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:
Mar. 29, 2011

Filed:

Jun. 30, 2009
Applicants:

Marc Vanderslice, Poway, CA (US);

Greg Wiedemeier, San Diego, CA (US);

Inventors:

Marc Vanderslice, Poway, CA (US);

Greg Wiedemeier, San Diego, CA (US);

Assignee:

Clean Air Power, Inc., Poway, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of transitioning between operating modes in a multimode engine including a diesel-only mode and a diesel pilot, gas mode includes first terminating or initiating the supply of a gaseous fuel, depending on whether the system is transitioning to or from the pilot mode, and thereafter decreasing or increasing the diesel fuel supply quantity. Liquid fuel supply quantity is preferably altered in steps rather than discretely in order to avoid exceeding the lean limit of gas lambda. The number of steps and the percentage decrease or increase in each step preferably varies based at least in part on prevailing speed and load conditions.


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