齿轮泵装置

By introducing an active venting channel and a guide plate module into the gear pump, the gear tooth spacing is dynamically adjusted, which solves the problem of efficiency reduction caused by leakage jet at the tooth tip and improves the operating efficiency of the gear pump.

CN121382631BActive Publication Date: 2026-07-17ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511703704.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-07-17
Estimated Expiration
2045-11-19

AI Technical Summary

Technical Problem

Leakage jets caused by tooth tip clearance in meshing gear pumps lead to a significant decrease in operating efficiency, especially causing instability at the fluid dynamics level, resulting in energy dissipation and reduced efficiency.

Method used

An active venting channel and a guide plate module are introduced into the gear pump unit. The distance between the guide plate module and the gear teeth is adjusted by an elastic reset component to dynamically respond to changes in pressure difference, reduce reverse leakage jets, increase flow damping, and improve operating efficiency.

Benefits of technology

It effectively reduces reverse leakage jets from the tooth tip clearance, improves the operating efficiency of the gear pump, and enhances the energy utilization rate of fluid transport.

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Abstract

本发明公开一种齿轮泵装置,包括泵壳体、泵送模组和导流板模组,泵送模组包括驱动组件以及置于泵壳体内的泵送轮组件,泵送轮组件中存在至少一个泵送齿轮的轮齿上开设有主动泄流流道,主动泄流流道的高压入口和低压出口分设于轮齿相对设置的两个齿面上,导流板模组安装于轮齿的低压侧,并适用于高压入口和低压出口之间的压差调节与轮齿的低压侧的间距,使得自低压出口流出的射流沿导流板模组和轮齿的低压侧之间的间隙朝齿顶间隙流动,以可对泄漏射流进行扰动,将导流板模组与轮齿的低压侧的间距设为适用于高压入口和低压出口之间的压差可调设置,可确保间隙动态响应压差变化,达到减少齿顶间隙的泄漏射流、以及提升运行效率的目的。
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Citation Information

Patent Citations

  • Single pump cover type external gear pump with tooth root V-shaped unloading holes

    CN107061265A

  • Gear pump

    CN119508217A