Automatic transmission

Details Automatic transmission Automatic transmission

1978-12-06

1981-10-27

Staab, Lawrence J.

Machine element or mechanism

Elements

Gear casings

74730, 74762, 74766, F16H 4708, F16H 4700

Patent

active

042966469

ABSTRACT:
A multi-ratio motor car automatic transmission comprising two planetary gear trains and a coupling between input and output. Each train comprises a sunwheel, planet pinions, planet pinion carrier and internally toothed annulus. Two clutches and two or three friction reaction brakes hold stationary and/or prevent or allow various parts of the gear trains to rotate to select one of the ratios. The manner of selection is such as to reduce reliance of the transmission on the coupling so as to reduce losses in the coupling and thereby improve fuel consumption. Arrangements are described suitable for rear engined and transverse front engined vehicles as well as for the more conventional front engine layout.

REFERENCES:
patent: 2736407 (1956-02-01), Smirl
patent: 2813437 (1957-11-01), Kelbel et al.
patent: 2821869 (1958-02-01), Kelbel
patent: 2844975 (1958-07-01), Kelbel et al.
patent: 2901923 (1959-09-01), Waclawek
patent: 3263527 (1966-08-01), Stockton
patent: 4003273 (1977-01-01), Miller

Affiliated with

Also associated with

Rating

Automatic transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-274362