Anti-abrasion surge valve

Abstract

The utility model relates to the technical field of automobile surge valves, in particular to an anti-abrasion surge valve which comprises a lower valve body, an upper valve body and a valve element, an air inlet and an air outlet are formed in the bottom end and the side wall of the lower valve body respectively, and a mounting cavity is formed in the upper valve body. The rubber abutting piece is fixedly connected to the end of the plug through the screw, the protruding ring on the edge of the rubber abutting piece can directly abut against the edge of the air inlet in the working process, and due to the fact that the rubber abutting piece is made of soft materials and has good abrasion resistance, in the pressure relief process, the rubber abutting piece is not prone to falling off. The protruding ring on the edge of the rubber contact piece can effectively prevent the plug from directly contacting with the edge of the air inlet, the plug and the air inlet can be protected from being abraded, when the protruding ring on the edge of the rubber contact piece abuts against the edge of the air inlet, the protruding ring can always guarantee the sealing performance of the air inlet, and therefore the service life of the surge valve is prolonged, and the surge valve is suitable for popularization and application. And the stable operation of the supercharger connected with the device can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive surge valve technology, and more specifically, to a wear-resistant surge valve. Background Technology

[0002] Surge valves are primarily used in engines equipped with turbochargers. When the engine operates at high boost pressure and the throttle is closed, significant back pressure is generated, which can cause the turbocharger compressor impeller to stop rotating or the turbocharger to surge. Surge valves regulate gas flow to ensure proper turbocharger operation, improving engine reliability and performance.

[0003] The existing surge valve includes a valve core that can move back and forth. When the pressure in the turbocharger is higher than the pressure in the engine intake manifold, the valve core will drive the front plug to move backward, opening the intake port and releasing the air pressure in the turbocharger into the air filter. After the pressure is released, the turbocharger and the engine intake manifold achieve pressure balance. At this time, the valve core will rebound and drive the front plug to seal the intake port, thus sealing the turbocharger. During the above operation, the front plug of the valve core will collide with the intake port. After long-term use, the plug and the intake port will wear down after repeated collisions, resulting in a poor seal between the plug and the intake port, causing the turbocharger to malfunction. Utility Model Content

[0004] This invention provides a wear-resistant surge valve, which solves the technical problem of poor fixation effect on the patient's head in the prior art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A wear-resistant surge valve includes a lower valve body, an upper valve body, and a valve core. The lower valve body has an air inlet and an exhaust port on its bottom and side wall, respectively. The upper valve body has an internal mounting cavity. The valve core is slidably mounted inside the mounting cavity. A spring is provided between the inside of the mounting cavity and the valve core. The end of the valve core extends out of the mounting cavity and is fitted with a plug. The upper valve body is also connected to a set of connecting pipes communicating with the mounting cavity. The surge valve also includes a set of rubber contact plates. The edges of the rubber contact plates are provided with raised rings. The surface of the rubber contact plates has several sets of mounting holes. The end of the plug has screw grooves corresponding to the several sets of mounting holes.

[0007] Furthermore, both the raised ring and the edge of the air inlet are mutually fitted beveled structures.

[0008] Furthermore, an annular groove is provided around the outer side of the air inlet and the exhaust outlet, and a sealing ring is provided inside the annular groove.

[0009] Furthermore, the edge of the raised ring is provided with a snap-fit ​​edge.

[0010] Furthermore, the lower valve body and the upper valve body are made of cast iron, and their surfaces are provided with an electroplated anti-corrosion layer.

[0011] Furthermore, the surface of the lower valve body is provided with directional markings.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the rubber contact plate is fixedly connected to the end of the plug by screws, and the raised ring on the edge of the rubber contact plate can directly abut against the edge of the air inlet during operation. Since the rubber contact plate is made of relatively soft material and has good wear resistance, the raised ring on the edge of the rubber contact plate can effectively prevent the plug from directly contacting the edge of the air inlet during the depressurization process, thus protecting both from wear. When the raised ring on the edge of the rubber contact plate abuts against the edge of the air inlet, the raised ring can always ensure the sealing of the air inlet, thereby improving the service life of the surge valve and ensuring that the booster connected to it can operate stably. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the plug and the rubber contact piece in this utility model;

[0017] Figure 4 This is a cross-sectional view of the lower valve body in this utility model.

[0018] In the diagram: 1. Lower valve body; 2. Upper valve body; 3. Valve core; 4. Air inlet; 5. Exhaust outlet; 6. Mounting cavity; 7. Spring; 8. Plug; 9. Rubber contact plate; 10. Raised ring; 11. Mounting hole; 12. Screw groove; 13. Indicator; 14. Connecting pipe; 15. Annular groove; 16. Sealing ring; 17. Snap-fit ​​edge. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4A wear-resistant surge valve includes a lower valve body 1, an upper valve body 2, and a valve core 3. The lower valve body 1 and the upper valve body 2 are connected as a single unit via a flange. An air inlet 4 and an exhaust port 5 are respectively provided on the bottom and side wall of the lower valve body 1. The air inlet 4 can be connected to a booster via a flange, and the exhaust port 5 can be connected to an air filter via a flange. An installation cavity 6 is provided inside the upper valve body 2, and the valve core 3 is slidably installed inside the installation cavity 6. A spring 7 is provided between the installation cavity 6 and the valve core 3. The end of the valve core 3 extends out of the installation cavity 6. A plug 8 is provided on the outside of the mounting cavity 6. The spring 7 is in a compressed state, which can exert an outward pushing force on the valve core 3 inside the mounting cavity 6. Under this elastic force, the plug 8 at the end of the valve core 3 can fit against the inside of the air intake 4, thereby sealing the air intake 4. A set of connecting pipes 14 connected to the mounting cavity 6 is also connected to the upper valve body 2. The connecting pipes 14 are connected to the engine intake pipe. When the pressure in the engine intake pipe is lower than the pressure in the turbocharger, a negative pressure will be generated inside the mounting cavity 6. At this time, the mounting cavity... The negative pressure in cavity 6 causes valve core 3 to move inward toward the mounting cavity 6. During this process, plug 8 no longer blocks the intake port 4. The air pressure in the turbocharger enters the lower valve body 1 through the intake port 4 and enters the air filter through the exhaust port 5, thus depressurizing the turbocharger. After depressurization, the pressure in the turbocharger and the engine intake manifold are balanced. At this time, valve core 3 moves outward under the elastic force of spring 7, allowing plug 8 to block the intake port 4 again. This surge valve also... It includes a set of rubber contact pieces 9, the edge of which is provided with a raised ring 10, and the surface of the rubber contact pieces 9 is provided with a number of mounting holes 11. The end of the plug 8 is provided with a screw groove 12 corresponding to the number of mounting holes 11. When the rubber contact piece 9 is attached to the end of the plug 8, a screw is passed through the mounting hole 11 and screwed into the screw groove 12, so that the rubber contact piece 9 can be fixedly connected to the end of the plug 8. At this time, the raised ring 10 on the edge of the rubber contact piece 9 will cover the edge of the plug 8.

[0022] During the depressurization process of the turbocharger, the plug 8 will come into contact with the edge of the air inlet 4 under the action of the mounting cavity 6. In order to reduce the wear between the plug 8 and the air inlet 4, the rubber contact plate 9 is fixedly connected to the end of the plug 8 by screws. The raised ring 10 on the edge of the rubber contact plate 9 can directly abut against the edge of the air inlet 4. Since the rubber contact plate 9 is made of relatively soft material and has good wear resistance, during the depressurization process, the raised ring 10 on the edge of the rubber contact plate 9 can effectively prevent the plug 8 from directly contacting the edge of the air inlet 4, and can protect the two from wear. When the raised ring 10 on the edge of the rubber contact plate 9 abuts against the edge of the air inlet 4, the raised ring 10 can always ensure the sealing of the air inlet 4, thereby improving the service life of the surge valve and ensuring that the turbocharger connected to it can operate stably.

[0023] For further details, please refer to Figure 1-4 The edges of the raised ring 10 and the air inlet 4 are both beveled structures that fit together. When the raised ring 10 and the edge of the air inlet 4 come into contact with each other, the bevels between them cooperate to improve the sealing performance between the air inlet 4 and the rubber contact piece 9. Furthermore, when the air inlet 4 and the raised ring 10 are in contact with each other, the beveled structure can offset the compressive stress between the rubber contact piece 9 and the air inlet 4, making it less likely for the edge of the air inlet 4 to deform.

[0024] For further details, please refer to Figure 1-4 An annular groove 15 is provided around the outer side of the air inlet 4 and the exhaust port 5. A sealing ring 16 is provided inside the annular groove 15. The annular groove 15 around the air inlet 4 and the exhaust port 5 respectively cooperates with the sealing rings on the turbocharger and the air filter. After connection, the sealing performance of the connection can be further increased to prevent gas from leaking from the joint.

[0025] For further details, please refer to Figure 1-4 The protruding ring 10 has a snap-fit ​​edge 17 on its edge. When the rubber contact piece 9 is attached to the end of the plug 8, the snap-fit ​​edge 17 can be fitted onto the edge of the plug 8, so that the rubber contact piece 9 can completely cover the end of the plug 8, thereby improving the tightness of the connection between the protruding ring 10 on the edge of the rubber contact piece 9 and the plug 8, and preventing the protruding ring 10 on the edge of the rubber contact piece 9 from warping.

[0026] For further details, please refer to Figure 1-4 The lower valve body 1 and the upper valve body 2 are made of cast iron, which has high strength and is not easily deformed. Their surfaces are provided with an electroplated anti-corrosion layer to prevent the lower valve body 1 and the upper valve body 2 from rusting, thereby further ensuring their service life.

[0027] For further details, please refer to Figure 1-4 The surface of the lower valve body 1 is provided with a directional mark 13, which indicates the direction of pressure relief by arrow, thereby preventing the surge valve from failing to perform its pressure relief function due to incorrect installation.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant surge valve, comprising a lower valve body (1), an upper valve body (2), and a valve core (3), characterized in that, The lower valve body (1) is provided with an air inlet (4) and an exhaust port (5) on its bottom and side wall, respectively. The upper valve body (2) is provided with an installation cavity (6). The valve core (3) is slidably installed inside the installation cavity (6). A spring (7) is provided between the inside of the installation cavity (6) and the valve core (3). The end of the valve core (3) extends out of the outside of the installation cavity (6) and is provided with a plug (8). The upper valve body (2) is also connected to a set of connecting pipes (14) that communicate with the installation cavity (6). The surge valve also includes a set of rubber contact plates (9). The edge of the rubber contact plate (9) is provided with a protruding ring (10). The surface of the rubber contact plate (9) is provided with several sets of installation holes (11). The end of the plug (8) is provided with a screw groove (12) corresponding to several sets of installation holes (11).

2. The anti-wear surge valve according to claim 1, characterized in that, The edges of the protruding ring (10) and the air inlet (4) are both beveled structures that fit each other.

3. The anti-wear surge valve according to claim 1, characterized in that, An annular groove (15) is provided around the outer side of the air inlet (4) and the exhaust port (5), and a sealing ring (16) is provided inside the annular groove (15).

4. The anti-wear surge valve according to claim 1, characterized in that, The protruding ring (10) has a snap-fit ​​edge (17) on its edge.

5. The anti-wear surge valve according to claim 1, characterized in that, The lower valve body (1) and the upper valve body (2) are made of cast iron and have an electroplated anti-corrosion layer on their surface.

6. The anti-wear surge valve according to claim 1, characterized in that, The surface of the lower valve body (1) is provided with a directional mark (13).

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