Exhaust cleaning system for internal combustion engine

Details Exhaust cleaning system for internal combustion engine Exhaust cleaning system for internal combustion engine

1974-08-12

1977-03-22

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60289, 60303, 60306, F01N 314

Patent

active

040129055

ABSTRACT:
An exhaust cleaning system for use with an automotive multiple-cylinder internal combustion engine including first and second groups of engine cylinders which are to be alternately fired, comprising a thermal reactor composed of an outer tubular structure formed with a first group of exhaust inlet ports leading from the first group of engine cylinders and a second group of exhaust inlet ports leading from the second group of engine cylinders, an inner tubular structure positioned within the outer tubular structure and formed with openings, and at least one air-injection nozzle opening in a longitudinal end portion of the interior or a re-combustion chamber of the inner tubular structure, wherein exhaust gases from each of the first group of engine cylinder are fired in the vicinity of the nozzle openings with the agency of secondary air injected from the nozzle and exhaust gases from each of the second group of engine cylinders are fired by the resultant hot gases advancing through a hot zone of the re-combustion chamber. Additional secondary air and/or secondary fuel may be admixed to the exhaust gases preferably during low-load condition of the engine when the temperature of the exhaust gases lowers.

REFERENCES:
patent: 2944399 (1960-07-01), McCardle
patent: 3066755 (1962-12-01), Diehl
patent: 3302394 (1967-02-01), Pahnke
patent: 3756027 (1973-09-01), Gotoh
patent: 3788070 (1974-01-01), Camarasa
patent: 3826089 (1974-07-01), Nakajima
patent: 3839862 (1974-10-01), Gota
patent: 3872666 (1975-03-01), Bentley
patent: 3872667 (1975-03-01), Rosenlund
patent: 3927525 (1975-12-01), Jacobs

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