Patent ID: 7741127
Filing Date: 2010-06-22
Classification: F01N,Y02T,Y10T

Abstract:
1. A method of using a burner-based system to generate exhaust gas containing particulate matter (PM) that simulates PM produced by a diesel powered internal combustion engine, comprising: using a burner to receive air and fuel and to combust the air and fuel to produce the exhaust gas and nascent PM in the exhaust gas; using a heat exchanger to cool the exhaust gas downstream of the burner to a temperature not greater than 650 degrees Centigrade; using an oxygen injector to inject a pre-determined amount of oxygen into the exhaust, thereby providing the exhaust gas with an oxygen content of 2-10 percent by volume; using a quencher downstream the oxygen injector, to cool the exhaust to a temperature sufficiently low to lock the composition of the PM; and using a computerized control system to control the amount and timing of fuel and oxygen supplied to the burner and oxygen injector.