Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2005-03-15
2005-03-15
Denion, Thomas (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S288000, C060S292000, C060S300000, C060S311000
Reexamination Certificate
active
06865882
ABSTRACT:
A diesel engine exhaust gas purifying device includes a first continuous regeneration type diesel particulate filter in the exhaust gas passage, a by-path by-passing a portion of the exhaust gas passage upstream of the first continuous regeneration type diesel particulate filter, a second continuous regeneration type diesel particulate filter in the by-path, a change-over valve in the exhaust gas passage between the ends of by-path, an exhaust gas temperature-elevating mechanism, an exhaust gas temperature region detecting mechanism, and a control mechanism for controlling the exhaust gas temperature-elevating mechanism and the change-over valve based on the exhaust gas temperature region. When the exhaust gas temperature region of the engine is in a temperature range lower than a predetermined temperature region, the control mechanism actuates the exhaust gas temperature-elevating mechanism and controls the change-over valve so that the exhaust gas passes through the second continuous regeneration type diesel particulate filter.
REFERENCES:
patent: 3791143 (1974-02-01), Keith et al.
patent: 4211075 (1980-07-01), Ludecke et al.
patent: 4485621 (1984-12-01), Wong et al.
patent: 4562695 (1986-01-01), Rao et al.
patent: 4625511 (1986-12-01), Scheitlin et al.
patent: 4835963 (1989-06-01), Hardy
patent: 5063736 (1991-11-01), Hough et al.
patent: 5067320 (1991-11-01), Kanesaki
patent: 5085049 (1992-02-01), Rim et al.
patent: 5097665 (1992-03-01), Kammel
patent: 5195318 (1993-03-01), Shinzawa et al.
patent: 5433074 (1995-07-01), Seto et al.
patent: 5489319 (1996-02-01), Tokuda et al.
patent: 5497620 (1996-03-01), Stobbe
patent: 5517820 (1996-05-01), Kuroda et al.
patent: 5771683 (1998-06-01), Webb
patent: 20020194842 (2002-12-01), Minami
patent: 20030110761 (2003-06-01), Minami
patent: 39 18601 (1990-12-01), None
patent: 41 39 291 (1993-06-01), None
patent: 199 26 138 (2000-12-01), None
patent: 0 341 832 (1989-11-01), None
patent: 0 758 713 (1997-02-01), None
patent: 6-108884 (1994-04-01), None
European Search Report dated Apr. 1, 2004.
Denion Thomas
Isuzu Motors Limited
Nguyen Tu M.
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