High-coaxiality supercharger air inlet backflow structure easy to assemble

Abstract

The invention discloses an easy-to-assemble high-coaxiality supercharger air inlet backflow structure, and relates to the technical field of superchargers, the easy-to-assemble high-coaxiality supercharger air inlet backflow structure comprises a box body, an air-liquid transition mechanism and a variable pressurization mechanism, the box body comprises an air suction cavity and an air return cavity, and a mounting cavity is formed between the air suction cavity and the air return cavity; wherein the air suction chamber is provided with an air suction pipe and is connected with an air inlet of the supercharger through the air suction pipe, and the air return chamber is provided with an air return pipe; the gas-liquid transition mechanism comprises a gas distribution disc which is rotationally arranged in the mounting cavity and is used for transferring hydraulic gas in the gas return cavity into the gas suction cavity; the variable pressurizing mechanism is arranged in the mounting cavity and used for pressurizing the air suction cavity and synchronously driving the air distribution disc to rotate. By arranging the variable pressurizing mechanism, air in the air return cavity is sucked into the air suction cavity, so that the pressure of the air suction cavity is increased to meet the minimum inlet pressure of the supercharger, the cavitation phenomenon of the supercharger can be reduced, and the stability and reliability of the supercharger are kept.

Description

Technical Field

[0001] The invention relates to the technical field of superchargers, in particular to a high-coaxiality supercharger intake reflow structure that is easy to assemble. Background Art

[0002] Turbocharging technology is widely used in the automotive field. The turbocharger uses the heat, kinetic energy, pressure energy and other energies in the exhaust gas discharged when the engine is working to drive the turbine in the turbine box. The turbine in turn drives the coaxial impeller to form a rotor assembly. The impeller compresses the air sent from the air filter pipe, pressurizes it and enters the engine combustion chamber to achieve the purpose of turbocharging.

[0003] In order to avoid cavitation at the air inlet during the operation of the supercharger, the minimum inlet pressure at the air inlet must be ensured to be large, and the minimum inlet pressure of the main pump will increase with the increase of speed and displacement. However, the inlet pressure of the main pump in actual operation is far from meeting the minimum inlet pressure requirement of the supercharger. The negative pressure generated at the air inlet is the main cause of cavitation damage to the main pump. In order to increase the suction pressure at the air inlet of the main pump during the design process of the equipment, the conventional solution is to raise the design position of the supercharger and use the height difference to increase the suction pressure. However, the pressure value increased by this method is limited and it is difficult to meet the pressure requirements under high load. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the inlet pressure of the main pump in actual work cannot meet the requirement of the minimum inlet pressure of the supercharger, and to propose an easy-to-assemble high-coaxiality supercharger intake return structure.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An easily assembled high coaxiality supercharger intake reflow structure comprises a housing, a gas-liquid transition mechanism and a variable pressurization mechanism, wherein: The box body comprises an air intake chamber and an air return chamber, wherein an installation chamber is formed between the air intake chamber and the air return chamber, wherein an air intake pipe is arranged on the air intake chamber and connected to an air inlet of the supercharger through the air intake pipe, and an air return pipe is arranged on the air return chamber; The gas-liquid transition mechanism includes a gas distribution plate rotatably arranged in the installation cavity for transferring the hydraulic gas in the return gas chamber to the suction gas chamber; The variable pressurizing mechanism is arranged in the installation cavity and is used for pressurizing the air suction chamber and synchronously driving the air distribution disk to rotate.

[0006] Preferably, the air distribution plate is sealed and fitted with the bottom surface of the return air chamber and the top surface of the intake chamber respectively, and a plurality of air distribution cavities are arranged through the air distribution plate, and the bottom surface of the return air chamber and the top surface of the intake chamber are respectively provided with a plurality of air inlets and air outlets corresponding to the air distribution cavities.

[0007] Preferably, the air inlet and the air outlet are staggered, and the circumferential interval between adjacent air inlets and air outlets is greater than the diameter of the air dividing cavity.

[0008] Preferably, the variable pressurizing mechanism includes an air cylinder axially slidingly arranged in the installation cavity, a sealing plate is sealingly and slidingly arranged in the air cylinder, a motor is fixedly installed on the top of the box body, an output shaft is fixedly arranged on the output end of the motor, the output shaft seal passes through the return air chamber and a driving plate is fixed at the end, two guide rods fixedly connected to the sealing plate are arranged at the bottom of the driving plate, the guide rods are slidably connected to the top of the air cylinder, an air inlet pipe connected to the return air chamber is arranged on the sealing plate, an exhaust pipe connected to the suction chamber is arranged at the bottom of the air cylinder, and a driving structure for driving the air cylinder to reciprocate is also arranged in the installation cavity.

[0009] Preferably, a plurality of evenly distributed guide grooves are axially provided on the inner wall of the gas distribution plate, and a guide strip matching the guide grooves is provided on the outer wall of the air pressure cylinder.

[0010] Preferably, the air intake pipe is coaxially rotatably connected to the output shaft, the output shaft is hollow, and the output shaft is located at the top of the return air chamber and is opened at the air intake. Both the air intake pipe and the exhaust pipe are connected to a one-way valve through a flexible joint.

[0011] Preferably, the driving structure includes a support rod fixedly arranged in the installation cavity, a driving disk is rotatably arranged on the support rod, a connecting ring with an arc-shaped groove in the middle is arranged on the driving disk, a push rod is rotatably arranged at the bottom edge of the pneumatic cylinder, a connecting ball matched with the arc-shaped groove in the connecting ring is arranged on the end of the push rod, the pneumatic cylinder rotates to make the connecting ball move in the connecting ring, a hydraulic strut rod for controlling the inclination angle of the driving disk is arranged under the driving disk, and when the inclination angle of the driving disk becomes larger, the axial reciprocating stroke of the pneumatic cylinder becomes larger when the pneumatic cylinder rotates.

[0012] Preferably, the hydraulic strut is connected to the air outlet pipe of the supercharger through a conduit, a pressure column is fixedly provided at the telescopic end of the hydraulic strut, a pressure plate with a notch is radially provided below the driving disk, and the pressure column abuts against the inner wall of the notch.

[0013] Preferably, a spring is provided between the lower portion of the driving disc and the mounting cavity, and the position of the spring corresponds to the position of the hydraulic support rod.

[0014] Preferably, the side walls of the air intake chamber and the air return chamber are both provided with air respirators.

[0015] Compared with the prior art, the present invention has the following advantages: 1. By setting a variable pressurization mechanism, the air in the return air chamber is pumped into the intake chamber, so that the pressure of the intake chamber increases to meet the minimum inlet pressure of the supercharger, which can reduce the cavitation phenomenon of the supercharger, maintain the stability and reliability of the supercharger, and extend the service life of the system.

[0016] 2. During the operation of the supercharger, air or bubbles will be mixed into the gas and liquid, and the air pressure in the return air chamber will be pumped into the suction chamber, which will reduce the air pressure in the return air chamber. This can promote the rapid precipitation of bubbles to form large bubbles and then float up and overflow, reducing the compression rate of the gas and liquid, improving the control accuracy of the system, and effectively reducing the impact of bubbles on system performance.

[0017] 3. The variable pressurization mechanism can adaptively adjust the stroke of the air cylinder according to the load conditions. When the load increases, the stroke of the air cylinder becomes larger, which speeds up the efficiency of air pressure pressurization and ensures that the inlet pressure of the supercharger meets the requirements. When the load is low, the pressure increment is reduced to avoid excessive pressure in the suction chamber, ensure the normal operation of the system, and reduce the risk of supercharger leakage caused by long-term high pressure leading to seal failure or air leakage at the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the internal structure of the high coaxiality supercharger intake reflow structure that is easy to assemble proposed by the present invention; Figure 2 This is a schematic diagram of the appearance structure of the easy-to-assemble high-coaxiality supercharger intake reflow structure proposed by the present invention; Figure 3 A schematic diagram of the structure of the return air chamber in the high coaxiality supercharger intake return structure that is easy to assemble proposed by the present invention; Figure 4 A schematic diagram of the structure of the air intake chamber in the high coaxiality supercharger air intake reflow structure that is easy to assemble proposed by the present invention; Figure 5 A schematic diagram of the structure of the gas distributor in the high coaxiality supercharger intake reflow structure that is easy to assemble proposed by the present invention; Figure 6 A schematic structural diagram of a sealing plate in a high coaxiality supercharger intake reflow structure that is easy to assemble proposed by the present invention; Figure 7 A schematic diagram of the structure of the air pressure cylinder in the high coaxiality supercharger intake reflow structure that is easy to assemble proposed by the present invention; Figure 8 A schematic diagram of the structure of a push rod in a high coaxiality supercharger intake reflow structure that is easy to assemble proposed by the present invention; Fig. 9 A schematic diagram of the structure of the easy-to-assemble high-coaxiality supercharger intake reflow structure in a low-load operating state proposed by the present invention; Fig.10 A schematic diagram of the structure of the easy-to-assemble high-coaxiality supercharger intake reflow structure in high-load operation state proposed by the present invention; Fig.11 for Fig.10 Enlarged view of part A.

[0019] In the figure: 1. box body; 11. air intake chamber; 111. air intake pipe; 112. air outlet; 12. air return chamber; 121. air return pipe; 122. air inlet; 13. installation cavity; 2. gas-liquid transition mechanism; 21. air distribution plate; 211. air distribution cavity; 212. guide groove; 3. variable pressurization mechanism; 31. air pressure cylinder; 311. guide strip; 312. push rod; 313. connecting ball; 32. sealing plate; 33. guide rod; 34. air intake pipe; 35. exhaust pipe; 36. drive plate; 361. connecting ring; 362. pressure plate; 37. hydraulic support rod; 371. pressure column; 38. spring; 4. supercharger; 5. motor; 51. drive plate; 52. output shaft; 6. air respirator. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Reference Figure 1-4 , an easy-to-assemble high-coaxiality supercharger intake reflow structure, the active supercharging hydraulic supercharger is used in the supercharger on the tractor, including a box body 1, a gas-liquid transition mechanism 2 and a variable pressurizing mechanism 3, the gas-liquid transition mechanism 2 and the variable pressurizing mechanism 3 are both arranged in the box body 1, and the pressure and flow direction of the hydraulic gas stored in the box body 1 are controlled.

[0022] Reference Figure 1-5 The housing 1 includes an air intake chamber 11 and an air return chamber 12, and an installation chamber 13 is formed between the air intake chamber 11 and the air return chamber 12. The hydraulic gas transfer between the air intake chamber 11 and the air return chamber 12 is realized by a gas-liquid transition mechanism 2, so that when the hydraulic gas is transferred from the air return chamber 12 to the air intake chamber 11, the internal pressure of the air return chamber 12 and the air intake chamber 11 remains unchanged, wherein the air intake chamber 11 is provided with an air intake pipe 111 and connected to the air inlet of the supercharger 4 through the air intake pipe 111, and the air return chamber 12 is provided with a return air pipe 1 21. The hydraulic gas is sucked out from the intake chamber 11 through the supercharger 4. In order to avoid cavitation at the air inlet, it is necessary to ensure that the minimum inlet pressure at the air inlet meets the air intake demand, and the minimum inlet pressure of the supercharger 4 will increase with the increase of the speed and displacement. Therefore, after the load of the supercharger is increased, the intake chamber 11 is pressurized through the variable pressurizing mechanism 3, and then through the control valve, the actuator realizes the functional action of the machine, and finally flows back to the return air chamber 12 through the return air pipe 121, and then transferred into the intake chamber 11.

[0023] Reference Figure 1-3 The side walls of the air inlet chamber 11 and the air return chamber 12 are both provided with air respirators 6, which are prior art and are used to adjust the pressures in the air return chamber 12 and the air inlet chamber 11 so that the air return chamber 12 and the air inlet chamber 11 are maintained within a preset range.

[0024] The gas-liquid transition mechanism 2 includes a gas distributor 21 rotatably arranged in the installation cavity 13 for transferring the hydraulic gas in the return air chamber 12 to the suction chamber 11. The hydraulic gas flowing from the return air chamber 12 to the suction chamber 11 is transitioned through the gas distributor 21, so that the return air chamber 12 and the suction chamber 11 can always be kept separated. When there is a large pressure difference between the return air chamber 12 and the suction chamber 11, the return air chamber 12 and the suction chamber 11 continue to return air while maintaining the relative pressure difference unchanged.

[0025] Reference Figure 1-4 The air distribution plate 21 is sealed with the bottom surface of the return air chamber 12 and the top surface of the suction chamber 11 respectively. A plurality of air distribution cavities 211 are arranged through the air distribution plate 21. The bottom surface of the return air chamber 12 and the top surface of the suction chamber 11 are respectively provided with a plurality of air inlets 122 and air outlets 112 corresponding to the air distribution cavities 211. The air distribution plate 21 is driven to rotate. When the air distribution cavity 211 corresponds to the air inlet 122, the hydraulic gas flows from the return air chamber 12 into the air distribution cavity 211. As the air distribution plate 21 continues to rotate, the air distribution cavity 211 containing the hydraulic gas moves to the air outlet 11. 2, so that the hydraulic gas flows into the suction chamber 11, the air inlet 122 and the air outlet 112 are staggered, and the circumferential interval between the adjacent air inlet 122 and the air outlet 112 is greater than the diameter of the air dividing chamber 21, so that when the air dividing chamber 211 rotates with the air dividing disk 21, it will not correspond to the air inlet 122 and the air outlet 112 at the same time. When the air dividing chamber 211 corresponds to one of the air inlet 122 and the air outlet 112, it must be in a staggered state with the other one, ensuring that the air pressure in the suction chamber 11 and the return air chamber 12 will not leak when the air dividing chamber 211 diverts the hydraulic gas.

[0026] The variable pressurizing mechanism 3 is arranged in the installation cavity 13, and is used to pressurize the intake chamber 11 and synchronously drive the air distribution plate 21 to rotate. The variable pressurizing mechanism 3 can adaptively control the pressure in the intake chamber 11 according to the load condition of the supercharger 4 to ensure that the inlet pressure of the air inlet is adapted to the load power of the supercharger 4.

[0027] Reference Figure 1 and 6-11, the variable pressurizing mechanism 3 includes an air cylinder 31 axially slidably arranged in the installation cavity 13, a sealing plate 32 is sealingly and slidably arranged in the air cylinder 31, and the sealing plate 32 is surrounded by the air cylinder 31 to form a sealed space below. When the air cylinder 31 and the sealing plate 32 are relatively displaced, the pressure in the sealed space changes. A motor 5 is fixedly installed on the top of the box body 1, and an output shaft 52 is fixedly arranged on the output end of the motor 5. The output shaft 52 seals and penetrates the return air chamber 12 and a driving plate 51 is fixed at the end. After the motor 5 is started, the output shaft 52 is driven to rotate, which drives the driving plate 51 to rotate. Two guide rods 33 fixedly connected to the sealing plate 32 are arranged at the bottom of the driving plate 51. Under the action of the two guide rods 33, the rotation of the driving plate 51 will simultaneously drive the sealing plate 32 and the air cylinder 31 to rotate. The guide rods 33 are slidably connected to the top of the air cylinder 31, so that the air cylinder 31 can be moved. The axial sliding and relative displacement with the sealing plate 32 cause pressure changes in the sealed space. The sealing plate 32 is provided with an intake pipe 34 connected to the return air chamber 12, and the bottom of the air cylinder 31 is provided with an exhaust pipe 35 connected to the suction chamber 11. A driving structure for driving the air cylinder 31 to reciprocate is also provided in the mounting cavity 13. Under the action of the driving structure, the air cylinder 31 reciprocates. When the air cylinder 31 moves downward, the volume of the sealed space below the sealing plate 32 increases, the air pressure decreases, and the gas in the return air chamber 12 is drawn in through the intake pipe 34. When the air cylinder 31 moves upward, the volume of the sealed space below the sealing plate 32 decreases, the air pressure increases, and the gas is discharged into the suction chamber 11 through the exhaust pipe 35, thereby increasing the inlet pressure of the air inlet. As the air cylinder 31 reciprocates axially, the exhaust and suction are repeated to continuously draw the air in the return air chamber 12 into the suction chamber 11.

[0028] It should be noted that both the intake pipe 34 and the exhaust pipe 35 are connected with a one-way valve through a flexible joint. The connection positions of the intake pipe 34 and the exhaust pipe 35 with the sealing plate 32 and the air cylinder 31 can rotate freely under the action of the movable head to avoid the movement interference between the intake pipe 34 and other structures when the air cylinder 31 rotates. The one-way valve on the intake pipe 34 only allows gas to enter the sealed space from the return air chamber 12, and the one-way valve on the exhaust pipe 35 only allows gas to enter the suction chamber 11 from the sealed space. The intake pipe 34 is coaxially rotatably connected with the output shaft 52. The output shaft 52 is hollow and is located in the return air chamber 12. The position of the inner top is opened at the air inlet. When intake, gas is directly transported from the output shaft 52 through the air inlet, and the air in the return air chamber 12 is sucked into the intake chamber 11, so that the pressure of the intake chamber 11 increases to meet the minimum inlet pressure of the supercharger 4, which can reduce the cavitation phenomenon of the supercharger 4, maintain the stability and reliability of the supercharger, and extend the service life of the system. At the same time, the air pressure in the return air chamber 12 is reduced, which can promote the rapid precipitation of bubbles in the intake return hydraulic gas to form large bubbles and then float up and overflow, thereby reducing the compression rate of gas and liquid, improving the control accuracy of the system, and effectively reducing the influence of bubbles on system performance.

[0029] Reference Figure 1-5 A plurality of evenly distributed guide grooves 212 are axially provided on the inner wall of the air distribution disk 21, and a guide strip 311 matched with the guide groove 212 is provided on the outer wall of the air pressure cylinder 31. When the air pressure cylinder 31 rotates, the guide groove 212 and the guide strip 311 cooperate to drive the air distribution disk 21 to rotate circumferentially, and when the air pressure cylinder 31 moves axially, the guide strip 311 and the guide groove 212 always maintain a coordinated state, so when the air pressure cylinder 31 moves, the air distribution disk 21 can always be driven.

[0030] Reference Figure 1 and 6-11, the driving structure includes a support rod fixedly arranged in the installation cavity 13, a driving disk 36 is rotatably arranged on the support rod, the driving disk 36 can be rotated to achieve tilting, a connecting ring 361 with an arc-shaped groove in the middle is arranged on the driving disk 36, a push rod 312 is rotatably arranged at the bottom edge of the air cylinder 31, the rotation plane of the push rod 312 is located on the radial cross section of the air cylinder 31, and a connecting ball 313 adapted to the arc-shaped groove in the connecting ring 361 is arranged at the end of the push rod 312. The air cylinder 31 rotates to make the connecting ball 313 move in the connecting ring 361. When the driving disk 36 is in a horizontal state, when the motor 5 drives the air cylinder 31 to rotate, the moving path of the connecting ball 313 is located in the same horizontal plane, so the air cylinder 3 There is no position change in the longitudinal height. When the driving disk 36 is tilted, the various positions of the connecting ring 361 are not at the same height. Therefore, when the connecting ball 313 moves along the contour of the connecting ring 361, it will pull the air cylinder 31 to move. Since the driving disk 36 is in a tilted state, under the action of the push rod 312, the air cylinder 31 will perform axial displacement to offset the height difference caused by the tilt of the driving disk 36, thereby realizing the axial reciprocating movement of the air cylinder 31. A hydraulic support rod 37 for controlling the tilt angle of the driving disk 36 is arranged below the driving disk 36. After the tilt angle of the driving disk 36 becomes larger, the axial reciprocating stroke of the air cylinder 31 becomes larger when the air cylinder 31 rotates. The larger the reciprocating stroke of the air cylinder 31, the higher the efficiency of pumping and releasing air.

[0031] Reference Figure 1 and 6 -11, the hydraulic support rod 37 is connected to the air outlet pipe of the supercharger 4 through a conduit, and the air outlet pipe of the supercharger 4 is connected to the hydraulic support rod 37. According to Pascal's law, the pressure inside the air outlet pipe of the supercharger 4 and the hydraulic support rod 37 are consistent. Therefore, when the load of the entire supercharger is increased, the pressure inside the air outlet pipe and the hydraulic support rod 37 needs to be increased to adapt to the corresponding load requirements. As the speed and displacement of the supercharger 4 increase, the corresponding minimum inlet pressure of the supercharger 4 will also increase. At this time, the hydraulic support rod 37 extends outward under high pressure, and the telescopic end of the hydraulic support rod 37 is fixedly set. There is a pressure column 371, and a pressure plate 362 with a slot is radially arranged below the driving disk 36. The pressure column 371 is against the inner wall of the slot. The hydraulic strut 37 is extended to push the end of the driving disk 36 upward through the pressure column 371 to increase the inclination angle, and remains stable under the cooperation of the slot, so that the pressurization efficiency of the air pressure cylinder 31 is improved, and the pressure in the suction chamber 11 is increased to meet the suction pressure requirement of the supercharger 4, prevent the occurrence of cavitation, and realize the adaptive adjustment of the stroke of the air pressure cylinder 31 according to the load conditions to cooperate with the change of the pressure in the suction chamber 11.

[0032] Reference Figure 1 and 6-11, a spring 38 is arranged between the bottom of the driving disc 36 and the mounting cavity 13, and the position of the spring 38 corresponds to that of the hydraulic strut 37. The spring 38 is used to offset the thrust of the hydraulic strut 37 under normal conditions, so as to ensure that when operating at low load, the driving disc 36 can maintain a small inclination angle, adapt to the flow rate of the suction air, keep the partial pressure in the suction chamber 11 stable, avoid excessive pressure in the suction chamber 11, ensure the normal operation of the system, and reduce the risk of leakage of the supercharger caused by failure of the seal or leakage at the pipe connection due to long-term high pressure.

[0033] The specific working principle of the present invention is as follows: When in use, hydraulic gas is injected into the suction chamber 11, and the hydraulic gas is sucked out of the suction chamber 11 through the booster 4, and then passes through the control valve to reach the actuator to realize the functional action of the machine, and finally flows back to the return chamber 12 through the return pipe 121, and finally transferred into the suction chamber 11, forming a cycle; During operation, the motor 5 is started. After the motor 5 is started, the output shaft 52 is driven to rotate, which drives the driving plate 51 to rotate. Under the action of the two guide rods 33, the driving plate 51 rotates, which simultaneously drives the sealing plate 32 and the air cylinder 31 to rotate. The air cylinder 31 rotates to move the connecting ball 313 in the connecting ring 361. When the connecting ball 313 moves along the contour of the connecting ring 361, it pulls the air cylinder 31 to move. Under the action of the push rod 312, the air cylinder 31 will perform axial displacement to offset the height difference caused by the inclination of the driving disk 36, thereby achieving the driving of the air cylinder 31. The pressure cylinder 31 reciprocates axially, and the air cylinder 31 reciprocates. When the air cylinder 31 moves down, the volume of the sealed space below the sealing plate 32 increases, the air pressure decreases, and the gas in the return air chamber 12 is sucked into the air intake pipe 34. When the air cylinder 31 moves up, the volume of the sealed space below the sealing plate 32 decreases, the air pressure increases, and the gas is discharged into the suction chamber 11 through the exhaust pipe 35, thereby increasing the inlet pressure of the air inlet. As the air cylinder 31 reciprocates axially, the air intake and exhaust are repeated, and the air in the return air chamber 12 is continuously pumped into the suction chamber 11. When the load is low, the spring 38 is used to offset the thrust of the hydraulic support rod 37 under normal conditions, ensuring that the drive plate 36 can maintain a small tilt angle when the load is low. At this time, the reciprocating stroke of the air cylinder 31 is small, the exhaust efficiency is low, and the flow rate of the air intake is adapted to keep the partial pressure in the air intake chamber 11 stable, avoid excessive pressure in the air intake chamber 11, and ensure the normal operation of the system; After the load is increased, the internal pressure of the air outlet pipe and the hydraulic support rod 37 needs to increase to adapt to the corresponding load requirements. As the speed and displacement of the supercharger 4 increase, the corresponding minimum inlet pressure of the supercharger 4 will also increase. At this time, the hydraulic support rod 37 extends outward under high pressure. The extension of the hydraulic support rod 37 pushes the end of the driving disk 36 upward through the pressure column 371 to increase the inclination angle, and remains stable under the cooperation of the notch. At this time, the reciprocating stroke of the air cylinder 31 is large, and the exhaust efficiency is high, which makes the pressurization efficiency of the air cylinder 31 higher, so that the pressure in the suction chamber 11 increases, meets the suction pressure requirement of the supercharger 4, and prevents the occurrence of cavitation.

[0034] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An easily assembled high coaxiality supercharger intake reflow structure, comprising a housing (1), a gas-liquid transition mechanism (2) and a variable pressurization mechanism (3), characterized in that: in: The housing (1) comprises an air intake chamber (11) and an air return chamber (12), wherein an installation chamber (13) is formed between the air intake chamber (11) and the air return chamber (12), wherein an air intake pipe (111) is provided on the air intake chamber (111) and is connected to an air inlet of a supercharger (4) via the air intake pipe (111), and the air return chamber (12) is provided with an air return pipe (121); The gas-liquid transition mechanism (2) comprises a gas distribution plate (21) rotatably arranged in the mounting cavity (13) and used for transferring the hydraulic gas in the return gas chamber (12) to the suction gas chamber (11); The variable pressurizing mechanism (3) is arranged in the installation cavity (13) and is used to pressurize the air suction chamber (11) and synchronously drive the air distribution disk (21) to rotate.

2. The high coaxiality supercharger intake reflow structure that is easy to assemble according to claim 1 is characterized in that: The gas distribution plate (21) is respectively sealed with the bottom surface of the return air chamber (12) and the top surface of the intake chamber (11); a plurality of gas distribution cavities (211) are provided through the gas distribution plate (21); and a plurality of gas inlets (122) and gas outlets (112) corresponding to the gas distribution cavities (211) are respectively provided on the bottom surface of the return air chamber (12) and the top surface of the intake chamber (11).

3. The high coaxiality supercharger intake reflow structure that is easy to assemble according to claim 2 is characterized in that: The air inlets (122) and the air outlets (112) are arranged in a staggered manner, and the circumferential spacing between adjacent air inlets (122) and air outlets (112) is greater than the diameter of the air dividing cavity (211).

4. The high coaxiality supercharger intake reflow structure that is easy to assemble according to claim 1 is characterized in that: The variable pressurizing mechanism (3) comprises an air cylinder (31) axially slidably arranged in the installation cavity (13), a sealing plate (32) sealingly and slidably arranged in the air cylinder (31), a motor (5) fixedly mounted on the top of the housing (1), an output shaft (52) fixedly arranged at the output end of the motor (5), the output shaft (52) sealingly passes through the return air chamber (12) and a driving plate (51) is fixed at the end, two guide rods (33) fixedly connected to the sealing plate (32) are arranged at the bottom of the driving plate (51), the guide rods (33) are slidably connected to the top of the air cylinder (31), an air intake pipe (34) connected to the return air chamber (12) is arranged on the sealing plate (32), an exhaust pipe (35) connected to the suction chamber (11) is arranged at the bottom of the air cylinder (31), and a driving structure for driving the air cylinder (31) to reciprocate is also arranged in the installation cavity (13).

5. The easy-to-assemble high-coaxiality supercharger intake reflow structure according to claim 4 is characterized in that: The inner wall of the gas distribution plate (21) is axially provided with a plurality of evenly distributed guide grooves (212), and the outer wall of the air pressure cylinder (31) is provided with guide strips (311) adapted to the guide grooves (212).

6. The easy-to-assemble high-coaxiality supercharger intake reflow structure according to claim 4, characterized in that: The air intake pipe (34) is coaxially rotatably connected to the output shaft (52); the output shaft (52) is hollow and is located at the top of the return air chamber (12) and is opened at the air intake port; both the air intake pipe (34) and the exhaust pipe (35) are connected to a one-way valve via a flexible joint.

7. The easy-to-assemble high-coaxiality supercharger intake reflow structure according to claim 4, characterized in that: The driving structure comprises a support rod fixedly arranged in the installation cavity (13), a driving disk (36) being rotatably arranged on the support rod, a connecting ring (361) having an arc-shaped groove in the middle being arranged on the driving disk (36), a push rod (312) being rotatably arranged at the bottom edge of the air cylinder (31), a connecting ball (313) being matched with the arc-shaped groove in the connecting ring (361) being arranged at the end of the push rod (312), the connecting ball (313) being moved in the connecting ring (361) when the air cylinder (31) is rotated, a hydraulic support rod (37) for controlling the inclination angle of the driving disk (36) is arranged below the driving disk (36), and when the inclination angle of the driving disk (36) increases, the axial reciprocating stroke of the air cylinder (31) increases when the air cylinder (31) rotates.

8. The high coaxiality supercharger intake air recirculation structure that is easy to assemble according to claim 7 is characterized in that: The hydraulic support rod (37) is connected to the air outlet pipe of the supercharger (4) via a conduit; a pressure column (371) is fixedly provided at the telescopic end of the hydraulic support rod (37); a pressure plate (362) having a notch is radially provided below the driving disc (36); and the pressure column (371) abuts against the inner wall of the notch.

9. The high coaxiality supercharger intake reflow structure that is easy to assemble according to claim 8, characterized in that: A spring (38) is provided between the lower portion of the driving plate (36) and the mounting cavity (13), and the position of the spring (38) corresponds to that of the hydraulic support rod (37).

10. The easy-to-assemble high-coaxiality supercharger intake reflow structure according to claim 1, characterized in that: The side walls of the air intake chamber (11) and the air return chamber (12) are both provided with air respirators (6).

Images