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:
Nov. 22, 2022
Filed:
Feb. 17, 2020
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Sylvain Lamarre, Boucherville, CA;
Alexandre Charest, Montreal, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 19/02 (2006.01);
U.S. Cl.
CPC ...
F01D 19/02 (2013.01); F05D 2220/323 (2013.01); F05D 2260/85 (2013.01); F05D 2260/98 (2013.01); F05D 2260/99 (2013.01); F05D 2270/303 (2013.01); F05D 2270/313 (2013.01);
Abstract
Methods and systems for starting an engine are provided. A cold-start request to start the engine in a first operating condition associated with a predetermined engine temperature range is obtained. In response to obtaining the cold-start request, an amount of boost fuel to provide to the engine is determined, based on at least one second operating condition of the engine. The engine is started by supplementing a baseline fuel flow to the engine with the amount of boost fuel.