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. 12, 2019
Filed:
Apr. 26, 2016
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventor:
Charlie Kim, Dunlap, IL (US);
Assignee:
Caterpillar Inc., Deerfield, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 17/02 (2006.01); F02B 19/14 (2006.01); F02B 19/10 (2006.01); F02D 41/00 (2006.01); F02M 26/20 (2016.01);
U.S. Cl.
CPC ...
F02P 17/02 (2013.01); F02B 19/108 (2013.01); F02B 19/14 (2013.01); F02D 41/0002 (2013.01); F02M 26/20 (2016.02); F02D 2041/001 (2013.01);
Abstract
A method for operating an internal combustion engine includes operating at least one cylinder pre-chamber in a homogeneous charge compression ignition (HCCI) combustion mode by providing an air/fuel mixture in the pre-chamber that is fluidly connected to the at least one engine cylinder, creating H and OH radicals in the pre-chamber to achieve an ignition in the at least one pre-chamber, determining whether an ignition timing is advanced or delayed relative to a desired timing, and delaying the ignition when the ignition is advanced relative to the desired timing by cooling the pre-chamber and the at least one engine cylinder.