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NO/NO2 Ratio Adjustment Using Non-Thermal Plasma: 10,598,070

Abstract: 

The systems and methods described herein beneficially provide an exit gas having a third, relatively low, NO/NO.sub.2 ratio that closely approximates the NO/NO.sub.2 ratio found in the exhaust of various internal combustion engines. The systems and methods described herein receive a feed gas having a first, relatively high NO/NO.sub.2 ratio. The feed gas is apportioned into a first feed gas portion that is passed through a non-thermal plasma generation system to provide an intermediate gas having a second, relatively very low, NO/NO.sub.2 ratio and a second feed gas portion having the first NO/NO.sub.2 ratio. The intermediate gas and the second feed gas portion are combined to provide the exist gas having the third, relatively low, NO/NO.sub.2 ratio. The systems and methods described herein beneficially provide an exit gas having a variable NO/NO.sub.2 ratio to simulate exhaust from a variety of internal combustion engines. 

Patent Number: 
10,598,070
Date Of Issue: 
03/24/2020
Inventors: 

Cary A. Henry; Scott T. Eakle