An air intake valve seat assembly for an ASU gas pump

Abstract

This utility model provides an intake valve seat assembly for an ASU air pump, belonging to the field of automotive parts technology. It includes a cylinder block with an intake channel inside, an intake valve seat within the intake channel, a guide member on the intake valve seat, and a floating intake valve plate connected to the guide member. The intake valve seat has several intake holes for air intake, the bottom of which communicates with the intake channel, and the top of which contacts the intake valve plate. During the intake phase, the intake valve plate floats upward, allowing air to flow in. During the compression phase, the intake valve plate and intake valve seat are tightly fitted together to prevent backflow of air. This utility model, through its floating connection, avoids metal deformation of the intake valve plate during long-term use, ensures a tight fit between the intake valve seat and the intake valve plate, guarantees long-term stable operation of the intake valve plate, and improves the intake efficiency of the air pump.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an intake valve seat assembly for an ASU air pump. Background Technology

[0002] In automotive components, the air supply unit of the air suspension system is the core component for realizing dynamic vehicle adjustment. With the development of new energy vehicles and autonomous driving technology, the air supply unit will continue to break through towards high precision, high reliability, and low energy consumption. The piston connecting rod assembly, as the actuator, has become a key fulcrum for improving the performance of the air suspension system. In the existing intake valve seat assembly on the connecting rod piston assembly, the intake valve plate is fixed to the intake valve seat by cold riveting. This cold riveting method achieves the fixation of the intake valve plate by plastic deformation of the metal around the intake valve seat. Due to the deformation characteristics of the metal in the surrounding area, local gaps may appear between the intake valve plate and the valve seat, making it impossible to achieve a tight fit. This cannot ensure its long-term stable operation under actual working conditions and affects the intake efficiency of the air pump. To address this, we propose an intake valve seat assembly device for ASU air pumps. Utility Model Content

[0003] In view of this, the present invention provides an intake valve seat assembly for an ASU air pump. By using a floating connection, the metal deformation of the intake valve plate can be avoided during long-term use. This ensures a tight fit between the intake valve seat and the intake valve plate, guaranteeing the long-term stable operation of the intake valve plate and improving the intake efficiency of the air pump.

[0004] To solve the above-mentioned technical problems, this utility model provides an intake valve seat assembly for an ASU air pump, including a cylinder body with an intake channel inside the cylinder body. An intake valve seat is disposed within the intake channel, and a guide is disposed on the intake valve seat. An intake valve plate that can float up and down is connected to the guide, and can float and open and close on the intake valve seat according to pressure changes. The intake valve seat has several intake holes for air intake. The bottom of the intake hole is connected to the intake channel, and the top of the intake hole is in contact with the intake valve plate. During the intake phase, the intake valve plate floats upward to allow air to flow in. During the compression phase, the intake valve plate is tightly fitted with the intake valve seat to prevent air backflow, realizing unidirectional air intake, significantly improving sealing reliability, and increasing air pump efficiency.

[0005] The guide is T-shaped, which can guide the intake valve plate within a limited distance, ensuring the floating stability of the intake valve plate.

[0006] The contact surfaces of the intake valve seat and the intake valve plate are parallel, ensuring a tight fit and efficient seal during the compression stage.

[0007] Multiple air inlets can distribute the total flow rate to each hole, ensuring a stable and even distribution of air intake, meeting the requirements for gas flow area, and effectively reducing noise.

[0008] The intake passage is equipped with a piston that can move up and down, and the intake valve seat is fixed on the piston.

[0009] A compression chamber is provided inside the cylinder. Air enters the compression chamber through the intake port on the intake valve seat. The compression chamber is located between the intake valve plate and the exhaust valve plate.

[0010] The cylinder block is equipped with an exhaust valve plate for exhausting air. During the compression phase, air is discharged through the exhaust valve plate.

[0011] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0012] 1. When this utility model is used, the intake valve plate floats up and down through the guide component, and automatically fits and seals the valve seat during the compression stage, avoiding the metal deformation and local gap problems caused by traditional cold riveting, significantly improving sealing reliability and increasing air pump efficiency.

[0013] 2. When this utility model is used, the T-shaped guide restricts the floating stroke of the valve plate, ensuring that its vertical movement does not deviate and ensuring the floating stability of the intake valve plate.

[0014] 3. When this utility model is used, multiple air inlets disperse the total airflow, achieving stable and even airflow, reducing vibration and noise, and meeting the flow area requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the intake valve seat assembly of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the intake valve seat assembly of this utility model;

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the intake valve seat assembly of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 100, cylinder block; 201, intake valve seat; 202, intake valve plate; 203, guide component; 204, intake port; 300, piston; 400, compression chamber; 500, exhaust valve plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0020] According to embodiments of the present invention, such as Figure 1-3 As shown: This embodiment provides an intake valve seat assembly for an ASU air pump, including a cylinder body 100. An intake passage is formed within the cylinder body 100, and an intake valve seat 201 is disposed within the intake passage. A guide member 203 is disposed on the intake valve seat 201. The guide member 203 can be a pin. An intake valve plate 202, which can float up and down, is connected to the guide member 203 and can float and open / close on the intake valve seat 201 according to pressure changes. The intake valve plate 202 is made of a flexible material (such as a thin metal sheet or composite material). The 01 has several air inlet holes 204 for air intake. The bottom of the air inlet hole 204 is connected to the air intake channel, and the top of the air inlet hole 204 is in contact with the air intake valve plate 202. During the intake stage, the air intake valve plate 202 floats upward to allow air to flow in. During the compression stage, the air intake valve plate 202 is tightly fitted with the air intake valve seat 201 to prevent air backflow and realize unidirectional air intake. The floating air intake valve plate 202 can achieve rapid response and can open and close quickly to adapt to high-speed operating conditions, significantly improving sealing reliability and increasing air pump efficiency.

[0021] Furthermore, the guide 203 is T-shaped, which can provide guidance for the intake valve plate 202 over a limited distance, ensuring the floating stability of the intake valve plate 202.

[0022] It is worth mentioning that when the pin is pressed into the intake valve seat 201, the rivet head can be pressed directly, which simplifies the assembly process, reduces production costs, and prevents the intake valve plate 202 from bending or rotating due to not being riveted. The pin head can occupy part of the space in the exhaust valve seat hole, reducing the top clearance of the air pump and thus improving the exhaust efficiency of the air pump.

[0023] Furthermore, the contact surfaces of the intake valve seat 201 and the intake valve plate 202 are parallel, ensuring a tight fit and efficient sealing during the compression stage.

[0024] Furthermore, such as Figure 3As shown, multiple air inlets 204 can distribute the total flow rate to each hole, ensuring a stable and uniform airflow distribution, meeting the gas flow area requirements, and effectively reducing noise. If one air inlet 204 is blocked by foreign objects, the other holes can still continue to work, ensuring the reliability and fault tolerance of the system. In some special application scenarios (such as multi-directional air intake requirements), multiple air inlets 204 can be flexibly arranged to meet different space and functional requirements.

[0025] Furthermore, such as Figure 2 and Figure 3 As shown, a piston 300 that can move up and down is provided inside the air intake passage, and the air intake valve seat 201 is fixed on the piston 300.

[0026] Furthermore, a compression chamber 400 is provided inside the cylinder block 100. Air enters the compression chamber 400 through the air intake hole 204 on the intake valve seat 201. The compression chamber 400 is located between the intake valve plate 202 and the exhaust valve plate 500.

[0027] Furthermore, the cylinder block 100 is provided with an exhaust valve plate 500 for exhausting air. During the compression phase, air is discharged through the exhaust valve plate 500.

[0028] It is worth mentioning that during the intake phase, the piston 300 moves downward, creating a negative pressure in the compression chamber 400. The intake valve 202 is pushed open by the pressure at the bottom of the piston 300. Air enters the compression chamber 400 through the intake port 204 on the intake valve seat 201. During the intake phase, the piston 300 moves upward, increasing the pressure in the compression chamber 400. The intake valve 202 closes due to the high pressure, preventing air backflow. At this time, air can only be discharged through the exhaust valve 500, forming a unidirectional flow.

[0029] It should be clarified here that piston 300 and exhaust valve plate 500 are common structures used in automotive air suspension pumps in the prior art. Since they are not the main technical features of this utility model, the model will not be limited here, nor will their structure be described in detail. Only the working method and installation position of intake valve seat 201, intake valve plate 202, etc. will be described in detail.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An intake valve seat assembly for an ASU air pump, comprising a cylinder block (100), characterized in that: An intake channel is provided inside the cylinder body (100), and an intake valve seat (201) is provided inside the intake channel. A guide (203) is provided on the intake valve seat (201), and an intake valve plate (202) that can float up and down is connected to the guide (203). Several intake holes (204) for intake are provided on the intake valve seat (201). The bottom of the intake hole (204) is connected to the intake channel, and the top of the intake hole (204) is in contact with the intake valve plate (202). During the intake stage, the intake valve plate (202) floats upward to allow air to flow in. During the compression stage, the intake valve plate (202) is tightly fitted with the intake valve seat (201) to prevent air backflow.

2. The intake valve seat assembly for an ASU air pump as described in claim 1, characterized in that: The guide (203) is T-shaped and can provide guidance for the intake valve plate (202) over a limited distance.

3. The intake valve seat assembly for an ASU air pump as described in claim 1, characterized in that: The contact surfaces of the intake valve seat (201) and the intake valve plate (202) are parallel.

4. The intake valve seat assembly for an ASU air pump as described in claim 1, characterized in that: The multiple air inlets (204) can distribute the total flow rate to each inlet, ensuring a stable and uniform airflow distribution.

5. The intake valve seat assembly for an ASU air pump as described in claim 1, characterized in that: The intake passage is equipped with a piston (300) that can move up and down, and the intake valve seat (201) is fixed on the piston (300).

6. The intake valve seat assembly for an ASU air pump as described in claim 1, characterized in that: The cylinder (100) has a compression chamber (400) inside, and air enters the compression chamber (400) through the air inlet (204) on the air inlet valve seat (201).

7. The intake valve seat assembly for an ASU air pump as described in claim 1, characterized in that: The cylinder (100) is provided with an exhaust valve plate (500) for exhausting air. During the compression stage, air is discharged through the exhaust valve plate (500).

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