Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Patent
1998-09-04
2000-03-07
Marmor, Charles A
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
475219, 475297, F16H 4704, F16H 3702, F16H 344
Patent
active
060333324
ABSTRACT:
The invention comprises an all gear mechanism for a continuously variable transmission that provides a wide range of output speeds and torque. The basic elements of the transmission are two planetary gear sets used as a power divider and a power combiner along with a one-way clutch and a hydraulic pump and hydraulic pump control devices. The controlling devices provide a continuously variable force against the low rpm power path. A high rpm gear train and a low rpm gear train are provided to vary the output. Appropriate sized gears are used to produce the desired overall output ratio. The output ratio is determined by engine capability or by the operator.
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Marmor Charles A
Pang Roger
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