Metering pump assembly

Details Metering pump assembly Metering pump assembly

2005-12-29

2011-10-04

Freay, Charles (Department: 3746)

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

C417S413100, C060S307000

Reexamination Certificate

active

08029249

ABSTRACT:
The invention relates to a metering pump assembly for admixing a fluid reduction agent into an exhaust gas flow with a metering pump for delivering the reduction agent and with a premixing device, in which in a mixing region, the reduction agent delivered by the metering pump is mixed with a pressurized gas, wherein the metering pump assembly comprises a pump head with a central plate in which at least the metering pump and the premixing device are arranged.

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