Machine element or mechanism – Gearing – With fluid drive
Patent
1989-11-01
1990-12-04
Diehl, Dwight
Machine element or mechanism
Gearing
With fluid drive
74360, 475200, 475206, F16H 4706
Patent
active
049744739
ABSTRACT:
A hydraulically operated transmission having first- to fourth-speed gear trains established by first-speed to fourth-speed hydraulic clutches, a one-way clutch incorporated in the first-speed gear train for permitting overrotation of an output side, and a first-speed maintaining hydraulic clutch also in the first-speed gear train parallel with the one-way clutch. The transmission includes first and second input shafts and an output shaft in parallel with one another within a transmission case. The first input shaft is connected to a fluid torque converter, through that end wall of the transmission case which is closer to an engine and to which a valve block is assembled. The first and second input shafts are rotatably connected at an opposite end to the engine, through an idle gear on the output shaft. The first-speed to fourth-speed gear trains are divided into two sets, each set including two gear trains, the two gear trains of one set being interposed in parallel between the first input shaft and the output shaft, the two hydraulic clutches for establishing the two gear trains of the one set being disposed in a back-to-back relation on the first input shaft, the two gear trains of the other set being interposed in parallel between the second input shaft and the output shaft, the two hydraulic clutches for establishing the two gear trains of the other set being disposed in a back-to-back relation on the second input shaft.
REFERENCES:
patent: 3465609 (1969-09-01), Fisher et al.
patent: 3858455 (1975-01-01), Sisson et al.
patent: 4106358 (1978-08-01), Morrison
patent: 4145935 (1979-03-01), Herlitzek
patent: 4388838 (1983-06-01), Richards et al.
patent: 4570503 (1986-02-01), Theobold
patent: 4771647 (1988-09-01), Stevens
patent: 4793213 (1988-12-01), Nishimura
patent: 4864881 (1989-09-01), Beeson et al.
patent: 4934207 (1990-06-01), Ishikawa et al.
Diehl Dwight
Honda Giken Kogyo Kabushiki Kaisha
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