Abstract An antipollution system for internal combustion engines in which the air pollutants in the exhaust gases are completely burned to produce an exhaust gas from the engine which is substantially free of air-polluting materials. An air injector is positioned in the exhaust stream to provide the necessary oxygen to burn the pollutants. The exhaust gases are fed through an air injector and combustion chamber unit which is heated by the exhaust gases and remains at a relative high temperature while the engine is operating so as to complete the burning of all air-polluting materials contained in the exhaust gases in the presence of the supplied air. The air is forced-fed by any desired blower and optionally includes air extracted from the crankcase in engines so equipped.
A device as claimed in claim 1 wherein means are provided in said unit for directing the exhaust gases passing therethrough in a spiral path.
Claim 2
Dependent Claim
16 words
A device as claimed in claim 2 wherein said means includes a plurality of spiral vanes.
Claim 3
Dependent Claim
29 words
A device as claimed in claim 1 wherein said housing extends across a plurality of exhaust passages and is provided with a combustion chamber unit for each exhaust passage.
Claim 4
Dependent Claim
32 words
A device as claimed in claim 4 wherein an air divider is mounted in said housing for dividing and directing the air flowing therein for equal distribution to each of said units.
Claim 5
Dependent Claim
22 words
A device as claimed in claim 1 wherein said last named means includes a plurality of low heat conducting heat-resistant sealing gaskets.