Patent ID: 7121090
Filing Date: 2006-10-17
Classification: B60K,B60Y,F16D,F16H

Abstract:
1. An axle driving apparatus, comprising: a common housing serving as a fluid sump; a variable displacement hydraulic pump disposed in said housing, said hydraulic pump having a movable swash plate; a hydraulic actuator for tilt-operating said movable swash plate, the hydraulic actuator including a manually controlled control valve and a hydraulic cylinder, the hydraulic cylinder being combined with said control valve so that a movable portion of said hydraulic cylinder is controlled in location by said control valve; a hydraulic motor disposed in said housing; a center section provided therein with a closed fluid circuit through which said hydraulic pump and motor are mutually connected; an axle disposed in said housing and driven by said hydraulic motor; an input shaft, wherein said input shaft is supported by said housing and disposed perpendicular to said axle, and wherein said hydraulic pump engages with said input shaft; and a charge pump for supplying said hydraulic actuator with fluid from said fluid sump, wherein said charge pump is disposed opposite to said hydraulic pump with respect to said center section, and wherein said charge pump engages with an end of said input shaft, wherein said center section forms a portion of both said hydraulic cylinder and said control valve.