Outboard drive transmission

Details Outboard drive transmission Outboard drive transmission

1994-01-29

1996-05-07

Sotelo, Jesus D.

Marine propulsion

Screw propeller

Having transmission

B63H 516

Patent

active

055140149

ABSTRACT:
A transmission for a counter-rotating propeller system of a watercraft outboard drive has a compact arrangement so as to occupy less space in the lower unit of the outboard drive and thus provide increased flow area for exhaust discharge. The transmission includes a pair of counter-rotating gears. A front clutch selectively drives a main propulsion shaft by engaging either of the gears. A rear clutch drives an outer propulsion shaft by engaging the rear gear. The rear gear includes a bearing hub that receives the rear clutch which moves within the bearing hub between an engagement position and a non-engagement position. The overlapping arrangement between the rear gear and the rear clutch reduces the axial length of the transmission to present a compact arrangement of these components.

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