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Exhaust gas purification system

Patent ·
OSTI ID:6066867
;
The invention discloses an exhaust gas purification system for use in an internal combustion engine equipped with a dual exhaust system. The exhaust gas purification system includes a secondary air supplying port of a secondary air supplying passage opened into a selected exhaust pipe belonging to one of first and second exhaust pipe groups, while an exhaust gas deriving port of an exhaust gas recycling passage for recycling the exhaust gases to a downstream of the carburetor throttle valve is provided in another exhaust pipe belonging to the other of the first and second exhaust pipe groups for effective suppression of NO/sub x/ through accurate control of the amount of exhaust gases to be recycled.
Assignee:
Toyo Kogyo Co., Ltd.
Patent Number(s):
US 4151715
OSTI ID:
6066867
Country of Publication:
United States
Language:
English

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Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330701* -- Emission Control-- Nitrogen Oxides
AFTERBURNERS
AIR POLLUTION CONTROL
CHALCOGENIDES
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
GASEOUS WASTES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
WASTES