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.

Date of Patent:
Aug. 14, 2018

Filed:

Aug. 10, 2015
Applicant:

Caterpillar Motoren Gmbh & Co. KG, Kiel, DE;

Inventors:

Hauke Holst, Altenholz, DE;

Eike Joachim Sixel, Kiel, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02B 19/12 (2006.01); F02B 19/10 (2006.01); F02D 37/02 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0027 (2013.01); F02B 19/1019 (2013.01); F02B 19/12 (2013.01); F02D 37/02 (2013.01); F02D 2200/0602 (2013.01);
Abstract

A method for operating a spark ignited gaseous fuel internal combustion engine is disclosed. The engine may have at least one main combustion chamber and at least one ignition device configured to initiate an ignition event within an ignition region. The method may include supplying pressurized fuel to the ignition region at times between about 30° to about 0° crank angle before the ignition event is initiated by the ignition device for enriching the ignition region with fuel. The method may also include initiating an ignition event in the ignition region for combusting an enriched air/fuel mixture within the ignition region.


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