Axial piston rotary hydraulic machines

Details Axial piston rotary hydraulic machines Axial piston rotary hydraulic machines

1977-01-10

1979-03-06

Freeh, William L.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Control valve seating surface contact maintained by fluid...

F01B 1306

Patent

active

041424506

ABSTRACT:
A rotary hydraulic pump or motor of the axial piston type, including a rotary cylinder block (17) formed with cylinders containing pistons (15). The block is formed with ports (25) which co-operate with ports (26, 27) in a distributor plate or valve plate (19). The cylinder block is free to move in an axial direction, but is prevented from tilting. The valve plate (19) is fixed in an axial direction, but is allowed to tilt by means of a spherical abutment (36). Adjustable sleeves (28) accommodate the movement of the valve plate and convey the fluid to and from the cylinders (16) in the block.

REFERENCES:
patent: 2234110 (1942-05-01), Vickers
patent: 2284109 (1942-05-01), Vickers
patent: 3059432 (1962-10-01), Thoma
patent: 3079870 (1963-03-01), Thoma
patent: 3188972 (1965-06-01), Thoma
patent: 3255673 (1966-06-01), Thoma

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