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:
Oct. 01, 2019
Filed:
May. 12, 2016
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/52 (2006.01); F04D 29/02 (2006.01); F01D 21/04 (2006.01);
U.S. Cl.
CPC ...
F01D 21/045 (2013.01); F05D 2250/184 (2013.01); F05D 2250/61 (2013.01); F05D 2300/603 (2013.01);
Abstract
The present invention provides a gas turbine engine comprising a tubular containment casing surrounding a rotary fan blade assembly. The radially outer perimeter (and optionally the radially inner perimeter) of the radial cross-sectional profile of the containment casing is non-circular e.g. polygonal, corrugated, fluted or wavy.