Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Patent
1978-01-03
1979-09-25
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
With control means for structure storing work driving energy
60494, 60DIG2, 7452C, 198855, F15B 102, F15B 1104, F15B 13044
Patent
active
041686110
ABSTRACT:
A system for controlling the acceleration and/or deceleration of a mechanical power drive having a rotatable power output element and a rotatable reaction element with a hydraulic or pneumatic brake mechanism connected thereto, in which a motor drive pump or other pressure creating device is connected by a fluid pressure line to the brake mechanism, and a bleed line with an electrically controlled valve therein is connected to the fluid pressure line for relieving the pressure delivered by the pump to the brake mechanism. An electrical system responsive to the rotational speed of the output element of the power drive controls the pressure creating means to control the acceleration and/or deceleration rate of the output element. An accumulator and a pressure responsive relief valve are preferably included in the system to assist in regulating the pressure delivered to the brake mechanism, and a dump valve and overload control device are normally included in the system.
REFERENCES:
patent: 3724720 (1973-04-01), Bullivant
patent: 4047452 (1977-09-01), Eddy
Meredith Richard L.
Woyton Joseph T.
Geoghegan Edgar W.
Hobbs M. A.
Reliance Electric Company
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