Exhaust gas cleaning device of internal combustion engines

Patent · Tue Mar 06 00:00:00 EST 1984

OSTI ID:6681052

Ikenoya, Y; Ishida, Y

An exhaust gas cleaning device of an internal combustion engine, comprising a secondary-air supply system connected to exhaust ports to supply the secondary air for cooling the exhaust gas, and reed valve devices installed in the secondary-air supply system and adapted to be opened and closed by the pulsating pressure generated in the exhaust ports when the engine is in operation. The reed valve devices are mounted on the side surface of the cylinder block, each of which has a reed valve chamber and a reed valve that divides the reed valve chamber into an upstream chamber and a downstream chamber and that is adapted to be opened and closed by the pulsating exhaust gas. The upstream chamber is communicated with the open air via a secondary-air intake pipe, and the downstream chamber is connected to the exhaust port via a secondary-air supply passage. The exhaust gas cleaning device is simply constructed so that its maintenance is easy and the presence of the device does not hinder maintenance operation for the internal combustion engine such as replacement of spark plugs, adjustment of tappets, and the like.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha (Japan)
• Patent Number(s): US 4434615
• OSTI ID: 6681052
• Resource Relation: Patent Priority Date: Priority date 23 Jan 1981, Japan; Other Information: PAT-APPL-342429
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
POLLUTION CONTROL EQUIPMENT
DESIGN
SPARK IGNITION ENGINES
AIR
CARBON MONOXIDE
COOLING
EXHAUST GASES
HYDROCARBONS
PULSES
VALVES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
WASTES
330700* - Advanced Propulsion Systems- Emission Control
330101 - Internal Combustion Engines- Spark-Ignition