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:
Nov. 03, 2009
Filed:
Jul. 05, 2006
John James Anthony Cullen, Chellaston, GB;
Andrew Martin Rolt, Derby, GB;
John James Anthony Cullen, Chellaston, GB;
Andrew Martin Rolt, Derby, GB;
Rolls-Royce plc, London, GB;
Abstract
Within a power generating arrangementit is typically necessary to provide a coupling with an electrical power distribution cable. Previously this was sometimes achieved through use of brush gear and slip rings but such arrangements are subject to regular replacement for wear, maintenance and also there is a requirement to control humidity about the brush gear coupling. Alternatively, a system allowing an amount of rotation, limited by cable wind up was used. By providing a transformer in which windingsare physically separated by an air gap, but still induce voltage from variation in the magnetic flux, it is possible to create a power generating transfer transformer which can be rotated while driving electrical current for an external load. One componentacts as a stationary stator for ease of coupling to a power distribution cablewhilst the other rotating component incorporates another windingwith an alternating current in it in order to stimulate a voltage and therefore current in the stationary windingfor driving electrical current through to the external electrical load