The application of laser Rayleigh scattering to the local mixture strength measurements in SI engine during intake stroke

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:5138346

Kadota, T

An experimental study was made of the fundamental aspect of the mixture formation in the combustion chamber of automotive spark ignition engine with the multipoint fuel injection. The mixture formation during intake stroke of an engine was simulated by the timed or continuous injection of Freon-113 or Freon-12 into the steady flow of dust-free dry air through an intake port. The vapor concentration in the transparent combustion cylinder was determined with the application of the laser Rayleigh scattering. The results showed that the present optical system was useful for the time and space resolve measurements of vapor concentration in the combustion chamber in the case of liquid and gaseous fuel injections. The spatial distributions of the time averaged vapor concentration were highly heterogeneous. It was also found that the vapor concentration profile was largely affected by the place for fuel injection and the intake valve lift.

• OSTI ID: 5138346
• Report Number(s): CONF-871142-
• Resource Relation: Conference: International fuels and lubricants meeting and exposition, Toronto, Canada, 2 Nov 1987; Other Information: Technical Paper 872151
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
FUEL INJECTION SYSTEMS
HYDRAULICS
METERING
AIR FLOW
COMBUSTION CHAMBERS
FREONS
FUEL-AIR RATIO
GAS FLOW
LASER RADIATION
MIXING
OPERATION
SCATTERING
SPARK IGNITION ENGINES
VAPORS
ELECTROMAGNETIC RADIATION
ENGINES
FLUID FLOW
FLUID MECHANICS
FLUIDS
FUEL SYSTEMS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MECHANICS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RADIATIONS
330101* - Internal Combustion Engines- Spark-Ignition