HYDROSTATIC TRANSMISSION Russian patent published in 1996 - IPC

FIELD: mechanical engineering; transport. SUBSTANCE: hydrostatic transmission has axial-piston hydraulic motor 2 and hydraulic pump 1, delivery and return pipeline, 3 and 4, repsectively, expansion tank 5 and makeup pump 6. Hydraulic motor 2 and hydraulic pump 1 have fixed housing 9, distributing mechanism 10, and draining device, each piston 12 being movably installed in rotor cylinders and hinge-connected with rotating part 16 of inclined plate whose stationary part is hinge-connected housing 9 and is furnished with controlled tie-rod with spring brace. Transmission has additional pistons 13 embracing the main piston and arranged in rotor cylinders for axial travel, with spring installed between pistons and movable inter connection of pistons. EFFECT: enhanced reliability of operation. 4 dwg