Marine jet propulsion steering system

Details Marine jet propulsion steering system Marine jet propulsion steering system

2008-10-01

2011-12-13

Olson, Lars A (Department: 3617)

Marine propulsion

Jet drive

Direction control for fluid jet

C440S040000, C440S043000

Reexamination Certificate

active

08075355

ABSTRACT:
A marine jet propulsion system has a jet pump, a venturi connected to the jet pump, and a steering nozzle rotationally mounted relative to the venturi about a first axis. The steering nozzle has a central longitudinal axis. The first axis intersects the central longitudinal axis. A first link has a first end rotationally mounted relative to the venturi about a second axis. The first link has a second end disposed generally rearwardly from the first end of the first link. A second link has a first end rotationally mounted to the first link about a third axis and a second end rotationally mounted to the steering nozzle about a fourth axis. The third axis intersects the second end of the first link. A steering arm is connected to the first link. The axes are generally parallel to each other. A watercraft having the jet propulsion system is also disclosed.

REFERENCES:
patent: 3121994 (1964-02-01), Aldropp
patent: 3137266 (1964-06-01), Perrier et al.
patent: 4509923 (1985-04-01), Turnbull
patent: 5803775 (1998-09-01), Henmi
patent: 6508187 (2003-01-01), Maeda et al.
patent: 6675730 (2004-01-01), Simard et al.
patent: 7753746 (2010-07-01), Pesant

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