David A Akers

US Patent:

20180171852, Jun 21, 2018

Filed:

Dec 15, 2016

Appl. No.:

15/381018

Inventors:

- Peoria IL, US
David Allen AKERS - Morton IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F01N 3/28
B01D 53/94

Abstract:

A retention system for use with an aftertreatment module is disclosed. The retention system may include a first support mat disposed on at least one surface of the at least one catalyst substrate. The retention system may also include at least one support plate having a corrugated portion disposed on the first support mat. The retention system may further include a second support mat disposed on the corrugated portion.

US Patent:

20160250593, Sep 1, 2016

Filed:

May 9, 2016

Appl. No.:

15/149380

Inventors:

- Peoria IL, US
Chiranjeevi Mangamuri - Peoria IL, US
Scott M. Peters - Edwards IL, US
Cory A. Brown - Peoria IL, US
David A. Akers - Morton IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B01D 53/94
F01N 3/10
F01N 13/18
F01N 3/20

Abstract:

An aftertreatment assembly is disclosed. The aftertreatment assembly includes a housing including an inlet and an outlet. A chamber is disposed downstream of the inlet, and is axially to the inlet. At least one bank of catalyst module is disposed downstream of the chamber, and is extending laterally from the chamber. A plenum is disposed over the chamber, and is extending laterally from the at least one bank of catalyst module. At least one first sealing member is disposed between the at least one bank of catalyst module and the chamber and the plenum. The at least one first sealing member having a first portion and a second portion between the plenum and the chamber.

US Patent:

20160245142, Aug 25, 2016

Filed:

Feb 23, 2015

Appl. No.:

14/628836

Inventors:

- Peoria IL, US
James J. Driscoll - Dunlap IL, US
David A. Akers - Morton IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F01N 3/28
F01N 3/20

Abstract:

A reductant injector mount is provided. The reductant injector mount includes a mounting region configured to connect to an exhaust conduit. The reductant injector also includes a contoured region formed in the mounting region. The contoured region is configured to increase a velocity of an exhaust gas flow through the contoured region. The contoured region is also configured to reduce a recirculation of the exhaust gas flow through the contoured region. Further, the reductant injector mount includes a cut out portion provided on the contoured region. The cut out portion is configured to receive a reductant injector tip therethrough.

US Patent:

20150315948, Nov 5, 2015

Filed:

Jul 14, 2015

Appl. No.:

14/798533

Inventors:

- Peoria IL, US
Raymond U. Isada - Peoria IL, US
David A. Akers - Morton IL, US
Thomas W. Manning - Metamora IL, US
Chiranjeevi Mangamuri - Peoria IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F01N 3/28
F01N 3/20

Abstract:

A modular aftertreatment assembly for an engine system is provided. The modular aftertreatment assembly includes a housing having a first section, a second section, and a third section. The modular aftertreatment assembly also includes a mixing tube positioned within and extending from the second section of the housing. The modular aftertreatment assembly further includes a diffusion assembly having a first diffusion and a second diffusion plate. The modular aftertreatment assembly includes a selective catalytic reduction assembly. The modular aftertreatment assembly also includes a plurality of perforations provided on an outlet face of the first bank of the plurality of catalysts and the second bank of the plurality of catalysts respectively. The modular aftertreatment assembly further includes a pair of outlets provided in association with the first and third sections of the housing respectively.

US Patent:

20140338643, Nov 20, 2014

Filed:

May 15, 2013

Appl. No.:

13/894633

Inventors:

- Peoria IL, US
Scott R. Schuricht - Edwards IL, US
David Allen Akers - Morton IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02M 25/07

US Classification:

12356812

Abstract:

A heat exchanger for an exhaust gas recirculation unit is provided. A tube core of the heat exchanger includes a plurality of coolant channels disposed between a plurality of exhaust gas tubes extending from an upstream face to a downstream face. A coolant inlet line and a first coolant outlet line is disposed in a first quarter section of the tube core defined between the upstream face and one fourth of a length of the tube core adjacent to the upstream face. The first coolant outlet line is configured to draw at least a portion of a coolant flow across the upstream face and into the first coolant outlet line. Further, a second coolant outlet line is provided and is configured to discharge a remaining portion of the coolant flow from the plurality of coolant channels that was not drawn out of the first coolant outlet line.