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:
Jan. 30, 2018
Filed:
Dec. 27, 2013
Rolls-royce Corporation, Indianapolis, IN (US);
Rolls-royce North American Technologies, Inc., Indianapolis, IN (US);
Donald E. Pinnick, Mooresville, IN (US);
Kenneth W. Froemming, Carmel, IN (US);
Bruce E. Varney, Greenwood, IN (US);
James C. Loebig, Greenwood, IN (US);
Todd Taylor, Bargersville, IN (US);
Rolls-Royce Corporation, Indianapolis, IN (US);
Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US);
Abstract
A gas turbine engine variable porosity combustor liner has a laminated alloy structure. The laminated alloy structure has combustion chamber facing holes on one side and cooling plenum facing holes on a radially opposite side. The combustion chamber facing holes are in fluid communication with the cooling plenum facing holes via axially and circumferentially extending flow passages sandwiched between metal alloy sheets of the laminated alloy structure. Porous zones having respective different cooling flow amounts are formed in the laminated allow structure based on at least one of an arrangement of the combustion chamber facing holes, an arrangement of the cooling plenum facing holes, and an arrangement of the flow passages.