Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive
Patent
1996-10-21
1998-04-07
Ta, Khoi Q.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
475295, 475205, F16H 2922
Patent
active
057357676
ABSTRACT:
The two-speed compounder of the present invention is adapted to be mounted to an existing transmission and includes an input adapted to be driven by the transmission output shaft, an output adapted to be connected to the vehicle's driveline, a planetary gearset operably interconnecting the input to the output, and a power transfer mechanism for selectively transferring power from the input through the planetary gearset to the output at either of the direct speed ratio or the reduced speed ratio. The planetary gearset has a first gear component driven by the input, a second gear component, and a third gear component rotatably interconnecting the first and second gear components and driving the output. When it is desired to establish the direct drive speed ratio, the first and third gear components of planetary gearset are coupled together for preventing relative rotation therebetween. When it is desired to establish the underdrive speed ratio, the second gear component is grounded such that the third gear component is driven at a reduced speed relative to the first gear component. By shifting between the direct and underdrive speed ratios and additional gear ratio can be added to an existing multispeed transmission.
REFERENCES:
patent: 4528872 (1985-07-01), Umemoto et al.
patent: 4567788 (1986-02-01), Miller
patent: 4676123 (1987-06-01), Kubo et al.
patent: 4798103 (1989-01-01), Eastman et al.
patent: 5397282 (1995-03-01), Weidman
patent: 5466195 (1995-11-01), Nogle et al.
patent: 5503603 (1996-04-01), Adam et al.
New Venture Gear Inc.
Ta Khoi Q.
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