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. 03, 2016
Filed:
Jul. 01, 2009
Applicants:
Angus Roy Smith, Derby, GB;
Dimitris Arzoglou, Derby, GB;
Inventors:
Angus Roy Smith, Derby, GB;
Dimitris Arzoglou, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 7/02 (2006.01); F02C 7/04 (2006.01); B64D 29/00 (2006.01); B64D 33/02 (2006.01); F02K 3/06 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
F02C 7/04 (2013.01); B64C 7/02 (2013.01); B64D 29/00 (2013.01); B64D 33/02 (2013.01); F02K 3/06 (2013.01); G06F 17/50 (2013.01); Y10T 137/0536 (2015.04);
Abstract
An initial geometry for a nacelle provides an intake at the upstream end of the nacelle and an exhaust at the downstream end of the nacelle. The intake has in flow series, an intake lip and a diffuser. The intake lip has a highlight defining the boundary between the inner and outer surfaces of the intake lip. On all longitudinal sections containing the axis of the engine (i) the inner and outer surfaces are tangency matched at the highlight, and (ii) the inner and outer surfaces have their maximum curvatures at the highlight.