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. 19, 2020
Filed:
Oct. 02, 2018
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Chaitanya Paruchuri, Southampton, GB;
Philip Joseph, Southampton, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); B64C 3/14 (2006.01); B64C 3/10 (2006.01); B64C 11/18 (2006.01); B63H 1/26 (2006.01); F01D 5/16 (2006.01); F01D 9/04 (2006.01);
U.S. Cl.
CPC ...
F01D 5/146 (2013.01); B63H 1/26 (2013.01); B64C 3/10 (2013.01); B64C 3/14 (2013.01); B64C 11/18 (2013.01); F01D 5/141 (2013.01); F01D 5/16 (2013.01); F01D 9/041 (2013.01); F05D 2240/121 (2013.01); F05D 2250/182 (2013.01); F05D 2260/96 (2013.01);
Abstract
An aerofoil having a leading edge and a trailing edge, the leading edge including a plurality of slits extending toward the trailing edge, such that the leading edge is defined by alternating peaks and troughs. Each peak extends in a generally spanwise direction and defines a peak width, each peak being separated from an adjacent peak in the spanwise direction by a trough. Each trough extends in the generally spanwise direction and is spaced in a chordwise direction from the peak, each trough defining a trough width. A ratio of the peak width to the trough width is between 4:1 and 10:1.