Boat hull with flow chamber

Details Boat hull with flow chamber Boat hull with flow chamber

1984-07-12

1986-09-02

Blix, Trygve M.

Marine propulsion

Screw propeller

Having means to control flow around propeller

114288, B63H 516

Patent

active

046093605

ABSTRACT:
A boat hull having a two-stage flow chamber. The first stage flow chamber starts about amidships as a V-shape fairing upward at a shallow angle and flattening out about halfway to the stern. The second stage flow chamber starts at the end of the forward flow chamber curving upward at a greater angle than the first stage and curving downward slightly at the stern. The second stage flow chamber has an inverted V-shape portion connected to the bottom by a pair of narrow sidewalls spreading slightly outward. The forward flwo chamber delivers water to the aft flow chamber free from turbulence. The propeller is disposed in the aft flow chamber and splayed slightly to port. Water exits from the aft flow chamber with minimum turbulence and cavitation.

REFERENCES:
patent: 815187 (1906-03-01), Manker
patent: 2985133 (1961-05-01), Shaffer
patent: 3937173 (1976-02-01), Stuart
patent: 4300889 (1981-11-01), Wormser

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