Automated catalytic reduction system

Details Automated catalytic reduction system Automated catalytic reduction system

1992-12-07

1994-11-29

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

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

60286, 60301, 123526, F01N 318

Patent

active

053678753

ABSTRACT:
The automated catalytic reduction system for an engine exhaust stream includes an oxidation catalyst spaced from a selective catalytic reduction catalyst for reducing nitrogen oxides. A reducing agent is introduced into the space between the two catalysts and is controlled in volume by a volume control valve. Transducers connected to the engine provide real time engine operating parameter signals to a processor which has stored map data indicating instantaneous nitrogen oxide values for various engine loads. The processor selects an instantaneous nitrogen oxide value in response to the engine condition signals and uses this value to calculate a setpoint value for comparison with the flow volume of the reducing agent. Any difference resulting from this comparison causes the processor to operate the control valve to equalize the flow volume with the setpoint value.

REFERENCES:
patent: 3599427 (1971-08-01), Jones
patent: 3864451 (1975-02-01), Lee et al.
patent: 4403473 (1983-09-01), Gladden
patent: 4817568 (1989-04-01), Bedford
patent: 5021227 (1991-06-01), Kobayashi et al.
patent: 5136986 (1992-08-01), Jensen

Affiliated with

Also associated with

Rating

Automated catalytic reduction system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automated catalytic reduction system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated catalytic reduction system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-67305