System to improve after-treatment regeneration

Details System to improve after-treatment regeneration System to improve after-treatment regeneration

2005-08-09

2005-08-09

Richter, Sheldon J (Department: 3748)

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

C060S605200, C060S284000, C060S285000, C060S313000, C060S323000, C123S568110

Reexamination Certificate

active

06925802

ABSTRACT:
Exemplary methods, devices, and/or systems are suitable for regenerating a plurality of after-treatment units. An exemplary method includes selecting less than all of a plurality of after-treatment units and adjusting air to fuel ratio for less than all of a plurality of combustion chambers of an engine to thereby cause the selected after-treatment units to receive exhaust having hydrocarbon and oxygen concentrations that favor regeneration of the selected after-treatment units. Other exemplary methods, devices and/or systems are also disclosed.

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Kazuhiro Akihama et al., “Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature,” Chemical Engineering Dept., Colorado School of Mines, Golden, CO 80401, Copyright 2001 Society of Automotive Engineers, Inc., pp. 1-15.

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