Power plants – Internal combustion engine with treatment or handling of... – Methods
Reexamination Certificate
2006-06-15
2009-11-24
Tran, Binh Q. (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
Methods
C060S280000, C060S285000, C060S286000, C060S295000, C060S301000, C180S065100, C180S065310, C180S065510, C180S065600
Reexamination Certificate
active
07621120
ABSTRACT:
A method for the use of hybrid technology to control lean NOx trap (LNT) and particulate filter regenerations using an electric motor wherein for the LNT (a) the electric motor is adapted to absorb torque excursions of the engine during regeneration of the LNT, (b) wherein the electric motor is adapted to add torque to thereby reduce the air required in the engine and to thereby reduce the amount of fuel needed to regenerate the LNT, or (c) both (a) and (b), or wherein for the particulate filter the electric motor is (a) adapted to load the engine to thereby increase the exhaust temperature to thereby facilitate regeneration of the particulate filter, (b) adapted to use a power source for the electric motor to power an electrically powered particulate filter regeneration unit to thereby facilitate regeneration of the particulate filter, or (c) both (a) and (b).
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Matheaus Andrew C.
Roberts, Jr. Charles E.
Roecker Ryan C.
Bakers Botts LLP
Southwest Research Institute
Tran Binh Q.
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