Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1988-08-01
1990-07-31
Braun, Leslie A.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
475287, F16H 5710
Patent
active
049447190
ABSTRACT:
A planetary gear type speed change device having a first planetary gear mechanism 10, 12, 14, 16 or 60, 64, 66, 68, 70 and a second planetary gear mechanism 20, 22, 24, 26 or 62, 64, 66, 70 incorporated between an input shaft 52 and an output shaft 54 by a selectively actuable drive system including four clutches 38, 40, 42, 44, two brakes 46, 48 and a one-way clutch 34, wherein the one-way clutch 34 has two functions of selectively braking the ring gear 12 or the carrier 70 with respect to the housing 50 via the brake 46 in providing a first speed stage and also of selectively connecting the carrier 26 or 70 with the sun gear 20 or 62 via the clutch 40 in providing a third speed stage.
REFERENCES:
patent: 3473415 (1969-10-01), Kepner
patent: 3483771 (1969-12-01), Forster et al.
patent: 3811343 (1974-05-01), Mori et al.
patent: 3941013 (1976-03-01), Miller
patent: 3986413 (1976-10-01), Stockton
patent: 4086827 (1978-03-01), Chana
patent: 4430908 (1984-02-01), Stockton
patent: 4607541 (1986-08-01), Miura et al.
patent: 4722242 (1988-02-01), Miura et al.
patent: 4747323 (1988-05-01), Kiuchi et al.
Ito Hiroshi
Kubo Seitoku
Takahashi Tokuyuki
Braun Leslie A.
Campbell Chris
Toyota Jidosha & Kabushiki Kaisha
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