Marine propulsion – Screw propeller – Having transmission
Patent
1995-05-31
1996-09-17
Sotelo, Jesus D.
Marine propulsion
Screw propeller
Having transmission
440 80, 416129, 192 487, B63H 2128
Patent
active
055563139
ABSTRACT:
A transmission for a counter-rotating propeller system of a watercraft outboard drive includes a reduced friction coupling between the inner and outer shafts which permits transfer of the thrust loading on the inner shaft to the outer shaft under a reverse drive condition. The inner and outer shafts include opposing transverse surfaces which are separated by a pair of anti-friction washers. The washers allow the shafts to rotate in opposite directions with minimum friction, while allowing the opposing surfaces to act on each other through the washers to transfer the trust loading when the watercraft is driven in reverse.
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Sanshin Kogyo Kabushiki Kaisha
Sotelo Jesus D.
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