Dosing pump assembly

Details Dosing pump assembly Dosing pump assembly

2005-06-23

2008-12-02

Nguyen, Tu M (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S295000, C060S303000, C060S324000

Reexamination Certificate

active

07458204

ABSTRACT:
A dosing pump assembly (9) is provided which is adapted to admix a liquid reducing agent to an exhaust gas flow. The dosing pump assembly includes an assembly housing (12) that houses an electric drive (15), a transmission (16), a membrane pump (17), and control and/or regulating electronics. The assembly housing (10) further includes a pre-mixing device in which the liquid reducing agent is impinged upon with a pressurized gas flow.

REFERENCES:
patent: 6209315 (2001-04-01), Weigl
patent: 6520753 (2003-02-01), Grosjean et al.
patent: 6823663 (2004-11-01), Hammerle et al.
patent: 6905314 (2005-06-01), Danby
patent: 6948918 (2005-09-01), Hansen
patent: WO 02/25074 (2002-03-01), None

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