Hydromechanical drive
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United States of America Patent
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-
May 28, 1991
Grant Date -
N/A
app pub date -
Dec 16, 1988
filing date -
Dec 16, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydromechanical drive wherein a prime mover drives an input shaft which, in turn, can drive a coaxial output shaft by way of a clutch or transmission having one or more axial piston pumps. The pressure and/or rate of fluid flow in the pump or pumps is adjustable by one or more valves or by one or more tiltable wobble plates in response to signals from one or more adjusting devices which receive signals from an electronic control circuit. The latter further receives signals from tachometer generators which monitor the RPM of the input and output shafts, from a gauge which monitors the pressure in the pump or pumps, from the valve or valves, or from the adjusting devices(s) for the tiltable wobble plate(s).
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