Intake and exhaust valve of supercharger

Abstract

The utility model relates to the technical field of high-pressure valves, in particular to an air inlet and outlet valve of a supercharger, which comprises a valve body, a flow channel is arranged in the valve body and is divided into two parts, namely a first part and a second part, the diameter of the first part is larger than that of the second part, the first part is connected with an air outlet, and the second part is connected with an air inlet; the annular seat is arranged on the first part and is close to the air outlet; the guide rod is arranged on the first part, and one end is connected with the annular seat; one side of the spherical valve clack is in contact with the second part, and the other side of the spherical valve clack is in contact with the other end of the guide rod; a first spring is arranged on the guide rod and is in a pre-pressing state. According to the utility model, by integrating the spherical valve clack and the first spring, not only is the mechanism simplified and the reliability enhanced, but also the capacity of the valve is effectively enhanced to resist sudden high-pressure impact through the configuration of the pre-pressing force of the first spring, so that even under the extreme condition of high-pressure reverse flow, the valve is ensured to be stable and reliable. And the valve system can still keep safety and stability.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure valves, and particularly relates to an intake and exhaust valve for a supercharger. Background Technique

[0002] A supercharger is a device used to boost the gas pressure to the required level through the physical process of compressing gas. It mainly includes components such as a cylinder, a piston, a piston rod, and a driving device. Among them, a one-way intake and exhaust valve is installed in the cylinder. The working mechanism of this valve is to allow gas to flow in only one direction, thereby preventing any reverse flow. This valve is usually automatically operated, and the opening and closing of the valve depend on the pressure difference on both sides of the valve. When the pressure inside the valve is higher than the outside pressure, the valve will automatically open to allow gas to flow; while when the gas tries to flow in the reverse direction, the combined action of the fluid pressure and the spring force on the valve flap causes the valve to close, thus preventing the gas from flowing back.

[0003] However, in a high-pressure system, during the opening process of a common one-way valve, the high-pressure gas upstream will have a transient strong impact on the valve core, which will cause a large flow force and kinetic energy on the valve core and collide strongly with the valve body, resulting in deformation, and even leakage, leading to the failure of the valve.

[0004] To solve the above problems, an intake and exhaust valve for a supercharger is designed.

[0005] The information disclosed in this background technical section is only intended to deepen the understanding of the overall background technology of the utility model, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Utility Model

[0006] The utility model provides an intake and exhaust valve for a supercharger, thus effectively solving the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the utility model is: an intake and exhaust valve for a supercharger, comprising:

[0008] A valve body, a flow passage is arranged inside the valve body. The flow passage is set into two parts, namely a first part and a second part. The diameter of the first part is larger than that of the second part. The first part is connected to the air outlet, and the second part is connected to the air inlet;

[0009] An annular seat, the annular seat is arranged in the first part and is close to the air outlet;

[0010] A guide rod, the guide rod is arranged in the first part and one end of the guide rod is fixedly connected to the annular seat;

[0011] A spherical valve flap is provided in the first part, with one side in contact with the second part and the other side in contact with the other end of the guide rod.

[0012] Wherein, a first spring is provided on the guide rod, and the first spring is in a pre-compressed state for resisting transient strong impact forces.

[0013] Further, a valve core is provided in the first part. The valve core includes a cylindrical part and a conical part, and one end is fixedly connected to the annular seat.

[0014] A cylindrical channel and a conical channel are provided inside the valve core. The cylindrical channel is connected to the conical channel. The spherical valve flap is arranged in the cylindrical channel, the first spring is arranged in the conical channel, and the guide rod passes through the valve core.

[0015] Further, an installation groove is provided in the conical channel. The installation groove is arranged at one end of the conical channel close to the annular seat. A convex block is provided at one end of the guide rod close to the spherical valve flap. The first spring is arranged in the installation groove, with one end connected to the valve core and the other end connected to the convex block.

[0016] Further, a plurality of circlips are fixedly arranged in the first part, and the annular seat is fixed in the first part through the circlips.

[0017] Further, a sealing seat is fixedly arranged at one end of the first part close to the second part. The sealing seat is provided with an opening and one end is in contact with the valve core.

[0018] Wherein, the diameter of the opening is smaller than the diameter of the spherical valve flap.

[0019] Further, a second spring is provided on the conical part, and the second spring is used to provide a spring force for the guide rod.

[0020] Further, an annular gasket is arranged between the sealing seat and the valve core.

[0021] The annular gasket is used to further achieve sealing.

[0022] Further, the connection part between the cylindrical channel and the conical channel is set as a chamfered surface, and the connection part between the first part and the second part is set as a chamfered surface.

[0023] The beneficial effects of the present utility model are as follows: By integrating the spherical valve flap and the first spring, the design of this valve not only simplifies the mechanism and enhances the reliability, but also effectively enhances the ability of the valve to resist sudden high-pressure impacts through the pre-compressed configuration of the first spring, ensuring that even in extreme cases of high-pressure backflow, the valve system can still maintain its safety and stability, demonstrating excellent performance and durability. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the intake and exhaust valve structure of the supercharger;

[0026] Figure 2 is Figure 1 Cross-sectional view along A-A;

[0027] Reference numerals: 1, valve body; 11, flow passage; 12, first part; 121, annular seat; 122, guide rod; 122A, convex block; 123, spherical valve flap; 124, first spring; 125, valve core; 125A, cylindrical part; 125B, conical part; 125C, cylindrical channel; 125D, conical channel; 125E, installation groove; 126, circlip; 127, sealing seat; 128, annular gasket; 13, second part; 2, air outlet; 3, air inlet. Detailed Embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Such asFigures 1 to 2 As shown in the figure, a supercharger intake and exhaust valve includes:

[0032] A valve body 1, inside which there is a flow passage 11. The flow passage 11 is set in two parts, namely the first part 12 and the second part 13. The diameter of the first part 12 is larger than that of the second part 13. The first part 12 is connected to the air outlet 2, and the second part 13 is connected to the air inlet 3;

[0033] An annular seat 121, which is arranged in the first part 12 and is close to the air outlet 2;

[0034] A guide rod 122, which is arranged in the first part 12 and one end of which is fixedly connected to the annular seat 121;

[0035] A spherical valve flap 123, which is arranged in the first part 12 and one side of which is in contact with the second part 13 and the other side is in contact with the other end of the guide rod 122;

[0036] Among them, a first spring 124 is arranged on the guide rod 122. The first spring 124 is in a pre-compressed state and is used to resist transient strong impact forces.

[0037] When the valve system is in a state without air flow, the spherical valve flap 123 is pressed against the sealing seat 127 by the force of the first spring 124 to maintain a sealed state; when gas flows in through the air inlet 3 in the forward direction, the high-pressure gas directly acts on the spherical valve flap 123. The spherical valve flap 123 overcomes the pre-compression force of the first spring 124 and moves to the left, separating from the sealing seat 127, thereby opening the passage and allowing the gas flow to flow out from the air outlet 2; on the contrary, when the gas tries to flow backward, the high-pressure gas acts on the guide rod 122 and the spherical valve flap 123. The spherical valve flap 123 is pressed tightly under the combined action of the first spring 124 and the high-pressure gas, thereby preventing the gas from flowing backward.

[0038] By integrating the spherical valve flap 123 and the first spring 124, the design of this valve not only simplifies the mechanism and enhances the reliability, but also effectively enhances the valve's ability to resist sudden high-pressure impacts through the pre-compression configuration of the first spring 124, ensuring that even in extreme cases of high-pressure reverse flow, the valve system can still maintain its safety and stability, demonstrating excellent performance and durability.

[0039] As a preference of the above embodiment, a valve core 125 is arranged in the first part 12. The valve core 125 includes a cylindrical part 125A and a conical part 125B, and one end of which is fixedly connected to the annular seat 121;

[0040] Inside the valve core 125, there are a cylindrical passage 125C and a conical passage 125D. The cylindrical passage 125C is in communication with the conical passage 125D. The spherical valve flap 123 is arranged in the cylindrical passage 125C, the first spring 124 is arranged in the conical passage 125D, and the guide rod 122 passes through the valve core 125.

[0041] The valve core 125 is arranged in the first part 12, including a cylindrical part 125A and a conical part 125B, and is fixedly connected to the annular seat 121 at one end. Inside the valve core 125, there are designed a cylindrical passage 125C and a conical passage 125D. The spherical valve flap 123 is placed in the cylindrical passage 125C, while the first spring 124 is installed in the conical passage 125D, and the guide rod 122 passes through the entire valve core 125. When gas flows in from the air inlet 3, the high-pressure gas pushes the spherical valve flap 123 to move along the cylindrical passage 125C, overcoming the resistance of the first spring 124, thereby opening the passage to allow the gas to flow through; if the gas tries to flow backward, the spherical valve flap 123 is pressed tightly against the second part 13 under the push of the high pressure, forming a sealed state to prevent the gas from flowing backward. The seal between the spherical valve flap 123 and the valve core 125 forms a hard seal, which not only ensures the reliability of the seal but also significantly improves the service life of the entire valve, effectively resisting wear under changing pressure and environmental conditions.

[0042] In this embodiment, an installation groove 125E is arranged in the conical passage 125D. The installation groove 125E is arranged at one end of the conical passage 125D close to the annular seat 121. A convex block 122A is arranged at one end of the guide rod 122 close to the spherical valve flap 123. The first spring 124 is arranged in the installation groove 125E, and is connected to the valve core 125 at one end and to the convex block 122A at the other end.

[0043] The provision of the installation groove 125E in the conical passage 125D provides a fixed point where the first spring 124 can be installed. By connecting one end to the valve core 125 and the other end to the convex block 122A on the guide rod 122, the first spring 124 can effectively support the spherical valve flap 123 under the action of high-pressure gas to maintain or break contact with the valve seat, thereby controlling the direction of the air flow. In this way, the interaction between the spherical valve flap 123 and the guide rod 122 optimizes the sealing effect, and at the same time ensures that the valve can respond quickly when subjected to high-pressure impact, and maintains the stability and sealing performance of the valve, guaranteeing the reliability and efficiency of the system operation.

[0044] As a preference of the above embodiment, several snap rings 126 are fixedly arranged in the first part 12, and the annular seat 121 is fixed in the first part 12 through the snap rings 126.

[0045] By firmly fixing the annular seat 121 in its position using a circlip 126, it can be ensured that the annular seat 121 can maintain a constant position under long-term operation and various operating conditions of the valve, thereby improving the reliability and durability of the valve.

[0046] In this embodiment, a sealing seat 127 is fixedly arranged at one end of the first part 12 close to the second part 13. The sealing seat 127 is provided with an opening and is in contact with the valve core 125 at one end.

[0047] Among them, the diameter of the opening is smaller than the diameter of the spherical valve flap 123.

[0048] The sealing seat 127 is fixed at one end of the first part 12 close to the second part 13 and is in contact with the valve core 125. At the same time, the diameter of its opening is smaller than the diameter of the spherical valve flap 123, ensuring that when the spherical valve flap 123 is in the closed position, it can completely cover the opening of the sealing seat 127, thereby forming an efficient sealing barrier, preventing the backflow and leakage of gas, and improving the overall sealing efficiency of the valve system. In addition, by precisely matching the sizes of the spherical valve flap 123 and the sealing seat 127, the valve can maintain stable sealing performance under various pressure conditions, thereby improving the reliability of the valve and the safety of the system.

[0049] In this embodiment, a second spring is arranged on the conical part, and the second spring is used to provide a spring force for the guide rod 122.

[0050] The second spring installed on the conical part provides the necessary spring force for the guide rod 122, enhancing the response ability and shock resistance of the entire valve. With the support of the second spring, the guide rod 122 can quickly adjust the position of the spherical valve flap 123 in the face of an instantaneous high-pressure air flow, effectively resisting the acting force of the high-pressure impact. This not only ensures the safe and reliable operation of the intake and exhaust valve under extreme operating conditions but also ensures that the valve can continuously and stably control the air flow, preventing accidental leakage or damage, thereby extending the service life of the valve and maintaining the overall performance of the system.

[0051] In this embodiment, an annular gasket 128 is arranged between the sealing seat 127 and the valve core 125.

[0052] The annular gasket 128 is used to further achieve sealing.

[0053] The presence of the annular gasket 128 provides an additional sealing layer, effectively filling the possible small gaps between the sealing seat 127 and the valve core 125, thereby preventing gas leakage, ensuring that the valve can maintain an efficient sealing effect under different operating conditions, improving the safety and reliability of the system, reducing the need for maintenance at the same time, and extending the overall service life of the valve and the system.

[0054] In this embodiment, the connection between the cylindrical channel 125C and the conical channel 125D is set as a chamfered surface, and the connection between the first part 12 and the second part 13 is set as a chamfered surface.

[0055] The connections between the cylindrical channel 125C and the conical channel 125D and between the first part 12 and the second part 13 are both set as chamfered surfaces, reducing the turbulence during fluid flow and improving the gas flow efficiency. The application of the chamfered surface enables the gas to convert more smoothly when passing through these key connection points, reducing the flow resistance and the generation of gas vortices. This not only optimizes the gas transmission efficiency but also reduces wear, ensures the precise docking between components, and further enhances the stability and sealing performance of the entire valve structure, thereby improving the reliability and overall performance of the valve system.

[0056] Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A supercharger intake and exhaust valve, characterized in that, Comprising: A valve body, inside which there is a flow passage. The flow passage is set into two parts, namely the first part and the second part. The diameter of the first part is larger than that of the second part. The first part is connected to the air outlet, and the second part is connected to the air inlet; An annular seat, which is arranged in the first part and close to the air outlet; A guide rod, which is arranged in the first part and has one end fixedly connected to the annular seat; A spherical valve flap, which is arranged in the first part and has one side in contact with the second part and the other side in contact with the other end of the guide rod; Wherein, a first spring is arranged on the guide rod. The first spring is in a pre-compressed state and is used to resist transient strong impact forces.

2. The supercharger intake and exhaust valve according to claim 1, characterized in that, A valve core is arranged in the first part. The valve core includes a cylindrical part and a conical part, and one end is fixedly connected to the annular seat; A cylindrical passage and a conical passage are arranged inside the valve core. The cylindrical passage is communicated with the conical passage. The spherical valve flap is arranged in the cylindrical passage, the first spring is arranged in the conical passage, and the guide rod passes through the valve core.

3. The supercharger intake and exhaust valve according to claim 2, characterized in that, An installation groove is arranged in the conical passage. The installation groove is arranged at one end of the conical passage close to the annular seat. A convex block is arranged at one end of the guide rod close to the spherical valve flap. The first spring is arranged in the installation groove, and one end is connected to the valve core and the other end is connected to the convex block.

4. The supercharger intake and exhaust valve according to claim 2, characterized in that, A number of circlips are fixedly arranged in the first part. The annular seat is fixed in the first part through the circlips.

5. The supercharger intake and exhaust valve according to claim 2, characterized in that, A sealing seat is fixedly arranged at one end of the first part close to the second part. The sealing seat has an opening and one end is in contact with the valve core; Wherein, the diameter of the opening is smaller than the diameter of the spherical valve flap.

6. The supercharger intake and exhaust valve according to claim 2, characterized in that, A second spring is arranged on the conical part. The second spring is used to provide a spring force for the guide rod.

7. The supercharger intake and exhaust valve according to claim 5, wherein, An annular gasket is arranged between the sealing seat and the valve core; The annular gasket is used to further achieve sealing.

8. The supercharger intake and exhaust valve according to claim 2, characterized in that, The connection part between the cylindrical passage and the conical passage is set as a chamfered surface, and the connection part between the first part and the second part is set as a chamfered surface.

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