Pulsation valve, horizontal rotary compressor for vehicle, air conditioning system and vehicle

By designing a pulsation valve in the air conditioning system and utilizing a combination of flow channels and movable valve cores, the noise problem caused by compressor pressure pulsation was solved, resulting in noise reduction and improved system stability.

CN224479332UActive Publication Date: 2026-07-10ANQING WELLING AUTO PARTS CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANQING WELLING AUTO PARTS CO LTD
Filing Date
2024-09-26
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In air conditioning systems, pressure pulsations in the compressor cause noise problems, especially in vehicles, where the noise is amplified and propagated through the heat exchanger.

Method used

Design a pulsation valve, including a valve body, a valve core, an elastic element, and an adjusting element. By setting a first flow channel and a second flow channel in the valve body, the gas path is changed, and the movable valve core adjusts the gap according to the pressure pulsation intensity, thereby weakening the energy of the pressure pulsation and reducing vibration noise.

Benefits of technology

It effectively alleviates pressure pulsation during compressor operation, reduces vibration and noise, improves system stability and reliability, and adapts to pressure pulsation characteristics under various operating conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224479332U_ABST
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Abstract

This utility model discloses a pulsating valve, a horizontal rotary compressor for automobiles, an air conditioning system, and a vehicle, relating to the field of compressors. The pulsating valve includes a valve body, a valve core, an elastic element, and an adjusting element. The valve body has an inlet wall with a valve body inlet, forming two flow channels. The first flow channel connects to the valve body inlet, and the second flow channel is located on the outer periphery of the first flow channel. The valve core is movably disposed in the first flow channel. When the valve core contacts the inlet wall, it closes the second flow channel. When the valve core separates from the inlet wall, a connecting annular gap is formed between them, connecting the valve body inlet and the second flow channel. The valve body has a valve core port, one end of which faces the valve body inlet and the other end connects to either the first or second flow channel. The flow area of ​​the valve core port is smaller than the flow area of ​​the valve body inlet to serve as a throttling channel. The elastic element is connected to the valve core to press it against the inlet wall. The adjusting element is connected to the elastic element and is movably connected to the valve body to adjust the preload. This pulsating valve can reduce exhaust pulsation and exhaust pulsation noise.
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