ROTATION PISTON DEVICE, STEERING LINKAGE OF WHEEL AND ROTARY WHEEL DRIVE WITH ROTATION-PISTON MACHINE Russian patent published in 2011 - IPC F04C9/00 F01C9/00 B62D5/06 

FIELD: machine building.

SUBSTANCE: rotation-piston machine has at least one circular channel 1 bent along at least partial arc of circumference, wherein there is movably arranged piston 2 in fluid medium transferring motion; medium enters connection 3 or 4 for fluid medium and flows out through another connection 4 or 3 for fluid medium. By means of lever 5 piston 2 is connected with rotating element arranged with its axis coaxial concentric relative to arc of circumference. Lever 5 is led to the rotating element through a packed gap made in a wall of channel 1 in the direction of piston 2. Packing devices preventing leaks of fluid medium are inserted in a gap area between lever 5 and neighbour sections of the wall on both sides. Lever 5 on one side and neighbour sections of the wall of channel 2 on both sides of the gap are equipped with engaging complementary retaining structures, holding force of which is directed against gap opening.

EFFECT: stable structure facilitating transfer of high torque.

19 cl, 10 dwg