Effects of swirl and squish on S. I. engine combustion and emission
Conference
·
OSTI ID:7313982
The effect of intensified swirl and squish on combustion and emissions in a spark-ignition engine was studied using a four cylinder, 1.4 liter engine. Swirl was intensified by modifying intake port angle and squish was controlled by modifying squish area and clearance. From the test results it was found that the increased intensity of swirl, squish and swirl-squish combination was highly effective to increase burning velocity, to improve cycle to cycle combustion fluctuation, fuel economy and driveability. Especially, it was shown that swirl was effective in the initial stage of combustion and swirl-squish combination was influential in the whole stage of combustion.
- OSTI ID:
- 7313982
- Report Number(s):
- CONF-770205-6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
330701 -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
ENGINES
EXHAUST GASES
FLAMES
FLUCTUATIONS
FLUID FLOW
FUEL ECONOMY
FUEL-AIR RATIO
GAS FLOW
GASEOUS WASTES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
KINETICS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SPARK IGNITION ENGINES
TESTING
VARIATIONS
WASTES
330101* -- Internal Combustion Engines-- Spark-Ignition
330701 -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
ENGINES
EXHAUST GASES
FLAMES
FLUCTUATIONS
FLUID FLOW
FUEL ECONOMY
FUEL-AIR RATIO
GAS FLOW
GASEOUS WASTES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
KINETICS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SPARK IGNITION ENGINES
TESTING
VARIATIONS
WASTES