Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-12-20
2009-12-15
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...
C060S274000, C060S278000, C060S285000, C060S297000, C060S303000, C123S090150, C123S568110
Reexamination Certificate
active
07631492
ABSTRACT:
Inhibiting uncontrolled regeneration of a particulate filter fluidly coupled to an exhaust manifold of an internal combustion engine may comprise reducing an oxygen concentration of exhaust gas supplied to the particulate filter if active regeneration of the particulate filter is in progress and rotational speed of the engine speed thereafter drops to an idle speed range from an elevated rotational speed that is greater than the idle speed range. Reducing the oxygen concentration of the exhaust gas supplied to the particulate filter may include any one or combination of reducing the oxygen concentration of intake air supplied to the intake manifold, reducing the air portion of the air-to-fuel ratio of the air-fuel mixture supplied to the engine and removing oxygen from the exhaust gas supplied to the particulate filter.
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PCT International Search Report and Written Opinion dated Sep. 12, 2008 relating to PCT/US07/87761.
Currier Neal W.
Strolia Bradlee J.
Suresh Arvind S.
Yezerets Aleksey
Barnes & Thornburg LLP
Schelkopf, Esq. J. Bruce
Tran Binh Q.
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