A water hydraulic motor with adaptive static pressure balance eccentric flow distribution device
By using an adaptive hydrostatic balance eccentric distribution device and a hydraulic disc spring composite bidirectional tensioning structure, the problem of sealing failure and wear in traditional water hydraulic motors under high pressure and low speed conditions is solved. This achieves zero-gap floating seal and high-efficiency sealing on the distribution plate end face, improving the reliability and lifespan of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUZHOU COLLEGE OF INDAL TECH
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
AI Technical Summary
When traditional water-hydraulic motors use concentric distribution plates in high-pressure, low-viscosity environments, they face the problems of high contact specific pressure and low sliding speed, which causes the distribution plate to tilt slightly, resulting in seal failure and premature wear, affecting reliability and long-term service capability.
An adaptive hydrostatic balance eccentric distribution device is adopted, combined with a hydraulic and disc spring composite bidirectional tensioning structure, to achieve bidirectional zero-gap floating seal on the end face of the distribution plate. Through the cooperation of high-pressure selection component and bidirectional elastic pre-tightening component, the axial thrust is adjusted in real time to counteract the slight tilt of the eccentric distribution plate.
It effectively reduces media leakage, extends component life, improves working efficiency, ensures the continuity of the micro water film on the distribution surface, and enhances the overall operational reliability and volumetric efficiency.
Smart Images

Figure CN122407448A_ABST