System for assisting regeneration of a storage/releasing No...

Details System for assisting regeneration of a storage/releasing No... System for assisting regeneration of a storage/releasing No...

2007-05-22

2007-05-22

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...

C060S278000, C060S286000, C060S301000

Reexamination Certificate

active

10532129

ABSTRACT:
This system for assisting regeneration of a storage/release NOxtrap integrated into an exhaust system (5) of a motor vehicle diesel engine (4) is characterized in that it includes means (11) for injecting fuel into the cylinders of the engine (4) in the form of pilot injections and main injections and means (12) for controlling the injection means (11) to switch the engine (4) periodically from a standard mode of operation using a lean mixture and pilot injection and main injection, in which NOxare stored in the trap (6), to a regeneration mode of operation using a rich mixture, with at least two pilot or main injections depending on the engine load, in which NOx, are released from the trap (6) and the trap is regenerated.

REFERENCES:
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patent: 1 035 315 (2000-09-01), None
European Patent Office, Patent Abstracts of Japan, Publication No. 200018074, dated Jan. 18, 2000. (Cited in the international search report).

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