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:
Dec. 14, 2010
Filed:
Feb. 20, 2007
Ian Tibbott, Lichfield, GB;
Edwin Dane, Nottingham, GB;
Ian Tibbott, Lichfield, GB;
Edwin Dane, Nottingham, GB;
Rolls-Royce plc, London, GB;
Abstract
An aerofoilfor a gas turbine engine includes a root portion, a tip portionlocated radially outwardly of the root portion, leading and trailing edgesextending between the root portionand the tip portionand an internal cooling passage. The aerofoilincludes a plurality of cooling fluid discharge aperturesextending between the root portionand the tip portionin a trailing edge regionto discharge cooling fluid from the internal cooling passageto an outer surfaceof the aerofoil in the trailing edge regionand thereby provide a cooling film in the trailing edge region. The cooling fluid discharge aperturesare arranged so that the flow rate of the cooling fluid discharged from the internal cooling passageto the outer surface trailing edge regionvaries between the root portionand the tip portion