HYDRAULIC DIFFERENTIAL TRANSMISSION Russian patent published in 1997 - IPC

FIELD: hydraulic machinery engineering constant speed hydraulic drives used in power supply systems of flying vehicles for generation of alternating current of stable frequency. SUBSTANCE: input shaft of this transmission is connected with engine operating at variable speed and output shaft is connected with generator whose rotational speed is maintained constant by means of speed control system. Differentiating of power transmitted from input shaft to output shaft is effected by means of hydraulic differentiating transmission with two liquid passages. EFFECT: enhanced efficiency. 5 dwg