Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1979-07-12
1981-12-08
Braun, Leslie
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74665GE, 74681, 74718, 74731, 474 11, 474 13, 474 15, 474 70, 474 72, 474 73, 474 74, F16H 4704, F16H 4708
Patent
active
043041507
ABSTRACT:
A motor vehicle transmission unit provided with an automatic variable ratio transmission mechanism and a supplementary fixed ratio transmission mechanism which transmits torque from an input shaft to an output shaft of the unit in conditions of low speed and high torque. A free wheel clutch allows the variable ratio transmission mechanism to take over the drive when the speed increases, this being accomplished by means of an automatic speed sensitive clutch which engages when the speed of the output shaft reaches a predetermined threshold valve. A torque converter or other progressive coupling device links the input shaft of the unit, via an isolating friction clutch, to the fixed ratio transmission mechanism.
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patent: 4125037 (1978-11-01), Palmer et al.
Castelli Pier G.
Lupo Giorgio
Braun Leslie
Fiat Auto S.p.A.
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