The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2007
Filed:
Jul. 29, 2002
Applicants:
Graham Derek Le Flem, Rugby, GB;
Jacques Enon, Nancy, FR;
Inventors:
Graham Derek Le Flem, Rugby, GB;
Jacques Enon, Nancy, FR;
Assignee:
Converteam Ltd, Warwickshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 21/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
A propulsion unit for propelling a waterborne vessel includes an electric motor arranged to provide propulsion, and a housing arranged to contain the motor. The interior of the housing is maintained at an increased pressure of above roughly 2 bar to increase the cooling effect of a cooling gas maintained therein. An end region of the housing is provided with a heat exchange mechanism arranged to cool a cooling gas passing thereover. The heat exchange mechanism is associated with the housing such that, in use, water surrounding the housing absorbs heat therefrom.