Exhaust system

Details Exhaust system Exhaust system

1982-05-26

1983-12-20

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60299, 60313, 60323, F01N 328, F01N 706

Patent

active

044209339

ABSTRACT:
A system for collecting and catalytically cleaning exhaust gases from an engine which is particularly suited for an arrangement wherein the catalyst is in close proximity to the exhaust ports of the engine. Exhaust pipes are employed having common walls extending longitudinally therethrough to separate and convey exhaust gases from two separate cylinders to a common manifold. The manifold is arranged to provide a mixing of the exhaust from a plurality of cylinders and to direct that homogeneous flow to the catalyst. A restriction is provided at the outlet of the manifold chamber and before an expansion chamber into the catalyst. This outlet and the expansion chamber are designed to provide maximum efficiency in distribution of gases to the catalyst and also provide minimum gas flow disruption and back pressure.

REFERENCES:
patent: 3935705 (1976-02-01), Hergoualch
patent: 4002433 (1977-01-01), Oser
patent: 4117672 (1978-10-01), Yamazaki
patent: 4151716 (1979-05-01), Sakurai
patent: 4151717 (1979-05-01), Katsumoto
patent: 4261170 (1981-04-01), Suzuki

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