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:
May. 28, 2002
Filed:
Sep. 18, 2000
Sivasubramaniam K Sathianathan, Burton on Trent, GB;
Ian G Martindale, Derby, GB;
Michael R Lawson, Derby, GB;
Rolls-Royce plc, London, GB;
Abstract
A gas turbine engine rotor blade containment assembly ( ) comprising a generally cylindrical, or frustoconical, first metal casing ( ) and a plurality of generally cylindrical, or frustoconical axially spaced second metal casing is ( & ). The second metal casings ( ) surrounded and abut the first metal casing ( ). The first metal casing ( ) is relatively hard and tough to contain a fan blade ( ). The second metal casings ( are relatively soft and lightweight to stiffen the first metal casing ( ) and fan blade containment regions (A, B & C). The second metal casing ( ) are arranged coaxially with the first metal casing ( ). One of the second metal casing means ( ) is in a plane (Y) containing the fan blades ( ) of the gas turbine engine ( ). The first metal casing ( ) comprises steel and the second metal casing is ( ) comprise aluminum. The fan blade containment assembly ( ) is lighter for large diameter turbofan gas turbine engine ( ).