Propulsion unit for outboard motor

Details Propulsion unit for outboard motor Propulsion unit for outboard motor

2007-06-29

2009-02-24

Avila, Stephen (Department: 3617)

Marine propulsion

Screw propeller

Shafting

Reexamination Certificate

active

07494391

ABSTRACT:
A lubricant circulating system has a lubricant passage formed in a propeller shaft. The lubricant passage extends axially along the propeller shaft from a bevel gear mechanism to a position proximate to a journal of the propeller shaft. The journal of the propeller shaft is rotatably supported by a bearing. The lubricant passage further extends radially of the propeller shaft and communicates with an area proximate to the bearing. The lubricant circulating system is adapted such that lubricant circulates through the lubricant passage between an upstream opening of the lubricant passage at or around the bevel gear mechanism and a downstream opening of the lubricant passage in the vicinity of the bearing.

REFERENCES:
patent: 5643025 (1997-07-01), Suzuki
patent: 5697821 (1997-12-01), Ogino
patent: 57-182595 (1982-11-01), None
patent: 2863601 (1999-03-01), None
U.S. Appl. No. 11/771,780, filed Jun. 29, 2007, entitled Propulsion Unit For Marine Drive.

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