Drive transmission unit for equal forward and reverse speeds, in particular for a ship drive
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United States of America Patent
Stats
-
Apr 5, 1988
Grant Date -
N/A
app pub date -
May 28, 1986
filing date -
Jun 12, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An input shaft is keyed to a first bevel gear, in constant mesh engagement with a second bevel gear keyed to a countershaft and rigidly associated with a first clutch, for causing a first pinion to become rotatively engaged with or disengaged from the input shaft. The second bevel gear is rigidly associated with a second clutch for causing a second pinion to become rotatively engaged with or disengaged from the countershaft. The first and the second pinions are in constant mesh engagement with an output bevel gear keyed to an output shaft, so that by selectively engaging one of the clutches and disengaging another of the clutches, the input and output shafts can be selectively caused to rotate counter-directionally or co-directionally. The axes of the shafts converge towards a common point to simplify the gear arrangements.
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