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:
Apr. 04, 2017

Filed:

Feb. 03, 2015
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Paul William Schwark, Royal Oak, MI (US);

Justin Michael Kern, Milford, MI (US);

Todd Wallace Helsel, Saint Stephen, SC (US);

Mohamed Moustafa El-Gammal, Windsor, CA;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 43/00 (2006.01); F02M 21/02 (2006.01); F02M 61/14 (2006.01); F02M 69/04 (2006.01); F02M 21/04 (2006.01); F02M 35/10 (2006.01); F02M 26/19 (2016.01);
U.S. Cl.
CPC ...
F02M 21/0278 (2013.01); F02M 21/04 (2013.01); F02M 21/042 (2013.01); F02M 21/047 (2013.01); F02M 26/19 (2016.02); F02M 35/10216 (2013.01); F02M 35/10222 (2013.01);
Abstract

A mixing device for introducing gaseous fuel and recirculated exhaust gas into an intake passage of an engine, the mixing device including a body, an annular channel, the body defining a fuel inlet opening, and a plurality of gaseous fuel injectors fluidly coupled to the fuel inlet opening such that gaseous fuel from the plurality of gaseous fuel injectors is conveyed into the annular channel through the fuel inlet opening. The mixing device further includes a diffuser at a position of the annular channel to diffuse gaseous fuel from the annular channel into the intake airflow in the intake passage, an exhaust gas recirculation (EGR) inlet opening defined by the body and in fluid communication with the intake passage, and an exhaust gas recirculation supply pipe coupled to the EGR inlet opening and configured to direct recirculated exhaust gas from the engine into the intake passage.


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