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. 18, 2017
Filed:
Aug. 04, 2011
Applicant:
John R Webster, Derby, GB;
Inventor:
John R Webster, Derby, GB;
Assignee:
ROLLS-ROYCE PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/24 (2006.01); F01D 11/12 (2006.01); F01D 11/18 (2006.01); F01D 25/06 (2006.01); F04D 29/32 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F01D 25/24 (2013.01); F01D 11/12 (2013.01); F01D 11/18 (2013.01); F01D 25/06 (2013.01); F04D 29/324 (2013.01); F04D 29/666 (2013.01); F04D 29/668 (2013.01); F05D 2260/96 (2013.01);
Abstract
A turbomachine casing assembly including a casing adapted to encase an aerofoil structure, the aerofoil structure having a tip, a leading edge and a trailing edge, the casing substantially surrounding the tip of the aerofoil structure, wherein the casing has a set-back portion extending from a position in the region of the leading edge or the trailing edge of the aerofoil structure part way towards a position in the region of the respective other edge and set back from the remainder of the casing away from the aerofoil structure, such that the set-back portion permits a flow over a corresponding portion of the tip of the aerofoil structure.