Planetary gear transmission systems or components – Nonplanetary variable speed or direction transmission... – Nonplanetary transmission is friction gearing
Patent
1999-05-06
2000-05-09
Ta, Khoi Q.
Planetary gear transmission systems or components
Nonplanetary variable speed or direction transmission...
Nonplanetary transmission is friction gearing
475215, 475216, F16H 3712
Patent
active
060596856
ABSTRACT:
An automatic transmission for motor vehicles includes a traction drive variator having two sets of input discs, a set of output discs, a gearset, a compound planetary gearset, and two clutches for connecting and releasing various elements of the gearsets. The carrier of the gearsets is connected continually to both sets of variator input discs, and a sun gear is continually connected to the variator output discs. The ring gear of the compound planetary gearset is continually fixed against rotation. The transmission operates in geared neutral condition, reverse and forward low ranges, and high and low forward ranges.
REFERENCES:
patent: 4143561 (1979-03-01), Melhorn
patent: 4344336 (1982-08-01), Carriere
patent: 4393731 (1983-07-01), Croswhite et al.
patent: 4856371 (1989-08-01), Kemper
patent: 5368529 (1994-11-01), Machida
patent: 5453061 (1995-09-01), Fellows
patent: 5607372 (1997-03-01), Lohr
patent: 5643121 (1997-07-01), Greenwood
patent: 5860888 (1999-01-01), Lee
patent: 5941789 (1999-08-01), McCarrick et al.
Hoge Forrest William
McCarrick Daniel Warren
Ford Global Technologies Inc.
McKenzie Frank G.
Ta Khoi Q.
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