Patent ID: 7299137
Filing Date: 2007-11-20
Classification: F01N,F23D,F23N,G01M,Y02T

Abstract:
1. A burner-based system for producing exhaust that simulates exhaust produced by an internal combustion engine, for delivery of the exhaust to an emissions control device, comprising: a burner system having at least a burner for receiving air and fuel and for combusting fuel to produce simulated engine exhaust; an exhaust line for carrying the exhaust from the burner to the emissions control device; a blower for cooling the exhaust gas; and a computerized control system programmed to control the system to simulate at least one engine drive cycle; wherein the drive cycle is either a cold start or a hot start drive cycle, having a transient phase and a stabilized phase, each phase having a predetermined duration; and wherein the drive cycle is preceded by or followed by a cooling mode accomplished by cooling the exhaust gas with the blower.