Drive shaft supporting structure for jet propulsion watercraft

Details Drive shaft supporting structure for jet propulsion watercraft Drive shaft supporting structure for jet propulsion watercraft

2007-04-03

2007-04-03

Swinehart, Ed (Department: 3617)

Marine propulsion

Screw propeller

Shafting

C440S052000

Reexamination Certificate

active

10972761

ABSTRACT:
A drive shaft supporting structure for a watercraft is provided that supports in a substantially watertight manner at least a portion of the driveshaft. The drive shaft extends from an engine, which is disposed within an inner section of a hull of the watercraft (e.g., an engine compartment), to a propulsion unit that is disposed outside the inner section of the hull. The driveshaft supporting structure includes a bearing part that is mounted on a peripheral surface of the driveshaft at a location within the inner section of the hull. An elastic part is mounted on a peripheral surface of the bearing part and a bearing part supporting section supports a press-fitted assembly of the elastic part and the bearing part. The bearing part supporting section is attached to a wall of the hull (e.g., a duct wall) at a location where the driveshaft extends from the inner section of the hull.

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