Exhaust gas purification system for internal combustion engines

Patent · Tue Jul 26 04:00:00 EDT 1977

OSTI ID:5245351

Mizuno, Y; Hiramoto, M

An internal combustion gasoline engine comprises a determined region which is so formed in an exhaust passage from an exhaust valve to a thermal reactor as to pass exhaust gases therethrough in their discharging order, a secondary air passage with a check valve means communicating with the exhaust port near the exhaust valve, and means for maintaining the temperature of exhaust gases over the trigger temperature of the thermal reactor. The exhaust passage has a volume equal to or more than the displacement of the engine and less than four times the displacement volume and has a cross-sectional area less than three times the opening area of the exhaust valve.

• Assignee: Fuji Jikogyo Kabushiki Kaisha
• Patent Number(s): US 4037407
• OSTI ID: 5245351
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330702* -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
AFTERBURNERS
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CONTROL
CONTROL EQUIPMENT
DESIGN
ENGINES
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
GASEOUS WASTES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TEMPERATURE CONTROL
VALVES
WASTES