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
1995-04-06
1997-09-16
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...
475 80, 475 82, 475 72, F16H 4704, F16H 4702
Patent
active
056674520
ABSTRACT:
A split torque transmission includes a hydrostatic transmission and a mechanical transmission both being driven by an engine. The output of the hydrostatic transmission and the mechanical transmission are both selectively coupled to a machine through a final output shaft. The mechanical transmission incudes a full range high forward and reverse mechanism selectively coupled to a planetary arrangement. The planetary arrangement sums the speed of the hydrostatic transmission with the full range high forward and reverse mechanism. This arrangement provides a smooth and continuous change in the speed of the machine in both the forward and reverse directions throughout its entire speed range which is identical in both directions of travel.
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Caterpillar Inc.
Glastetter Calvin E.
Jensen Nathan O.
Marmor Charles A.
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