Exhaust gas purifying device for an internal combustion engine

Details Exhaust gas purifying device for an internal combustion engine Exhaust gas purifying device for an internal combustion engine

1990-12-27

1993-03-23

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60286, 60288, F01N 302

Patent

active

051953188

ABSTRACT:
Parameters which are related to the rate at which particulate matter accumulates and is reburnt, are monitored and the time at which a regeneration is required and/or the length of time a regeneration should be induced, are derived based on the same. The temperature at the inlet and outlet of a trap in which particulate matter is accumulated are monitored and measures such as throttling the induction and exhaust are implement in addition to energizing a heater disposed immediately upstream of the trap as required in order to elevate the trap temperature and to induce and maintain the reburning during a trap regeneration.

REFERENCES:
patent: 4450682 (1984-05-01), Sato
patent: 4549398 (1985-10-01), Oishi et al.
patent: 4558565 (1985-12-01), Kojima
patent: 4698966 (1987-10-01), Distel
patent: 4835963 (1989-06-01), Hardy
Patent Abstracts of Japan, vol. 12, No. 384 (M-753) (Oct. 13, 1988).

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