The parallel overflow pressure-limiting valve comprises a plunger type pressure-limiting valve and a ball type safety valve, valve bodies of the plunger type pressure-limiting valve and the ball type safety valve are both integrated on a retarder shell, and the plunger type pressure-limiting valve and the ball type safety valve are communicated with a retarder working cavity through oil channels to form a parallel structure; and the plunger type pressure limiting valve and the ball type safety valve are respectively communicated with the oil storage cavity through an oil drainage port arranged on the valve body. Two-stage pressure limiting is adopted, the first stage is the plunger type pressure limiting valve, the pressure limiting precision of the structure is high, but the flow is limited to a certain degree, when the pressure of an oil supply pump or a system is too high due to the fact that the vehicle speed is too high during braking, the flow is large, the system pressure rises continuously, under the normal condition, the plunger type pressure limiting valve works firstly, and the second stage is the ball type safety valve; after the system pressure continuously rises to a certain value, the ball type safety valve is opened, and the pressure is controlled within the design range.

    本发明公开了一种液力缓速器并联式溢流限压阀,包括柱塞式限压阀、球式安全阀,柱塞式限压阀及球式安全阀的阀体均集成在缓速器壳体上,柱塞式限压阀及球式安全阀分别通过油道与缓速器工作腔联通,形成并联式结构;柱塞式限压阀及球式安全阀分别通过阀体上设置的泄油口与储油腔联通。本发明采用两级限压,一级为柱塞式限压阀,该类结构限压精度较高,但流量受一定限制,当供油泵或系统压力因制动时车速过高导致流量很大,导致系统压力持续上升,通常情况下柱塞式限压阀先起作用,二级为球式安全阀,系统压力持续上升到一定值后球式安全阀打开,使压力控制在设计范围内。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Parallel overflow pressure-limiting valve of hydraulic retarder


    Weitere Titelangaben:

    一种液力缓速器并联式溢流限压阀


    Beteiligte:
    WANG TONG (Autor:in) / GAO ZHIZHENG (Autor:in) / YIN YAO (Autor:in) / YU LEI (Autor:in)

    Erscheinungsdatum :

    2023-08-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16K VALVES , Ventile



    Tandem type overflow pressure limiting valve of hydraulic retarder

    GAO ZHIZHENG / WANG TONG / YU LEI et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Hydraulic retarder driven valve control system

    GAO ZHIZHENG / WANG TONG / YU LEI et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    HYDRAULIC RETARDER

    KIM JONG WON | Europäisches Patentamt | 2023

    Freier Zugriff

    Hydraulic retarder

    XU DAJIANG | Europäisches Patentamt | 2020

    Freier Zugriff

    HYDRAULIC RETARDER

    Europäisches Patentamt | 2023

    Freier Zugriff