Exhaust cleaning device of diesel engine

Details Exhaust cleaning device of diesel engine Exhaust cleaning device of diesel engine

2007-04-05

2009-08-25

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S295000, C060S285000, C060S286000, C060S311000

Reexamination Certificate

active

07578123

ABSTRACT:
An integrating PM amount σ PM as an integrating value of a PM generating amount after DPF regeneration is read (S1). The integrating PM amount and a first threshold value SL1set in advance are compared, and the regenerating period of DPF13is judged (S2). Further, a differential pressure ΔPdf before and after DPF13detected by a differential pressure sensor16, and a second threshold value SL2are compared, and the regenerating period of DPF13is judged (S5). Regeneration processing of DPF13is then performed when the integrating PM amount σ PM attains the first threshold value SL1or tore, or the differential pressure ΔPdf attains a second threshold value SL2or more (S7).

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patent: 7100365 (2006-09-01), Nishizawa et al.
patent: 7313913 (2008-01-01), Okugawa et al.
patent: 2003-155916 (2003-05-01), None

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