Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1982-01-13
1984-12-25
Herrmann, Allan D.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
184 612, 184 113, F16H 344, F01M 900, F01M 100
Patent
active
044896263
ABSTRACT:
A lubrication system is for a planetary gear system of the type which includes an input shaft for driving an output shaft through a planetary gear reducer. The system includes an oil pump driven by the input shaft to provide lubricating oil to the input shaft bearings and a first chamber defined by a running seal between a ring gear wheel on the input shaft and the housing. A passage through the ring gear wheel allows lubricating oil to be received from the first chamber to a second chamber which is generally defined by a second annular running seal between the ring gear wheel and the planetary carrier. Passages through the planetary carrier allow delivery of the lubricating oil under pressure from the second chamber to the planetary gears and the sun gear.
REFERENCES:
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patent: 2791130 (1957-05-01), Boughner
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patent: 3296895 (1967-01-01), Karlsson
patent: 3426623 (1969-02-01), Abbott
patent: 4189960 (1980-02-01), Holdeman
Andrews Stephen B.
Herrmann Allan D.
Rockwell International Corporation
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