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:
Jul. 09, 2024
Filed:
Oct. 06, 2021
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Richard Freer, Saint-Basile-le-Grand, CA;
Antwan Shenouda, Mississauga, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 19/02 (2006.01); F02C 7/266 (2006.01); G05D 23/24 (2006.01); H05B 1/02 (2006.01); F23Q 7/00 (2006.01);
U.S. Cl.
CPC ...
F02P 19/02 (2013.01); F02C 7/266 (2013.01); G05D 23/2401 (2013.01); H05B 1/023 (2013.01); F05D 2220/32 (2013.01); F05D 2260/99 (2013.01); F23Q 7/001 (2013.01);
Abstract
A method for operating a glow plug includes controlling a temperature of the glow plug by switching between applying a voltage Vand applying a voltage V<Vto the glow plug. Applying the voltage Vand applying the voltage Vcauses a glow plug current to oscillate about a glow plug current threshold. The glow plug current threshold is associated with one of the voltage Vand the voltage V. The method includes monitoring the glow plug current at the one of the voltage Vand the voltage V.