Improving the performance and fuel consumption of a dual-chamber stratified charge spark ignition engine. Progress report, December 1, 1977--February 28, 1978

Technical Report · Tue Feb 28 04:00:00 EST 1978

OSTI ID:6746386

Sorenson, S C

An improved model for the connecting nozzle between the prechamber and main chamber has resulted in the solution of mass conservation and spatial step size dependencey problems. The qualitative nature of the flow out of the prechamber is also in better agreement with the results of the photographic investigations. Effects of ignition location on the rate of combustion were investigated with the combustion model. Work on the intake gas dynamic model for the prechamber intake system was temporarily discontinued. The use of fuel additives has increased the luminosity of lean flames enabling increased quality of high speed motion pictures at engine speeds up to 1700 rpm. A new main chamber fuel injection system is being installed in order to increase accuracy of fuel air ratio measurements.

• Research Organization: Illinois Univ., Urbana (USA). Dept. of Mechanical and Industrial Engineering
• OSTI ID: 6746386
• Report Number(s): COO-4493-2
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
ADDITIVES
AUTOMOTIVE FUELS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
ENERGY CONSUMPTION
ENGINES
FLAMES
FUEL CONSUMPTION
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUELS
IGNITION
INTERNAL COMBUSTION ENGINES
MATHEMATICAL MODELS
NOZZLES
OXIDATION
PERFORMANCE
RESEARCH PROGRAMS
STRATIFIED CHARGE ENGINES
THERMOCHEMICAL PROCESSES