Device with cavitational effect for propellers of watercraft wit

Details Device with cavitational effect for propellers of watercraft wit Device with cavitational effect for propellers of watercraft wit

1991-02-04

1992-12-15

Basinger, Sherman

Marine propulsion

Screw propeller

Having means to control flow around propeller

B63H 118

Patent

active

051711753

ABSTRACT:
The device induces cavitation in at least a propeller of an engine-driven watercraft with a planing or semiplaning keel. The device generates a depression area in the front part of the same propeller and connects the area with atmosphere by air ducts, thereby allowing planing speed to be attained more rapidly and better utilization of the engine power during the transient stages before attaining planing speed.

REFERENCES:
patent: 1470191 (1923-10-01), Reid
patent: 3434447 (1969-03-01), Christensen et al.
patent: 4383829 (1983-05-01), Allen, Jr.
patent: 4689026 (1987-08-01), Small
patent: 4941423 (1990-07-01), Van Tassel

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