Apparatus for post-treating exhaust gases of an internal...

Details Apparatus for post-treating exhaust gases of an internal... Apparatus for post-treating exhaust gases of an internal...

2005-01-18

2005-01-18

Tran, Hien (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C422S177000, C422S171000

Reexamination Certificate

active

06843966

ABSTRACT:
An apparatus for post-treating exhaust gases of an internal combustion engine, in particular a Diesel engine, having a reduction catalytic converter serving to reduce NOxingredients of the exhaust gases, to which reduction catalytic converter an exhaust pipe leads, and having a reducing agent supply device and a device that generates a pressure difference in the exhaust gas. In the apparatus, the supply of reducing agent is effected via a bypass line, which carries a portion of the exhaust gases past the device that generates the pressure difference in the exhaust gas. The apparatus can use either ammonia or a water and urea solution, or hydrocarbons of the fuel as well as CO as a reducing agent.

REFERENCES:
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Patent Abstracts of Japan, vol. 016, No. 328 (M-1281), Jul. 7, 1992, & JP 04 094410 A (Toyota Motor Corp.), Mar. 26, 1992 Zusammenfassung.

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