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:
Feb. 18, 2020
Filed:
Apr. 14, 2016
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Assignee:
Pratt & Whitney Canada Corp., Longueuil, Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/22 (2006.01); F23R 3/28 (2006.01); F23D 11/10 (2006.01); F23D 11/24 (2006.01); F23D 11/38 (2006.01); F02M 61/18 (2006.01);
U.S. Cl.
CPC ...
F02C 7/222 (2013.01); F02C 7/22 (2013.01); F23D 11/107 (2013.01); F23D 11/24 (2013.01); F23D 11/383 (2013.01); F23R 3/28 (2013.01); F02M 61/1833 (2013.01); F02M 61/1846 (2013.01); F05D 2220/32 (2013.01); F05D 2250/232 (2013.01); F05D 2250/241 (2013.01); F23D 2900/11101 (2013.01);
Abstract
A gas turbine engine fuel nozzle comprises a spray tip defining a fuel exit passage therethrough that extends along a central axis. The fuel exit passage has an exit orifice aligned with the central axis. The exit orifice is circumscribed by an inner annular surface. The inner annular surface has a spherically-convex profile in cross-section, the profile being constant around the circumference of the inner annular surface.