System for reducing pollutants in engine exhaust gas
Patent
·
OSTI ID:7355429
A system for reducing concentrations of harmful substances in an exhaust gas from an internal combustion engine before emission into the atmosphere is described. A thermal reactor, made up of a cylindrical inner body forming a reaction chamber, has an inlet located in the central region of the peripheral wall and connected with the outlet of the exhaust manifold. A cylindrical outer body, arranged to enclose the inner body with a space between, is provided with a discharge port. The exhaust manifold discharges two differently composed exhaust gases alternately, depending on the firing sequence of the combustion chambers. The first of the exhaust gases contains relatively large amounts of carbon monoxide and unburned fuel, while the second contains relatively small amounts of carbon monoxide and unburned fuel and a relatively large amount of air.
- Assignee:
- Nissan Motor Co.
- Patent Number(s):
- US 3934411
- OSTI ID:
- 7355429
- Country of Publication:
- United States
- Language:
- English
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