High-speed photography and image analysis techniques applied to study droplet motion within the porting and cylinder of a 4-valve SI engine

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:178174

Fry, M; Nightingale, C; Richardson, S

High-speed cine photography has been applied to an optically-accessed version of a modern 4-valve, pent-roof, SI engine in order to observe the behavior of fuel under cold starting and warm-up conditions. A wall film was formed on the combustion chamber surface in the vicinity of the valves when fuel was supplied by pintle and disk-type injectors. This wall film survived combustion but was drawn into the exhaust system when the exhaust valves opened. The use of an air-blast atomizer avoided the formation of this wall film, but some wetting of the piston was apparent, as it was with the other types of injector.

• OSTI ID: 178174
• Report Number(s): CONF-9510144-; ISBN 1-56091-702-4; TRN: IM9607%%204
• Resource Relation: Conference: International fuels and lubricants meeting and exposition, Toronto (Canada), 16-19 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of Gasoline additives and performance. SP-1118; PB: 204 p.
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
02 PETROLEUM
SPARK IGNITION ENGINES
FLOW VISUALIZATION
FUEL INJECTION SYSTEMS
PERFORMANCE
HYDROCARBONS
AIR POLLUTION
CATALYTIC CONVERTERS