CONTROLLED REGENERATION SYSTEM
First Claim
1. A regenerative system comprising:
- a catalytic converter having an input and an output;
a first valve connected to the output of the catalytic converter;
a first trap having an input connected to a first output of the first valve; and
a second trap having an input connected to a second output of the first valve;
a second valve having an input connected to an output of the first trap; and
a third valve having an input connected to an output of the second trap.
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Accused Products
Abstract
A system for controlled regeneration of a lean NOx trap for an internal combustion engine. The system may include regenerating one trap or a portion of a lean NOx trap while using another trap or portion of the lean NOx trap for an exhaust, and then interchanging operations. The portions may be individual structures or of one structure. The trap may be a rotating element that is regenerated in part at a time. There may be valves that direct the exhaust gas through one trap and regeneration gas through another trap and vice versa. Also, an exhaust system with regeneration may include temperature, pressure, NOx and differential pressure sensors. A processor may be connected to the sensors. There may be emission sampling lines connected to different parts of the system and to a collector to take, store, detect and analyze samples. A processor may be connected to the collector.
130 Citations
26 Claims
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1. A regenerative system comprising:
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a catalytic converter having an input and an output;
a first valve connected to the output of the catalytic converter;
a first trap having an input connected to a first output of the first valve; and
a second trap having an input connected to a second output of the first valve;
a second valve having an input connected to an output of the first trap; and
a third valve having an input connected to an output of the second trap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An instrumentation-equipped exhaust system comprising:
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a pre-catalyst device having an output;
a dual trap having an input connected to the output of the pre-catalyst device, and having outputs;
a filter having an input connected to the outputs of the dual trap. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An emissions trap assembly comprising:
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a rotatable emissions trap having a first end and a second end;
a first section attached to the first end of the rotatable emissions trap; and
a second section attached to the second end of the rotatable emissions trap. - View Dependent Claims (25, 26)
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Specification