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:
Oct. 21, 2008
Filed:
Aug. 09, 2005
Peter J. Goodman, Bristol, GB;
Keith C. Sadler, Bristol, GB;
Michiel Kopmels, Bristol, GB;
Rolls-Royce PLC, London, GB;
Abstract
A component such as a turbine blade for a gas turbine engine has a cooling arrangement comprising a supply passagewithin the blade from which extend cooling passagesof a first array which open at discharge openings, for example at a trailing edge of the blade. Cooling passagesof a second array extend into the blade from discharge openings, and intersect the passagesThe passagesterminate short of the supply passageAs a result of this arrangement, the limiting flow area for cooling air is defined by the cooling passagesof the first array, and is not affected by the accuracy with which the cooling passagesof the second array intersect the cooling passagesof the first array.