Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2011-05-31
2011-05-31
Vo, Hieu T (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S0730AD
Reexamination Certificate
active
07953541
ABSTRACT:
Methods and systems are provided for operating an internal combustion engine having an exhaust system and a plurality of cylinders that utilize fuel and/or oil for combustion and engine lubrication purposes. In one example, a method comprises, while the engine is operating in a low-load mode or an idle mode, successively operating distinct subsets of said cylinders at a cylinder load sufficient to increase an exhaust temperature for burning unburned fuel and/or oil deposited in the cylinders or engine exhaust system. Herein, each successively operated subset comprises at least one but fewer than all of the plurality of cylinders, and the cylinders that are not currently being operated in a subset are operated in a low- or no-fuel mode.
REFERENCES:
patent: 4254752 (1981-03-01), Friddell et al.
patent: 5408973 (1995-04-01), Spangjer
patent: 6283072 (2001-09-01), Lavy et al.
patent: 6476722 (2002-11-01), Bidone
patent: 6604515 (2003-08-01), Marsh et al.
patent: 6904879 (2005-06-01), Kato
patent: 7131403 (2006-11-01), Banga et al.
patent: 7296555 (2007-11-01), Tamma et al.
patent: 7360522 (2008-04-01), Tamma et al.
patent: 2007/0125324 (2007-06-01), Houston
Flynn Paul
Heywood Kirk
Mischler James Robert
Moser Daniel Allan
Roth John Stephen
Alleman Hall McCoy Russell & Tuttle LLP
General Electric Company
Vo Hieu T
Wawrzyn Robert
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