首页>
外国专利>
A VARIABLE DISPLACEMENT VANE PUMP WITH A SLIDE GROOVE SEAL VENTED TO ATMOSPHERIC PRESSURE FOR PREVENTING FLUID FLOW BETWEEN A REGULATING CHAMBER AND A HIGH PRESSURE FLUID CHAMBER
A VARIABLE DISPLACEMENT VANE PUMP WITH A SLIDE GROOVE SEAL VENTED TO ATMOSPHERIC PRESSURE FOR PREVENTING FLUID FLOW BETWEEN A REGULATING CHAMBER AND A HIGH PRESSURE FLUID CHAMBER
展开▼
机译:带有大气压的滑槽密封的可变排量叶片泵,可防止调节腔和高压腔之间的流体流动
展开▼
页面导航
摘要
著录项
相似文献
摘要
A variable displacement vane pump comprises a pump body having inlet and outlet ports, a rotor driven by a drive shaft and co-axially aligned therewith, a plurality of radially extending vanes slidably disposed in the rotor, and a slide pivotally disposed on a pivot in the pump body and having a central axis eccentric to the axis of the rotor. A plurality of fluid chambers are defined by the rotor, vanes, and slide. A spring acts on the slide to urge the slide in one direction. A regulating chamber is configured as a semi-circular cylinder intermediate the pump body and an outer surface of the slide, wherein a pressure regulating valve pressurizes the regulating chamber to pivot the slide against the force of the spring to decrease the volume of the fluid chambers. The slide includes a slide channel formed in a face to channel fluid leakage from the fluid chambers away from the regulating chamber.
展开▼