Exhaust gas purifying system for an internal combustion engine
An exhaust gas purification system for automobile internal combustion engines incorporating a reduction catalyst in series with an oxidation catalyst is described which allows for disposal under the vehicle's floor due to its compact configuration in contrast to prior art designs of larger size. The device consists of a single enclosure in which partition walls define two chambers and a by-pass passage interposed between the chambers. Each chamber contains an exhaust gas catalytic cleaning unit. The outlet of the first chamber is connected to the inlet of the second chamber for serial cleaning of the exhaust. A single valve member is employed to either close the outlet of the by-pass passage and open the outlet passage of the second chamber or open the outlet of the by-pass passage and close the outlet passage of the second chamber.
- Assignee:
- UAutomobiles Peugeot
- Patent Number(s):
- US 3796546
- OSTI ID:
- 7274145
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330700* -- Advanced Propulsion Systems-- Emission Control
AUTOMOBILES
CATALYSTS
CATALYTIC CONVERTERS
CHEMICAL REACTIONS
CONTAINERS
CONTROL EQUIPMENT
DESIGN
DUCTS
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
OXIDATION
POLLUTION CONTROL EQUIPMENT
REDUCTION
VALVES
VEHICLES