Exhaust reaction assembly for internal combustion engine

Details Exhaust reaction assembly for internal combustion engine Exhaust reaction assembly for internal combustion engine

1976-08-30

1978-10-03

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

041176731

ABSTRACT:
An exhaust reaction chamber assembly is provided for a four-cylinder in-line internal combustion engine having two pairs of exhaust ports, the ports in each pair being closely spaced. The assembly includes an exhaust manifold having two preliminary reaction chambers each connected to receive exhaust gases from one of said pairs of exhaust ports, respectively. A main reaction chamber is provided within the exhaust manifold and two curved passages each connect one of the preliminary reaction chambers to the main reaction chamber, respectively, each passage curving for about 90.degree.. The passages have aligned outlets so that the exhaust gases from each passage are directed toward the other passage. The gases are then directed perpendicular to the inlet in an elongated direction through the main reaction chamber. In one embodiment, the aligned outlets are spaced apart within the main reaction chamber, and in a modification the aligned outlets are formed in a single pipe having a side window opening into the main reaction chamber. A restriction may be placed between each passage and the preliminary reaction chamber to which it is connected, in order to increase residence time.

REFERENCES:
patent: 3413803 (1968-12-01), Rosenlund
patent: 3914936 (1975-10-01), Okitsu
patent: 3965881 (1976-06-01), Sakurai
patent: 3990234 (1976-11-01), Kajitani
patent: 4016846 (1977-04-01), Nakano

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