Exhaust gas purifying system for internal combustion engine
Patent
·
OSTI ID:6541576
An exhaust gas purifying system for an automobile engine including at least first and second engine cylinder has a shutter valve for interrupting the supply of a combustible air-fuel mixture to the first engine cylinder during a particular engine operating condition, a three-way electromagnetically operated valve for controlling the operation of the shutter valve, and a secondary air supply unit including a switching valve for selectively supplying a secondary air to a portion of an exhaust passage upstream of at least one catalyst unit disposed in the exhaust passage.
- Assignee:
- Toyo Kogyo Co Ltd (Japan)
- Patent Number(s):
- US 4345432
- OSTI ID:
- 6541576
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
CATALYTIC CONVERTERS
CONTROL EQUIPMENT
ELECTROMAGNETISM
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MAGNETISM
POLLUTION CONTROL EQUIPMENT
VALVES
330700* -- Advanced Propulsion Systems-- Emission Control
CATALYTIC CONVERTERS
CONTROL EQUIPMENT
ELECTROMAGNETISM
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MAGNETISM
POLLUTION CONTROL EQUIPMENT
VALVES