Compact high torque hydraulic motors

Details Compact high torque hydraulic motors Compact high torque hydraulic motors

1984-07-23

1985-10-08

Freeh, William L.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F01C 1113

Patent

active

045457484

ABSTRACT:
A rotary fluid displacing pump or motor in which the inner gear orbits about a fixed motor shaft axis within an outer gear and the inwardly extending gear teeth of the outer member have non-sealing portions not in contact with corresponding portions on the outwardly extending teeth of the inner gear. Variable volume chambers formed between the gear teeth are fluidly coupled to inlet and outlet fluid passageways at appropriately timed intervals by a rotary disc having radially spaced ports which rotate past inlet and outlet ports on a fixed commutator. The rotary disc abuts a planar face of the orbiting inner gear and rotates about the fixed central axis.

REFERENCES:
patent: 3289542 (1966-12-01), Fikse
patent: 3289601 (1966-12-01), Compton
patent: 3364907 (1968-01-01), Jearson
patent: 3453966 (1969-07-01), Eddy
patent: 3531225 (1970-09-01), Woodling
patent: 3561893 (1971-02-01), Baatrup
patent: 3592233 (1971-07-01), Woodling
patent: 3623829 (1971-11-01), Shaw et al.
patent: 3887308 (1975-06-01), Liebert
patent: 4139335 (1979-02-01), Wusthof et al.
patent: 4426199 (1984-01-01), Wusthof et al.

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