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:
Sep. 24, 2013
Filed:
Nov. 16, 2009
Applicant:
Anthony J. Rawlinson, Derby, GB;
Inventor:
Anthony J. Rawlinson, Derby, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/18 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aerofoil () for a gas turbine engine () is hollow to define an interior volume () through which cooling air flows. Passages () interconnect the interior volume () with the exterior of the aerofoil (). Each passage () is provided with an inlet () within the interior volume () which is elongated along an axis () parallel with the direction of cooling air flow through the interior volume (). The arrangement reduces any tendency for the passages () to block though the build up of dirt particles.