Borgwarner Inc.

Other

Slw Automotive Inc.

Dennis N Koenig

Douglas G Hunter

Fuzheng Hu

Matthew J Jannausch

Douglas Hunter

An arrangement of a variable capacity vane pump for an automobile is provided that includes a pump housing having an outlet and inlet. A pump control ring is provided having a cavity. The control ring is positioned within the housing to move about a pivot. A vane pump rotor is positioned within the cavity of the pump control ring. A position of the pump control ring determines an offset between a center of the pump control ring cavity and an axis of rotation of the vane pump rotor. Vanes are provided that are driven by the rotor and which engage an interior surface of the pump control ring. The vanes and the engaged surface defining working fluid chambers. A first control chamber is provided. The first control chamber is exposed to a first side of the pivot between the pump housing and the outer surface of the pump control ring. The first control chamber is operable to receive pressurized fluid to create a force to move the pump control ring to reduce a volumetric capacity of the pump. A second control chamber, positioned between the pump inlet and outlet is provided that provides a hydraulic force to increase the volumetric capacity of the pump.

Variable displacement vane pump with improved pressure control and range

A unified variable displacement pump having a housing which includes a fluid pump and a vacuum pump. A portion of the housing is part of the fluid pump, and a portion of the housing is part of the vacuum pump. A shaft extends through the fluid pump and the vacuum pump. A vacuum pump rotor is formed as part of the shaft, and a vane pump rotor is mounted to the shaft such that when the shaft rotates, the vacuum pump rotor and the vane pump rotor rotate, causing the fluid pump to pump fluid and the vacuum pump to generate a vacuum. The vacuum pump and fluid pump are combined into a single component driven by a single shaft.

Unified variable displacement oil pump and vacuum pump

A control system for a variable displacement pump. The control system is operably associated with an engine control unit for passively or actively controlling the output of the pump in response to signals from the engine control unit.

Variable displacement pump and control therefor

Variable displacement pump and control therefore for supplying lubricant to an engine

Growing community of inventors

Hartland, MI, United States of America

Dennis N Koenig