Fluid-powered stepping motor

Details Fluid-powered stepping motor Fluid-powered stepping motor

1976-08-17

1978-01-17

Freeh, William L.

Motors: expansible chamber type

Independently operated timer, delay, pattern or cyclic control

Of independently movable working members

91491, F15B 2102, F01B 106

Patent

active

040685608

ABSTRACT:
A hydraulic-powered motor for stepwise operation has a plurality of radial pistons in a rotatable cylinder block, the pistons engaging a cam track having a number of indentations which is different from the number of the pistons. Electrically operated valves are provided and are energizable in sequence to apply pressure pulses to the pistons to cause stepwise rotation of the cylinder block. Detent means may be provided to prevent rotation of the cylinder block in the absence of a pressure pulse to any one of the pistons.

REFERENCES:
patent: 2101829 (1937-12-01), Benedek
patent: 3075504 (1963-01-01), Vogel
patent: 3464316 (1969-09-01), Orloff
patent: 3599536 (1971-08-01), Myers
patent: 3661059 (1972-05-01), Hunter et al.
patent: 3796525 (1974-03-01), Kilmer
patent: 3848515 (1974-11-01), Gardineer
patent: 3985065 (1976-10-01), Nonnenmacher
patent: 4004498 (1977-01-01), Aoki

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