Transmission with integral large and small planetary gears, and

Details Transmission with integral large and small planetary gears, and Transmission with integral large and small planetary gears, and

1994-10-17

1996-09-10

Ta, Khoi Q.

Planetary gear transmission systems or components

Planetary gearing or element

Coaxial teeth around planet pinion engage axially spaced...

475339, 475340, 74462, F16H 128

Patent

active

055540821

ABSTRACT:
A transmission including composite planetary gears supported by a carrier such that the planetary gears are arranged around an axis of the carrier, each planetary gear consisting of a large and a small pinion which mesh with a first and a second gear, respectively, and which have a ratio Zp.sub.1 /Zp.sub.2 equal to an integer not smaller than 2, wherein Zp.sub.1 and Zp.sub.2 represent numbers of teeth of the large and small pinions, respectively. The transmission is assembled by assembling the common second gear and the carrier supporting the planetary gears, such that the small pinion of each composite planetary gear meshes with the common second gear, and assembling the common first gear and the carrier such that the large pinion of each planetary gear supported by the carrier meshes with the common first gear.

REFERENCES:
patent: 3721135 (1973-03-01), Kelley
patent: 3780601 (1973-12-01), Dach et al.
patent: 4928227 (1990-05-01), Joesph et al.
patent: 5376057 (1994-12-01), Cooper et al.
"ETX-II Automatic Transaxle for AC Powered Light Trucks" disclosed by P.T. Koneda, Ford Motor Company. in EVZ 9 (Nov. 13-16, 1988.
Automobile Engineering, Railroad Japan, Inc., May 1992, pp. 91-94.

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