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:
Mar. 13, 2018
Filed:
Jul. 28, 2015
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Ian Tibbott, Lichfield, GB;
Dougal Richard Jackson, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/12 (2006.01); F01D 9/04 (2006.01); F01D 5/18 (2006.01); F01D 9/02 (2006.01);
U.S. Cl.
CPC ...
F01D 25/12 (2013.01); F01D 9/041 (2013.01); F01D 9/047 (2013.01); F01D 5/186 (2013.01); F01D 5/187 (2013.01); F01D 9/023 (2013.01); F05D 2220/32 (2013.01); F05D 2240/128 (2013.01); F05D 2240/81 (2013.01); F05D 2250/14 (2013.01); F05D 2250/18 (2013.01); F05D 2250/184 (2013.01); F05D 2260/202 (2013.01);
Abstract
An end-wall component of the mainstream gas annulus of a gas turbine engine having an annular arrangement of vanes, the component including a cooling arrangement having ballistic cooling holes () through which, in use, dilution cooling air is jetted into the mainstream gas upstream of the vanes to reduce the mainstream gas temperature adjacent the end-wall, wherein the cooling holes are arranged in one or more circumferentially extending rows and wherein the axial position of the cooling holes in the or each row varies.