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:
Jul. 27, 2004
Filed:
Dec. 03, 2002
Jens Tornblad, Kristinehamn, SE;
Christer Häger, Kristinehamn, SE;
Sven-Gunnar Karlsson, Kristinehamn, SE;
Gunnar Styrud, Kristinehamn, SE;
Rolls-Royce Aktiebolag, Kristinehamn, SE;
Abstract
A propulsion system for ships having an impeller ( ), a stator shell ( ), and an impeller housing ( ) for achieving a water jet, a shaft ( ) for the propulsion of the impeller ( ), and a bearing arrangement for the shaft ( ) in the stator shell ( ), and preferably a sealing ( ) of the shaft ( ) in the impeller housing ( ), wherein the shaft ( ) consists of a light weight shaft, which has considerably lower bending rigidity than a homogenous, conventional steel shaft, and the driving force is transmitted via at least one non-flexible coupling ( B, A) and via the bearing arrangement which is rigid as to bending and handles the axial load, to the stator shell ( ), such that a high power density is achieved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile