Personal watercraft gullet

Details Personal watercraft gullet Personal watercraft gullet

1991-11-04

1993-08-17

Basinger, Sherman

Marine propulsion

Jet drive

Having means to increase fluid drive means efficiency

114270, B63H 11103

Patent

active

052363791

ABSTRACT:
An outlet for a personal watercraft which reduces water turbulence entering a hydro-jet propulsion system. The gullet comprises a entry edge fin have a blunt nose for improving hydrodynamic flow through the gullet. The nose has an apex positioned at or above a keel line of the watercraft, and preferably positioned closer to the keel line than to a floor of the gullet. The gullet also has a generally constant area along its length to maintain substantially constant pressure over its length and to provide low resistance to water flow through the gullet.

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D. Ford, Fine-Tuning Your Pump Inlet With Targa's Vortex Generator, Personal Watercraft Illustrated, 78-79 (Oct. 1990).
"Hydraulic Jet Propulsion: A Theoretical and Experimental Investigation Into the Propulsion of Seacraft by Water Jets," by A. Gasiunas, et al., published in vol. 178, Part I, the Institution of Mechanical Engineers.

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