Marine propulsion – Screw propeller – Having means to control flow around propeller
Reexamination Certificate
2005-05-17
2005-05-17
Wright, Andrew D. (Department: 3617)
Marine propulsion
Screw propeller
Having means to control flow around propeller
C114S061280
Reexamination Certificate
active
06893304
ABSTRACT:
A course-holding, high-speed, sea-going vessel having a hull which is intended to hold payloads or passengers and at least one rotatable, preferably electric, rudder propeller (POD) which is arranged gondola-like under the hull of the vessel and has, to supply it with power, at least one motor/generator unit which is arranged in the hull of the vessel, the hull of the vessel having at least in part a bottom which rises somewhat toward the two sides of the hull, and in that the front part of the hull is designed so as to stabilize the course and movement of the vessel and ending under water, in particular in a relatively slender bow with a bulb, and in that a flow-guiding element (skegg) is arranged upstream of each rudder propeller in order both to optimize the handling characteristics and to achieve an optimized flow against the rudder propeller, which has a displacement volume for the water flowing against the respective rudder propeller.
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Andersen Peter
Henriksen Bjoern A.
Tigges Kay
Baker & Botts LLP
Siemens Aktiengesellschaft
Wright Andrew D.
LandOfFree
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