HYDRAULIC TRANSMISSION Russian patent published in 1997 - IPC

FIELD: hydraulics. SUBSTANCE: shaft of actuating member is mounted in fixed housing. Motor has stator with internal gear rim linked with housing. Rotor with external gear rim rigidly connected with shaft is eccentrically located inside stator forming working chambers which are brought in communication with working medium supply and discharge passages through passages of end distributors. Connection of stator with fixed housing is effected by means of flange rigidly secured on housing. Flange is connected with outer surface of one distributor by tongued-and-grooved joint. Width of grooves exceeds that of projections by at least two eccentricities. Supply and discharge passages are made in one distributor. EFFECT: enhanced reliability. 2 cl, 2 dwg