Power plants – Pressure fluid source and motor – Methods of operation
Patent
1994-04-11
1995-07-25
Look, Edward K.
Power plants
Pressure fluid source and motor
Methods of operation
60448, F16D 3100, F16D 3102
Patent
active
054351316
ABSTRACT:
An apparatus and method for controlling a variable displacement motor of a hydrostatic transmission is provided. The apparatus includes an engine, and a hydraulic pump mechanically coupled to the engine. The variable hydraulic motor includes an output shaft. The apparatus monitors rotational speed of the output shaft. The apparatus and method control motor displacement and detect and/or predict the occurrence of an overspeed condition. The displacement of the motor is modified if an overspeed condition is predicted and/or detected.
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Hausman Dennis J.
Rector Stephen W.
Smith David P.
Ufheil Steven T.
Caterpillar Inc.
Look Edward K.
Nguyen Hoang
Yee James R.
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