Regeneration of particulate filter

Details Regeneration of particulate filter Regeneration of particulate filter

2005-02-08

2005-02-08

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By sorber or mechanical separator

C060S274000, C060S285000, C060S295000

Reexamination Certificate

active

06851258

ABSTRACT:
An exhaust passage (2) of a diesel engine (1) is provided with a filter (41) for trapping particulate matter. Regeneration of the filter (41) is divided into first to third phases. In the first phase the filter temperature is raised to the combustion temperature of the particulate matter in a short period of time through control of the exhaust gas temperature. In the second phase, the oxygen concentration of the exhaust gas is held at a predetermined low level while the filter temperature is maintained so as to prevent excessive combustion of particulate matter. In the third phase, wherein the amount of trapped particulate matter has been reduced, the oxygen concentration of the exhaust gas is held at a predetermined high level while the filter temperature is maintained so as to complete the combustion of the trapped particulate matter.

REFERENCES:
patent: 4835963 (1989-06-01), Hardy
patent: 4835964 (1989-06-01), Kume et al.
patent: 5195316 (1993-03-01), Shinzawa et al.
patent: 5287698 (1994-02-01), Shinzawa et al.
patent: 5319930 (1994-06-01), Shinzawa et al.
patent: 5716586 (1998-02-01), Taniguchi
patent: 6405528 (2002-06-01), Christen et al.
patent: 6438948 (2002-08-01), Ono et al.
patent: 2000-179326 (2000-06-01), None

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