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:
May. 20, 2003
Filed:
Jul. 23, 2001
Applicant:
Inventor:
Geoffrey M Dailey, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/12 ;
U.S. Cl.
CPC ...
F02C 7/12 ;
Abstract
Cooling air enters a cooling path from a supply at The path follows a serpentine path consecutively through a number of components to be cooled, including guide vanes blades a shroud and a shaft A valve is provided at the downstream end of the path The setting of the valve modulates the flow and pressure of air along the path without wholly preventing it.