Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1988-06-02
1989-10-10
Diehl, Dwight G.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74766, 74781R, 74787, 74791, F16H 5710, F16H 370
Patent
active
048723762
ABSTRACT:
A transmission for a vehicle wherein a single pinion type planetary gear mechanism and a double pinion type planetary gear mechanism are operatively combined by clutches and brakes in various manners to provide five or even six speed stages and a reverse stage, the overall gear ratio between the lowest speed stage and the highest speed stage thereof being relatively small in spite of the five or even six speed stages. The transmission, by further incorporating one way clutches, is generally shifted between each two adjacent speed stages by only newly putting one of the clutches or brakes into engagement or out of engagement with no need of timely related operations of other clutches or brakes.
REFERENCES:
patent: 3946623 (1976-03-01), Murakami et al.
patent: 3956946 (1976-05-01), Murakami et al.
patent: 3971267 (1976-07-01), Murakami et al.
patent: 4007648 (1977-02-01), Bookout
patent: 4038888 (1977-08-01), Murakami et al.
patent: 4046031 (1977-09-01), Ott et al.
patent: 4228697 (1980-10-01), Miller
patent: 4748869 (1988-06-01), Ohtsuka
Asada Toshiyuki
Higashiyama Yasuhiko
Ushijima Fumihiro
Diehl Dwight G.
Toyota Jidosha & Kabushiki Kaisha
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