Pressure relief assembly of automobile oil pump

By designing a pressure relief component for the automotive oil pump, the problems of oil pump flow pulsation and inconvenient pressure relief were solved, achieving precise and stable pressure control, improving the working reliability and lifespan of the oil pump, and meeting the requirements of modern engines for precise oil pressure control.

CN224413731UActive Publication Date: 2026-06-26RUIAN DINGLI AUTOMOBILE ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202521268572.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-06-26
Estimated Expiration
2035-06-19

AI Technical Summary

Technical Problem

Existing oil pumps suffer from flow pulsation and inconvenient pressure relief during operation, leading to increased vibration, noise, power consumption, and insufficient lubrication, making it difficult to achieve precise oil pressure control.

Method used

A pressure relief assembly for an automotive oil pump has been designed, including a pressure relief sleeve, a pressure relief pipe, a pressure spring, a push plate, and a pressure regulating mechanism. Through the coordinated action of a sealing ring, a limiting sleeve, a guide strip, and a positioning mechanism, the accuracy and stability of pressure control are achieved. The pressure regulating mechanism adopts a precise fit of a screw, a transmission sleeve, and a rotating sleeve to ensure accurate adjustment of the valve value.

Benefits of technology

It effectively prevents gear overload and increased power consumption caused by excessive internal pressure of the oil pump, reduces pipeline vibration and noise, improves the working reliability and service life of the oil pump, and achieves precise oil pressure control under different working conditions.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a pressure relief assembly of an automobile oil pump, which comprises a pump body, a pressure relief mechanism is arranged on the pump body, the pressure relief mechanism comprises a pressure relief sleeve, a pressure relief pipe, a pressure spring, an abutting ring, a push plate, a connecting rod and a pressure regulating mechanism, and the pressure relief sleeve is fixed on the top surface of the pump body. The pressure relief pipe is fixed to the bottom face of the pressure relief sleeve and penetrates into the pump body, the pressure spring is arranged in the pump body and connected to the inner wall of the pressure relief sleeve, and the pressure relief mechanism forms a pressure relief system quick in response through the synergistic effect of the pressure relief sleeve, the pressure relief pipe, the pressure spring, the abutting ring, the push plate and the connecting rod which are arranged on the pump body. Pressure pushes the push plate to move, so that the sealing ring is separated from the sealing groove, a pressure relief channel is formed, the problems of gear overload and power consumption increase caused by overhigh internal pressure of the oil pump are effectively prevented, meanwhile, pipeline vibration and noise are reduced, the working reliability of the oil pump is improved, and the service life of the oil pump is prolonged.
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