Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2003-03-27
2009-10-13
Neckel, Alexa D. (Department: 1795)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C422S177000, C422S180000, C422S174000, C422S175000, C422S178000, C422S171000, C422S218000, C422S181000, C422S198000, C055S523000, C055S524000, C055S527000
Reexamination Certificate
active
07601306
ABSTRACT:
A diesel engine particulate filter (DPF) comprising a case cylinder with a filter space formed by the inner retention cylinder and outer retention cylinder which traverse the radial symmetry of the case cylinder. In filter space, the low temperature exothermic catalyst granules group component of precious metals, such as platinum, coexist with a mixture of medium temperature exothermic catalyst carried by granules group filter of foaming stone grains made of base metals, such as nickel and cobalt. Exhaust flow travels from the inner space of the inner side retention cylinder to the filter space where particulate matter (PM) is trapped. PM burned by the medium temperature exothermic catalyst functions by the rise in exhaust temperature obtained from the low temperature exothermic catalyst where hydrocarbon (HC) is burned. As a result, a DPF (1) that burns PM even when the exhaust temperature is low can be realized, without using an electric heater.
REFERENCES:
patent: 3449086 (1969-06-01), Innes
patent: 3874854 (1975-04-01), Hunter, Jr.
patent: 3959183 (1976-05-01), Gospodar
patent: 4148860 (1979-04-01), Goedicke
patent: 5100632 (1992-03-01), Dettling et al.
patent: 5466651 (1995-11-01), Pfefferle
patent: 5665322 (1997-09-01), Kiyohide et al.
patent: 5948355 (1999-09-01), Fujishima et al.
patent: 6077600 (2000-06-01), Atmur et al.
patent: 6248689 (2001-06-01), Manson
patent: 6585788 (2003-07-01), Sugano
patent: 0 387 394 (1989-08-01), None
patent: 1 348 839 (2003-10-01), None
patent: 06-323129 (1994-11-01), None
patent: 09-125931 (1997-05-01), None
patent: 2000-230887 (2000-08-01), None
patent: WO 99/33549 (1999-07-01), None
Notice of Allowance in JP2002-093781, dated Aug. 31, 2007 (English translation).
Blank Rome LLP
Handal Kaity V.
Lenz Environmental Resources Co., Ltd.
Neckel Alexa D.
LandOfFree
Diesel engine particulate filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diesel engine particulate filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diesel engine particulate filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4131154