel 343 and the valve core 36 form the second flow channel 32, and the third flow channel 348 and the valve core 36 form the third flow channel 33 having a substantially linear shape. At this time, the path of the magnetorheological medium 5 flowing inside the first flow passage 31 is significantly longer than the path of the magnetorheological medium flowing inside the second flow passage 32 or the third flow passage 33. The flow channel having the shorter path is preferentially selected based on the fluid flow, and thus the magnetorheological medium 5 preferentially flows through the second flow channel 32 or the third flow channel 33. In other words, in the case where the amplitude of the housing portion 2 is smaller than the predetermined amplitude, the magnetorheological medium 5 flows into the cavity formed on the side where the spool 36 is pressed through the second flow passage 32 or the third flow passage 33. When the amplitude of the housing 2 is equal to or greater than the predetermined amplitude, the flow rate of the magnetorheological medium 5 to be flowed is large in order to balance the pressures of the magnetorheological medium 5 in the two medium chambers 4, so that the magnetorheological medium 5 in the one of the two medium chambers 4 having the larger pressure presses the valve element 36, and after flowing into the cavity formed on the pressed side of the valve element 36, the magnetorheological medium 5 overflows from the first flow passage 31 and flows into the other medium chamber 4.
Further, the volume compliance of the portion of the valve element 36 pressed by the magnetorheological medium 5 is larger than the volume compliance of the wall surface of the accommodating portion 2, whereby the portion of the valve element 36 pressed by the magnetorheological medium 5 is more easily deformed than the wall surface of the accommodating portion 2. That is, in the case where one of the medium chambers 4 is pressed, the portion of the spool 36 pressed by the magnetorheological medium 5 has a smaller flow resistance to the magnetorheological medium 5, so that the magnetorheological medium 5 preferentially flows into the cavity formed on the pressed side of the spool 36 through the second flow passage 32 or the third flow passage 33.
In the present embodiment, the gap between the magnetic member 35 and the valve element 36 is in the range of 1 to 3mm.
In some exemplary embodiments, referring to fig. 3-5, the valve cartridge 36 includes a valve chip 361, a first diaphragm 362, and two shims 363. The valve chip 361 is configured in a substantially circular shape. The first diaphragm 362 is mounted inside the valve chip 361. Two pads 363 are respectively installed at both sides of the valve chip 361 in the height direction, and adapted to restrict the movement of the first diaphragm 362 in the radial direction and to restrict the movement of the valve chip 361 in the height direction. Wherein, with the magnetorheological medium 5 pressing against the first diaphragm 362, the first diaphragm 362 moves toward the top wall 341 or the bottom wall 344 to form a cavity with the pad 363 to contain the magnetorheological medium 5.
In the present embodiment, the first diaphragm 362 is mounted inside the valve chip 361, and two pads 363 are mounted at both ends of the valve chip 361 in the height direction, such that two pads 363 are mounted at both ends of the first diaphragm 362 protruding from the valve chip 361 in the height direction, so that in the case where the magnetorheological medium 5 presses the first diaphragm 362, the first diaphragm 362 moves toward the top wall 341 or the bottom wall 344, such that the first diaphragm 362 forms a cavity containing the magnetorheological medium 5 with the pads 363 to allow the magnetorheological medium 5 to flow in, thereby equalizing the pressures of the two medium chambers 4.
Further, the first diaphragm 362 has a larger volume compliance than the wall surface of the housing portion 2, and thus the first diaphragm 362 is more easily deformed than the wall surface of the housing portion 2. That is, in the case where one of the medium chambers 4 is pressed, the first diaphragm 362 has a smaller flow resistance to the magnetorheological medium 5, so that the magnetorheological medium 5 preferentially flows into the cavity formed by the pressed side of the first diaphragm 362 and the spacer 363 through the second flow passage 32 or the third flow passage 33.
In addition, the top wall 341, the valve chip 361, the two pads 363, and the bottom wall 344 are connected by bolts 367.
Fig. 6 is an internal sectional view of a second embodiment of an engine mount for an automobile according to an embodiment of the present invention, fig. 7 is a schematic view of the working principle of the second embodiment of the engine mount for an automobile according to an embodiment of the present invention, fig. 8 is a partially enlarged view of a portion B in fig. 7, and fig. 9 is an exploded view of a valve body of the second embodiment of the engine mount for an automobile according to an embodiment of the present invention.
In some exemplary embodiments, referring to fig. 6-9, a plurality of first flow passage holes 342 and a plurality of second flow passage holes 343 are sequentially formed in the top wall 341 along the first circumference 345 and the second circumference 346, respectively. The second circumference 346 is located between the center of the top wall 341 and the first circumference 345, and the bottom wall 344 is formed with fourth flow passage holes 347. Wherein the first flow passage hole 342, the gap between the magnetic member 35 and the valve body 36, and the fourth flow passage hole 347 form the first flow passage 31. The second flow passage hole 343 and the fourth flow passage hole 347 form the second flow passage 32 and the third flow passage 33 with the valve body 36, respectively.
In the present embodiment, the first flow passage 31, the gap between the magnetic member 35 and the valve element 36, and the fourth flow passage 347 form the first flow passage 31, and the second flow passage 343 and the fourth flow passage 347 form the second flow passage 32 and the third flow passage 33 with the valve element 36, respectively. The volume compliance of the portion of the valve element 36 pressed by the magnetorheological medium 5 is larger than the volume compliance of the wall surface of the accommodating portion 2, and thus the portion of the valve element 36 pressed by the magnetorheological medium 5 is more easily deformed than the wall surface of the accommodating portion 2. That is, in the case where one of the medium chambers 4 is pressed, the portion of the spool 36 pressed by the magnetorheological medium 5 has a smaller flow resistance to the magnetorheological medium 5, so that the magnetorheological medium 5 preferentially flows into the cavity formed on the pressed side of the spool 36 through the second flow passage 32 or the third flow passage 33. Therefore, in the case where the amplitude of the accommodating portion 2 is smaller than the predetermined amplitude, the magnetorheological medium 5 flows into the cavity formed on the side where the spool 36 is pressed through the second flow passage 32 or the third flow passage 33 to balance the pressures of the two medium chambers 4. When the amplitude of the accommodating portion 2 is equal to or greater than the predetermined amplitude, in order to balance the pressures of the magnetorheological medium 5 in the two medium chambers 4, the flow rate of the magnetorheological medium 5 to be flowed is large, so that the magnetorheological medium 5 in one of the two medium chambers 4 with a larger pressure presses the valve element 36, and after flowing into the cavity formed on the pressed side of the valve element 36, the surplus magnetorheological medium 5 overflows from the first flow passage 31 and flows into the other medium chamber 4.
In the present embodiment, the gap between the magnetic member 35 and the valve element 36 is in the range of 1 to 3mm.
In some exemplary embodiments, referring to fig. 7-9, the spool 36 includes a spool seat 364 and a second diaphragm 366. The valve core holder 364 is configured as a hollow cylinder with an upper portion opened, and a plurality of fifth flow passage holes 365 communicating with the fourth flow passage holes 347 are formed at a bottom portion of the valve core holder 364. A second diaphragm 366 is mounted inside the valve core holder 364. Wherein, with the magnetorheological medium 5 pressing against the second diaphragm 366, the second diaphragm 366 moves toward the top wall 341 or the bottom wall 344 to form a cavity with the valve core holder 364 that contains the magnetorheological medium 5.
In the present embodiment, the first flow channel 31 is formed between the first flow channel hole 342, the gap between the valve core seat 364 and the magnetic member 35, and the fourth flow channel hole 347, the second flow channel 32 is formed between the second flow channel hole 343 and the second diaphragm 366, and the third flow channel 33 is formed between the fourth flow channel hole 347, the fifth flow channel hole 365, and the second diaphragm 366. The second diaphragm 366 has a larger volume compliance than the wall surface of the housing 2, and thus the second diaphragm 366 is more easily deformed than the wall surface of the housing 2. That is, in the case where one of the medium chambers 4 is pressed, the second diaphragm 366 has a smaller flow resistance to the magnetorheological medium 5, so that the magnetorheological medium 5 preferentially flows into the cavity formed by the pressed side of the second diaphragm 366 and the valve core holder 364 through the second flow passage 32 or the third flow passage 33. Therefore, in the case where the amplitude of the accommodating portion 2 is smaller than the predetermined amplitude, the magnetorheological medium 5 flows into the cavity formed by the valve core seat 364 and the side of the second diaphragm 366 pressed through the second flow passage 32 or the third flow passage 33 to balance the pressures of the two medium chambers 4. When the amplitude of the accommodating portion 2 is equal to or greater than the predetermined amplitude, in order to balance the pressures of the magnetorheological medium 5 in the two medium chambers 4, the flow rate of the magnetorheological medium 5 to be flowed is large, so that the magnetorheological medium 5 in the one of the two medium chambers 4 with the larger pressure presses the second diaphragm 366, and after flowing into the cavity formed by the pressed side of the second diaphragm 366 and the valve core seat 364, the surplus magnetorheological medium 5 overflows from the first flow passage 31 and flows into the other medium chamber 4.
In the present embodiment, the fourth flow passage hole 347 and the fifth flow passage hole 365 are configured to be substantially circular or rectangular.
In addition, the top wall 341, the spool seat 364, and the bottom wall 344 are connected by bolts 367.
In some exemplary embodiments, referring to fig. 5 and 9, each of the first flow passage holes 342 is configured in a substantially fan shape, and the second flow passage holes 343 and the third flow passage holes 348 are configured in a substantially circular or rectangular shape.
In some exemplary embodiments, referring to fig. 1-2 and 6, the receiving portion 2 includes a rubber main spring 21, a bracket 22, and a flexible package 23. The rubber main spring 21 is opened at an upper side and is mounted on the base 1 at a lower side. The bracket 22 is surrounded inside the rubber main spring 21, and one end of the bracket 22 horizontally protrudes out of the rubber main spring 21, and is adapted to be connected with an engine to provide a supporting force in a height direction for the engine. The flexible package 23 is mounted on the upper side of the rubber main spring 21, and the rubber main spring 21, the bracket 22 and the flexible package 23 together form a cavity 24 for accommodating the magnetorheological medium 5.
In the present embodiment, the rubber main spring 21, the bracket 22, and the flexible seal 23 are bonded together by a vulcanization process. The bracket 22 surrounds the inside of the rubber main spring 21, and one end horizontally protrudes from the rubber main spring 21, and the engine is mounted on a portion of the bracket 22 protruding from the rubber main spring 21, so that the bracket 22 provides a supporting force in a height direction to the engine. Thus, at the initial time of the engine suspension installation between the engine and the vehicle body, the bracket 22 presses the rubber main spring 21 downward by the gravity of the engine itself, so that the magnetorheological medium 5 located inside the lower medium chamber 4 flows into the medium chamber 4 located on the upper side through the first flow passage 31 to jack up the flexible seal member 23 upward, so that the accommodating portion 2 is in the state as shown in fig. 3 or 7.
Wherein, flexible seal 23 external diameter and support 22 internal diameter interference fit, the two can not be moved each other, and case 36 and support 22 inner wall pretension contact, case 36 does not take place relative movement with flexible seal 23 and support 22.
Further, based on the support 22 surrounding the inside of the rubber main spring 21 and one end horizontally extending out of the rubber main spring 21, the engine is mounted on the portion of the support 22 extending out of the rubber main spring 21, the support 22 provides the supporting force in the height direction for the engine, and the damping of the accommodating portion 2 is changed by the change of the flow damping of the magnetorheological medium 5 in the accommodating portion 2 to change the damping provided for the engine and the vehicle body, thereby realizing the change of the damping provided for the engine and the vehicle body depending on the amplitude of the engine and the vehicle body.
In some exemplary embodiments, referring to fig. 2 and 6, the flexible seal 23 has an openable and closable fill port 231 formed therein adapted to fill the interior of the cavity 24 with magnetorheological medium 5.
In this embodiment, the liquid injection port 231 is provided with a blocking plug 232 to block the liquid injection port 231, so that on one hand, the cavity 24 is blocked during the engine suspension operation, and on the other hand, the magnetorheological medium 5 in the cavity 24 is convenient to replace during the engine suspension maintenance.
In some exemplary embodiments, referring to fig. 1-2 and 6, the base 1 includes a housing 11 and a support frame 12. The housing 11 is mounted on the body of an automobile. The support frame 12 is mounted inside the housing 11 and connected to the accommodating portion 2.
In the present embodiment, the housing 11 is combined with the support frame 12 to connect the vehicle body with the accommodating portion 2.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the invention thereto, but to limit the invention thereto, and any modifications, equivalents, improvements and equivalents thereof may be made without departing from the spirit and principles of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510150368.4A CN119878753A (en) | 2025-02-11 | 2025-02-11 | Engine mount for a motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510150368.4A CN119878753A (en) | 2025-02-11 | 2025-02-11 | Engine mount for a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119878753A true CN119878753A (en) | 2025-04-25 |
Family
ID=95439513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510150368.4A Pending CN119878753A (en) | 2025-02-11 | 2025-02-11 | Engine mount for a motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119878753A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2634530A1 (en) * | 1988-07-19 | 1990-01-26 | Hutchinson | Improvements to hydraulic anti-vibration devices |
| US6412761B1 (en) * | 2001-04-25 | 2002-07-02 | Delphi Technologies, Inc. | Hybrid hydraulic mount with magnetorheological fluid chamber |
| US20020171186A1 (en) * | 2001-05-16 | 2002-11-21 | Delphi Technologies, Inc. | Hydraulic mount with magnetorheological fluid |
| JP2008281118A (en) * | 2007-05-11 | 2008-11-20 | Marugo Rubber Ind Co Ltd | Fluid sealed type vibration control device |
| CN104455176A (en) * | 2014-11-27 | 2015-03-25 | 安徽微威胶件集团有限公司 | Novel magneto-rheological elastomer decoupling membrane element |
| CN112829572A (en) * | 2021-01-04 | 2021-05-25 | 株洲时代新材料科技股份有限公司 | Automobile engine initiative suspension |
| CN113446347A (en) * | 2021-07-02 | 2021-09-28 | 安徽誉林汽车部件有限公司 | Hydraulic suspension of automobile engine |
| CN113983114A (en) * | 2021-11-27 | 2022-01-28 | 安徽江淮汽车集团股份有限公司 | Multi-inertia channel type power assembly hydraulic suspension with switchable states |
| CN221278646U (en) * | 2023-09-19 | 2024-07-05 | 福州景腾精工橡塑制品有限公司 | Mute one-way valve |
-
2025
- 2025-02-11 CN CN202510150368.4A patent/CN119878753A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2634530A1 (en) * | 1988-07-19 | 1990-01-26 | Hutchinson | Improvements to hydraulic anti-vibration devices |
| US6412761B1 (en) * | 2001-04-25 | 2002-07-02 | Delphi Technologies, Inc. | Hybrid hydraulic mount with magnetorheological fluid chamber |
| US20020171186A1 (en) * | 2001-05-16 | 2002-11-21 | Delphi Technologies, Inc. | Hydraulic mount with magnetorheological fluid |
| JP2008281118A (en) * | 2007-05-11 | 2008-11-20 | Marugo Rubber Ind Co Ltd | Fluid sealed type vibration control device |
| CN104455176A (en) * | 2014-11-27 | 2015-03-25 | 安徽微威胶件集团有限公司 | Novel magneto-rheological elastomer decoupling membrane element |
| CN112829572A (en) * | 2021-01-04 | 2021-05-25 | 株洲时代新材料科技股份有限公司 | Automobile engine initiative suspension |
| CN113446347A (en) * | 2021-07-02 | 2021-09-28 | 安徽誉林汽车部件有限公司 | Hydraulic suspension of automobile engine |
| CN113983114A (en) * | 2021-11-27 | 2022-01-28 | 安徽江淮汽车集团股份有限公司 | Multi-inertia channel type power assembly hydraulic suspension with switchable states |
| CN221278646U (en) * | 2023-09-19 | 2024-07-05 | 福州景腾精工橡塑制品有限公司 | Mute one-way valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4630808A (en) | Vibration isolating devices | |
| EP2006570B1 (en) | Vibration damper | |
| JP5557837B2 (en) | Vibration isolator | |
| CN101509532A (en) | Fluid-filled cylindrical vibration-damping device | |
| JP6431795B2 (en) | Fluid filled vibration isolator | |
| JP2003139190A (en) | Liquid pressure buffer damping mount | |
| KR20150053978A (en) | Liquid filled mount | |
| KR20090055930A (en) | Fluid-Enclosed Engine Mounting Units | |
| CN119878753A (en) | Engine mount for a motor vehicle | |
| JP5530816B2 (en) | Fluid filled vibration isolator | |
| JP5280923B2 (en) | Vibration isolator | |
| JP5038210B2 (en) | Fluid filled vibration isolator | |
| JP3682813B2 (en) | Liquid-filled mount and assembly method thereof | |
| JP4986292B2 (en) | Fluid filled vibration isolator | |
| JP4075066B2 (en) | Fluid filled engine mount | |
| JP2003004088A (en) | Liquid sealed vibration isolator | |
| KR102845963B1 (en) | Shock absorber | |
| JP4572773B2 (en) | Vehicle suspension system | |
| JP2827841B2 (en) | Fluid-filled anti-vibration assembly | |
| JP2018017304A (en) | Fluid sealed type vibration-proof device | |
| JP5689645B2 (en) | Vibration isolator | |
| JP6134208B2 (en) | Fluid filled vibration isolator | |
| JP7523695B2 (en) | Shock absorber | |
| JP2015028369A (en) | Fluid sealed type vibration control device | |
| JP3838280B2 (en) | Liquid-filled engine mount |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |