Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1997-04-11
1999-12-28
Wolfe, Willis R.
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
60302, 427250, 428623, 422180, 29890, F01N 328, B23D 1500
Patent
active
060065168
ABSTRACT:
Methods and apparatus for reducing the TPM level of a diesel engine exhaust stream by providing a suitable oxidation catalyst into the exhaust train. The oxidation catalyst may be incorporated into a thermal insulative coating on the inner surface of the exhaust train, particularly the exhaust manifold and exhaust pipes prior to the turbocharger. Alternatively, when the exhaust train includes a turbocharger, the catalyst can be in a separate monolithic unit between the engine and the turbocharger. The system may also include an improved diesel oxidation catalyst unit having a metal monolithic substrate. The oxidation catalyst can also be incorporated into a thermal insulative coating inside the cylinders, particularly on non-rubbing surfaces such as The invention also includes the use of a protective mullite top coat on the thermal coating. A further embodiment is the use of a stainless steel bond coat to bind the thermal coating to a metallic substrate, particularly an aluminum substrate.
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Fabel Arthur J.
Kutner Gerald L.
Norris Michael G.
Rice Gary W.
Rotolico Anthony J.
Engelhard Corporation
Wolfe Willis R.
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