External electric drive propulsion module arrangement for swath

Details External electric drive propulsion module arrangement for swath External electric drive propulsion module arrangement for swath

1999-05-03

2000-11-28

Basinger, Sherman

Marine propulsion

Electric drive for propelling means

440 67, 114 6112, B60L 1102

Patent

active

061527912

ABSTRACT:
In the embodiments described in the specification, a SWATH vessel has a superstructure supported by strut members from a pair of pontoons and each pontoon has a propulsion module removably attached to the rear end of the pontoon. The propulsion module has a self contained propulsion system including a module body with a longitudinal water passage, a rim drive electric motor, a row of rotatable blades, and an inlet opening at the forward end of he cowl member which is arranged to draw in the boundary layer of water flowing along the pontoon to which the propulsion module is attached. Spaced vanes are provided at the inlet opening to block objects from being drawn into the longitudinal passage.

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patent: 5301624 (1994-04-01), Hall et al.
patent: 5679037 (1997-10-01), Rieben

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