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:
Apr. 21, 2015
Filed:
Aug. 01, 2013
Jay A. Morrison, Titusville, FL (US);
Ching-pang Lee, Cincinnati, PA (US);
Michael E. Crawford, Oviedo, FL (US);
Jay A. Morrison, Titusville, FL (US);
Ching-Pang Lee, Cincinnati, PA (US);
Michael E. Crawford, Oviedo, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A cooling arrangement () having: a duct () configured to receive hot gases () from a combustor; and a flow sleeve () surrounding the duct and defining a cooling plenum () there between, wherein the flow sleeve is configured to form impingement cooling jets () emanating from dimples () in the flow sleeve effective to predominately cool the duct in an impingement cooling zone (), and wherein the flow sleeve defines a convection cooling zone () effective to cool the duct solely via a cross-flow (), the cross-flow comprising cooling fluid () exhausting from the impingement cooling zone. In the impingement cooling zone an undimpled portion () of the flow sleeve tapers away from the duct as the undimpled portion nears the convection cooling zone. The flow sleeve is configured to effect a greater velocity of the cross-flow in the convection cooling zone than in the impingement cooling zone.