Wilbur H Crawley

US Patent:

6871489, Mar 29, 2005

Filed:

Apr 16, 2003

Appl. No.:

10/417392

Inventors:

Prasad Tumati - Greenwood IN, US
John P. Nohl - Indianapolis IN, US
Wilbur H. Crawley - Columbus IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

F01N003/00

US Classification:

60285, 60274, 60286, 60295, 60298, 60300, 60311, 60320

Abstract:

The present invention involves thermal management of an integrated emission reduction system for the removal of particulate matter (PM) and nitrogen oxides (NOx) from diesel engine exhaust streams. The inventive integrated emission reduction system may include a diesel particulate filter (DPF), a heat source for adjusting the temperature of the exhaust stream entering the DPF, at least one selective catalytic reducer of NOx, a heat exchanger for adjusting the temperature of the exhaust stream entering the NOx reducer, and a computing device for monitoring the temperature and/or pressure of the exhaust stream entering the DPF and the NOx reducer, and for controlling the operation of the heat exchanger and heat source, thereby improving the efficiency of the DPF and the NOx reducer.

US Patent:

6918755, Jul 19, 2005

Filed:

Jul 20, 2004

Appl. No.:

10/894548

Inventors:

Randall J. Johnson - Greenwood IN, US
Wilbur H. Crawley - Columbus IN, US
Stephen P. Goldschmidt - Westport IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

F23D003/40

US Classification:

431 7, 431264, 431285

Abstract:

A fuel-fired burner for use with an emission abatement device comprises a pair of electrodes. Each electrode comprises an arc-contact rod to generate an electrical arc therebetween.

US Patent:

7025810, Apr 11, 2006

Filed:

Aug 31, 2004

Appl. No.:

10/931008

Inventors:

Wilbur H. Crawley - Columbus IN, US
Randall J. Johnson - Seymour IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

B01D 46/00

US Classification:

95278, 95 1, 95 18, 95 26, 95273, 552822, 552823, 553853, 55523, 55DIG 10, 55DIG 30, 96417, 96424, 60274, 60311, 431 6, 431 75, 431 77

Abstract:

A method of operating a fuel-fired burner of an emission abatement assembly includes supplying a reduced amount of fuel to the fuel-fired burner in response to detection of a burner shutdown request. Such a reduced fuel supply continues for a predetermined time period after which fuel is no longer supplied to the burner. The supply of both combustion air and atomization air, along with spark generation, continues for a period of time after the fuel is shutoff. An emission abatement assembly is also disclosed.

US Patent:

7118613, Oct 10, 2006

Filed:

Aug 31, 2004

Appl. No.:

10/931028

Inventors:

Wilbur H. Crawley - Columbus IN, US
Randall J. Johnson - Seymour IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

B01D 46/00
F01N 3/025

US Classification:

95278, 95 1, 95 14, 95 19, 95273, 96417, 96420, 96424, 552822, 552823, 553852, 553853, 55467, 55471, 55482, 55523, 55DIG 10, 55DIG 30, 60274, 60286, 60295, 60297, 60311, 431 2, 431 12, 431 14, 431 18, 431 75, 431 77

Abstract:

A control unit for controlling operation of a fuel-fired burner includes a housing having an air inlet which is open to an interior chamber of the housing. An air pump is positioned in the interior chamber of the housing and has an air inlet which is open to the interior chamber of the housing. The air pump generates reduced air pressure in the interior chamber which draws air into the housing and into the pump's inlet. This flow of air cools an electronic controller along with other components position in the housing. The air pump may be operated to draw air from the interior chamber of the housing and supplies the air to a combustion chamber of the fuel-fired burner to facilitate operation of the burner. An associated method of advancing air to a fuel-fired burner is also disclosed.

US Patent:

7243489, Jul 17, 2007

Filed:

Aug 31, 2004

Appl. No.:

10/931091

Inventors:

Randall J. Johnson - Seymour IN, US
Wilbur H. Crawley - Columbus IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

F01N 3/00
F01N 3/02
G01M 19/00

US Classification:

60297, 60311, 731181

Abstract:

A method of monitoring engine performance as a function of soot accumulation in a particulate filter includes determining characteristics of soot accumulation in the filter, analyzing the characteristics, and generating an error signal if the characteristics are indicative of predetermined engine performance conditions. An electronic controller configured to monitor soot accumulation in such a manner is also herein disclosed.

US Patent:

7249455, Jul 31, 2007

Filed:

Dec 23, 2003

Appl. No.:

10/745363

Inventors:

Prasad Tumati - Greenwood IN, US
Wilbur H. Crawley - Columbus IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

F01N 3/00

US Classification:

60287, 60286, 60292, 60295, 60303, 60324

Abstract:

A diesel engine exhaust system includes a NOx absorber and a diesel fuel fired burner operated at an enriched fuel-to-air ratio to generate a sufficient quantity of CO and Hfor regenerating the NOx absorber. A method of operating a diesel exhaust system is also disclosed.

US Patent:

7254938, Aug 14, 2007

Filed:

Dec 16, 2003

Appl. No.:

10/737333

Inventors:

Stephen P. Goldschmidt - Westport IN, US
Wilbur H. Crawley - Columbus IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

F01N 3/00

US Classification:

60275, 60274, 60285, 2042281, 2042294, 2042298, 2042302

Abstract:

A circuit for providing a potential difference across a gap between two electrodes of a fuel reformer, oxides of nitrogen trap or soot filter regenerator for an internal combustion engine or the like. The circuit includes a power source, a transformer including a primary winding and a secondary winding for coupling across the electrodes. The power source is coupled to the primary winding. A switch or switches is/are coupled to the primary winding.

US Patent:

7258723, Aug 21, 2007

Filed:

Sep 27, 2004

Appl. No.:

10/951064

Inventors:

Wilbur H. Crawley - Columbus IN, US
Randall J. Johnson - Greenwood IN, US
Stephen P. Goldschmidt - Westport IN, US

Assignee:

Arvin Technologies, Inc. - Troy MI

International Classification:

B01D 41/04

US Classification:

95 5, 552823, 55DIG 10, 60275, 60311, 95 6, 95 7, 95 20, 95 21, 95 68, 95278, 96 20, 96 22, 96 24, 96 30, 96425

Abstract:

A particulate filter assembly includes an electrode assembly, a particulate filter positioned in an electrode gap defined between two electrodes of the electrode assembly, a power supply electrically coupled to the electrode assembly, and a controller for controlling operation of the power supply to apply a regenerate-filter signal to the electrode assembly to oxidize particulates collected by the particulate filter. An associated method of regenerating the particulate filter is disclosed.