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WO2018173871A1 - Dispositif d'accumulateurs - Google Patents

Dispositif d'accumulateurs Download PDF

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Publication number
WO2018173871A1
WO2018173871A1 PCT/JP2018/009906 JP2018009906W WO2018173871A1 WO 2018173871 A1 WO2018173871 A1 WO 2018173871A1 JP 2018009906 W JP2018009906 W JP 2018009906W WO 2018173871 A1 WO2018173871 A1 WO 2018173871A1
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WO
WIPO (PCT)
Prior art keywords
oil passage
valve
accumulator
accumulators
oil
Prior art date
Application number
PCT/JP2018/009906
Other languages
English (en)
Japanese (ja)
Inventor
純 板倉
大輔 村田
慶多 小林
Original Assignee
日本電産トーソク株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本電産トーソク株式会社 filed Critical 日本電産トーソク株式会社
Priority to CN201890000600.XU priority Critical patent/CN210715320U/zh
Priority to JP2019507587A priority patent/JP7014219B2/ja
Publication of WO2018173871A1 publication Critical patent/WO2018173871A1/fr

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  • the present invention relates to an accumulator device.
  • Patent Document 1 describes an accumulator mounted on a vehicle drive device.
  • an object of the present invention is to provide a large-capacity and small-sized accumulator device that includes an accumulator and a solenoid valve.
  • One aspect of the accumulator device includes an oil passage inside, a body attached to an attached body, a plurality of accumulators connected to the oil passage, and an electromagnetic that controls the flow of oil in the oil passage.
  • the solenoid valve has a movable element that moves in a first direction, and a valve portion that is disposed in the oil passage and that is opened and closed as the movable element moves in the first direction.
  • the oil path includes an import into which the oil flows, an outport from which the oil is discharged, an input oil path that connects the import and the valve unit, and the plurality of accumulators, and the valve unit.
  • An output oil passage that connects the outport, and each of the plurality of accumulators extends in a first direction and is arranged side by side in a second direction orthogonal to the first direction.
  • a large-capacity and small-sized accumulator device that includes an accumulator and a solenoid valve is provided.
  • FIG. 1 is a perspective view showing the accumulator device of the first embodiment.
  • FIG. 2 is a view showing the accumulator device of the first embodiment and is a cross-sectional view taken along the line II-II in FIG.
  • FIG. 3 is a diagram of the accumulator device according to the first embodiment viewed from below.
  • FIG. 4 is a view showing the accumulator device of the first embodiment and is a cross-sectional view taken along the line IV-IV in FIG.
  • FIG. 5 is a view showing the accumulator device of the first embodiment, and is a cross-sectional view taken along line VV in FIG.
  • FIG. 6 is a cross-sectional view showing a state where the accumulator of the first embodiment is accumulated.
  • FIG. 7 is a perspective view showing an accumulator device according to the second embodiment.
  • the X-axis direction is the front-rear direction X with the positive side as the front side and the negative side as the rear side.
  • the Y-axis direction is a left-right direction Y that is orthogonal to the front-rear direction X, with the positive side on the left and the negative side on the right.
  • the Z-axis direction is a vertical direction Z that is orthogonal to both the front-rear direction X and the left-right direction Y and that has the positive side as the upper side and the negative side as the lower side.
  • a side near the center of the accumulator device 10 in the left-right direction Y may be referred to as “inside of the left-right direction Y”, and a side far from the center of the accumulator device 10 in the left-right direction Y It may be called “outside of Y”.
  • the front-rear direction, the left-right direction, the up-down direction, the front side, the rear side, the right side, the left side, the upper side, and the lower side are simply names for explaining the relative positional relationship of each part. An arrangement relationship other than the arrangement relationship indicated by these names may be used.
  • the front-rear direction X corresponds to the first direction.
  • the left-right direction Y corresponds to the second direction.
  • the vertical direction Z corresponds to the third direction.
  • the front side corresponds to one side in the first direction.
  • the rear side corresponds to the other side in the first direction.
  • the accumulator device 10 includes a body 20, a check valve 50, a solenoid valve 40, and a plurality of accumulators 30. That is, the accumulator device 10 is a device in which the accumulator 30 and the electromagnetic valve 40 are unitized. As shown in FIG. 1, in the present embodiment, the plurality of accumulators 30 include a pair of accumulators 30 ⁇ / b> A and 30 ⁇ / b> B adjacent in the left-right direction Y.
  • the pair of accumulators 30A and 30B have the same configuration except that they are arranged at different positions and are arranged symmetrically in the left-right direction Y.
  • the accumulator 30 ⁇ / b> A and the accumulator 30 ⁇ / b> B are simply referred to as the accumulator 30 when they are not particularly distinguished from each other.
  • the body 20 is attached to a control valve CV as an attached body.
  • the body 20 includes a base portion 21 and a protruding portion 22.
  • the base 21 has a base body 21a and four attachment portions 21b.
  • the shape of the base body 21a viewed from below is a substantially rectangular shape.
  • the attachment portion 21b protrudes outward in the left-right direction Y from both ends in the front-rear direction X of the base body 21a.
  • the mounting portion 21 b is fixed by tightening a screw passed through a hole penetrating the mounting portion 21 b in the vertical direction Z into the control valve CV. Thereby, the accumulator apparatus 10 is fixed to the control valve CV.
  • the lower surface of the base body 21 a and the lower surface of the mounting portion 21 b are arranged on the same plane orthogonal to the vertical direction Z, and constitute the lower surface of the base 21.
  • the lower surface of the base portion 21 is a flat surface and is a surface along the front-rear direction X and the left-right direction Y.
  • the lower surface of the base 21 is the lower surface 20 b of the body 20. In a state where the accumulator device 10 is fixed to the control valve CV, the lower surface 20b of the body 20 is fixed in contact with the control valve CV.
  • the protruding portion 22 is a portion protruding upward from the front portion of the base body 21a.
  • the protrusion 22 has a recess 23.
  • the recess 23 is recessed forward from the rear surface of the protrusion 22.
  • the cross-sectional shape orthogonal to the front-rear direction X of the recess 23 is, for example, a circular shape.
  • the recess 23 has a large-diameter recess 23a and a small-diameter recess 23b.
  • the large-diameter recess 23 a opens on the rear surface of the protrusion 22.
  • the small diameter recess 23b is recessed forward from the bottom surface of the large diameter recess 23a.
  • the inner diameter of the small diameter recess 23b is smaller than the inner diameter of the large diameter recess 23a.
  • the body 20 has an oil passage 20a inside.
  • the oil passage 20 a includes a part of the recess 23 described above, an import 26, an outport 27, an input oil passage 24, and an output oil passage 25.
  • the import 26 is a port through which oil O flows from the first port IP of the control valve CV.
  • the out port 27 is a port for discharging the oil O to the second port OP of the control valve CV.
  • the import 26 and the outport 27 open on the lower surface 20b of the body 20.
  • the import 26 is disposed at the front end of the lower surface 20 b of the body 20 at the center in the left-right direction Y.
  • the outport 27 is disposed at the center in the front-rear direction X at the center in the left-right direction Y on the lower surface 20 b of the body 20.
  • the shape viewed from the lower side of the import 26 and the shape viewed from the lower side of the outport 27 are, for example, circular.
  • the input oil passage 24 has a first portion 24a and a second portion 24b.
  • the first portion 24 a extends between the pair of accumulators 30 ⁇ / b> A and 30 ⁇ / b> B and extends upward from the import 26. That is, the input oil passage 24 passes between a pair of accumulators 30A and 30B adjacent in the left-right direction Y.
  • the inner peripheral surface of the first portion 24a has a cylindrical shape extending in the up-down direction Z.
  • the first portion 24 a is provided at the front end of the body 20. That is, the input oil passage 24 is provided at the front end of the body 20.
  • the first portion 24a has an opening 24c at the upper end.
  • the opening 24 c is closed by the plug body 60.
  • a male screw portion provided on the outer peripheral surface of the plug body 60 is fastened to a female screw portion provided on the inner peripheral surface of the upper end portion of the first portion 24 a, so that the first Fixed in the portion 24a.
  • the first portion 24 a has a connection portion 24 e connected to the accumulator 30 above the import 26. That is, the input oil passage 24 has a connection portion 24e. As shown in FIG. 4, in the present embodiment, a pair of accumulators 30A and 30B are connected to both sides of the connecting portion 24e in the left-right direction Y, respectively. As a result, the input oil passage 24 is connected to a plurality of accumulators 30.
  • the first portion 24a has a valve seat portion 24d in which the inner diameter of the first portion 24a decreases toward the import 26 in the vertical direction Z, that is, toward the lower side. The valve seat portion 24d is located below the connection portion 24e.
  • the second portion 24b extends below the opening 24c in the first portion 24a and extends rearward from a portion above the connection portion 24e.
  • the rear end portion of the second portion 24b opens to the lower portion of the bottom surface of the small diameter concave portion 23b.
  • the inner peripheral surface of the second portion 24b has a cylindrical shape extending in the front-rear direction X.
  • the input oil passage 24 connects the import 26 and a later-described valve portion 43 through the small-diameter concave portion 23b.
  • the output oil passage 25 extends upward from the outport 27.
  • the upper end portion of the output oil passage 25 opens to the inner peripheral surface of the large-diameter recess 23a and is connected to a valve portion 43 described later.
  • the output oil passage 25 connects the valve portion 43 and the outport 27.
  • the inner peripheral surface of the output oil passage 25 has a cylindrical shape extending in the vertical direction Z.
  • the output oil passage 25 is provided in a portion on the front side of the rear end portion of the body 20. Therefore, compared with the case where the output oil passage 25 is provided at the rear end of the body 20, the oil passage 20a can be reduced in size in the front-rear direction X, and the entire accumulator device 10 can be easily reduced in size in the front-rear direction X.
  • the output oil passage 25 is provided in the center of the body 20 in the front-rear direction X. As shown in FIG. 3, the output oil passage 25 passes between a pair of accumulators 30 ⁇ / b> A and 30 ⁇ / b> B adjacent in the left-right direction Y.
  • the input oil path 24 and the output oil path 25 are different flow paths from each other.
  • a plurality of accumulators 30, that is, a pair of accumulators 30 ⁇ / b> A and 30 ⁇ / b> B, extend in the front-rear direction X and are arranged side by side in the left-right direction Y orthogonal to the front-rear direction X.
  • the pair of accumulators 30A and 30B are disposed adjacent to both sides in the left-right direction Y of the first portion 24a.
  • the plurality of accumulators 30 are held on the base 21.
  • the position of the accumulator 30A in the front-rear direction X is the same as the position of the accumulator 30B in the front-rear direction X.
  • the accumulator 30 includes an outer cylinder portion 31, a fixing portion 32, a pressure receiving portion 33, an O-ring 34, and compression coil springs 35a and 35b.
  • the outer cylinder portion 31 has a bottomed cylindrical shape extending in the front-rear direction X.
  • the outer cylinder part 31 opens to the rear side.
  • the outer cylinder portion 31 of the accumulator 30A is centered on the second central axis J2.
  • the outer cylinder portion 31 of the accumulator 30B is centered on the third central axis J3.
  • the outer cylinder part 31 is a part of the body 20 and is provided as a single member with the base part 21 and the protruding part 22.
  • the outer cylinder part 31 of the accumulator 30A and the outer cylinder part 31 of the accumulator 30B are connected at the inner end in the left-right direction Y.
  • the fixing portion 32 has a bottomed cylindrical shape that opens to the front side.
  • the fixed portion 32 is fitted to the rear end portion of the inside of the outer cylinder portion 31.
  • the fixing part 32 is supported from the rear side by a C ring 37 fitted in a groove provided on the inner peripheral surface 31 a of the outer cylinder part 31 and is held in the outer cylinder part 31, for example.
  • the fixing portion 32 has a vent hole 32 a that penetrates the bottom portion of the fixing portion 32 in the front-rear direction X.
  • the ventilation hole 32 a connects the outside and the inside of the accumulator 30.
  • the pressure receiving portion 33 has a bottomed cylindrical shape that opens to the rear side.
  • the pressure receiving portion 33 is arranged to be movable in the front-rear direction X at a portion located in front of the fixed portion 32 inside the outer cylinder portion 31.
  • a central portion of the bottom portion of the pressure receiving portion 33 is a contact portion 33 a that protrudes forward from the outer edge portion of the bottom portion of the pressure receiving portion 33.
  • the front end surface of the contact portion 33 a can contact the bottom surface of the outer cylinder portion 31.
  • the storage space 36 in which the oil O is stored is provided.
  • the storage space 36 is connected to the connection portion 24e.
  • the inner end portion in the left-right direction Y of the storage space 36 overlaps and is connected to the outer end portion in the left-right direction Y of the connection portion 24 e.
  • the some accumulator 30 is connected with the oil path 20a, ie, the input oil path 24 in this embodiment. Oil O flows into the storage space 36 via the connecting portion 24e.
  • the O-ring 34 is attached to the outer peripheral surface of the pressure receiving portion 33.
  • the O-ring 34 seals between the outer peripheral surface of the pressure receiving portion 33 and the inner peripheral surface 31 a of the outer cylinder portion 31. Thereby, it can suppress that the oil O which flowed into the storage space 36 leaks to the part located behind the storage space 36 among the insides of the outer cylinder part 31.
  • the compression coil springs 35a and 35b extend in the front-rear direction X.
  • the compression coil springs 35 a and 35 b are arranged between the fixed portion 32 and the pressure receiving portion 33 in the front-rear direction X.
  • the rear end portions of the compression coil springs 35 a and 35 b are inserted into the fixed portion 32 and contact the bottom surface of the fixed portion 32.
  • the front end portions of the compression coil springs 35 a and 35 b are inserted into the pressure receiving portion 33 and contact the bottom surface of the pressure receiving portion 33.
  • the compression coil springs 35a and 35b apply an elastic force in a direction away from the fixed portion 32 to the pressure receiving portion 33, that is, a forward elastic force.
  • the inner diameter of the compression coil spring 35a is larger than the outer diameter of the compression coil spring 35b.
  • the compression coil spring 35b is inserted into the compression coil spring 35a.
  • the electromagnetic valve 40 shown in FIG. 2 controls the flow of the oil O in the oil passage 20a.
  • the electromagnetic valve 40 includes a solenoid part 41, a mover 42, and a valve part 43.
  • the solenoid part 41 has an outer cylinder part 41a and a solenoid part main body (not shown) accommodated in the outer cylinder part 41a. That is, the solenoid valve 40 has an outer cylinder part 41a and a solenoid part body.
  • the outer cylinder portion 41a has a cylindrical shape extending in the front-rear direction X around the first central axis J1 extending in the front-rear direction X.
  • the outer cylinder part 41a opens to the front side.
  • the outer cylinder portion 41 a is disposed on the upper side of the base portion 21.
  • the rear end portion of the outer cylinder portion 41 a is in the same position as the rear end portion of the base portion 21 and the rear end portion of the accumulator 30 in the front-rear direction X.
  • the mover 42 moves in the front-rear direction X by the propulsive force received from the solenoid unit 41.
  • the mover 42 is a cylindrical pin centered on the first central axis J1.
  • the valve part 43 projects forward from the solenoid part 41.
  • the valve unit 43 includes a nozzle member 44, a valve chamber member 45, and a valve body 46.
  • the nozzle member 44 has a cylindrical shape extending in the front-rear direction X about the first central axis J1.
  • the nozzle member 44 is fitted into the recess 23. Thereby, the valve part 43 is arrange
  • the nozzle member 44 has a large diameter portion 44a and a small diameter portion 44b.
  • the large diameter portion 44 a is a portion that is fixed to the front surface of the solenoid portion 41.
  • the large diameter portion 44a is fitted into the large diameter concave portion 23a.
  • the large diameter portion 44a has a through hole 44c that penetrates the large diameter portion 44a in the front-rear direction X.
  • the mover 42 is passed through the through hole 44c.
  • the small diameter part 44b is a part connected to the front side of the large diameter part 44a.
  • the outer diameter of the small diameter portion 44b is smaller than the outer diameter of the large diameter portion 44a.
  • the small diameter portion 44b is fitted into the small diameter concave portion 23b.
  • the small diameter portion 44b has a through hole 44d that penetrates the small diameter portion 44b in the front-rear direction X.
  • the through hole 44d opens inside the small-diameter recess 23b and is connected to the input oil passage 24 via the small-diameter recess 23b.
  • the nozzle member 44 has an outflow oil passage 44e that penetrates the nozzle member 44 in the vertical direction Z.
  • the spilled oil passage 44e is located in the front-rear direction X between the large diameter portion 44a and the small diameter portion 44b.
  • the lower end of the spilled oil passage 44e is connected to the upper end of the output oil passage 25.
  • the valve chamber member 45 is embedded between the large diameter portion 44a and the small diameter portion 44b of the nozzle member 44 in the front-rear direction X.
  • the valve chamber member 45 has a cylindrical shape that opens on both sides in the front-rear direction X.
  • the rear opening of the valve chamber member 45 opens into the through hole 44c.
  • An inflow port 45a which is an opening on the front side of the valve chamber member 45 opens into the through hole 44d.
  • the valve chamber member 45 has an outflow port 45 b penetrating downward from the inner peripheral surface of the valve chamber member 45 to the outer peripheral surface of the valve chamber member 45.
  • the outflow port 45b opens to the outflow oil passage 44e.
  • the valve body 46 is accommodated in the valve chamber member 45.
  • the valve body 46 is a sphere.
  • the front end of the mover 42 can contact the valve body 46.
  • the valve portion 43 is opened and closed as the mover 42 moves in the front-rear direction X.
  • the oil O that has flowed into the small-diameter recess 23b from the input oil passage 24 flows into the valve chamber member 45 through the through hole 44d and the inflow port 45a, and flows out from the outflow port 45b to the outflow oil passage 44e.
  • the oil O flowing into the input oil passage 24 from the import 26 flows into the output oil passage 25 and flows out from the outport 27.
  • the valve part 43 will be in the closed state.
  • the oil O that has flowed into the small diameter recess 23 b from the input oil passage 24 does not flow into the valve chamber member 45 and is prevented from flowing into the output oil passage 25.
  • the state shown in FIG. 2 is a state in which the valve portion 43 is closed.
  • the direction in which the mover 42 of the electromagnetic valve 40 moves is the same as the direction in which the plurality of accumulators 30 extend.
  • the direction in which the mover 42 moves tends to be the longitudinal direction of the electromagnetic valve 40. Therefore, it is easy to arrange a plurality of accumulators 30 and electromagnetic valves 40 with their longitudinal directions aligned.
  • the plurality of accumulators 30 are arranged side by side in a direction orthogonal to the extending direction.
  • the plurality of accumulators 30 and The electromagnetic valves 40 can be arranged together in a space efficient manner.
  • each accumulator 30 can be reduced compared to the case where only one accumulator 30 is provided, and each accumulator 30 can be made smaller.
  • the entire accumulator device 10 can be easily downsized as compared with the case where one large accumulator is arranged.
  • the accumulator 10 having a large capacity and a small size can be obtained while unitizing the plurality of accumulators 30 and the electromagnetic valves 40.
  • the front-rear direction X and the left-right direction Y are directions along the lower surface 20 b of the body 20.
  • the direction in which the plurality of accumulators 30 extend and the direction in which the plurality of accumulators 30 are aligned are the directions along the lower surface 20 b of the body 20. Therefore, the accumulator device 10 can be downsized in the direction orthogonal to the surface to which the lower surface 20b is fixed in the control valve CV, that is, in the vertical direction Z. Thereby, when the accumulator apparatus 10 is fixed to the control valve CV, it is possible to suppress the accumulator apparatus 10 from protruding greatly from the control valve CV.
  • the solenoid valve 40 is disposed at a position shifted in the vertical direction Z with respect to the accumulator 30 and is also in the vertical direction with both of the pair of accumulators 30 ⁇ / b> A and 30 ⁇ / b> B adjacent in the left-right direction Y. Arranged at a position overlapping Z. Therefore, the accumulator device 10 can be downsized in the left-right direction Y as compared with the case where the electromagnetic valve 40 and the pair of accumulators 30A, 30B are arranged in the left-right direction Y.
  • the electromagnetic valve 40 is disposed on the upper side of the accumulator 30. As shown in FIGS. 3 and 4, the electromagnetic valve 40 is arranged in the center between the pair of accumulators 30 ⁇ / b> A and 30 ⁇ / b> B in the left-right direction Y.
  • a part of the solenoid valve 40 is inserted into the V groove 38.
  • a part of the electromagnetic valve 40 is sandwiched between the pair of accumulators 30A and 30B in the left-right direction Y, and is disposed at a position overlapping both the pair of accumulators 30A and 30B in the left-right direction Y. Therefore, as described above, the electromagnetic valve 40 is disposed so as to overlap with the pair of accumulators 30A and 30B in the up-down direction Z, and the V-groove 38 generated between the pair of accumulators 30A and 30B is used to 40 can be arranged close to the vertical direction Z with respect to the accumulators 30A and 30B.
  • the accumulator device 10 can be downsized in the vertical direction Z.
  • the pair of accumulators 30A, 30B and the electromagnetic valve 40 can be arranged together in a more space efficient manner, and the accumulator device 10 can be reduced in both the left-right direction Y and the up-down direction Z.
  • a part of the solenoid valve 40 inserted into the V groove 38 is the lower end portion of the outer cylinder portion 41a.
  • the electromagnetic valve 40 is disposed on the upper side of the accumulator 30, the dimension in the left-right direction Y of the accumulator device 10 is increased toward the side fixed to the control valve CV, that is, the lower side. It's easy to do. Thereby, it is easy to fix the accumulator device 10 to the control valve CV stably.
  • the some accumulator 30 and the solenoid valve 40 have the cylindrical outer cylinder parts 31 and 41a each extended in the front-back direction X, V groove
  • the electromagnetic valve 40 it is easy to insert a part of the electromagnetic valve 40, that is, the lower end of the outer cylinder portion 41a into the V-groove 38. Therefore, as described above, the pair of accumulators 30A and 30B and the electromagnetic valve 40 can be arranged more efficiently and collectively using the V-groove 38.
  • the outer cylinder parts 31 and 41a may be a polygonal cylinder shape, for example.
  • the check valve 50 is disposed in the oil passage 20a. More specifically, the check valve 50 is disposed in a portion of the input oil passage 24 located between the connection portion 24e and the import 26. In the present embodiment, the portion located between the connecting portion 24e and the import 26 in the input oil passage 24 is a portion located between the connecting portion 24e and the import 26 in the first portion 24a. .
  • the check valve 50 allows the flow of oil O from the import 26 to the valve portion 43 or the accumulator 30, and blocks the flow of oil O from the valve portion 43 or the accumulator 30 to the import 26. Therefore, the check valve 50 can prevent the oil O flowing into the input oil passage 24 from flowing back into the import 26. Further, the check valve 50 can prevent the oil O flowing into the accumulator 30 through the connecting portion 24e from flowing back into the import 26.
  • the check valve 50 includes the valve seat portion 24d, the valve body 51, and the elastic member 52 described above.
  • the valve body 51 is, for example, a sphere.
  • the valve body 51 is disposed so as to be movable in the vertical direction Z on the valve portion 43 side, that is, on the upper side of the valve seat portion 24d in the first portion 24a.
  • the valve body 51 can close the first portion 24a by being fitted to the valve seat portion 24d. 2 and 4 show a state in which the valve body 51 is fitted into the valve seat portion 24d and the first portion 24a is closed.
  • the check valve 50 can be configured with a simple configuration.
  • the elastic member 52 is, for example, a compression coil spring extending in the vertical direction Z.
  • the elastic member 52 is disposed in the first portion 24a.
  • the elastic member 52 is located between the valve body 51 and the plug body 60 in the vertical direction Z.
  • the upper end of the elastic member 52 contacts the lower surface of the plug body 60.
  • the lower end of the elastic member 52 is in contact with the valve body 51.
  • the elastic member 52 applies an elastic force to the valve body 51 in a direction in which the valve body 51 is pressed against the valve seat portion 24d, that is, downward in the present embodiment.
  • the valve body 51 can be maintained at a position closer to the import 26 than the connection portion 24e in the first portion 24a. Therefore, it is possible to suppress the valve body 51 from moving toward the opening 24c rather than the connection portion 24e in the first portion 24a, and to prevent the oil O in the accumulator 30 from flowing back to the import 26.
  • the check valve 50 can be easily inserted into the first portion 24a from the opening 24c.
  • the valve body 51 and the elastic member 52 are inserted into the first portion 24 a from the opening 24 c, and then the opening 24 c is closed by the plug 60.
  • the check valve 50 can be easily disposed in the first portion 24a.
  • valve body 51 When oil O flows from the import 26 into the first portion 24a of the input oil passage 24, the valve body 51 is pushed up against the elastic force of the elastic member 52 by the oil pressure of the oil O that has flowed in, and the first portion 24a is opened. Is done. And the oil O which flowed into the 1st part 24a flows into the valve part 43 via the storage space 36 from the connection part 24e, or the small diameter recessed part 23b from the 2nd part 24b.
  • the valve portion 43 when the valve portion 43 is in a closed state, the oil O in the input oil passage 24 does not flow into the output oil passage 25, and therefore if the oil O continues to flow into the input oil passage 24, Increases hydraulic pressure.
  • the oil O further flows into the storage space 36, the oil pressure of the oil O in the storage space 36 also rises, and the pressure receiving portion 33 is pushed rearward by the oil pressure of the oil O. Move. Thereby, the volume of the storage space 36 is increased, and the oil O stored in the storage space 36 is increased.
  • the compression coil springs 35a and 35b are compressed by the pressure receiving portion 33 moving to the rear side. Thereby, the pressure which pushes the oil O in the storage space 36 through the pressure receiving part 33 is accumulated in the accumulator 30.
  • the structure of the accumulator device may be complicated and the accumulator device may be easily enlarged. Specifically, for example, when the same oil passage is used as the input oil passage and the output oil passage, it is necessary to switch the check valve between inflow and outflow, and the accumulator device becomes complicated. There is a case.
  • the accumulator device 10 since the input oil passage 24 and the output oil passage 25 are separate passages, the oil as described above can be obtained only by arranging the check valve 50 in the input oil passage 24. It is possible to realize the flow of O. Thereby, the structure of the oil path 20a can be simplified and the structure of the accumulator apparatus 10 can be simplified. Therefore, according to the present embodiment, the accumulator device 10 having a simple structure can be obtained while the accumulator 30 and the electromagnetic valve 40 are unitized. Thereby, the accumulator device 10 can be easily downsized.
  • At least one of the input oil passage 24 and the output oil passage 25 passes between the pair of accumulators 30A and 30B adjacent in the left-right direction Y. Therefore, compared with the case where both of the input oil passage 24 and the output oil passage 25 do not pass between the pair of accumulators 30A and 30B, the total length of the oil passage 20a can be easily shortened. In this embodiment, since both of the input oil passage 24 and the output oil passage 25 pass between the pair of accumulators 30A and 30B, the total length of the oil passage 20a can be easily shortened.
  • the first portion 24a of the input oil passage 24 having the connection portion 24e passes between the pair of accumulators 30A and 30B, so that the oil O in the input oil passage 24 is connected. It flows from the portion 24e to both sides in the left-right direction Y and is supplied to at least a pair of accumulators 30A and 30B. Thereby, the oil O in the input oil path 24 can be easily flowed into the storage space 36 of the accumulators 30A and 30B.
  • the connecting portion 24e overlaps with a part of the storage space 36, the oil O flowing in the input oil passage 24 is more likely to flow into the storage space 36 of the accumulator 30.
  • the oil O in the input oil passage 24 may flow from the connection portion 24e to both sides in the left-right direction Y and to the three or more accumulators 30.
  • the present invention is not limited to the above-described embodiment, and other configurations can be adopted.
  • the plurality of accumulators 30 may be shifted from each other in the front-rear direction X.
  • the plurality of accumulators 30 may be arranged so as to be shifted in the vertical direction Z from each other. Three or more accumulators 30 may be provided.
  • the volumes of the plurality of accumulators 30 may be the same as each other or different from each other.
  • the configuration of the accumulator 30 is not particularly limited, and any known accumulator can be used.
  • the accumulator 30 may be configured to compress a gas such as nitrogen instead of the compression coil springs 35a and 35b.
  • the electromagnetic valve 40 may be arranged at the same position in the vertical direction Z with the plurality of accumulators 30.
  • the electromagnetic valve 40 and the plurality of accumulators 30 may be arranged side by side in the left-right direction Y.
  • the electromagnetic valve 40 may be disposed at a position overlapping with only one of the pair of accumulators 30A and 30B in the vertical direction Z.
  • the solenoid valve 40 may be disposed below the accumulator 30.
  • the configuration of the solenoid valve 40 is not particularly limited, and any known solenoid valve may be used.
  • the input oil passage 24 is not particularly limited as long as the input oil passage 24 connects the import 26 and the valve portion 43 and is connected to a plurality of accumulators 30.
  • the output oil path 25 will not be specifically limited if the valve part 43 and the out port 27 are connected.
  • the input oil passage 24 and the output oil passage 25 may use the same oil passage.
  • the configuration of the check valve 50 is not particularly limited.
  • the front-rear direction X corresponds to the third direction.
  • the left-right direction Y corresponds to the second direction.
  • the vertical direction Z corresponds to the first direction.
  • the pair of accumulators 130 ⁇ / b> A and 130 ⁇ / b> B extend in the vertical direction Z.
  • the outer cylinder part 131 opens upward.
  • the mover of the electromagnetic valve 140 moves in the vertical direction Z.
  • the first central axis J1, the second central axis J2, and the third central axis J3 extend in the vertical direction Z.
  • the first direction that is, the direction in which the accumulators 130A and 130B extend and the direction in which the mover of the electromagnetic valve 140 moves are directions that intersect the lower surface 120b of the body 120.
  • the area of the lower surface 120b of the body 120 can be easily reduced as compared with the first embodiment. Therefore, even when the attachment area of the accumulator device 110 in the control valve CV is small, it is easy to attach the accumulator device 110 to the control valve CV.
  • the first direction is orthogonal to the lower surface 120b.
  • the accumulator device 110 according to the present embodiment has a shape substantially similar to the shape obtained by rotating the accumulator device 10 according to the first embodiment by 90 ° in a posture in which the front surface of the accumulator device 10 is a lower surface.

Landscapes

  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

Dans un mode de réalisation de la présente invention, un dispositif d'accumulateurs est équipé : d'un corps qui a un passage d'huile à l'intérieur de celui-ci et qui est fixé à une cible de fixation ; d'une pluralité d'accumulateurs reliés au passage d'huile ; et d'une vanne électromagnétique pour commander l'écoulement de l'huile à l'intérieur du passage d'huile. La soupape électromagnétique a une partie mobile qui se déplace dans une première direction, et une partie de soupape qui est positionnée dans le passage d'huile et qui s'ouvre et se ferme selon le déplacement de la partie mobile dans la première direction. Le passage d'huile comprend : un orifice d'admission à travers lequel l'huile entre ; un orifice d'évacuation à travers lequel l'huile est évacuée ; un passage d'huile d'entrée qui relie l'orifice d'admission et la partie de soupape et qui est connecté à la pluralité d'accumulateurs ; et un passage d'huile de sortie qui relie la partie de soupape et l'orifice d'évacuation. La pluralité d'accumulateurs sont positionnés de manière à s'étendre dans la première direction tout en étant agencés dans une seconde direction perpendiculaire à la première direction.
PCT/JP2018/009906 2017-03-24 2018-03-14 Dispositif d'accumulateurs WO2018173871A1 (fr)

Priority Applications (2)

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CN201890000600.XU CN210715320U (zh) 2017-03-24 2018-03-14 蓄能器装置
JP2019507587A JP7014219B2 (ja) 2017-03-24 2018-03-14 アキュムレータ装置

Applications Claiming Priority (2)

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JP2017058588 2017-03-24
JP2017-058588 2017-03-24

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WO2018173871A1 true WO2018173871A1 (fr) 2018-09-27

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CN (1) CN210715320U (fr)
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014185520A (ja) * 2013-03-21 2014-10-02 Hitachi Automotive Systems Ltd 内燃機関のバルブタイミング制御システム及び内燃機関のバルブタイミング制御装置のロック解除機構

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8499795B2 (en) 2009-11-24 2013-08-06 Keihin Corporation Solenoid valve device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014185520A (ja) * 2013-03-21 2014-10-02 Hitachi Automotive Systems Ltd 内燃機関のバルブタイミング制御システム及び内燃機関のバルブタイミング制御装置のロック解除機構

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JPWO2018173871A1 (ja) 2020-01-23
JP7014219B2 (ja) 2022-02-01

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