Marine propulsion device including an overdrive transmission

Details Marine propulsion device including an overdrive transmission Marine propulsion device including an overdrive transmission

B - Operations, Transporting

63

H

115/8, 74/92

B63H 5/13 (1980.01)

Patent

CA 1177338

ABSTRACT OF THE DISCLOSURE The overdrive transmission for a marine propulsion device includes a first drive gear mounted for common rotation with an input shaft connected to a power source, such as an internal combustion engine, a first driven gear mounted for common rotation with a drive shaft drivingly connected to a propeller shaft carrying a propeller, and one-way, overrunning clutch connecting the input and drive shafts. The first drive gear meshes with a second driven gear having fewer gear teeth than the first drive gear and mounted on a counter shaft for common rotation therewith. The first driven gear meshes with a second drive gear mounted on the counter shaft for rotation relative thereto. The counter shaft is selectively drivingly connected to the second drive gear to drive the drive shaft at a rotational speed higher than that of the input shaft.

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