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:
Jan. 28, 2020
Filed:
Jan. 18, 2017
Applicant:
Walbro Llc, Tucson, AZ (US);
Inventors:
Martin N. Andersson, Caro, MI (US);
Dale P. Kus, Cass City, MI (US);
Assignee:
Walbro LLC, Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/06 (2006.01); F02D 41/24 (2006.01); F02B 75/02 (2006.01); G01M 15/05 (2006.01);
U.S. Cl.
CPC ...
F02D 41/064 (2013.01); F02B 75/02 (2013.01); F02D 41/068 (2013.01); F02D 41/2454 (2013.01); G01M 15/05 (2013.01); F02B 2075/025 (2013.01); F02B 2075/027 (2013.01); F02D 2200/101 (2013.01); F02D 2400/02 (2013.01); F02D 2400/04 (2013.01);
Abstract
A utility engine air-to-fuel ratio control method in which during an initial or early part of a period of engine continuous operation its stability of operation is determined and if sufficiently stable a test of the air-to-fuel ratio of the air-fuel mixture supplied to the engine is performed and if need be changed to a new air-to-fuel ratio supplied to the engine during the remainder of the period of engine continuous operation. If the engine operation is not sufficiently stable the test is not started or if started is aborted.