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:
May. 19, 2016
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Joseph Kenneth Coldwate, Roscoe, IL (US);
Andreas C. Koenig, Rockford, IL (US);
Assignee:
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/277 (2006.01); F02C 7/268 (2006.01); F02C 7/26 (2006.01); F02C 7/275 (2006.01); F02C 7/262 (2006.01); F02C 3/04 (2006.01); F02C 9/00 (2006.01);
U.S. Cl.
CPC ...
F02C 7/262 (2013.01); F02C 3/04 (2013.01); F02C 9/00 (2013.01); F02C 7/26 (2013.01); F02C 7/268 (2013.01); F02C 7/275 (2013.01); F02C 7/277 (2013.01); F05D 2220/32 (2013.01); F05D 2260/20 (2013.01); F05D 2260/85 (2013.01); F05D 2260/96 (2013.01); F05D 2270/114 (2013.01);
Abstract
A method of cooling a shaft of a gas turbine engine includes moving a control valve towards a position that inhibits fluid flow from a high pressure air source to an air turbine starter and enables fluid flow from a blower motor to the air turbine starter, in response to a gas turbine engine shutdown. The method further includes operating the blower motor to provide air to the air turbine starter.