Power plants – Pressure fluid source and motor – Condition responsive control of or by input to input pump...
Patent
1974-12-09
1976-04-13
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
Condition responsive control of or by input to input pump...
60445, 60449, 60469, 60906, 60327, 60428, 214 833, F16H 3946
Patent
active
RE0287652
ABSTRACT:
An apparatus and method for operating an auxiliary hydraulic load at low noise levels. A pump having a capacity which is sufficiently large to supply the load with the necessary volume of hydraulic fluid at relatively low pump speeds is driven by an engine operating at a speed near its idling speed. Throttle control means control the fuel supply to the engine at a level sufficient to drive the pump while maintaining the engine speed near its idling speed. When the engine speed is increased to a predetermined level in excess of its idling speed, means are provided to maintain the output from the pump at or below a predetermined flow rate to not overload the pump means or the auxiliary load. The pump may include a variable displacement pump or a plurality of fixed displacement pumps with means to vary the pump output in response to the pressure demand from the auxiliary load to maintain the torque input requirements for the pump below a predetermined level. The throttle control means may be actuated in response to the pressure demands of the auxiliary load to vary the torque from the engine in response to the torque input required for operation of the pump while the engine is operating at a speed near its idling speed.
REFERENCES:
patent: 2892311 (1959-06-01), Van Gerpen
patent: 2956586 (1960-10-01), Zeigler et al.
patent: 3033306 (1962-05-01), Hallene et al.
patent: 3053043 (1962-09-01), Knowler
patent: 3104528 (1963-09-01), Horig
patent: 3134611 (1964-05-01), Iversen
patent: 3323305 (1967-06-01), Klees
patent: 3459131 (1969-08-01), Senf
patent: 3543508 (1970-12-01), Schwab
patent: 3612202 (1971-10-01), Moon et al.
Geoghegan Edgar W.
Roston Ellsworth R.
Sargent Industries, Inc.
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