Abstract: In at least one embodiment the present invention provides a vacuum pump assembly having a vacuum pump body defining a cylindrical internal pump chamber housing a rotary vane rotatable about an axis radially removed from the center of the cylindrical internal pump chamber, an inlet, at least one outlet, a rotary power source abutting the vacuum pump body and having a proximal surface fluidly communicating with the internal pump chamber by way of the at least one outlet; the rotary power source having a rotating shaft operably connected to the rotary vane, and an electronics housing positioned adjacent the vacuum pump body such that as the rotary vane is rotated a first abbreviated crescent shaped working space is defined in communication with the inlet and as the rotary vane continues to rotate a second abbreviated crescent shaped working space is defined in communication with the at least one outlet.

Abstract: A high performance gear type oil pump for an internal combustion engine which has drive and driven gears which are, on one common side of the gears, respectively supported from the housing by a drive shaft and an idler shaft. In order to avoid cantilevering of the gears when generating pressurized oil, the other common side of the gears are each rotatable mounted on stub axles or pins which themselves are fixedly attached to the housing. In order to minimize wear, oil under pressure is supplied to the bearing surfaces of stub axles or pins which extend interiorly of the gears and also to the bearing surfaces of the housing which faces the common side of the gears where the stub axles are located, through oil supply passageways in the stub axles or pins.

Abstract: A high performance gear type oil pump for an internal combustion engine which has drive and driven gears which are, on one common side of the gears, respectively supported from the housing by a drive shaft and an idler shaft. In order to avoid cantilevering of the gears when generating pressurized oil, the other common side of the gears are each rotatable mounted on stub axles or pins which themselves are fixedly attached to the housing. In order to minimize wear, oil under pressure is supplied to the bearing surfaces of stub axles or pins which extend interiorly of the gears and also to the bearing surfaces of the housing which faces the common side of the gears where the stub axles are located, through oil supply passageways in the stub axles or pins.