一种双向液压齿轮泵
By incorporating a combination of irregular grooves and leaf springs in the bidirectional hydraulic gear pump, the phase angle of the back pressure groove is optimized, solving the problems of slow start-up and poor sealing, and achieving rapid start-up and efficient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 浙江欧力德精密科技有限公司
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing bidirectional gear pumps suffer from slow pressure build-up during startup and poor sealing, resulting in low startup efficiency.
A bidirectional hydraulic gear pump was designed. By setting irregular grooves and leaf springs on the crescent-shaped main plate and the crescent-shaped secondary plate, static sealing is achieved by utilizing the preload of the leaf springs. During operation, the seal is maintained by introducing high-pressure oil. Combined with the optimized back pressure groove and the phase angle of the sealing area, the isolation between the high-pressure area and the low-pressure area is ensured, reducing noise and improving volumetric efficiency.
This technology enables the gear pump to draw in oil more quickly during startup, reach the target pressure, improve startup efficiency, maintain a high-pressure seal during operation, reduce noise and internal leakage, and improve volumetric efficiency.
Smart Images
Figure CN120990868B_ABST