Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1978-12-26
1981-06-09
Husar, C. J.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74730, 74655, F16H 4700
Patent
active
042717248
ABSTRACT:
Disclosed is a power shift transmission having torque converter, an input shaft driven by the torque converter, a countershaft in continuous driving relation with the input shaft, an output shaft having first, second, and third speed ratios journaled thereon and driven via the countershaft, a reverse speed ratio gear splined to the output shaft and driven via a gear on an idler shaft driven by the countershaft, a first friction clutch mechanism for connecting the first speed ratio gear to the output shaft, a second friction clutch mechanism for connecting the output shaft directly to the input shaft, a blocker-clutch assembly for coupling the second and third speed ratio gears to the output shaft, and an actuator assembly for shifting the blocker-clutch assembly into and out of coupling engagement. The friction clutches are momentarily engageable to relieve driving and coast mode torque on the blocker-clutch and to synchronize the blocker-clutch. An alternative embodiment of the transmission includes a torque converter driven shaft for driving the countershaft and a torque converter bypass shaft which is connected directly to the output shaft via the second friction clutch mechanism.
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patent: 3589483 (1971-06-01), Smith
patent: 3769857 (1973-11-01), Whateley
Daugherty Mark
Eaton Corporation
Husar C. J.
McCloskey R. J.
Rulon P.
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