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. 24, 2001
Filed:
Jan. 11, 2000
Applicant:
Inventors:
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/18 ;
U.S. Cl.
CPC ...
F01D 5/18 ;
Abstract
A hollow cooled aerofoil blade (,) is provided with a central, lengthways extending plenum (,) and has pressure and suction flanks (,). The suction flank (,) has lengthways extending passages (,) therein that direct cooling air from the root region (,) into the central plenum (,). From the central plenum, the cooling air flows through a first set of apertures (,) into lengthways extending passages (,) in the pressure flank (,). The cooling air then flows through a second set of apertures (,) in the pressure flank to provide film cooling of the pressure flank (,) external surface.