Ash reduction system using electrically heated particulate...

Details Ash reduction system using electrically heated particulate... Ash reduction system using electrically heated particulate...

2011-08-16

2011-08-16

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S274000, C060S276000, C060S297000, C060S311000

Reexamination Certificate

active

07997069

ABSTRACT:
A control system for reducing ash comprises a temperature estimator module that estimates a temperature of an electrically heated particulate matter (PM) filter. A temperature and position estimator module estimates a position and temperature of an oxidation wave within the electrically heated PM filter. An ash reduction control module adjusts at least one of exhaust flow, fuel and oxygen levels in the electrically heated PM filter to adjust a position of the oxidation wave within the electrically heated PM filter based on the oxidation wave temperature and position.

REFERENCES:
patent: 4505726 (1985-03-01), Takeuchi
patent: 4516993 (1985-05-01), Takeuchi
patent: 6978602 (2005-12-01), Ohtake et al.
patent: 6983591 (2006-01-01), Kondo et al.
patent: 7169364 (2007-01-01), Ohtake et al.
patent: 7191592 (2007-03-01), Patil et al.

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