CN105781662B - Double electromagnetism Collaborative Control booster-type air distribution systems - Google Patents

Abstract

It is an object of the invention to provide double electromagnetism Collaborative Control booster-type air distribution systems, including hydraulic oil rail, the first Electromagnetic Control part, charged piston, the second Electromagnetic Control part, control piston, valve body, fuel tank.The present invention significantly reduces valve opening caused by pressure oscillation in system using hydraulic oil rail and closes unstability, it is ensured that the reliability and uniformity of air distribution system work；Hydraulic circuit is opened and closed by double electromagnetism Collaborative Control control valves, hydraulic oil in booster cavity is pressurized using charged piston, so as to fulfill the break-make between valve and blow vent, valve timing and distribution duration angle can effectively be controlled, be conducive to the realization of flexible distribution mode under internal combustion engine difference operating mode, valve control freedom degree is significantly improved, can further improve the economy and engine exhaust of fuel, is conducive to improve the power performance of internal combustion engine.

Description

Double electromagnetic cooperative control booster gas distribution system

technical field

The invention relates to an internal combustion engine, in particular to a gas distribution system of the internal combustion engine.

Background technique

The gas distribution timing and gas distribution duration angle of the gas distribution device of an internal combustion engine have a great influence on the fuel economy, engine power, combustion and emissions. The process of intake and exhaust must be carried out in strict accordance with the timing requirements of the internal combustion engine. In a multi-cylinder internal combustion engine, it must also be carried out in accordance with the prescribed firing sequence to ensure that the internal combustion engine operates under the best working condition. The patent application number 200910184400.1 discloses a continuously variable valve control system for an internal combustion engine, which can optimally control the opening and closing timing, opening and closing speed and Stroke, opening and closing time length and coincidence angle of the intake and exhaust valves, but its crank connecting rod mechanism is connected with the piston, which still belongs to the cam control gas distribution system. The patent application number 200810246252.7 discloses a new type of variable lift gas distribution system, including hydraulic tappets, valves, rocker arms, transmission gears, adjustment rods, stepping motors, and camshafts arranged between the rocker arms and the adjustment rods. During this period, the cam of the camshaft is in contact with the rocker arm and the adjustment rod, the adjustment rod is connected with the transmission gear, and the transmission gear is meshed with the stepping motor. Although this system can realize the change of the valve timing with the requirements of the working conditions, the engine performance can be maximized , but still belongs to the cam control gas distribution system. The traditional camshaft drives the mechanical valve distribution mechanism. The valve movement is controlled by the mechanical transmission between the crankshaft and the camshaft and between the camshaft and each cylinder valve. The valve opening time, duration and lift are determined by the structural parameters. If the above is fixed, it can only ensure the best performance of the internal combustion engine under specific working conditions, which is not conducive to the use of internal combustion engines whose working conditions change frequently.

Contents of the invention

The purpose of the present invention is to provide a dual electromagnetic cooperative control supercharged gas distribution system with easy control of gas distribution phase, convenient and flexible adjustment of gas distribution duration angle and valve lift, and variable driving pressure.

The purpose of the present invention is achieved like this:

The dual-electromagnetic cooperative control pressurized gas distribution system of the present invention is characterized in that it includes a gas distribution unit, a hydraulic oil rail, and a fuel tank, and the gas distribution unit includes a valve body, a first electromagnetic control part, a second electromagnetic control part, a booster Pressure piston, control piston, valve;

The first electromagnetic control part includes a first electromagnetic valve body and a first control valve, the first electromagnetic valve body and the first control valve are located in the valve body, the first electromagnetic valve body includes a first valve body, a first coil, The first armature, the first coil is wound in the first valve body, the first armature is located under the first valve body, the first control valve is connected with the first armature, the upper end of the first control valve is connected with the return spring of the first control valve, The end of the return spring of the first control valve is pushed against the first valve body, and the middle part of the first control valve is provided with a first raised part. The width of the first raised part is wider than that of its upper and lower adjacent parts. The first raised part The valve body part where the protruding part is located is provided with a first protruding part cavity, the adjacent part above the first protruding part and the valve body form a first oil return cavity, and the adjacent part below the first protruding part forms a first oil return cavity with the valve body. In the oil inlet chamber, the upper and lower end surfaces of the first protruding part are respectively matched with the valve body. is the second sealing seat surface;

The supercharging piston is arranged in the valve body and is located below the first electromagnetic control part, a control chamber is formed between the supercharging piston and the valve body above it, and a supercharging chamber is formed between the supercharging piston and the valve body below;

The second electromagnetic control part is located below the pressurization chamber, and the second electromagnetic control part includes a second electromagnetic valve body and a second control valve. Both the second electromagnetic valve body and the second control valve are located in the valve body. The second electromagnetic valve The body includes a second valve body, a second coil, and a second armature. The second coil is wound in the second valve body. The second armature is located under the second valve body. The second control valve is connected to the second armature. The second control valve The upper end of the second control valve is connected to the return spring of the second control valve, and the end of the second control valve return spring is pressed against the second valve body. The middle part of the second control valve is provided with a second raised part, and the width of the second raised part is wider than The width of its upper and lower adjacent parts, the valve body part where the second raised part is located is provided with a second raised part chamber, the adjacent part above the second raised part and the valve body form a second oil return cavity, and the second raised part The part adjacent to the lower portion forms a second oil inlet cavity with the valve body, the upper and lower end surfaces of the second raised part match with the valve body respectively, and the place where the inside of the valve body matches the upper end surface of the second raised part is the third sealing seat surface, The place where the inner side of the valve body cooperates with the lower end surface of the second raised part is the fourth sealing seat surface;

The control piston is arranged in the valve body and is located below the second electromagnetic control part, and a piston chamber is formed between the control piston and the second electromagnetic control part;

The valve body is equipped with oil return main pipe, first high pressure oil inlet hole, second high pressure oil inlet hole, first low pressure oil return hole, second low pressure oil return hole, first high and low pressure through hole, second high and low pressure through hole , the oil return main pipe is connected to the oil tank, the first high pressure oil inlet hole is respectively connected to the hydraulic oil rail and the first oil inlet chamber, the first low pressure oil return hole is connected to the oil return main pipe and the first oil return chamber respectively, and the first high and low pressure through holes are respectively connected The first raised part chamber and the control chamber are connected, the second high-pressure air inlet hole is respectively connected with the second oil inlet chamber and the pressurized chamber, the second low-pressure oil return hole is respectively connected with the second oil return chamber and the oil tank, and the second high and low pressure The through holes communicate with the second protruding part chamber and the piston chamber respectively, the valve is connected under the control piston, the valve is covered with a valve return spring, the end of the valve is equipped with a valve seat, the shell is installed under the valve body, and the valve seat is located outside the shell; The number of air distribution units mentioned is consistent with the number of engine cylinders.

The present invention may also include:

1. The pressurized chamber is connected to the oil return main pipe through the oil suction line, and an oil suction check valve is installed on the oil suction line.

2. The area of the upper end surface of the booster piston is larger than the area of the lower end surface.

The advantage of the present invention is that: the present invention controls the displacement of the first control valve and the second control valve through the cooperative power-on and power-off of the first electromagnetic control part and the second electromagnetic control part, and realizes flexible switching between high and low pressure oil circuits inside the gas distribution system , the hydraulic oil in the booster chamber is boosted by the booster piston, so that the hydraulic pressure acting on the control piston can be flexibly changed, and the hydraulic pressure drives the valve to open and close, so as to realize the on-off between the valve and the vent port, and can effectively control the distribution. Gas timing and gas distribution duration angle; the use of hydraulic oil rail significantly reduces the valve opening and closing instability caused by the hydraulic oil pressure fluctuation caused by the high and low pressure oil circuit conversion of the electromagnetic control part, ensuring the reliability of the gas distribution system and consistency, which is conducive to the realization of flexible gas distribution methods under different working conditions of the internal combustion engine, significantly improves the degree of freedom of valve control, can further improve fuel economy and internal combustion engine emissions, and is conducive to improving the power performance of the internal combustion engine.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of the first electromagnetic control part of the present invention;

Fig. 3 is a schematic diagram of the second electromagnetic control part of the present invention.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

Combining Figures 1 to 3, the present invention provides a dual-electromagnetic coordinated control pressurized gas distribution system, which consists of a hydraulic oil rail 1, a hydraulic oil pipe 2, a first electromagnetic control part 3, a control chamber 4, a booster piston 5, a booster Piston return spring 6, oil suction check valve 7, boost chamber 8, second electromagnetic control part 9, piston chamber 10, control piston 11, valve body 12, spring seat 13, valve return spring 14, valve 15, shell 16, Air vent 17, valve seat 18, oil return pipe 19, oil tank 20, filter 21 and hydraulic oil pump 22 are formed. The left end of the hydraulic oil rail 1 is respectively connected with the hydraulic oil pump 22, the filter 21 and the oil tank 20 through oil pipes. There are multiple hydraulic oil outlets on the hydraulic oil rail 1. The number of hydraulic oil outlets is determined according to the number of cylinders of the internal combustion engine. The outlet communicates with the hydraulic oil inlet opened on the valve body 12 through the hydraulic oil pipe 2 , and the low-pressure oil return port opened on the valve body 12 communicates with the oil tank 20 through the oil return pipe 19 . The first electromagnetic control part 3 is composed of the first control valve return spring 23, the first coil 24, the first control valve 25, the first sealing seat surface 26, the second sealing seat surface 27, the first high pressure oil inlet hole 28, the first The high and low pressure through holes 29, the first low pressure oil return hole 30 and the first armature 31 are composed. The second electromagnetic control part 9 is composed of the second control valve return spring 32, the second coil 33, the second control valve 34, the third sealing seat surface 35, the fourth sealing seat surface 36, the second high pressure oil inlet hole 37, the second The high and low pressure through hole 38, the second low pressure oil return hole 39 and the second armature 40 are composed. The valve body 12 is respectively designed with a first sealing seat surface 26, a second sealing seat surface 27, a first high pressure oil inlet hole 28, a first high and low pressure through hole 29, a first low pressure oil return hole 30, and a third sealing seat surface. 35. The fourth sealing seat surface 36, the second high pressure oil inlet hole 37, the second high and low pressure through hole 38 and the second low pressure oil return hole 39, the first high pressure oil inlet hole 28 passes through the hydraulic oil channel on the valve body 12 and The hydraulic oil inlet is connected, and the first low-pressure oil return hole 30 is connected with the low-pressure oil return channel through the low-pressure oil return channel on the valve body 12. When the first control valve 25 is pressed onto the first sealing seat surface 26, The first high and low pressure through hole 29 communicates with the control chamber 4 and the first high pressure oil inlet hole 28. When the first control valve 25 is pressed onto the second sealing seat surface 27, the first high and low pressure through hole 29 communicates with the control chamber 4 and the first high pressure oil inlet hole 28. The first low-pressure oil return hole 30, when the second control valve 34 is pressed onto the third sealing seat surface 35, the second high-pressure and low-pressure through hole 38 communicates with the piston chamber 10 and the second high-pressure oil inlet hole 37. When the valve 34 is pressed onto the fourth sealing seat surface 36, the second high and low pressure through hole 38 communicates with the piston chamber 10 and the second low pressure oil return hole 39, and the first low pressure oil return hole 30 and the second low pressure oil return hole 39 pass through The hydraulic oil channel opened on the valve body 12 communicates with the low-pressure oil return port, and the first coil 24 and the second coil 33 are connected with the internal combustion engine electronic control unit through electrical connectors, thereby controlling the first control valve 25 and the second control valve 34. Lifting and seating, the first armature 31 and the second armature 40 are respectively fixed on the first control valve 25 and the second control valve 34 through the stop ring, and move together with them, the first control valve 25 passes through the first control valve The return spring 23 is pressed onto the second sealing seat surface 27 , and the second control valve 34 is pressed onto the fourth sealing seat surface 36 through the second control valve return spring 32 . The area of the upper end of the supercharging piston 5 is larger than the area of the lower end, and a control chamber 4 is formed between the upper end and the valve body 12. The control chamber 4 communicates with the first high and low pressure through holes 29, and a supercharging chamber 8 is formed between the lower end and the valve body 12 and is connected to the oil suction The one-way valve 7 communicates, and the pressurizing chamber 8 communicates with the second high-pressure oil inlet hole 37 through the hydraulic oil channel opened on the valve body 12. A piston chamber 10 is formed between the control piston 11 and the valve body 12, and the piston chamber 10 is connected to the second valve body 12. The two high and low pressure through holes 38 are connected. The control piston 11 is set on the upper part of the valve 15. The control piston 11 opens and closes with the valve 15 and moves synchronously with the valve 15. The spring seat 13 is fixed on the valve 15 through the stop ring and moves together with it. The valve return spring 14 is pressed Between the spring seat 13 and the housing 16 , the valve seat 18 limits the movement lift of the valve 15 .

Figure 1 is a schematic diagram of the overall structure of the dual electromagnetic cooperative control booster gas distribution system of the present invention, including a hydraulic oil rail 1, a hydraulic oil pipe 2, a first electromagnetic control part 3, a control chamber 4, a booster piston 5, and a booster piston reset Spring 6, oil suction check valve 7, boost chamber 8, second electromagnetic control part 9, piston chamber 10, control piston 11, valve body 12, spring seat 13, valve return spring 14, valve 15, casing 16, air vent 17. Valve seat 18, oil return pipe 19, oil tank 20, filter 21 and hydraulic oil pump 22. The left end of the hydraulic oil rail 1 is respectively connected with the hydraulic oil pump 22, the filter 21 and the oil tank 20 through oil pipes. There are multiple hydraulic oil outlets on the hydraulic oil rail 1. The number of hydraulic oil outlets is determined according to the number of cylinders of the internal combustion engine, as shown in the figure As shown in 1, it is a schematic diagram when the present invention is used in a four-cylinder internal combustion engine. The hydraulic oil outlet communicates with the hydraulic oil inlet port provided on the valve body 12 through the hydraulic oil pipe 2, and the low-pressure oil return port provided on the valve body 12 passes through The oil return pipe 19 communicates with the oil tank 20 . The first electromagnetic control part 3 is composed of the first control valve return spring 23, the first coil 24, the first control valve 25, the first sealing seat surface 26, the second sealing seat surface 27, the first high pressure oil inlet hole 28, the first The high and low pressure through hole 29 , the first low pressure oil return hole 30 and the first armature 31 together constitute the first electromagnetic control part 3 of the dual electromagnetic cooperative control booster gas distribution system, as shown in FIG. 2 . The second control valve return spring 32, the second coil 33, the second control valve 34, the third sealing seat surface 35, the fourth sealing seat surface 36, the second high pressure oil inlet hole 37, the second high and low pressure through hole 38, the second The two low-pressure oil return holes 39 and the second armature 40 jointly constitute the second electromagnetic control part 9 of the dual electromagnetic cooperative control booster gas distribution system, as shown in FIG. 3 . The valve body 12 is respectively designed with a first sealing seat surface 26, a second sealing seat surface 27, a first high pressure oil inlet hole 28, a first high and low pressure through hole 29, a first low pressure oil return hole 30, and a third sealing seat surface. 35. The fourth sealing seat surface 36, the second high pressure oil inlet hole 37, the second high and low pressure through hole 38 and the second low pressure oil return hole 39, the first high pressure oil inlet hole 28 passes through the hydraulic oil channel on the valve body 12 and The hydraulic oil inlet is connected, and the first low-pressure oil return hole 30 is connected with the low-pressure oil return channel through the low-pressure oil return channel on the valve body 12. When the first control valve 25 is pressed onto the first sealing seat surface 26, The first high and low pressure through hole 29 communicates with the control chamber 4 and the first high pressure oil inlet hole 28. When the first control valve 25 is pressed onto the second sealing seat surface 27, the first high and low pressure through hole 29 communicates with the control chamber 4 and the first high pressure oil inlet hole 28. The first low-pressure oil return hole 30, when the second control valve 34 is pressed onto the third sealing seat surface 35, the second high-pressure and low-pressure through hole 38 communicates with the piston chamber 10 and the second high-pressure oil inlet hole 37. When the valve 34 is pressed onto the fourth sealing seat surface 36, the second high and low pressure through hole 38 communicates with the piston chamber 10 and the second low pressure oil return hole 39, and the first low pressure oil return hole 30 and the second low pressure oil return hole 39 pass through The hydraulic oil channel opened on the valve body 12 communicates with the low-pressure oil return port, and the first coil 24 and the second coil 33 are connected with the internal combustion engine electronic control unit through electrical connectors, thereby controlling the first control valve 25 and the second control valve 34. Lifting and seating, the first armature 31 and the second armature 40 are respectively fixed on the first control valve 25 and the second control valve 34 through the stop ring, and move together with them, the first control valve 25 passes through the first control valve The return spring 23 is pressed onto the second sealing seat surface 27 , and the second control valve 34 is pressed onto the fourth sealing seat surface 36 through the second control valve return spring 32 . The area of the upper end of the supercharging piston 5 is larger than the area of the lower end, and a control chamber 4 is formed between the upper end and the valve body 12. The control chamber 4 communicates with the first high and low pressure through holes 29, and a supercharging chamber 8 is formed between the lower end and the valve body 12 and is connected to the oil suction The one-way valve 7 communicates, and the pressurizing chamber 8 communicates with the second high-pressure oil inlet hole 37 through the hydraulic oil channel opened on the valve body 12. A piston chamber 10 is formed between the control piston 11 and the valve body 12, and the piston chamber 10 is connected to the second valve body 12. The two high and low pressure through holes 38 are connected. The control piston 11 is set on the upper part of the valve 15. The control piston 11 opens and closes with the valve 15 and moves synchronously with the valve 15. The spring seat 13 is fixed on the valve 15 through the stop ring and moves together with it. The valve return spring 14 is pressed Between the spring seat 13 and the housing 16 , the valve seat 18 limits the movement lift of the valve 15 . As shown in Figure 1, when the present invention is used in a four-cylinder internal combustion engine, the hydraulic oil in the oil tank 20 flows into the filter 21 through the oil pipe, and the filtered hydraulic oil flows into the hydraulic oil pump 22 through the oil pipe, and is pressurized in the hydraulic oil pump 22 When a certain pressure is reached, the pressurized hydraulic oil flowing out from the hydraulic oil pump 22 flows into the hydraulic oil rail 1 through the oil pipe, and is stored in the hydraulic oil rail 1. The pressurized hydraulic oil in the hydraulic oil rail 1 flows through the hydraulic oil pipe 2 and passes through the valve body. The hydraulic oil inlet opened on 12 flows into the hydraulic oil inlet channel in the valve body 12. When the first electromagnetic control part 3 and the second electromagnetic control part 9 of the double electromagnetic cooperative control booster gas distribution system are not energized, the first The control valve return spring 23 presses the first control valve 25 to the second sealing seat surface 27, the second control valve return spring 32 presses the second control valve 34 to the fourth sealing seat surface 36, and the pressurized gas flowing into the valve body 12 The hydraulic oil flows into the annular cavity formed by the first control valve 25, the second sealing seat surface 27 and the valve body 12 through the first high-pressure oil inlet hole 28. Since the first control valve 25 is subjected to the upper and lower hydraulic forces in this cavity, is zero, the first control valve 25 is still pressed to the second sealing seat surface 27 by the first control valve return spring 23, at this time, the first sealing seat surface 26 is opened, and the first high and low pressure through hole 29 communicates with the control chamber 4 and the first low-pressure oil return hole 30, so as to communicate with the control chamber 4 and the oil tank 20 through the oil return pipe 19. The internal hydraulic oil is pressurized, the pressure of the hydraulic oil in the booster chamber 8 is relatively low, the valve 15 is compressed to the valve seat 18 under the spring force of the valve return spring 14, and the vent 17 is not connected to the cylinder; After the first electromagnetic control part 3 and the first coil 24 receive the boost control current from the electronic control unit of the internal combustion engine, the first armature 31 is attracted by the electromagnetic force and moves upward, and at the same time pulls the first control valve 25 Move upward quickly, the first control valve 25 seals the first sealing seat surface 26, the first high and low pressure through hole 29 is disconnected from the first low pressure oil return hole 30, the second sealing seat surface 27 is opened, and the first high and low pressure through hole 29 Connected with the first high-pressure oil inlet hole 28, the pressurized hydraulic oil in the hydraulic oil rail 1 flows through the hydraulic oil pipe 2 and flows into the control chamber 4, and the pressure in the control chamber 4 rises rapidly. Since the area of the upper end of the booster piston 5 is larger than the area of the lower end, The booster piston 5 moves downward and pressurizes the hydraulic oil in the booster chamber 8, and the pressure of the hydraulic oil in the booster chamber 8 increases rapidly. At this time, the second electromagnetic control part 9 and the second coil 33 are not powered, and the second control The valve 34 seals the fourth sealing seat surface 36 so that the pressurized hydraulic oil in the pressurization chamber 8 cannot enter the piston chamber 10. After the pressure of the hydraulic oil in the pressurization chamber 8 is pressurized to a certain value, the second coil 33 is energized. , the second control valve 34 moves upward to seal the third sealing seat surface 35, the fourth sealing seat surface 36 is opened, and the high-pressure hydraulic oil in the booster chamber 8 flows into the second high-pressure oil inlet hole 37 and the second high-low pressure through hole 38. In the piston cavity 10, the pressure in the piston cavity 10 rises rapidly, and the hydraulic pressure on the control piston 11 is greater than the elastic force of the valve return spring 14. The resultant force of the spring force and the internal pressure of the cylinder on the valve 15 controls the downward movement of the piston 11 and the valve 15, the valve 15 leaves the valve seat 18 and opens quickly, the air port 17 is connected with the cylinder, and the gas distribution is opened; When the first electromagnetic control part 3 and the first coil 24 of the pressurized gas distribution system are de-energized again, the electromagnetic force disappears, and the first control valve 25 moves downward under the action of the spring force of the first control valve return spring 23 to seal the second valve again. The sealing seat surface 27, the first high and low pressure through hole 29 is disconnected from the first high pressure oil inlet hole 28, the first sealing seat surface 26 is opened, and the control chamber 4 passes through the first high and low pressure through hole 29 and the first low pressure oil return hole 30 The high-pressure hydraulic oil in the control chamber 4 flows back to the oil tank 20 through the first high-pressure and low-pressure through-hole 29, and the pressure in the control chamber 4 drops rapidly. The booster piston 5 moves upward under the action of oil on the lower end surface of the booster piston 5. At this time, the second electromagnetic control part 9 is powered off, the second control valve 34 seals the fourth sealing seat surface 36, and the third sealing seat surface 35 Open, the hydraulic oil in the piston chamber 10 returns to the oil tank 20 through the second high and low pressure oil return hole 38, and the valve 15 moves upwards and is pressed against the valve seat 18 under the action of the spring force of the valve return spring 14 to close. The upward movement oil suction check valve 7 opens, the pressurization chamber 8 absorbs oil from the oil tank 20 through the oil suction check valve 7, and the pressure of the hydraulic oil in the pressurization chamber 8 returns to the initial value, completing a gas distribution cycle process. As shown in Fig. 1, it is a schematic diagram when the present invention is used in a four-cylinder internal combustion engine, and the first electromagnetic control part 3, the control chamber 4, the booster of the present invention's dual electromagnetic cooperative control supercharged gas distribution system can be flexibly adjusted according to the number of cylinders of the internal combustion engine. Pressure piston 5, boost piston return spring 6, oil suction check valve 7, boost chamber 8, second electromagnetic control part 9, piston chamber 10, control piston 11, valve body 12, spring seat 13, valve return spring 14, The number of valves 15, shells 16, vents 17, valve seats 18, etc. The present invention uses the hydraulic oil rail 1 to significantly reduce the opening and closing instability of the valve 15 caused by the fluctuation of the hydraulic oil pressure caused by the conversion of the high and low pressure oil circuits in the system, thereby ensuring the reliability and consistency of the operation of the gas distribution system; through The displacement of the control valve is controlled by double solenoids to realize the flexible control of the on-off of the high and low pressure oil circuit and the flow rate. The hydraulic oil in the booster chamber is boosted by the booster piston, so that the hydraulic pressure acting on the control piston can be changed flexibly. , the valve 15 is hydraulically driven to open and close, which can realize different gas distribution modes, adjust the gas distribution timing according to different working conditions, and flexibly control the gas distribution duration angle, which significantly improves the control freedom of the valve 15 and can further improve fuel consumption. The economy and emission of internal combustion engines are beneficial to improve the power performance of internal combustion engines.

The dual-electromagnetic coordinated control pressurized gas distribution system of the present invention includes a hydraulic oil rail, a hydraulic oil pipe, a first electromagnetic control part, a control chamber, a booster piston, a return spring of a booster piston, an oil suction check valve, a booster chamber, a second Electromagnetic control part, piston cavity, control piston, valve body, spring seat, valve return spring, valve, casing, vent, valve seat, oil return pipe, oil tank, filter and hydraulic oil pump. The hydraulic oil inlet opened on the valve body communicates with the hydraulic oil rail through the hydraulic oil pipe, and the low-pressure oil return port opened on the valve body communicates with the oil tank through the oil return pipe. The valve body is designed with the first sealing seat surface, the second sealing seat surface, the first high pressure oil inlet hole, the first high and low pressure through hole, the first low pressure oil return hole, the third sealing seat surface, and the fourth sealing seat surface , the second high pressure oil inlet hole, the second high and low pressure through hole and the second low pressure oil return hole. The first low-pressure oil return hole and the second low-pressure oil return hole communicate with the low-pressure oil return port through the hydraulic oil channel opened on the valve body. The area of the upper end of the supercharging piston is larger than that of the lower end. A control chamber is formed between the upper end and the valve body. The control chamber communicates with the first high and low pressure through holes. The cavity communicates with the second high-pressure oil inlet hole through the hydraulic oil channel opened on the valve body, and forms a piston cavity between the control piston and the valve body, and the piston cavity communicates with the second high-pressure and low-pressure through hole. The control piston is arranged on the upper part of the valve, the spring seat is fixed on the valve through the stop ring, and the valve return spring is compressed between the spring seat and the shell.

The first electromagnetic control part includes the return spring of the first control valve, the first coil, the first control valve, the first sealing seat surface, the second sealing seat surface, the first high pressure oil inlet hole, the first high and low pressure through hole, the first Low pressure return port and first armature. The first high-pressure oil inlet hole communicates with the hydraulic oil inlet through the hydraulic oil channel on the valve body, and the first low-pressure oil return hole communicates with the low-pressure oil return port through the low-pressure oil return channel on the valve body. When pressed onto the first sealing seat surface, the first high and low pressure through holes connect the control chamber and the first high pressure oil inlet hole; when the first control valve is pressed onto the second sealing seat surface, the first high and low pressure through holes It communicates with the control chamber and the first low-pressure oil return hole.

The second electromagnetic control part includes the return spring of the second control valve, the second coil, the second control valve, the third sealing seat surface, the fourth sealing seat surface, the second high pressure oil inlet hole, the second high and low pressure through hole, the second Low pressure oil return hole and second armature. When the second control valve is pressed onto the third sealing seat surface, the second high and low pressure through hole communicates with the piston cavity and the second high pressure oil inlet hole; when the second control valve is pressed onto the fourth sealing seat surface, the first The second high and low pressure through hole communicates with the piston cavity and the second low pressure oil return hole.

The first electromagnetic control part, control cavity, booster piston, booster piston return spring, oil suction check valve, booster cavity, second electromagnetic control part, piston cavity, control piston, valve body, spring seat, valve return spring, The number of valves, housings, vents and valve seats is the same as the number of internal combustion engine cylinders.

Claims (3)

1. pair electromagnetism Collaborative Control booster-type air distribution system, it is characterized in that：It is described to match somebody with somebody including distribution unit, hydraulic oil rail, fuel tank Gas unit includes valve body, the first Electromagnetic Control part, the second Electromagnetic Control part, charged piston, control piston, valve；

The first Electromagnetic Control part includes the first electromagnetic valve body, the first control valve, the first electromagnetic valve body and the first control valve It is respectively positioned in valve body, the first electromagnetic valve body includes the first valve body, first coil, the first armature, and first coil is wrapped in first In valve body, the first armature is located at below the first valve body, and the first control valve is connected with the first armature, and the upper end of the first control valve connects The first control valve resetting spring is connect, the end of the first control valve resetting spring is withstood in the first valve body, the middle part of the first control valve First projection portion is set, and the width of the first projection portion is wider than the width of adjoining part above and below it, the first projection portion place Valve body portion the first projection portion chamber is set, adjoining part and valve body form the first oil return above the first projection portion Chamber, the adjoining part in the first projection portion lower section and valve body form the first oil suction chamber, the upper and lower end face difference of the first projection portion With valve mates, with being the first sealed seat surface at the first projection portion upper surface cooperation in valve body, in valve body with it is convex Rise at the cooperation of part lower face is the second sealed seat surface；

Charged piston is arranged in valve body and positioned at the lower section of the first Electromagnetic Control part, charged piston and the valve above it It forms control chamber between body, booster cavity is formed between charged piston and valve body below；

Second Electromagnetic Control part is located at below booster cavity, and the second Electromagnetic Control part includes second solenoid valve body, second Control valve, second solenoid valve body and the second control valve are respectively positioned in valve body, and second solenoid valve body includes the second valve body, the second line Circle, the second armature, the second coil is wrapped in the second valve body, and the second armature is located at the second valve body lower section, the second control valve and the Two armature are connected, and the upper end of the second control valve connects the second control valve resetting spring, the end of the second control valve resetting spring It withstands in the second valve body, the middle part of the second control valve sets the second projection portion, and the width of the second projection portion is wider than above and below it The width of adjoining part, the valve body portion where the second projection portion set the second projection portion chamber, the second projection portion The adjoining part in top and valve body form the second oil back chamber, below the second projection portion adjoining part and valve body formed second into Oil pocket, the upper and lower end face of the second projection portion with valve mates, are matched somebody with somebody in valve body respectively with the second projection portion upper surface It is the 3rd sealed seat surface at conjunction, with being the 4th sealed seat surface at the second projection portion lower face cooperation in valve body；

Control piston is arranged in valve body and positioned at the lower section of the second Electromagnetic Control part, controls piston and the second Electromagnetic Control Plunger shaft is formed between part；

Oil return manifold, the first high pressure fuel feed hole, the second high pressure fuel feed hole, the first low pressure oil return hole, are set respectively in valve body Two low pressure oil return holes, the first high-low pressure through hole, the second high-low pressure through hole, oil return manifold connection fuel tanks, the first high pressure fuel feed hole point Not Lian Tong hydraulic oil rail and the first oil suction chamber, the first low pressure oil return hole is respectively communicated with oil return manifold and the first oil back chamber, and first is high Low pressure through hole is respectively communicated with the first projection portion chamber and control chamber, and the second high pressure air intake hole is respectively communicated with the second oil suction chamber and increasing Chamber is pressed, the second low pressure oil return hole is respectively communicated with the second oil back chamber and fuel tank, and the second high-low pressure through hole is respectively communicated with the second lug boss Sub-chamber and plunger shaft, control piston lower section connect valve, and valve return springs, valve end installation valve are cased on valve Seat, shell are mounted below valve body, and valve seating is located at outer side；The quantity of the distribution unit and engine cylinder Quantity is consistent.

2. double electromagnetism Collaborative Control booster-type air distribution systems according to claim 1, it is characterized in that：Booster cavity passes through oil suction Pipeline connection oil return manifold installs oil sucting one-way valve on inlet line.

3. double electromagnetism Collaborative Control booster-type air distribution systems according to claim 1 or 2, it is characterized in that：The supercharging is lived The upper surface area of plug is more than its lower face area.