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:
Dec. 04, 2018
Filed:
Feb. 19, 2016
Applicant:
Rolls-royce Corporation, Indianapolis, IN (US);
Inventor:
Bronwyn Power, Indianapolis, IN (US);
Assignee:
Rolls-Royce Corporation, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/32 (2006.01); F01D 5/14 (2006.01); F04D 29/54 (2006.01);
U.S. Cl.
CPC ...
F04D 29/324 (2013.01); F01D 5/141 (2013.01); F04D 29/544 (2013.01); F05D 2200/23 (2013.01); F05D 2240/301 (2013.01); F05D 2250/70 (2013.01); Y02T 50/673 (2013.01);
Abstract
An apparatus comprises a gas turbine engine having a compressor. The compressor airfoil member is disposed in the compressor and has a camber angle variation along a chord and a concave pressure side surface at a tip portion of the compressor airfoil member from a leading edge to an intermediate-chord location. This first camber shape results in a normalized camber angle that reaches at least 0.4 in the first 10% of normalized chord, and the normalized camber angle is defined as where βis inlet metal angle, βis exit metal angle, and β is a camber angle at a given chord location.