Automatic transmission

Details Automatic transmission Automatic transmission

1977-07-14

1980-04-01

Wyche, Benjamin

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74752D, F16H 344, F16H 5710

Patent

active

041955374

ABSTRACT:
An automatic transmission for utilization with a dry clutch apparatus which may be electrically shifted to transmit torque from an engine to a vehicle's wheels. As a motor's speed picks up, the clutch apparatus drum drives the automatic transmission. Under runaway conditions, the clutch drum is rotated by the load acting through the transmission. The load is capable of driving the drum even faster than the motor rotates the shoes at which time slippage occurs and the motor is relieved. Through such a feature, the transmission may be shifted up or down at any speed.

REFERENCES:
patent: 2459829 (1949-01-01), Maxwell
patent: 2947399 (1960-08-01), Moore et al.
patent: 3024886 (1962-03-01), Peras
patent: 3115792 (1963-12-01), Grattan
patent: 3283867 (1966-11-01), Rice
patent: 3501980 (1970-03-01), Arick
patent: 4049103 (1977-09-01), Sessler

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