Propulsion system

Details Propulsion system Propulsion system

2008-02-21

2011-11-01

Swinehart, Edwin (Department: 3617)

Marine propulsion

Jet drive

Reexamination Certificate

active

08047884

ABSTRACT:
A propulsion system may include a cylindrical support member and a tubular rotatable member rotatably mounted within the support member that may be adapted to permit fluid flow therethrough. The tubular rotatable member may extend past a down stream end of the support member. An exemplary embodiment of a propulsion system may also disclose a vane attached on an interior surface of the tubular member and may include a blade which extends in a direction toward a rotational axis of the rotatable member such that rotation of the tubular member and the vane attached thereon draws fluid into the tubular member to accelerate the fluid flow through the tubular member. Additionally, a nozzle may be attached to the down stream end of the support member and include a primary nozzle and a secondary nozzle within the primary nozzle. The secondary nozzle may be engaged with the primary nozzle by a stator.

REFERENCES:
patent: 3249083 (1966-05-01), Irgens
patent: 4838819 (1989-06-01), Todorovic
patent: 5222863 (1993-06-01), Jones
patent: 5383802 (1995-01-01), Nicholson
patent: 2007/0270056 (2007-11-01), Abdel-Maksoud et al.
patent: WO/2007/005209 (2007-01-01), None
International Search Report for corresponding PCT Application No. PCT/US2008/003627 dated Sep. 22, 2008.

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