Oil pressure regulating structure and supercharger

Abstract

The present invention discloses an oil pressure regulating structure and a supercharger. When the oil pressure entering a first sub-flow channel exceeds the elastic restoring force provided by an elastic member, the oil pushes a piston toward a third sub-flow channel, driving a valve plate toward a liquid outlet. This reduces the gap between the valve plate and the liquid outlet, thereby reducing the oil flow rate at the liquid outlet and, in turn, the pressure of the oil flowing out of the liquid outlet. Therefore, by installing the oil pressure regulating structure provided by this application within a supercharger, the oil pressure entering the supercharger can be effectively regulated, preventing oil leakage from the supercharger's shaft core due to excessive oil pressure, reducing oil consumption, and preventing oil pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of engine oil pressure regulation, and in particular to an engine oil pressure regulation structure and a supercharger. Background Art

[0002] A supercharger is a technology that pre-compresses air before it enters the engine cylinder to increase air density and intake volume.

[0003] However, when the engine is cold, the oil temperature is low and the oil pressure in the main oil channel is high, which increases the oil inlet pressure of the supercharger, and easily causes the oil to leak from the shaft core of the supercharger. Therefore, there is an urgent need for an oil pressure regulating structure that can reduce the oil pressure and ensure that the oil does not leak from the shaft core when the oil pressure is too high. Summary of the Invention

[0004] In view of this, an embodiment of the present invention provides an oil pressure regulating structure and a supercharger to solve the problem of oil leakage from the shaft core due to high oil pressure in existing superchargers.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A first aspect of the present invention discloses an oil pressure regulating structure, comprising: a valve body, a piston, a connecting rod, an elastic member, an end cover and a valve plate;

[0007] The valve body is provided with a flow channel and a piston cavity;

[0008] The flow channel includes a first sub-flow channel, a second sub-flow channel and a third sub-flow channel. The first sub-flow channel and the third sub-flow channel are both opened in the vertical direction of the valve body. The liquid inlet end of the third sub-flow channel is connected to the liquid outlet end of the first sub-flow channel through the second sub-flow channel.

[0009] The liquid outlet and the piston cavity of the flow channel are respectively located on both sides of the third sub-flow channel;

[0010] One end of the piston chamber is communicated with the third sub-flow channel, and the other end is communicated with the first sub-flow channel;

[0011] The piston is movably arranged in the piston chamber;

[0012] The end cover is arranged at one end of the piston cavity close to the third sub-flow channel;

[0013] The end cover is provided with a sealing hole which cooperates with the connecting rod seal;

[0014] One end of the connecting rod is connected to the piston, and the other end is connected to the valve plate arranged in the third sub-flow channel;

[0015] The valve plate has an open state and a closed state. In the closed state, the valve plate is used to restrict the oil from flowing out of the liquid outlet.

[0016] The valve plate is provided with a safety hole for oil to pass through;

[0017] The elastic member is arranged between the third sub-flow channel and the second sub-flow channel, and is used for providing an elastic restoring force to the piston to move toward the first sub-flow channel.

[0018] Preferably, the axis of the piston cavity is coaxial with the center line of the liquid outlet.

[0019] Preferably, the method further comprises: a ball valve provided at one end of the piston close to the first sub-channel;

[0020] One end of the piston cavity close to the first sub-flow channel is provided with a limiting structure that cooperates with the ball valve.

[0021] Preferably, the elastic member is a spring, and the spring is arranged between the piston and the end cover.

[0022] Preferably, the liquid outlet and the piston cavity are symmetrically arranged on both sides of the third sub-channel.

[0023] Preferably, it further comprises: a guide tube sealed at the liquid outlet;

[0024] One end of the guide tube protrudes toward the valve plate.

[0025] Preferably, it further comprises: a guide member;

[0026] The guide member is arranged on the guide pipe;

[0027] A guide structure cooperating with the guide piece is provided on one side of the valve plate close to the guide pipe.

[0028] Preferably, the guide member comprises: a fixing ring and a guide rod;

[0029] The fixing ring is arranged at the liquid outlet, and a through hole for the oil to pass through is opened along the axis of the fixing ring;

[0030] A guide cylinder is provided on the side of the valve plate close to the liquid outlet;

[0031] The guide rod is arranged on one side of the fixing ring;

[0032] One end of the guide cylinder is sleeved on the guide rod.

[0033] Preferably, it further comprises: a sealing ring arranged on the piston.

[0034] A second aspect of the present invention discloses a supercharger, comprising the oil pressure regulating structure disclosed in the first aspect of the present invention.

[0035] It can be seen from the above content that the present invention discloses an oil pressure regulating structure and a supercharger. By opening a flow channel and a piston chamber in the valve body, and opening the first sub-flow channel and the third sub-flow channel of the flow channel along the vertical direction of the valve body, the liquid inlet end of the third sub-flow channel is connected with the liquid outlet end of the first sub-flow channel through the second sub-flow channel; and the liquid outlet of the flow channel and the piston chamber are respectively arranged on both sides of the third sub-flow channel; one end of the piston chamber is connected with the third sub-flow channel, and the other end is connected with the first sub-flow channel; the piston is movably arranged in the piston chamber; the end cover is arranged at one end of the piston chamber close to the third sub-flow channel; the end cover is provided with a sealing hole that cooperates with the connecting rod seal, one end of the connecting rod is connected to the piston, and the other end is connected to the valve plate arranged in the third sub-flow channel; and the valve plate is arranged to have an open state and a closed state, so that the valve plate restricts the oil from flowing out of the liquid outlet in the closed state; the valve plate is provided with a safety hole for the oil to pass through; the elastic member is arranged between the third sub-flow channel and the second sub-flow channel, and the elastic member provides an elastic restoring force to the piston to move toward the first sub-flow channel. Through the above-disclosed oil pressure regulating structure, when the oil pressure entering the first sub-channel is greater than the elastic restoring force provided by the elastic member, the oil pushes the piston to move toward the third sub-channel and drives the valve plate to move toward the liquid outlet, thereby reducing the gap between the valve plate and the liquid outlet to reduce the flow rate of the oil at the liquid outlet, thereby reducing the pressure of the oil flowing out of the liquid outlet. Therefore, by arranging the oil pressure regulating structure provided by the present application in the supercharger, the oil pressure entering the supercharger can be effectively regulated to avoid oil leakage from the shaft core of the supercharger due to excessive oil pressure, reduce oil consumption, and avoid oil pollution of the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0037] Figure 1 A schematic diagram of an oil pressure regulating structure provided by an embodiment of the present invention;

[0038] Figure 2 A structural front view of a guide member provided in an embodiment of the present invention;

[0039] Figure 3 A structural side view of a guide member provided in an embodiment of the present invention.

[0040] Among them, the valve body 1, the flow channel 11, the liquid inlet 111, the liquid outlet 112, the first sub-flow channel 113, the second sub-flow channel 114, the third sub-flow channel 115, the piston chamber 12, the limiting structure 121; the piston 2; the connecting rod 3; the elastic member 4; the end cover 5; the valve plate 6, the guide cylinder 61; the ball valve 7; the guide tube 8; the guide member 9, the fixing ring 91, and the guide rod 92. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] In this application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0043] The embodiment of the present invention provides an oil pressure regulating structure, see Figures 1 to 3 , Figure 1 Schematic diagram of the oil pressure regulating structure, which includes: a valve body 1, a piston 2, a connecting rod 3, an elastic member 4, an end cover 5 and a valve plate 6;

[0044] The valve body 1 is provided with a flow channel 11 and a piston chamber 12;

[0045] The flow channel 11 includes a first sub-flow channel 113, a second sub-flow channel 114, and a third sub-flow channel 115. The first sub-flow channel 113 and the third sub-flow channel 115 are both opened in the vertical direction of the valve body 1. The liquid inlet end of the third sub-flow channel 115 is connected to the liquid outlet end of the first sub-flow channel 113 through the second sub-flow channel 114.

[0046] The liquid outlet 112 of the flow channel 11 and the piston chamber 12 are respectively located on both sides of the third sub-flow channel 115;

[0047] One end of the piston chamber 12 is in communication with the third sub-channel 115 , and the other end is in communication with the first sub-channel 113 ;

[0048] The piston 2 is movably disposed in the piston chamber 12;

[0049] The end cover 5 is provided at one end of the piston chamber 12 close to the third sub-flow channel 115;

[0050] The end cover 5 is provided with a sealing hole which is sealed with the connecting rod 3;

[0051] One end of the connecting rod 3 is connected to the piston 2, and the other end is connected to the valve plate 6 disposed in the third sub-channel 115;

[0052] The valve plate 6 has an open state and a closed state. In the closed state, the valve plate 6 is used to restrict the oil from flowing out of the liquid outlet 112;

[0053] The valve plate 6 is provided with a safety hole for the passage of oil;

[0054] The elastic member 4 is disposed between the third sub-channel 115 and the second sub-channel 114 . The elastic member 4 is used to provide an elastic restoring force to the piston 2 to move toward the first sub-channel 113 .

[0055] It should be noted that by providing a safety hole for oil passage on the valve plate 6, a small amount of oil can be ensured to pass through when the valve plate 6 is in a closed state, thereby ensuring that the supercharger can always be in a lubricated state and avoiding damage to the supercharger due to lack of oil.

[0056] It should also be noted that, since the piston 2 is movably arranged in the piston chamber 12, the sealing hole opened in the end cover 5 is sealed with the connecting rod 3, and one end of the connecting rod 3 is connected to the piston 2, and the other end is connected to the valve plate 6 arranged in the third sub-channel 115, and the elastic member 4 can provide the piston 2 with an elastic restoring force to move toward the first sub-channel 113. Therefore, when the oil pressure of the engine oil entering the first sub-channel 113 is less than the elastic restoring force provided by the elastic member 4, the valve plate 6 is in an open state at this time, that is, the piston 2 maintains a gap for the engine oil to pass through between the valve plate 6 and the liquid outlet 112 under the action of the elastic restoring force of the elastic member 4, that is, the engine oil can flow along the first sub-channel 113, the second sub-channel 114, and the third sub-channel. The oil flows through the channel and finally flows out from the liquid outlet 112; when the oil pressure of the engine oil entering the first sub-channel 113 increases to a level greater than the elastic restoring force provided by the elastic member 4, the piston 2 moves toward the third sub-channel 115 in the piston chamber 12, and drives the valve plate 6 to move toward the liquid outlet 112, so that the gap between the valve plate 6 and the liquid outlet 112 is reduced, and then when the engine oil passes through the liquid outlet 112, the oil pressure of the engine oil is reduced; and when the oil pressure of the engine oil entering the first sub-channel 113 is much greater than the required oil pressure, the piston 2 will drive the valve plate 6 to block the liquid outlet 112, so that the valve plate 6 is in a closed state. At this time, only a small amount of engine oil flows from the safety hole of the valve plate 6 to the liquid outlet 112 to ensure that the supercharger is always in a lubricated state.

[0057] It is worth noting that since the oil pressure of the liquid outlet 112 of the present application is determined by the elastic restoring force provided by the elastic member 4, those skilled in the art can select elastic members 4 with different elastic coefficients as needed, which is not specifically limited here.

[0058] In the embodiment of the present application, a flow channel 11 and a piston chamber 12 are provided in the valve body 1, and the first sub-flow channel 113 and the third sub-flow channel 115 of the flow channel 11 are both provided in the vertical direction of the valve body 1, and the liquid inlet end of the third sub-flow channel 115 is connected with the liquid outlet end of the first sub-flow channel 113 through the second sub-flow channel 114 of the flow channel 11; and the liquid outlet 112 of the flow channel 11 and the piston chamber 12 are respectively arranged on both sides of the third sub-flow channel 115; one end of the piston chamber 12 is connected with the third sub-flow channel 115, and the other end is connected with the first sub-flow channel 113; the piston 2 is movably arranged in the piston chamber 12; the end The cover 5 is arranged at one end of the piston chamber 12 near the third sub-channel 115; the end cover 5 is provided with a sealing hole that seals with the connecting rod 3, one end of the connecting rod 3 is connected to the piston 2, and the other end is connected to the valve plate 6 arranged in the third sub-channel 115; and the valve plate 6 is arranged to have an open state and a closed state, so that the valve plate 6 restricts the oil from flowing out of the liquid outlet 112 in the closed state; the valve plate 6 is provided with a safety hole for the oil to pass through; the elastic member 4 is arranged between the third sub-channel 115 and the second sub-channel 114, and the elastic member 4 provides the piston 2 with an elastic restoring force to move toward the first sub-channel 113. Through the above-mentioned disclosed oil pressure regulating structure, when the oil pressure entering the first sub-channel 113 is greater than the elastic restoring force provided by the elastic member 4, the oil pushes the piston 2 to move toward the third sub-channel 115, and drives the valve plate 6 to move toward the liquid outlet 112, so that the gap between the valve plate 6 and the liquid outlet 112 is reduced, so as to reduce the flow rate of the oil at the liquid outlet 112, and thereby reduce the pressure of the oil flowing out of the liquid outlet 112. Therefore, by arranging the oil pressure regulating structure provided by the present application in the supercharger, the oil pressure entering the supercharger can be effectively regulated, and the oil can be prevented from leaking from the shaft core of the supercharger due to excessive oil pressure. It can also reduce the oil consumption and prevent the oil from polluting the environment.

[0059] Specifically, the axis of the piston chamber 12 is coaxial with the center line of the liquid outlet 112 .

[0060] It should be noted that setting the axis of the piston chamber 12 and the center line of the liquid outlet 112 to be coaxial not only facilitates the processing of the piston chamber 12, but also facilitates the assembly of the piston 2, which can improve the installation efficiency of the oil pressure regulating structure.

[0061] Furthermore, the oil pressure regulating structure further includes: a ball valve 7 provided at one end of the piston 2 near the first sub-channel 113;

[0062] A limiting structure 121 cooperating with the ball valve 7 is provided at one end of the piston chamber 12 close to the first sub-channel 113 .

[0063] It should be noted that, by providing a ball valve 7 at one end of the piston 2 close to the first sub-channel 113, and providing a limiting structure 121 that cooperates with the ball valve 7 at one end of the piston chamber 12 close to the first sub-channel 113, it is possible to prevent the piston 2 from escaping from the piston chamber 12 under the action of the elastic restoring force of the elastic part 4 when the oil pressure entering the first sub-channel 113 suddenly decreases.

[0064] Specifically, the elastic member 4 is a spring, which is arranged between the piston 2 and the end cover 5 .

[0065] It should be noted that the elastic member 4 may be a spring or other component (such as a spring) that can provide elastic restoring force when the piston 2 moves toward the third sub-channel 115 . Those skilled in the art may select the one according to their needs.

[0066] It should also be noted that the spring can be arranged between the piston 2 and the end cover 5, and the end cover 5 can limit the spring to prevent the spring from escaping from the piston cavity 12.

[0067] Preferably, the end cover 5 and the piston chamber 12 are engaged with each other through threads.

[0068] It should be noted that the end cover 5 can be matched with the piston cavity 12 through threads, or can be fixed to one end of the piston cavity 12 by bolts. Those skilled in the art can make the choice according to needs.

[0069] Specifically, the liquid outlet 112 and the piston chamber 12 are symmetrically arranged on both sides of the third sub-channel 115 .

[0070] It should be noted that the liquid outlet 112 and the piston chamber 12 are symmetrically arranged on both sides of the third sub-channel 115, so that the piston 2 can be coaxially arranged with the valve plate 6 through the connecting rod 3. When the piston 2 drives the valve plate 6 to seal the liquid outlet 112 through the connecting rod 3, the force on the valve plate 6 can be more evenly distributed, ensuring that the valve plate 6 can block the liquid outlet 112 and prevent the oil under excessive pressure from flowing out through the liquid outlet 112.

[0071] Furthermore, the oil pressure regulating structure further includes: a guide tube 8 sealedly disposed at the liquid outlet 112;

[0072] One end of the flow guide tube 8 protrudes toward the valve plate 6 .

[0073] It should be noted that, since the side of the liquid outlet 112 that cooperates with the valve plate 6 is a curved structure, the side of the valve plate 6 that cooperates with the liquid outlet 112 needs to be processed into a matching curved structure. By sealing the guide tube 8 at the liquid outlet 112, one end of the guide tube 8 protrudes toward the valve plate 6. Since the end of the guide tube 8 is a planar structure, it is only necessary to set the side of the valve plate 6 that cooperates with the end of the guide tube 8 to be a plane. The guide tube 8 and the valve plate 6 can cooperate to limit the flow of engine oil from the liquid outlet 112. Setting the valve plate 6 to a planar structure can not only reduce the manufacturing difficulty, but also ensure that the assembly difficulty is reduced.

[0074] It is worth noting that the guide tube 8 is sealed at the liquid outlet 112, and the engine oil cannot flow out from the guide tube 8 and the liquid outlet 112. When the valve plate 6 is in the open state, the engine oil flows out through the guide tube 8, and when the valve plate 6 is in the closed state, the engine oil cannot flow out from the guide tube 8.

[0075] Furthermore, the oil pressure regulating structure further includes: a guide member 9;

[0076] The guide member 9 is provided on the guide tube 8;

[0077] A guide structure cooperating with the guide member 9 is provided on one side of the valve plate 6 close to the flow guide tube 8 .

[0078] It should be noted that by providing a guide member 9 on the guide tube 8 and providing a guide structure that cooperates with the guide member 9 on the side of the valve plate 6 close to the guide tube 8, the valve plate 6 can be kept in a vertical state during the movement of the valve plate 6 toward the guide tube 8, and when the valve plate 6 moves to contact the guide tube 8, the end of the guide tube 8 can be blocked to limit the outflow of high-pressure engine oil from the guide tube 8.

[0079] Specifically, the guide member 9 includes: a fixing ring 91 and a guide rod 92;

[0080] The fixing ring 91 is provided at the liquid outlet 112, and a through hole for the oil to pass through is opened along the axis of the fixing ring 91;

[0081] A guide cylinder 61 is provided on the side of the valve plate 6 close to the liquid outlet 112;

[0082] The guide rod 92 is provided on one side of the fixing ring 91;

[0083] One end of the guide tube 61 is sleeved on the guide rod 92 .

[0084] It should be noted that the guide member 9 is configured as a fixed ring 91 and a guide rod 92, and the fixed ring 91 is set at the liquid outlet 112, and a through hole for the oil to pass through is opened along the axis of the fixed ring 91, and a guide cylinder 61 is provided on the side of the valve plate 6 close to the liquid outlet 112; the guide rod 92 is set on one side of the fixed ring 91; one end of the guide cylinder 61 is sleeved on the guide rod 92, and through the above-mentioned disclosed oil pressure regulating structure, during the movement of the valve plate 6 to the guide pipe 8, the cooperation between the guide cylinder 61 and the guide rod 92 can further ensure that the valve plate 6 is always in a vertical state, and when the valve plate 6 moves to contact the guide pipe 8, the guide pipe 8 can be blocked to limit the outflow of high-pressure oil from the guide pipe 8.

[0085] Preferably, the liquid inlet 111 of the flow channel 11 and the liquid outlet 112 of the flow channel 11 are symmetrically arranged on the valve body 1 .

[0086] It should be noted that the liquid inlet 111 of the flow channel 11 and the liquid outlet 112 of the flow channel 11 can be symmetrically arranged on the valve body 1, or can be asymmetrically arranged. Those skilled in the art can make a choice according to needs.

[0087] Furthermore, the oil pressure regulating structure further includes: a sealing ring provided on the piston 2 .

[0088] It should be noted that, by providing a sealing ring in the piston 2 , the sealing performance between the piston 2 and the piston cavity 12 can be further improved, thereby preventing the engine oil from entering the cavity formed by the end cover 5 and the piston 2 .

[0089] Based on the above disclosed oil pressure regulating structure, an embodiment of the present invention further provides a supercharger, the supercharger comprising: an oil pressure regulating structure;

[0090] The oil pressure regulating structure includes: a valve body 1, a piston 2, a connecting rod 3, an elastic member 4, an end cover 5 and a valve plate 6;

[0091] The valve body 1 is provided with a flow channel 11 and a piston chamber 12;

[0092] The flow channel 11 includes a first sub-flow channel 113, a second sub-flow channel 114, and a third sub-flow channel 115. The first sub-flow channel 113 and the third sub-flow channel 115 are both opened in the vertical direction of the valve body 1. The liquid inlet end of the third sub-flow channel 115 is connected to the liquid outlet end of the first sub-flow channel 113 through the second sub-flow channel 114.

[0093] The liquid outlet 112 of the flow channel 11 and the piston chamber 12 are respectively located on both sides of the third sub-flow channel 115;

[0094] One end of the piston chamber 12 is in communication with the third sub-channel 115 , and the other end is in communication with the first sub-channel 113 ;

[0095] The piston 2 is movably disposed in the piston chamber 12;

[0096] The end cover 5 is provided at one end of the piston chamber 12 close to the third sub-flow channel 115;

[0097] The end cover 5 is provided with a sealing hole which is sealed with the connecting rod 3;

[0098] One end of the connecting rod 3 is connected to the piston chamber 12, and the other end is connected to the valve plate 6 disposed in the third sub-channel 115;

[0099] The valve plate 6 has an open state and a closed state. In the closed state, the valve plate 6 is used to restrict the oil from flowing out of the liquid outlet 112;

[0100] The valve plate 6 is provided with a safety hole for the passage of oil;

[0101] The elastic member 4 is disposed between the third sub-channel 115 and the second sub-channel 114 . The elastic member 4 is used to provide an elastic restoring force to the piston 2 to move toward the first sub-channel 113 .

[0102] In the embodiment of the present application, a flow channel 11 and a piston chamber 12 are provided in the valve body 1, and the first sub-flow channel 113 and the third sub-flow channel 115 of the flow channel 11 are both provided in the vertical direction of the valve body 1, and the liquid inlet end of the third sub-flow channel 115 is connected with the liquid outlet end of the first sub-flow channel 113 through the second sub-flow channel 114 of the flow channel 11; and the liquid outlet 112 of the flow channel 11 and the piston chamber 12 are respectively arranged on both sides of the third sub-flow channel 115; one end of the piston chamber 12 is connected with the third sub-flow channel 115, and the other end is connected with the first sub-flow channel 113; the piston 2 is movably arranged in the piston chamber 12; and the end cover 5 is disposed at one end of the piston chamber 12 near the third sub-channel 115; the end cover 5 is provided with a sealing hole that seals with the connecting rod 3; one end of the connecting rod 3 is connected to the piston chamber 12, and the other end is connected to the valve plate 6 disposed in the third sub-channel 115; the valve plate 6 is configured to have an open state and a closed state, and thus, when the valve plate 6 is closed, it restricts the outflow of oil from the liquid outlet 112; the valve plate 6 has a safety hole for the passage of oil; the elastic member 4 is disposed between the third sub-channel 115 and the second sub-channel 114, and the elastic member 4 provides an elastic restoring force to the piston 2 to move toward the first sub-channel 113. Through the supercharger disclosed above, when the oil pressure of the oil entering the first sub-channel 113 is greater than the elastic restoring force provided by the elastic member 4, the oil pushes the piston 2 to move toward the third sub-channel 115, and drives the valve plate 6 to move toward the liquid outlet 112, so that the gap between the valve plate 6 and the liquid outlet 112 is reduced, so as to reduce the flow rate of the oil at the liquid outlet 112, and thereby reduce the pressure of the oil flowing out of the liquid outlet 112. Therefore, by arranging the oil pressure regulating structure provided by the present application in the supercharger, the oil pressure entering the supercharger can be effectively regulated, and the oil can be prevented from leaking from the shaft core of the supercharger due to excessive oil pressure. It can also reduce the oil consumption and prevent the oil from polluting the environment.

[0103] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple. For relevant parts, refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without expending creative work.

[0104] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0105] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil pressure regulating structure, characterized in that: include: Valve body, piston, connecting rod, elastic part, end cover and valve plate; The valve body is provided with a flow channel and a piston cavity; The flow channel includes a first sub-flow channel, a second sub-flow channel and a third sub-flow channel, wherein the first sub-flow channel and the third sub-flow channel are both opened along the vertical direction of the valve body, and the liquid inlet end of the third sub-flow channel is connected to the liquid outlet end of the first sub-flow channel through the second sub-flow channel; The liquid outlet of the flow channel and the piston chamber are respectively located on both sides of the third sub-flow channel; One end of the piston chamber is in communication with the third sub-channel, and the other end is in communication with the first sub-channel; The piston is movably arranged in the piston chamber; The end cover is arranged at one end of the piston chamber close to the third sub-channel; The end cover is provided with a sealing hole for sealing with the connecting rod; One end of the connecting rod is connected to the piston, and the other end is connected to the valve plate arranged in the third sub-flow channel; The valve plate has an open state and a closed state, and in the closed state, the valve plate is used to restrict the oil from flowing out of the liquid outlet; The valve plate is provided with a safety hole for oil to pass through; The elastic member is disposed between the third sub-flow channel and the second sub-flow channel, and is used to provide an elastic restoring force to the piston to move toward the first sub-flow channel.

2. The oil pressure regulating structure according to claim 1, characterized in that: The axis of the piston cavity is coaxial with the center line of the liquid outlet.

3. The oil pressure regulating structure according to claim 1, characterized in that: Also includes: a ball valve disposed at one end of the piston near the first sub-channel; One end of the piston cavity close to the first sub-channel is provided with a limiting structure that cooperates with the ball valve.

4. The oil pressure regulating structure according to claim 1, characterized in that: The elastic member is a spring, and the spring is arranged between the piston and the end cover.

5. The oil pressure regulating structure according to claim 1, characterized in that: The liquid outlet and the piston cavity are symmetrically arranged on both sides of the third sub-channel.

6. The oil pressure regulating structure according to claim 1, characterized in that: Also includes: A flow guide tube sealed at the liquid outlet; One end of the flow guide pipe protrudes toward the valve plate.

7. The oil pressure regulating structure according to claim 6, characterized in that: Also includes: guides; The guide member is provided on the guide pipe; A guide structure cooperating with the guide member is provided on one side of the valve plate close to the flow guide pipe.

8. The oil pressure regulating structure according to claim 7, characterized in that: The guide member includes: a fixing ring and a guide rod; The fixing ring is arranged at the liquid outlet, and a through hole for oil to pass through is opened along the axis of the fixing ring; A guide cylinder is provided on one side of the valve plate close to the liquid outlet; The guide rod is arranged on one side of the fixing ring; One end of the guide cylinder is sleeved on the guide rod.

9. The oil pressure regulating structure according to claim 1, characterized in that: Also includes: A sealing ring is provided on the piston.

10. A supercharger, characterized in that: The oil pressure regulating structure comprises the oil pressure regulating structure according to any one of claims 1 to 9.

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