Selective catalytic reduction (SCR) catalyst injection systems

Details Selective catalytic reduction (SCR) catalyst injection systems Selective catalytic reduction (SCR) catalyst injection systems

2008-07-09

2011-10-11

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S303000, C060S317000

Reexamination Certificate

active

08033104

ABSTRACT:
A Selective Catalytic Reduction (SCR) injection system for mixing reductant with exhaust gasses. The system includes a plate disposed between walls of an entrance portion and an egress section of the exhaust pipe. The plate intercepts exhaust gasses entering the entrance section of the exhaust pipe and directs such exhaust gasses through apertures in a wall of a reductant-introducing conduit. The conduit has an outlet disposed in the egress section of the exhaust pipe. The wherein dimensions of the apertures in the wall and dimensions in the outlet of the conduit being selected to increase the velocity of the exhaust leaving the outlet of the conduit into the egress section of the exhaust pipe relative to the velocity of the exhaust gases in the entrance section.

REFERENCES:
patent: 7104359 (2006-09-01), Zelinski
patent: 2003/0110763 (2003-06-01), Pawson et al.
patent: 2007/0169467 (2007-07-01), Shirai et al.
patent: 2008/0223022 (2008-09-01), Amon et al.
patent: WO 2005073526 (2005-08-01), None
patent: WO 2007036347 (2007-04-01), None

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