GEAR HYDRAULIC MACHINE Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: sliding bearings are installed in housing and cover. External gears with trunnions are arranged in relatively intersecting bores of housing. Trunnions are installed in sliding bearings of housing and cover. Cover is made of material with lower volumetric expansion coefficient than material of housing. Distance between axes of bearings in cover is greater than distance between axes of bearings in housing by difference in increments in linear expansions of housing and cover along plane passing through axes of bearings. EFFECT: enlarged operating capabilities. 2 dwg