Counter-rotation transmission

Details Counter-rotation transmission Counter-rotation transmission

1987-05-29

1989-07-25

Peters, Jr., Joseph F.

Marine propulsion

Screw propeller

Having transmission

B63H 2128

Patent

active

048509108

ABSTRACT:
Disclosed herein is a marine propulsion device comprising a lower unit including a gearcase, a driveshaft having an end extending into the gearcase, a pinion mounted on the end of the driveshaft, a propeller shaft bearing housing located within the gearcase having a forward end adjacent the pinion, a propeller shaft rotatably mounted in the propeller shaft bearing housing and having a rear end portion and a portion forwardly of the rear end portion, a propeller mounted on the rear end of the propeller shaft, a bevel gear adjacent the forward end of the propeller shaft bearing housing and engaging the pinion, the bevel gear including an annular forwardly facing thrust transferring surface, and an annular thrust transferring element mounted on the propeller shaft bearing housing and engageable with the annular forwardly facing thrust transferring surface so as to transfer thrust forwardly from the bevel gear through the thrust transferring element and to the propeller shaft bearing housing.

REFERENCES:
patent: 3217688 (1965-11-01), Warburton et al.
patent: 3727574 (1973-04-01), Bagge
patent: 4302196 (1981-11-01), Blanchard
patent: 4637802 (1987-01-01), Taguchi et al.
patent: 4689027 (1987-08-01), Harada et al.

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