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.
Variable displacement vane pump and power steering system
2017-07-25
Patent
Electronic Resource
English
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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|Development of the variable displacement vane pump for the automotive power steering system
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|Development of the Variable Displacement Vane Pump for the Automotive Power Steering System
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|Internal Force Analysis of a Variable Displacement Vane Pump
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