Stator of propelling system of small powerboat

Details Stator of propelling system of small powerboat Stator of propelling system of small powerboat

1997-09-08

1999-03-02

Swinehart, Ed L.

Marine propulsion

Jet drive

440 47, B63H 1108

Patent

active

058762574

ABSTRACT:
A powerboat propelling system is composed of an engine, a water tract, a propeller, and a stator. The water tract is provided with a water inlet, a nozzle having a water outlet, and a midsection in which the propeller is mounted. The stator is composed of a frame, an axial portion, and a plurality of stator blades fastened with the frame and the axial portion. The axial portion has a front segment and a rear segment. The front segment and the frame form therebetween a first circular space forming a portion of the water tract, whereas the rear segment and the nozzle form therebetween a second circular space forming a portion of the water tract. The first and the second circular spaces have a cross-sectional area which becomes gradually smaller from one end thereof toward another end thereof contiguous to the nozzle for accelerating the flow of water in the water tract without increasing the length of the stator or nozzle.

REFERENCES:
patent: 3083529 (1963-04-01), Hamilton
patent: 5222863 (1993-06-01), Jones

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