Synchronizer for a gear shift mechanism for a marine propulsion system
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United States of America Patent
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May 16, 2000
Grant Date -
N/A
app pub date -
May 13, 1998
filing date -
May 13, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A synchronized gear shift mechanism is provided for a marine propulsion system. Using a hub and a sleeve that are axially movable relative to an output shaft but rotationally fixed to the shaft and to each other, the gear shift mechanism uses associated friction surfaces to bring the output shaft up to a speed that is synchronism with the selected forward or reverse gear prior to mating associated gear tooth surfaces together to transmit torque from an input shaft to an output shaft. The friction surfaces on the forward and reverse gears can be replaceable to facilitate repair after the friction surfaces experience wear.
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