Dervis Argun Yetkin

US Patent:

20100269492, Oct 28, 2010

Filed:

Apr 27, 2009

Appl. No.:

12/430194

Inventors:

Adam J. Kotrba - Laingsburg MI, US
Timothy E. Jackson - Dexter MI, US
Dervis A. Yetkin - Ann Arbor MI, US
Arda Gundogan - Ypsilanti MI, US
Timothy Gardner - Canton MI, US

International Classification:

F01N 3/035
F01N 3/10

US Classification:

60297, 60300, 60301

Abstract:

A diesel exhaust gas aftertreatment system () is provided to treat the exhaust () from a diesel combustion process (), such as a diesel compression engine (). The system () includes a burner () that selectively supplies the exhaust () at an elevated temperature to the rest of the system (), a diesel particulate filter () connected downstream from the burner () to receive the exhaust () therefrom, and a NOreducing device () connected downstream from the filter () to receive the exhaust therefrom.

US Patent:

20110061369, Mar 17, 2011

Filed:

Sep 14, 2010

Appl. No.:

12/881858

Inventors:

Dervis A. Yetkin - Ann Arbor MI, US
Ginette Alyce Anderson - Mason MI, US

International Classification:

F01N 3/00
F01N 1/00

US Classification:

60282, 60324

Abstract:

A burner () is provided for use in a diesel exhaust gas treatment system () to treat an exhaust flow () from a diesel combustion process (). The burner () includes an inner housing () defining a combustion flow path () to direct a first portion of the exhaust flow () through an ignition zone () wherein fuel is ignited, an outer housing () surrounding the inner housing () to define an annular bypass flow path () between the inner and outer housings () to bypass a second portion of the exhaust flow () around the ignition zone (), and a mixer () including a plurality of flow restrictor fingers () that extend across the bypass flow path () to restrict an available flow area of the bypass flow path (), and a plurality of mixer fingers () having portions that extend inwardly from a location downstream from the inner housing ().

US Patent:

20090266064, Oct 29, 2009

Filed:

Apr 25, 2008

Appl. No.:

12/150269

Inventors:

Guanyu Zheng - Farmington MI, US
Yongyue Zhang - Ann Arbor MI, US
Jeremy D. Popovich - Clinton MI, US
Dervis A. Yetkin - Ann Arbor MI, US
Adam J. Kotrba - Laingsburg MI, US

International Classification:

F01N 3/00

US Classification:

60317

Abstract:

An exhaust mixer () is provided for use in an engine exhaust system () downstream from an additive injector (). The mixer () includes a first wall structure (), and a second wall structure () carrying a set of mixer vanes (), the second wall structure () being cone shaped and extending radially outwardly from the first wall structure ().