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07/19/07 | 33 views | #20070163248 | Prev - Next | USPTO Class 060 | About this Page  060 rss/xml feed  monitor keywords

Device for purifying the exhaust gas of an internal combustion engine

USPTO Application #: 20070163248
Title: Device for purifying the exhaust gas of an internal combustion engine
Abstract: In a device for purifying the exhaust gas of an internal combustion engine, a first auxiliary catalytic apparatus is arranged in one of the two exhaust passages upstream of the exhaust gas merging portion, a second auxiliary catalytic apparatus is arranged in the other of the two exhaust passages, an amount of catalyst carried on the second auxiliary catalytic apparatus is smaller than that on the first auxiliary catalytic apparatus, and only the cylinder-group corresponding to the one of the two exhaust passages is operated at the engine start.
(end of abstract)
USPTO Applicaton #: 20070163248 - Class: 060299000 (USPTO)
Related Patent Categories: Power Plants, Internal Combustion Engine With Treatment Or Handling Of Exhaust Gas, By Means Producing A Chemical Reaction Of A Component Of The Exhaust Gas, Using A Catalyst

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Enclosed volume exhaust diffuser apparatus, system, and method
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Lobed exhaust diffuser apparatus, system, and method
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Power plants

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