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:
Jun. 07, 2016

Filed:

Feb. 21, 2014
Applicant:

Cummins Ip, Inc., Columbus, IN (US);

Inventors:

Leon A. LaPointe, Columbus, IN (US);

Edward J. Lyford-Pike, Columbus, IN (US);

Daniel J. Mohr, Scipio, IN (US);

Ashish Gupta, Columbus, IN (US);

James A. Zigan, Versailles, IN (US);

Assignee:

CUMMINS IP, INC., Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 37/00 (2006.01); F02D 41/30 (2006.01); F02M 21/02 (2006.01); F02B 43/00 (2006.01); F02D 41/10 (2006.01); F02D 41/00 (2006.01); F02D 19/06 (2006.01);
U.S. Cl.
CPC ...
F02D 41/30 (2013.01); F02B 37/00 (2013.01); F02B 43/00 (2013.01); F02D 19/061 (2013.01); F02D 19/0647 (2013.01); F02D 41/0007 (2013.01); F02D 41/107 (2013.01); F02D 41/3094 (2013.01); F02M 21/0245 (2013.01); Y02T 10/144 (2013.01); Y02T 10/36 (2013.01);
Abstract

An apparatus for dithering fuel into an internal combustion engine includes a turbine that is powered by the internal combustion engine and a first fuel injector that injects a first fuel into an air stream to create a fuel/air stream. The apparatus also includes an air/fuel compressor that provides a compressed fuel/air stream to the internal combustion engine. The air/fuel compressor is powered by the turbine, and the air/fuel compressor compresses the fuel/air stream to create the compressed fuel/air stream. Additionally, the apparatus includes a second fuel injector that injects a second fuel into the compressed fuel/air stream prior to the compressed fuel/air stream entering the engine and after the compressed fuel/air stream exits the air/fuel compressor.


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