Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1983-03-08
1985-02-26
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
418102, F01C 1113, F01C 2102, F01C 2104, F03C 208
Patent
active
045015368
ABSTRACT:
A compact hydraulic motor 10 in which a pressurized sleeve bearing 20 is coaxial with a commutator 16, all positioned in the output housing 14. The commutator housing provides fluids to a rotary valve plate 48 and to chambers 52 formed between rotating inner member 30 and orbiting outer member 32. The sleeve bearing 20 is pressurized with fluid from the gear set 30, 32 and is in fluid communication with a rear needle bearing 24. The seals are protected from overpressurization through channels 25 and 46 and pressurization valves. In an alternate embodiment of the invention, dual gear sets 80, 82, and 81, 83, (FIG. 7) are positioned within a housing for either series or parallel operation. Fluid directed to the two gear sets by a manifold 112 can run the gear sets in parallel or series in order to provide either high speed low torque or low speed high torque operation.
REFERENCES:
patent: 2965040 (1960-12-01), Eisenberg
patent: 3453966 (1969-07-01), Eddy
patent: 3547565 (1970-12-01), Eddy
patent: 3910732 (1975-10-01), Lustzig
patent: 3944378 (1976-03-01), McDermott
patent: 4050474 (1977-09-01), Morgan
patent: 4139335 (1979-02-01), Wusthof et al.
patent: 4264288 (1981-04-01), Wusthof et al.
patent: 4380420 (1983-04-01), Wusthof et al.
patent: 4411607 (1983-10-01), Wusthof et al.
Vrablik John J.
W. H. Nichols Company
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