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:
Jun. 03, 2014
Filed:
Mar. 29, 2010
Neil Rawlinson, Kenilworth, GB;
Michael Robert Lyons, Solihull, GB;
William Keith Bradbury, Solihull, GB;
Laurence Alden, Droitwich Spa, GB;
Blair Ramsay, Barford, GB;
Mark Scully, Derby, GB;
Neil Rawlinson, Kenilworth, GB;
Michael Robert Lyons, Solihull, GB;
William Keith Bradbury, Solihull, GB;
Laurence Alden, Droitwich Spa, GB;
Blair Ramsay, Barford, GB;
Mark Scully, Derby, GB;
Rolls-Royce Controls and Data Services Limited, Derby, GB;
Abstract
A staging valve arrangement is described that comprises an arrangement of electrically driven staging valves that are located, in use, in the high temperature core zone of an engine. Each staging valve may comprise a housing having an inlet, a pilot flow outlet and a mains flow outlet, a valve member movable between a closed position in which the mains flow outlet is closed and an open position in which the mains flow outlet is open, a motor operable to drive the valve member for movement, and a cooling arrangement.