Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1977-02-14
1978-05-02
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
60323, F01N 310
Patent
active
040867625
ABSTRACT:
Separate exhaust pipes each receive exhaust gases from a plurality of cylinders of an internal combustion engine. The exhaust pipes merge into a common outlet delivering exhaust gases into a first reaction chamber and then into a second reaction chamber enclosing the first reaction chamber. The second reaction chamber also encloses the exhaust pipes and outlet. The cross section areas of the exhaust pipes, outlet and continuing passageway through the first reaction chamber are substantially the same in effective cross section area to avoid temperature drop in the exhaust gases due to expansion. Oxygen-rich exhaust gases from the engine are held at a high temperature for long residence time to oxidize HC and CO and thereby minimize the quantity of these pollutants discharged into the atmosphere.
REFERENCES:
patent: 2257631 (1941-09-01), Wahlberg
patent: 3302394 (1967-02-01), Pahnke
patent: 3633368 (1972-01-01), Rosenlund
patent: 3692006 (1972-09-01), Miller
patent: 3695238 (1972-10-01), Beerma
patent: 3916850 (1975-11-01), Date
Kajitani Ikuo
Sakurai Yoshitoshi
Hart Douglas
Honda Giken Kogyo Kabushiki Kaisha
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