一种用于液压产品的集排油装置和液压系统
By designing an automatic and tool-operated oil drain block in the hydraulic actuator cavity and using a check valve to achieve controlled oil discharge, the problem of uncontrolled oil leakage is solved, improving the safety of the hydraulic system and flight safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN FLIGHT SELF CONTROL INST OF AVIC
- Filing Date
- 2023-12-26
- Publication Date
- 2026-07-17
AI Technical Summary
The existing hydraulic actuators have uncontrolled oil leakage in the actuator cavity, which makes it impossible to detect the leakage problem in time, endangering flight safety. In addition, conventional treatment methods increase the outer structure and space of the actuator cylinder.
Design an oil collection and drainage device, including an automatic oil drainage baffle and a tool oil drainage baffle. The device uses a one-way valve to automatically or periodically drain the oil in the cavity when the oil pressure exceeds the opening pressure. Oil leakage is eliminated by installing a baffle and a seal in a window designed on the side wall of the actuator cavity.
It achieves controlled collection and drainage of oil in the actuator cavity, avoids uncontrolled leakage, improves the safety of the hydraulic system and flight safety, and does not increase the product's external dimensions or oil passage space.
Smart Images

Figure CN117847044B_ABST