US Patent No: 7,861,521

Number of patents in Portfolio can not be more than 2000

Method for regenerating a diesel particulate filter

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ALSO PUBLISHED AS: 20090235649
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Importance

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Abstract

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. At a determined time, a second operational mode is initiated where a relatively larger amount of fuel is injected into the exhaust stream and is oxidized within the oxidation catalyst, thereby raising the exhaust temperature sufficiently to combust substantially all of the soot trapped on the diesel particulate filter.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DONALDSON COMPANY, INC.MINNEAPOLIS, MN762

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Angelo, Theodore G West St. Paul, MN 11 73
Zhang, Wenzhong Savage, MN 101 1031

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (6)
5,746,989 Method for purifying exhaust gas of a diesel engine 122 1996
6,032,461 Exhaust emission control apparatus for internal combustion engine 47 1998
6,546,721 Exhaust gas purification device 25 2001
7,159,391 Method for restricting excessive temperature rise of filter in internal combustion engine 14 2004
7,484,359 Exhaust purifying apparatus for internal combustion engine 1 2005
7,347,043 Exhaust gas purifier for internal combustion engine 7 2006
 
FORD GLOBAL TECHNOLOGIES, LLC (5)
6,813,882 System and method for removing NOx from an emission control device 27 2002
6,766,641 Temperature control via computing device 37 2003
6,983,589 Diesel aftertreatment systems 16 2003
6,973,776 Exhaust gas aftertreatment systems 17 2003
6,990,800 Diesel aftertreatment systems 7 2003
 
EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH (4)
6,534,021 Heat-resistant and regeneratable filter body with flow paths and process for producing the filter body 33 1998
7,128,772 Filter assembly, process for producing the filter assembly and filter body having the filter assembly 7 2004
7,055,314 System having open particulate filter and heating element, for cleaning exhaust gases from mobile internal combustion engines 12 2004
2005/0232,830 High-temperature-resistant coated fiber layer and particulate trap with the coated fiber layer 12 2005
 
JOHNSON MATTHEY PUBLIC LIMITED COMPANY (4)
6,294,141 Emission control 54 1997
6,863,874 Process and apparatus for treating combustion exhaust gas 29 2001
2006/0185,352 Exhaust system for a lean-burn ic engine 4 2003
7,111,453 Emissions control 7 2005
 
NISSAN MOTOR CO., LTD. (3)
5,207,990 Exhaust gas purifying device for internal combustion engine 37 1991
6,916,450 Exhaust gas purifying system and method 24 2001
7,007,462 Combustion control apparatus for internal combustion engine 8 2004
 
CATERPILLAR INC. (2)
5,522,218 Combustion exhaust purification system and method 92 1994
6,862,881 Method and apparatus for controlling regeneration of a particulate filter 12 2003
 
FLEETGUARD, INC. (2)
6,669,913 Combination catalytic converter and filter 26 2000
6,582,490 Pre-form for exhaust aftertreatment control filter 33 2001
 
ISUZU MOTORS LIMITED (2)
6,484,495 Device for purifying exhaust gas of diesel engines 14 2001
6,742,331 Device for purifying exhaust gas of diesel engines 23 2002
 
Texaco Inc. (2)
4,372,111 Method for cyclic rejuvenation of an exhaust gas filter and apparatus 28 1980
4,416,674 Filter for treating a particle-carrying gaseous stream 20 1982
 
UMICORE AG & CO. KG (2)
5,157,007 Catalyst for purification of exhaust gases of diesel engines and method of use 53 1991
2002/0170,433 Process and device for removing soot particles from diesel engine exhaust gas 4 2002
 
CLEAN DIESEL TECHNOLOGIES, INC. (1)
2005/0132,674 Particulate matter reducing apparatus 4 2004
 
DAIMLERCHRYSLER AG (1)
6,805,849 System for NOx reduction in exhaust gases 35 2001
 
Donaldson Company, Inc. (1)
6,673,136 Air filtration arrangements having fluted media constructions and methods 140 2001
 
Emitech Gesellschaft Fur (1)
2006/0080,953 Method for regenerating a particle trap and exhaust system 10 2005
 
ENGELHARD CORPORATION (1)
7,078,004 Diesel oxidation catalyst 21 2003
 
FORD GLOBAL TECHNOLOGIES, INC. (1)
6,199,375 Lean catalyst and particulate filter control system and method 23 1999
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
7,021,047 Diesel exhaust aftertreatment device regeneration system 13 2004
 
INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC (1)
7,082,753 System and methods for improved emission control of internal combustion engines using pulsed fuel flow 38 2003
 
JOHNSON MATTHEY, INC. (1)
4,902,487 Treatment of diesel exhaust gases 144 1988
 
MAN TRUCK & BUS AG (1)
6,119,448 Method for metering a reducing agent into NO.sub.x -containing exhaust gas of an internal combustion engine 76 1998
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
4,652,286 Exhaust gas filter 111 1985
 
MAZDA MOTOR CORPORATION (1)
2007/0012,031 FUEL CONTROL FOR DIESEL ENGINE HAVING PARTICULATE FILTER 4 2006
 
MITSUBISHI FUSO TRUCK AND BUS CORPORATION (1)
7,000,384 Exhaust emission control device of engine 8 2003
 
MITSUBISHI HEAVY INDUSTRIES, LTD. (1)
6,023,930 Black smoke eliminating device for internal combustion engine and exhaust gas cleaning system including the device 17 1999
 
ROBERT BOSCH GMBH (1)
2004/0013,579 Device for treating exhaust gases 7 2003
 
Robertshaw Controls Company (1)
4,449,362 Exhaust system for an internal combustion engine, burn-off unit and methods therefor 24 1981
 
SOUTHWEST RESEARCH INSTITUTE (1)
6,293,096 Multiple stage aftertreatment system 54 1999
 
TEMIC AUTOMOTIVE OF NORTH AMERICA, INC. (1)
5,996,337 Dynamic calorimetric sensor system 34 1998
 
THE REGENTS OF THE UNIVERSITY OF MICHIGAN (1)
4,686,827 Filtration system for diesel engine exhaust-II 38 1986
 
Other [Check patent profile for assignment information] (1)
2005/0198,942 Exhaust gas aftertreatment systems 3 2005

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
WESTPORT POWER INC. (1)
8,631,647 System and method for regenerating an engine exhaust after-treatment device 0 2011

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