Patent ID: 6029542
Filing Date: 2000-02-29
Classification: F16H,Y10T

Abstract:
A power-split gear, comprising a hydrostatic unit and a mechanical gear unit containing a summing gear and range gear, said hydrostatic unit and said mechanical gear unit being accommodated in a common case with a cover, the mechanical gear unit being arranged on the case cover and being capable of being inserted as a closed subassembly into the case, wherein(a) a distributor shaft coupled to an engine is mounted in the case, a gearwheel for driving the hydrostatic unit and the mechanical gear unit being in each case arranged fixedly in terms of rotation on said distributor shaft;(b) the hydrostatic unit is fastened to the inside of the cover and has a hydrostatic input gearwheel and a hydrostatic output gearwheel, the former meshing with the corresponding gearwheel on the distributor shaft fixed to the case and the latter meshing with an input gearwheel of the mechanical gear unit;(c) the cover has, on an inside surface, a fitting face which cooperates with at least one counterface of a bearing pedestal of the mechanical gear unit, fluid ducts provided in the cover opening out in the fitting face; and(d) control elements connected to the fluid ducts are arranged on an outer face of the cover.