Machine element or mechanism – Gearing – Interchangeably locked
Patent
1978-12-26
1981-04-14
Kundrat, Andrew V.
Machine element or mechanism
Gearing
Interchangeably locked
74335, F16H 338
Patent
active
042612160
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.
REFERENCES:
patent: 3048247 (1962-08-01), Cook et al.
patent: 3491863 (1970-01-01), Karlsson et al.
patent: 3529484 (1970-09-01), Tomita et al.
patent: 3589483 (1971-06-01), Smith
patent: 3744608 (1973-07-01), Newman
patent: 3906817 (1975-09-01), Kreitzberg
patent: 3913411 (1975-10-01), Jameson
Eaton Corporation
Kundrat Andrew V.
McCloskey R. J.
Rulon P.
Wood D.
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