Oil circuit system and engine having the same

Abstract

The present invention provides an oil circuit system and an engine having the same, including an oil circuit main pipe for connecting a solenoid valve and an execution workpiece, and the oil circuit system also includes: a balancing circuit, which is arranged on the oil circuit main pipe, and the balancing circuit includes an oil inlet port and an oil outlet port connected to the oil circuit main pipe; the oil inlet port and the oil outlet port are arranged in sequence along the direction from the solenoid valve to the execution workpiece; a pressure storage component, which is arranged on the balancing circuit, and the pressure storage component has an oil storage chamber for storing oil, and the oil storage chamber is respectively connected to the oil inlet port and the oil outlet port. The present invention solves the problem that the hydraulic oil circuit in the engine in the prior art is prone to malfunction when it is opened or closed.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic oil circuit design, and in particular to an oil circuit system and an engine having the same. Background Art

[0002] At present, hydraulic systems are widely used in the engine field due to their advantages such as self-lubrication, shock absorption, high damping and incompressibility.

[0003] In the hydraulic oil circuit system of the engine, there are often moments when hydraulic components start and end working, and large pressure waves will be generated in the oil circuit in the reverse direction. For example, if the oil circuit pressure is 4 bar, the pressure wave peak will reach 12 to 15 bar.

[0004] This reverse pressure wave will have a great impact on the valve core of the solenoid valve, and may even cause the valve core to fall off, resulting in abnormal function of the hydraulic system, and thus causing the engine to fail to start.

[0005] In the prior art, a pressure relief hole is usually provided on the pressure control valve, and a small amount of pressure is continuously released through the pressure relief hole to achieve pressure balance inside the oil tank.

[0006] However, in the existing pressure relief method, only obvious pressure relief can be achieved at the pressure control valve, and the pressure relief effect is not obvious, and it is unable to fundamentally solve the impact of reverse pressure on the solenoid valve and the problem of abnormal function of the engine at the moment of starting and closing. Summary of the invention

[0007] The main purpose of the present invention is to provide an oil circuit system and an engine having the same, so as to solve the problem in the prior art that the hydraulic oil circuit in the engine is prone to malfunction when being opened or closed.

[0008] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an oil circuit system, including an oil circuit main pipe for connecting the solenoid valve and the actuator, and the oil circuit system also includes: a balancing circuit, which is arranged on the oil circuit main pipe, and the balancing circuit includes an oil inlet port and an oil outlet port connected to the oil circuit main pipe; along the direction from the solenoid valve to the actuator, the oil inlet port and the oil outlet port are arranged in sequence; a pressure storage component, which is arranged on the balancing circuit, and the pressure storage component has an oil storage chamber for storing oil, and the oil storage chamber is respectively connected to the oil inlet port and the oil outlet port.

[0009] Furthermore, the pressure storage assembly also includes: a pushing component, which is movably arranged in the oil storage chamber, and the pushing component moves in a direction away from the oil inlet of the oil storage chamber under the action of oil pressure; or, the pushing component moves in a direction close to the oil outlet of the oil storage chamber to push the oil in the oil storage chamber into the oil main pipe.

[0010] Furthermore, the pressure storage component also includes: an elastic component, one end of the elastic component is connected to the inner wall surface of the oil storage chamber, and the other end of the elastic component is connected to the pushing component.

[0011] Furthermore, the pushing component is a plate-like structure, and the end surfaces extending along the circumferential direction of the pushing component are all in contact with the inner wall surface of the oil storage cavity.

[0012] Furthermore, the balancing circuit also includes: a first branch, two ends of which are respectively connected to the oil main pipe and the oil storage chamber, and the oil inlet port is arranged on the first branch.

[0013] Furthermore, the oil circuit system also includes: a first one-way valve, which is arranged on the first branch circuit and controls the on-off of the first branch circuit through the first one-way valve.

[0014] Furthermore, the oil circuit system also includes: a second one-way valve, which is arranged between the first branch and the oil storage chamber, and the second one-way valve is used to control the connection and disconnection between the first branch and the oil storage chamber.

[0015] Furthermore, the balancing circuit also includes: a second branch, two ends of the second branch are respectively connected to the oil storage chamber and the oil circuit main pipe, and the oil outlet port is arranged on the second branch.

[0016] Furthermore, the oil circuit system also includes: a third one-way valve, which is arranged on the second branch circuit, and the opening and closing of the second branch circuit is controlled by the third one-way valve.

[0017] According to another aspect of the present invention, an engine is provided, comprising an oil circuit system and a body, wherein the oil circuit system is arranged in the body, and the oil circuit system is the above-mentioned oil circuit system.

[0018] According to the technical solution of the present invention, the oil circuit system includes an oil circuit main pipe for connecting the solenoid valve and the execution workpiece, wherein the oil circuit system also includes a balancing circuit and a pressure storage component, the balancing circuit is arranged on the oil circuit main pipe, the balancing circuit includes an oil inlet port and an oil outlet port connected to the oil circuit main pipe, and the oil inlet port and the oil outlet port are arranged in sequence along the direction from the solenoid valve to the execution workpiece, and further, the pressure storage component is arranged on the balancing circuit, and the pressure storage component has an oil storage chamber for storing oil, and the oil storage chamber is connected to the oil inlet port and the oil outlet port respectively. By setting up a balancing circuit, when the execution workpiece feeds back oil to the solenoid valve, it can be directly fed back to the balancing circuit and the oil is stored in the oil storage chamber, thus reducing the impact force of the oil fed back by the execution workpiece on the solenoid valve, and utilizing the balancing circuit to protect the solenoid valve.

[0019] In actual application, when the solenoid valve is opened, the oil flows to the actuator, and the actuator will feedback a reverse pressure wave to the solenoid valve. At this time, the pressure in the oil main pipe increases, and the oil will flow in the opposite direction toward the solenoid valve. By setting the oil inlet port and the oil outlet port in sequence on the oil main pipe along the direction from the solenoid valve to the actuator, part of the oil will flow directly into the balance circuit through the oil inlet port when the oil impacts in the reverse direction, thereby reducing the impact force on the solenoid valve to protect the solenoid valve and avoid damage to the solenoid valve under the impact of the oil. The oil flowing into the balance circuit is stored in the oil storage chamber. When the oil in the oil storage chamber reaches a certain pressure, it slowly flows out to the oil main pipe. In this way, when the hydraulic oil circuit in the engine is opened or closed, the problem of engine malfunction can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic structural diagram of an embodiment of an oil circuit system according to the present invention is shown;

[0022] Figure 2 A schematic diagram showing the structure of a balancing circuit of an oil circuit system according to the present invention is shown;

[0023] Figure 3 It shows a structural schematic diagram of a first embodiment of the installation of an elastic component in an oil circuit system according to the present invention;

[0024] Figure 4 A structural schematic diagram of a second embodiment of an elastic component in an oil circuit system according to the present invention is shown.

[0025] The above drawings include the following reference numerals:

[0026] 100, solenoid valve; 200, actuator; 300, oil main pipe; 1, balancing circuit; 10, oil inlet port; 11, oil outlet port; 2, pressure storage component; 20, oil storage chamber; 21, pushing component; 22, elastic component; 12, first branch; 120, first pipe section; 121, second pipe section; 3, first one-way valve; 4, second one-way valve; 13, second branch; 5, third one-way valve; 6, bolt. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Please refer to Figures 1 to 4 The present invention provides an oil circuit system, including an oil circuit main pipe 300 for connecting an electromagnetic valve 100 and an actuator 200, and the oil circuit system also includes: a balancing circuit 1, which is arranged on the oil circuit main pipe 300, and the balancing circuit 1 includes an oil inlet port 10 and an oil outlet port 11 connected to the oil circuit main pipe 300; along the direction from the electromagnetic valve 100 to the actuator 200, the oil inlet port 10 and the oil outlet port 11 are arranged in sequence; a pressure storage component 2, which is arranged on the balancing circuit 1, and the pressure storage component 2 has an oil storage chamber 20 for storing oil, and the oil storage chamber 20 is respectively connected to the oil inlet port 10 and the oil outlet port 11.

[0031] According to the present invention, an oil circuit system is provided, including an oil circuit main pipe 300 for connecting the solenoid valve 100 and the actuator 200, wherein the oil circuit system also includes a balancing circuit 1 and a pressure storage component 2, the balancing circuit 1 is arranged on the oil circuit main pipe 300, the balancing circuit 1 includes an oil inlet port 10 and an oil outlet port 11 connected to the oil circuit main pipe 300, and the oil inlet port 10 and the oil outlet port 11 are arranged in sequence along the direction from the solenoid valve 100 to the actuator 200, further, the pressure storage component 2 is arranged on the balancing circuit 1, and the pressure storage component 2 has an oil storage chamber 20 for storing oil, and the oil storage chamber 20 is respectively connected to the oil inlet port 10 and the oil outlet port 11. By setting up the balancing circuit 1, when the workpiece 200 feeds back oil to the solenoid valve 100, it can be directly fed back to the balancing circuit 1 and the oil can be stored in the oil storage chamber 20. This reduces the impact force of the oil fed back by the workpiece 200 on the solenoid valve 100. The balancing circuit 1 is utilized to protect the solenoid valve 100, thereby solving the problem in the prior art that the hydraulic oil circuit in the engine is prone to malfunction when opened or closed.

[0032] In actual application, when the solenoid valve 100 is opened, the oil flows to the actuator 200, and the actuator 200 will feedback a reverse pressure wave to the solenoid valve 100. At this time, the pressure in the oil main pipe 300 increases, and the oil will flow in the opposite direction toward the solenoid valve 100. By sequentially setting an oil inlet port 10 and an oil outlet port 11 on the oil main pipe 300 along the direction from the solenoid valve 100 to the actuator 200, part of the oil will directly flow into the balancing circuit 1 through the oil inlet port when the oil impacts in the reverse direction, thereby reducing the impact force on the solenoid valve 100, so as to protect the solenoid valve 100 and avoid damage to the solenoid valve 100 under the impact of the oil. The oil flowing into the balancing circuit 1 is stored in the oil storage chamber 20. When the oil in the oil storage chamber 20 reaches a certain pressure, it slowly flows out to the oil main pipe 300. In this way, when the hydraulic oil circuit in the engine is opened or closed, the problem of abnormal engine function is avoided.

[0033] During the specific implementation of the present application, the pressure storage assembly 2 also includes: a pushing component 21, which is movably arranged in the oil storage chamber 20, and the pushing component 21 moves in the direction away from the oil inlet of the oil storage chamber 20 under the action of oil pressure; or, the pushing component 21 moves in the direction close to the oil outlet of the oil storage chamber 20 to push the oil in the oil storage chamber 20 into the oil circuit main pipe 300.

[0034] By setting the pushing component 21, it is convenient to control the total amount of oil pushed out of the oil storage chamber 20, so that during the operation of the balancing circuit 1, the storage amount and the push-out amount of oil in the oil storage chamber 20 can be controlled in coordination with the oil pressure changes in the oil main pipe 300 and the oil changes in the balancing circuit 1.

[0035] In one embodiment provided by the present invention, Figure 2 As shown, the pressure storage assembly 2 further includes: an elastic component 22, one end of the elastic component 22 is connected to the inner wall surface of the oil storage chamber 20, and the other end of the elastic component 22 is connected to the pushing component 21. Preferably, the elastic component 22 is a spring component.

[0036] Among them, the pushing component 21 is connected to the inner wall surface of the oil storage chamber 20 through a telescopic tube, the elastic component 22 is sleeved on the telescopic tube, and the elastic component 22 is guided by the telescopic rod. Preferably, the telescopic tube is a bellows, so that it can be extended and retracted as the pushing component 21 moves. At the same time, the telescopic tube and the elastic component 22 can be used together to drive the pushing component 21 to move.

[0037] In another embodiment provided by the present invention, the pressure storage assembly 2 also includes an electric push rod, which is telescopically arranged. The pushing component 21 is arranged at the end of the electric push rod. When the oil flows into the oil storage chamber 20, the electric push rod is in a retracted state. When the pressure in the oil storage chamber 20 reaches the maximum, the electric push rod is extended to use the pushing component 21 to push the oil in the oil storage chamber 20 into the oil main pipe 300.

[0038] Among them, a pressure detection component is provided in the oil storage chamber 20, and the pressure detection component is communicated with the electric push rod. The oil pressure in the oil storage chamber 20 is detected by the pressure detection component, and the pressure detection component transmits the detected oil pressure to the control module. The control module compares the detected oil pressure with the preset pressure value in the module. When the detected oil pressure is greater than or equal to the preset pressure value, the electric push rod is controlled to be pushed out.

[0039] Preferably, the pressure detection component is an electronic pressure gauge or a pressure sensor.

[0040] By setting the elastic component 22, under the action of oil pressure, the pushing component 21 moves toward the direction of the oil inlet away from the oil storage chamber 20, and the elastic component 22 is compressed at this time. When the oil pressure in the oil storage chamber 20 reaches the maximum value, the pushing component 21 stops moving in the direction of the oil inlet away from the oil storage chamber 20, and under the action of the elastic restoring force of the elastic component 22, the pushing component 21 is pushed to move in the direction of the oil outlet close to the oil storage chamber 20, so as to facilitate the slow push of the oil stored in the oil storage chamber 20 into the oil main pipe 300, so as to circulate in the oil system of the engine.

[0041] In the specific implementation process, in order to prevent oil from remaining in the oil storage chamber 20, the pushing component 21 is a plate-like structure, and the end surfaces extending along the circumferential direction of the pushing component 21 are all in contact with the inner wall surface of the oil storage chamber 20. Preferably, the inner wall surface of the oil storage chamber 20 is an arc surface, and the side surface of the pushing component 21 extends along the circumferential direction.

[0042] By setting the pushing component 21 as a plate-like structure and extending the side of the pushing component 21 in the circumferential direction, the pushing component 21 is closely fitted with the inner wall surface of the oil storage chamber 20, thereby minimizing the residual oil on the inner wall surface of the oil storage chamber 20 and avoiding waste of resources.

[0043] In the embodiment provided by the present invention, in order to facilitate the control of the balancing circuit 1, the balancing circuit 1 also includes: a first branch 12, the two ends of the first branch 12 are respectively connected to the oil circuit main pipe 300 and the oil storage chamber 20, and the oil inlet port 10 is arranged on the first branch 12.

[0044] By setting up the first branch 12, connecting the two ends of the first branch 12 to the oil main pipe 300 and the oil storage chamber 20 respectively, and setting the oil inlet port 10 on the first branch 12, the first branch 12 can be easily controlled to cooperate with the operation of the entire hydraulic system.

[0045] Specifically, in order to prevent the oil in the first branch 12 from flowing back, the oil circuit system further includes: a first one-way valve 3 , which is arranged on the first branch 12 to control the opening and closing of the first branch 12 through the first one-way valve 3 .

[0046] When the solenoid valve 100 is opened, the first one-way valve 3 is closed so that the oil can fully act on the execution workpiece 200 and drive the execution workpiece 200 to move. Then, the first one-way valve 3 is opened so that the oil fed back by the execution workpiece 200 flows into the oil storage chamber 20 through the oil inlet port 10.

[0047] In the specific implementation process, the oil circuit system also includes: a second one-way valve 4, which is arranged between the first branch 12 and the oil storage chamber 20, and the second one-way valve 4 controls the connection and disconnection between the first branch 12 and the oil storage chamber 20.

[0048] During use, when the solenoid valve 100 is opened, the second one-way valve 4 remains closed, and the first one-way valve 3 can remain closed or open to prevent the oil flowing out of the solenoid valve 100 from entering the oil storage chamber 20.

[0049] Furthermore, in order to facilitate the connection between the oil outlet of the oil storage chamber 20 and the oil circuit main pipe 300, the balancing circuit 1 also includes: a second branch 13, the two ends of the second branch 13 are respectively connected to the oil storage chamber 20 and the oil circuit main pipe 300, and the oil outlet port 11 is arranged on the second branch 13.

[0050] By setting the second branch 13 and setting the oil outlet port 11 on the second branch 13, it is convenient to push the oil in the oil storage chamber 20 into the oil circuit main pipe 300, and it is convenient to control the connection state between the oil storage chamber 20 and the oil circuit main pipe 300 through the second branch 13.

[0051] Furthermore, the oil circuit system further includes: a third one-way valve 5 , which is arranged on the second branch 13 , and the opening and closing of the second branch 13 are controlled by the third one-way valve 5 .

[0052] By setting the third one-way valve 5 on the second branch 13, it is possible to prevent the oil in the second branch 13 from flowing back into the oil storage chamber 20. At the same time, it is also possible to prevent the oil from entering the oil storage chamber 20 through the oil outlet port 11 when the solenoid valve 100 is opened. After the pressure in the oil storage chamber 20 reaches a certain value, the third one-way valve 5 is opened.

[0053] In the present application, the first branch 12 also includes a first pipe section 120 and a second pipe section 121 which are interconnected, the first one-way valve 3 is arranged between the first pipe section 120 and the second pipe section 121, the oil inlet port 10 is arranged on the first pipe section 120, and the second one-way valve 4 is arranged between the second pipe section 121 and the oil storage chamber 20.

[0054] Preferably, the oil circuit system also includes a mounting shell, the oil storage chamber 20 is located in the mounting shell, the pushing component 21 and the elastic component 22 are both connected to the mounting shell, and the mounting shell is connected to the engine unit by a bolt 6, the number of threads of the bolt 6 is less than 5, and its installation position is located at the top of the mounting shell.

[0055] During actual use, after the solenoid valve 100 is energized, an oil pressure P1 is generated in the oil main pipe 300, and P1 drives the workpiece 200 to work. At this time, the workpiece 200 will generate a reverse oil pressure P2, which is 3 to 5 times that of P1. At this time, the oil pressure in the oil main pipe 300, the first pipe section 120, the second pipe section 121 and the second branch 13 are all P1.

[0056] Furthermore, at this time, the first one-way valve 3 , the second one-way valve 4 and the third one-way valve 5 are all closed.

[0057] When P2 is transmitted to the first pipe section 120, the first one-way valve 3 and the second one-way valve 4 are opened, and the third one-way valve 5 is closed. Part of the oil enters the second pipe section 121 through the first one-way valve 3, and then continues to enter the oil storage chamber 20 through the second one-way valve 4. At this time, the oil pushes the pushing component 21 to move and compresses the elastic component 22. At this time, the oil pressure in the oil circuit main pipe 300, the first pipe section 120 and the second pipe section 121 is the same.

[0058] As the oil continuously enters the oil storage chamber 20, the oil pressure in the second branch 13 gradually becomes greater than the oil pressure in the oil main pipe 300. At this time, the second one-way valve 4 is closed, and the third one-way valve 5 is opened. The elastic restoring force of the elastic component 22 is used to push the pushing component 21, and the oil in the oil storage chamber 20 is pushed into the oil main pipe 300 through the third one-way valve 5 until the pressure in the oil main pipe 300 is equal to the pressure in the second branch 13. Then the third one-way valve 5 is closed to complete the operation of the balancing circuit 1. The storage of oil in the balancing circuit 1 is used to reduce the impact on the solenoid valve 100. When the oil in the second branch 13 flows back to the oil main pipe 300, since the solenoid valve 100 also continuously outputs oil to the executing workpiece 200, the oil flowing out of the second branch 13 directly drives the executing workpiece 200 to operate.

[0059] In the process of opening each one-way valve, the opening pressure of the second one-way valve 4 is less than P1 , and the opening pressure of the first one-way valve 3 and the opening pressure of the third one-way valve 5 are consistent with the opening pressure of the second one-way valve 4 .

[0060] The present invention further provides an engine, comprising an oil circuit system and a body, wherein the oil circuit system is arranged in the body, and the oil circuit system is the oil circuit system of the above embodiment.

[0061] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0062] According to the present invention, an oil circuit system is provided, including an oil circuit main pipe 300 for connecting the solenoid valve 100 and the actuator 200, wherein the oil circuit system also includes a balancing circuit 1 and a pressure storage component 2, the balancing circuit 1 is arranged on the oil circuit main pipe 300, the balancing circuit 1 includes an oil inlet port 10 and an oil outlet port 11 connected to the oil circuit main pipe 300, and the oil inlet port 10 and the oil outlet port 11 are arranged in sequence along the direction from the solenoid valve 100 to the actuator 200, further, the pressure storage component 2 is arranged on the balancing circuit 1, and the pressure storage component 2 has an oil storage chamber 20 for storing oil, and the oil storage chamber 20 is respectively connected to the oil inlet port 10 and the oil outlet port 11. By setting up the balancing circuit 1, when the workpiece 200 feeds back oil to the solenoid valve 100, it can be directly fed back to the balancing circuit 1 and the oil can be stored in the oil storage chamber 20. This reduces the impact force of the oil fed back by the workpiece 200 on the solenoid valve 100. The balancing circuit 1 is utilized to protect the solenoid valve 100, thereby solving the problem in the prior art that the hydraulic oil circuit in the engine is prone to malfunction when opened or closed.

[0063] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil circuit system, comprising an oil circuit main pipe (300) for connecting a solenoid valve (100) and an actuator (200), characterized in that: The oil circuit system also includes: A balancing circuit (1) is arranged on the oil circuit main pipe (300), and the balancing circuit (1) comprises an oil inlet port (10) and an oil outlet port (11) which are in communication with the oil circuit main pipe (300); the oil inlet port (10) and the oil outlet port (11) are arranged in sequence along the direction from the solenoid valve (100) to the actuator (200); A pressure storage component (2) is arranged on the balancing circuit (1), the pressure storage component (2) having an oil storage chamber (20) for storing oil, the oil storage chamber (20) being communicated with the oil inlet port (10) and the oil outlet port (11) respectively; the pressure storage component (2) also comprises a pushing component (21) and an elastic component (22), one end of the elastic component (22) being connected to the inner wall surface of the oil storage chamber (20), and the other end of the elastic component (22) being connected to the pushing component (21); The balancing circuit (1) further comprises a first branch (12) and a second branch (13); the two ends of the first branch (12) are respectively connected to the oil circuit main pipe (300) and the oil storage chamber (20); the oil inlet port (10) is arranged on the first branch (12); the two ends of the second branch (13) are respectively connected to the oil storage chamber (20) and the oil circuit main pipe (300); the oil outlet port (11) is arranged on the second branch (13); the oil circuit system further comprises a first one-way valve (3), a second one-way valve (4) and a third one-way valve (5), wherein the first one-way valve (3) is arranged on the first branch (12), and the first one-way valve (3) is used to control the on-off of the first branch (12); the second one-way valve (4) is arranged between the first branch (12) and the oil storage chamber (20), and the second one-way valve (4) is used to control the on-off between the first branch (12) and the oil storage chamber (20); the third one-way valve (5) is arranged on the second branch (13), and the third one-way valve (5) is used to control the on-off of the second branch (13).

2. The oil circuit system according to claim 1, characterized in that: The pushing component (21) is movably arranged in the oil storage chamber (20), and the pushing component (21) moves in a direction away from the oil inlet of the oil storage chamber (20) under the action of oil pressure; or, the pushing component (21) moves in a direction close to the oil outlet of the oil storage chamber (20) to push the oil in the oil storage chamber (20) into the oil main pipe (300).

3. The oil circuit system according to claim 2, characterized in that: The pushing component (21) is a plate-shaped structure, and the end surfaces extending along the circumferential direction of the pushing component (21) are all in contact with the inner wall surface of the oil storage chamber (20).

4. An engine, comprising an oil circuit system and a body, wherein the oil circuit system is arranged in the body, and characterized in that: The oil circuit system is the oil circuit system according to any one of claims 1 to 3.

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