Abstract: A method of using a burner-based system to produce diesel exhaust gas that contains particulate matter of a desired composition, to simulate the PM matter in exhaust produced by a production-type diesel internal combustion engine.

Abstract: A method for accelerated aging of an automotive catalytic converter under conditions incorporating cold start simulation.

Abstract: A secondary air injector for use with an exhaust flow simulation system. A typical exhaust flow simulator is a burner-based system, in which exhaust from a combustive burner is exhausted through an exhaust line. The secondary air injector is placed downstream the burner to create a desired thermal condition or composition of the exhaust gas. The injector comprises a hollow ring fitted around the exhaust line, with multiple holes for evenly injecting the air into the exhaust line.

Abstract: A burner-based exhaust gas generation system, having a blower for providing air into the system. The blower is controlled to compensate for variations in mass air flow into the system.

Abstract: A burner-based exhaust gas generation system, for producing exhaust gas, typically for use in testing exhaust system devices. Post-burner exhaust gas is recirculated back to a main exhaust line, and used for purposes such as cooling or enhancing the burner output.

Abstract: The present application relates in general to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions.

Abstract: A method and system for controlling the temperature of recirculated exhaust gas in an exhaust gas recirculation (EGR) system, such as those used in connection with diesel engines. An EGR loop (which may be either a high pressure loop or a low pressure loop) has a dual-leg segment with an EGR cooler on one leg and an EGR heater on the other leg. By means of a valve, the EGR gas may be diverted to either one leg or the other, thereby providing either cooled or heated EGR gas to the engine.

Abstract: A method and systems for supplying oxygen-enriched feedgas to a reformer. The reformer is placed on an exhaust bypass line, which has a valve upstream the reformer, for opening and closing the flow of exhaust gas into the bypass line. The bypass line receives atmospheric air at a venturi, and this air is mixed with the exhaust gas to supply feedgas to the reformer. The output of the reformer is directed via the bypass line to a point on a main exhaust line upstream an emissions control device, such as a NAC.

Abstract: The present application provides a method for evaluating one or more components using a non-engine based test system, the method comprising: providing a non-engine based test system comprising a combustor in fluid communication with the one or more component; supplying fuel and air to the combustor under feed conditions comprising a controlled air to fuel ratio (AFR), the feed conditions being effective to produce a feedstream flowpath; combusting at least a portion of fuel in the feedstream flowpath under combustion conditions effective to produce an exhaust gas while preventing substantial damage to the combustor; and, exposing the one or more components to the exhaust gas under alternate conditions comprising substantially any conditions other than those selected from the group consisting of accelerated aging conditions and drive cycle conditions.

Abstract: A method for testing one or more test components comprising: providing a non-engine based test system comprising a combustor in fluid communication with the one or more test components; supplying air and fuel to the combustor at an air to fuel ratio (AFR) and under feed conditions effective to produce a feedstream flowpath, wherein the fuel comprises one or more alternative fuel which is gaseous at ambient conditions comprising atmospheric pressure and a temperature of about 20° C.

Abstract: Method for treating a component using a non-engine based test system to produce and/or to regenerate a contaminated component comprising contaminant particulates from diesel exhaust.