Method and apparatus for testing catalytic converter durability
AssigneeSouthwest Research Institute
InventorsMelvin N. Ingalls JR., Gordon J. Bartley, Cynthia C. Webb
Life of this patent
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Abstract
The present application relates in general to an apparatus and to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. The application provides a novel swirl plate and a novel fuel injector which enable the burner to run stoichiometric for extended periods of time.
Claims117
A non-engine based exhaust component rapid aging system (NEBECRAS) comprising a combustor in fluid communication with an air supplier, a fuel supplier, and a catalytic converter, said combustor being adapted to provide substantially continuous and effective stoichiometric combustion of a fuel feedstream to produce an exhaust product.
A swirl plate for a non-engine based exhaust component rapid aging system comprising:
- a substantially central bore;
- an inner set of turbulent jets;
- first and second outer sets of turbulent jets located radially outward from said inner set of turbulent jets, each of said inner set of turbulent jets and second and third outer sets of turbulent jets being adapted to direct air inward in the direction of said central bore;
- an inner set of swirl jets;
- and,
- an outer set of swirl jets located radially outward from said inner set of swirl jets, said inner set of swirl jets and said outer set of swirl jets being adapted to direct air toward an outer periphery of said swirl plate.
A air assisted fuel spray nozzle comprising a fuel injection side and a burner side, said air assisted fuel spray nozzle comprising:
- a flanged male fitting adapted to mate with a central bore in said swirl plate, said flanged male fitting defining at least one air injection bore adapted to provide fluid communication with both a source of air and a source of fuel;
- said air assisted fuel spray nozzle further comprising at least one fuel injection bore adapted to provide fluid communication with both said source of fuel and with said air injection bore.
A NEBECRAS for aging a catalytic converter comprising:
- catalytic converter means;
- combustion means in fluid communication with said catalytic converter means, said combustion means being effective to provide substantially continuous stoichiometric combustion of automotive fuel;
- fuel injection means in fluid communication with said combustion means;
- and,
- lubricant injection means in fluid communication with said catalytic converter means.
The NEBECRAS of claim 74 wherein said combustion means comprises a swirl plate means.
A NEBECRAS for aging a catalytic converter comprising:
- a burner adapted to provide substantially continuous and effective stoichiometric combustion of a feedstream to produce an exhaust product;
- a fuel injector system in fluid communication with said burner;
- a catalytic converter in fluid communication with said exhaust product.
Dependencies are inferred from the claim text.