一种带有溢流通道的定压阀及一种燃油系统
By introducing an overflow channel into the constant pressure valve, the problem of damage to the existing constant pressure valve device when the outlet pressure suddenly increases is solved, and the stability of the pressure difference between constant pressure oil and low pressure oil and the protection of the device are achieved.
CN117662550BActive Publication Date: 2026-07-17XIAN AERO ENGINE CONTROLS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN AERO ENGINE CONTROLS
- Filing Date
- 2023-11-23
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing constant pressure valve devices cannot effectively regulate when the outlet pressure suddenly increases, which may lead to damage to the device.
Method used
Design a constant pressure valve with an overflow channel. By introducing an overflow channel into the valve structure, the pressure difference between constant pressure oil and low pressure oil is kept stable, and overflow protection is provided when the outlet pressure is too high.
Benefits of technology
This ensures that the outlet pressure remains constant despite changes in inlet pressure and low-pressure oil pressure, preventing damage to the device and ensuring stable system operation.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117662550B_ABST
Abstract
本发明属于液压系统技术领域，公开了一种带有溢流通道的定压阀，包括：衬套、活门、弹簧座、弹簧、帽盖、压紧螺母；活门设置在衬套内；衬套中部设有一组进油口，进油口靠近弹簧座一侧设有一组出油口，进油口另一侧设有一组回油口；活门沿轴向依次分为小径段、过渡段和大径段；活门沿轴向设有通孔；帽盖为一端开口的筒状，弹簧设置在帽盖内且一端与帽盖底部连接，弹簧另一端与所述弹簧座连接，所述弹簧座为凸型柱体，弹簧座的台阶面与衬套端面配合用于限位，压紧螺母将帽盖和衬套沿轴向压紧；活门的大径段尾部套设在弹簧座与衬套之间；活门在初始安装位置通过过渡段将进油口和出油口连通，而封闭回油口。
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