Machine element or mechanism – Gearing – In series plural interchangeably locked nonplanetary units
Patent
1987-09-25
1989-02-28
Braun, Leslie A.
Machine element or mechanism
Gearing
In series plural interchangeably locked nonplanetary units
74331, 74333, F16H 302, F16H 308
Patent
active
048074934
ABSTRACT:
A multi-speed twin countershaft transmission having a floating main shaft with no internal or external bearings or other support device at or adjacent its ends. The main shaft is positioned only by gears carrying the torque. At the forward end of the main shaft, positioning and support takes place by engagement of the main shaft gear to the main shaft and the two counter shaft gears driving it. Positioning and support at the output end of the main shaft is obtained by the self positioning of a range drive gear on the main shaft between two input driven gears on a pair of range countershafts. A true 50-50 torque split is obtained.
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Braun Leslie A.
Dana Corporation
Groh Irvin L.
Macris Harold F.
Patmore, Jr. Alfred L.
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