US Patent 7681398 Combustor liner and heat shield assembly

Patent 7681398 was granted and assigned to Pratt & Whitney Canada on March, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Pratt & Whitney Canada

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7681398

Date of Patent

March 23, 2010

Patent Application Number

11561042

Date Filed

November 17, 2006

Patent Citations Received

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US Patent 12018839 Gas turbine engine combustor with dilution passages

Patent Primary Examiner

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William H Rodríguez

Patent abstract

Impingement hole patterns are provided in a combustor dome panel to provide efficient cooling of a combustor dome heat shield. The impingement holes are substantially aligned or located above partial height protuberances provided on the back face of the heat shield.