Pod propulsion system with rim-mounted bearings

Details Pod propulsion system with rim-mounted bearings Pod propulsion system with rim-mounted bearings

2007-07-03

2007-07-03

Swinehart, Ed (Department: 3617)

Marine propulsion

Jet drive

C440S006000, C440S083000, C114S151000

Reexamination Certificate

active

10948061

ABSTRACT:
A pod propulsion system comprises a housing defining a fluid duct and an annular drum rotatably mounted to the housing within the fluid duct. The annular drum has a drum interior and a cylindrical outer surface. The system further comprises a rotor mounted to the drum for rotation therewith, the rotor and the drum having a common axis of rotation. A bearing assembly mounted to the housing comprises a first bearing comprising a first plurality of bearing pads disposed circumferentially around the drum. Each pad has a pad bearing surface adapted to contact a first drum portion in a predetermined manner and is pivotably mounted to the housing so as to maintain contact of the pad bearing surface with the first drum portion in the predetermined manner when an orientation of the drum portion relative to the housing changes.

REFERENCES:
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patent: 2003/0186601 (2003-10-01), Collier et al.
“Scale Model Testing of a Commercial Rim-Driven Propulsor Pod”, Lea et al., 12 pgs., downloaded from unknown internet site, Oct. 2003.
“The Commercial Rim-Driven Permanent Magnet Motor Propulsor Pod”, Van Blarcom et al., Aug. 22, 2002, 13 pgs.
“The Commercial Rim-Driven Permanent Magnet Motor Propulsor Pod”, Van Blarcom, http://www.nsrp.org/st2003/presentations/vanblarcom.pdf , Shipbuilding Technologies 2003 Conference, Jan. 16-17, 2003, 5 pgs.
“Pod Propulsion”, http://www.hsva.de/service/res/pod.html#pub, Jan. 13, 2003, 4 pgs.

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