Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Patent
1975-02-07
1977-05-10
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
60456, 60459, 60468, 60484, F15B 1116, F15B 2104
Patent
active
040220214
ABSTRACT:
A hydraulic motor maintains its speed substantially constant in spite of changes of hydraulic fluid pressure and flow. The motor comprises a rotor to which hydraulic fluid is delivered through a nozzle arrangement from an inlet port and exhausted from the rotor to an exit port. A by-pass duct interconnects the passageway for the incoming fluid with the passageway for the outgoing fluid, to by-pass the rotor. A spring-loaded piston is situated in relation to the entrance to the by-pass duct so that when the incoming fluid pressure is relatively high the piston is retracted to expose the by-pass duct to permit some of the hydraulic fluid to by-pass the rotor, and when the fluid pressure and flow rate decrease, the spring moves the piston to close up the entrance to the by-pass duct to reduce or even stop the flow through the by-pass. A manual diverter valve is situated to divert incoming fluid away from the rotor so that all the fluid is diverted directly out of the motor housing.
REFERENCES:
patent: 2102865 (1937-12-01), Vickers
patent: 2329709 (1943-09-01), Fischer
patent: 2354634 (1944-07-01), Griswold
patent: 2665704 (1954-01-01), Kanuch
patent: 3210939 (1965-10-01), Nuss
patent: 3248913 (1966-05-01), Brundage
patent: 3664129 (1972-05-01), Schwab
Angus D. Gordon
Geoghegan Edgar W.
Mon Donald D.
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