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:
Jun. 04, 2019
Filed:
Mar. 29, 2016
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
Ashok K. Jain, Tempe, AZ (US);
Michael Winter, New Haven, CT (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/262 (2006.01); F02K 1/12 (2006.01); F02K 1/15 (2006.01); F02K 3/075 (2006.01); F01D 25/24 (2006.01); F02C 9/16 (2006.01); F02K 1/06 (2006.01);
U.S. Cl.
CPC ...
F02C 7/262 (2013.01); F01D 25/24 (2013.01); F02C 9/16 (2013.01); F02K 1/06 (2013.01); F02K 1/1207 (2013.01); F02K 1/15 (2013.01); F02K 3/075 (2013.01); F05D 2220/32 (2013.01); F05D 2260/85 (2013.01); F05D 2270/092 (2013.01);
Abstract
An example turbofan engine starting system includes a core nacelle housing a compressor and a turbine. The core nacelle is disposed within a fan nacelle. The fan nacelle includes a turbofan. A bypass flow path downstream from the turbofan is arranged between the two nacelles. A controller is programmed to manipulate the nozzle exit area to facilitate startup of the engine. In one example, manipulates the nozzle exit area using nozzles, in response to an engine shutdown condition. The nozzles open and close to adjust the nozzle exit area.