Radial piston hydraulic engine

Details Radial piston hydraulic engine Radial piston hydraulic engine

F - Mech Eng,Light,Heat,Weapons

03

C

F03C 1/04 (2006.01) F01B 1/06 (2006.01) F03C 1/40 (2006.01)

Patent

CA 2327825

The invention concerns a radial piston hydraulic engine (10), which includes a rotated box section (11), with which box section (11) a cam ring (12) is connected. The radial piston hydraulic engine (10) includes a fixed non- rotary shaft (14), with which a cylinder body (15) in a fixed position is connected. The radial piston hydraulic engine includes a distributor (13), which is connected with the box section (11) and rotates together with it, whereby through channels located in the distributor a pressurised medium is conducted to pistons (16a1 , 16a2 ... ) of cylinders (P1, P2 ...) controlled by the distributing valve, that is, by distributor (13), and that at least some cylinders (P1, P2 ...) include in connection with themselves a shut-off valve (70a1, 70a2 ...) , which is used to make some pistons (16a1 , 16a2 ... ) inoperative. Shaft (14) includes in the same cylinder block (I) at least two control pressure channels (Y1, Y2) for the shut-off valves (70a1, 70a2) of its cylinder body (15), whereby by supplying pressure selectively into a channel (Y1 or Y2; Y, and Y2) it is possible to make certain cylinders (P1, P2 ...) inoperative by directing control pressure to the shut-off valves (70a1, 70a2, 70a3 ...).

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