HYDRAULIC MOTOR Russian patent published in 2012 - IPC F03C2/30 

FIELD: engines and pumps.

SUBSTANCE: hydraulic motor includes housing 1 with cover plates, inside which piston 2 is installed so that working chambers are formed. Piston 2 performs simultaneous oscillating and back-and-forth movements. The above movements are converted to rotation of output shaft 4 owing to eccentric 3 rigidly attached to output shaft 4 and having the possibility of free rotation inside piston 2. Working fluid is supplied through the channel in output shaft 4 to working cavity of eccentric 3 distributing the fluid supplied to the working chambers, and pressure release from working volumes of hydraulic motor is performed through empty cavity of eccentric 3.

EFFECT: simpler design of hydraulic motor and higher operating reliability.

2 cl, 4 dwg