Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Single impeller-turbine type fluid circuit divides or...
Patent
1988-10-24
1991-07-09
Wright, Dirk
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Single impeller-turbine type fluid circuit divides or...
475 73, F16H 4708
Patent
active
050301780
ABSTRACT:
The power dividing stepless speed change transmission system has no less than two power dividing zero points of different nonzero finite values whereat the drives is in the same direction. The system, to a great extent, reduces the branch power, thereby improving the efficiency of the power dividing transmission system expanding speed change range in high efficiency thereof. Examples listed comprise a system with a speed regulating device having two adjusted parts, a system with wheel train, a system with the wheel trains serially connected, a system of serially connected power dividing system and systems separately using a mechanical stepless speed change device, a hydraulic transmission device and a hydrodynamic torque converter as speed regulating devices.
REFERENCES:
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patent: 2924992 (1960-02-01), Edsall
patent: 3078739 (1963-02-01), Weinrich
patent: 3435707 (1969-04-01), De Julian
patent: 3924489 (1975-12-01), Yasuda
patent: 3982448 (1976-09-01), Polak et al.
patent: 4120213 (1978-10-01), Levy
patent: 4819509 (1989-04-01), Rohne et al.
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