Planetary gear type multistage transmission

Details Planetary gear type multistage transmission Planetary gear type multistage transmission

1991-05-10

1991-12-17

Diehl, Dwight

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

F16H 5710

Patent

active

050731602

ABSTRACT:
A planetary gear type multistage transmission is shown which comprises a first planetary gearset, a second planetary gearset, an input shaft and an output shaft. A pinion carrier of the second planetary gearset is united with a pinion carrier of the first planetary gearset. The input shaft is united with the pinion carrier of the second planetary gearset. The output shaft is united with an internal gear of the first planetary gearset. A first clutch is employed for selectively engaging the sun gear of the first planetary gearset with the pinion carrier of the same. A second clutch is employed for selectively engaging the sun gear of the first planetary gearset with the pinion carrier of the second planetary gearset. A th ird clutch is used for selectively engaging the pinion carrier of the second planetary gearset with the internal gear of the same. A first brake is employed for selectively braking the sun gear of the first planetary gearset. A second brake is employed for selectively braking the pinion carrier of the first planetary gearset and a third brake is employed for selectively braking the sun gear of the second planetary gearset.

REFERENCES:
patent: 4872376 (1989-10-01), Asada et al.

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