Device for the post-treatment of exhaust gases of an...

Details Device for the post-treatment of exhaust gases of an... Device for the post-treatment of exhaust gases of an...

2006-09-05

2006-09-05

Tran, Binh Q (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S292000, C060S293000, C060S295000, C060S303000, C239S410000, C239S411000, C239S416400, C239S533110, C239S533130, C137S853000

Reexamination Certificate

active

07100366

ABSTRACT:
An apparatus for posttreatment of exhaust gases of an internal combustion engine, using a reducing agent to be introduced into the exhaust gases, in particular a urea or a urea-and-water solution, having an improved mixing chamber into which stored reducing agent, via a reducing agent line, and compressed air via a compressed air line can be introduced to create a reducing agent-air mixture, and means for preventing a reverse flow of reducing agent or reducing agent-air mixture from the mixing chamber into the compressed air line are provided which have a spring-loaded sealing hose. This arrangement assures secure sealing off of an attachable compressed air system from the corrosive reducing agent.

REFERENCES:
patent: 5605042 (1997-02-01), Stutzenberger
patent: 6192677 (2001-02-01), Tost
patent: 6240983 (2001-06-01), Beldham et al.
patent: 6273120 (2001-08-01), Hofmann et al.
patent: WO 01/23715 (2001-04-01), None

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