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:
Nov. 08, 2011
Filed:
Oct. 30, 2007
Applicants:
Michael H. Coney, Derby, GB;
Andrew J. Mullender, Nottingham, GB;
Brian A. Handley, Derby, GB;
David M. Parkin, Derby, GB;
Inventors:
Michael H. Coney, Derby, GB;
Andrew J. Mullender, Nottingham, GB;
Brian A. Handley, Derby, GB;
David M. Parkin, Derby, GB;
Assignee:
Rolls-Royce PLC., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas turbine engine including a bypass duct defined by radially outer and inner walls, the radially inner wall defined by acoustic panels. The acoustic panels define the outer wall of a heated fire zone. In conventional engines an insulating blanket is attached to the panels, however, this is heavy and costly. Cooling film means are configured to pass bypass air through and over an internal surface of the panel.