The invention belongs to the technical field of helicopter hydraulic systems, and discloses a combined pressure accumulator with flow rate control, and a hydraulic brake system. The pressure accumulator can be applied to a helicopter hydraulic system with the pressure maintaining requirement, the integrated design of the pressure accumulator with the flow speed self-control function is adopted forthe first time, impact on the pressure accumulator due to the too high flow speed in the pressurizing or pressure supplementing process is avoided, and the operation stability of a rear-end executingmechanism in the pressurizing process is improved. The flow-limiting valve and the flow-limiting cut-off valve are arranged on the pressure supply pipeline between the pump source and the brake pressure accumulator in a matched mode, the flow use requirement of a brake system serving as a load end is met, and pressure supply of the pressure supply pipeline is cut off in time after hydraulic leakage of the pressure supply pipeline is caused by breakage, damage and the like of the pipeline or equipment between the pump source and the brake pressure accumulator. And normal work of the main hydraulic system is prevented from being influenced by continuous leakage of hydraulic oil, and the safety of the main hydraulic system adopting the power type brake hydraulic system is improved.

    本发明属于直升机液压系统技术领域,公开了一种具备流速控制的组合式蓄压器和液压刹车系统。可应用于具有保压要求的直升机液压系统,首次采用流速自控制的蓄压器一体化设计,避免了充压或补压时流速过高对蓄压器造成冲击,提高充压时后端执行机构运行平稳度。通过在泵源至刹车蓄压器之间供压管路上设置限流阀和限流切断阀,两者配合设置,既保证作为负载端的刹车系统流量使用需求,也在当其间管路或设备出现断裂、损坏等引起供压油路液压泄漏后及时切断供压管路供压,避免液压油继续泄漏而影响主液压系统正常工作,提升了采用动力式刹车液压系统的主液压系统的安全性。


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    Title :

    Combined pressure accumulator with flow rate control, and hydraulic brake system


    Additional title:

    一种具备流速控制的组合式蓄压器及液压刹车系统


    Contributors:
    LU BAOZHEN (author) / XU ZHEGUI (author) / HUANG SHENG (author) / XU FENG (author) / REN YONGLIANG (author) / YAN PENG (author)

    Publication date :

    2021-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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