一种密封性好的农机发动机气门组

By adjusting the mechanism and precisely adjusting the spring force, the problem of decreased valve assembly sealing in agricultural machinery engines was solved, achieving efficient valve assembly sealing and improving engine performance.

CN224515250UActive Publication Date: 2026-07-17DELONG VALVE MFG CO LTD MEITAN COUNTY GUIZHOU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DELONG VALVE MFG CO LTD MEITAN COUNTY GUIZHOU
Filing Date
2025-09-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing agricultural machinery engine valve assemblies suffer from reduced sealing performance due to spring fatigue after prolonged use, failing to effectively ensure the engagement of the valve and valve seat, resulting in air leakage.

Method used

An adjustment mechanism is adopted, including components such as a base, hollow shaft, outer spring, inner spring, sealing seat, and pressure sensor. By adjusting the movement of the base and the deformation of the spring, the sealing between the valve body and the valve seat is ensured. Combined with the meshing of worm gear, worm wheel, and gear, the spring force can be precisely adjusted.

Benefits of technology

It improves the sealing performance of the valve assembly, avoids gaps, extends the service life of the valve assembly, and improves the combustion efficiency and power output of the engine.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224515250U_ABST
    Figure CN224515250U_ABST
Patent Text Reader

Abstract

本实用新型涉及农机发动机技术领域,且公开了一种密封性好的农机发动机气门组,包括气缸盖,还包括:调节机构、气门主体、弹簧座、外弹簧、气门座、内弹簧和气门导管,所述空心轴的侧面螺纹连接有底座,所述底座的顶端与外弹簧的底端活动连接,所述底座的顶端与内弹簧的底端活动连接,所述内弹簧的顶端与弹簧座的底端活动连接,所述外弹簧的顶端与弹簧座的底端活动连接;本实用新型通过根据需求转动底座通过螺纹使底座沿空心轴上下移动,使外弹簧和内弹簧保持合适形变量,产生足够弹性带动气门主体向上,使密封座始终与气门座啮合避免出现缝隙,有利于确保气门组的密封性同时,避免,气门主体对气门座压力过大造成损坏。
Need to check novelty before this filing date? Find Prior Art