A variable displacement vane pump and a power steering can secure a discharge flow rate when a steering wheel is turned, and restrict the discharge flow rate when the steering wheel is not turned. In the variable displacement vane pump and power steering system, a bypass line is formed. The bypass line causes a hydraulic fluid in a high pressure chamber of a control valve, which controls an eccentricity of a cam ring, to flow directly to a low pressure chamber side of the control valve. The hydraulic fluid flows directly to the low pressure chamber side of the control valve when the steering wheel is turned.


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    Title :

    Variable displacement vane pump and power steering system


    Contributors:

    Publication date :

    2017-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F03C Verdrängerkraftmaschinen mit Flüssigkeitsantrieb , POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS / B62D MOTOR VEHICLES , Motorfahrzeuge / F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS , Rotationskolben- oder Schwenkkolbenmaschinen [Kraft- und Arbeitsmaschinen] für Flüssigkeiten



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    UCHIDA YUKIO / IMANAGA HIROKI / MURAMATSU SATOSHI | European Patent Office | 2015

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    Internal Force Analysis of a Variable Displacement Vane Pump

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