Operating a Gasoline Engine at Constant low Temperature Conditions. The Influence of Different Fuel Droplet Sizes Volkswagen AG

Format:

Conference/Event

Author/Creator:

Manz, P.-W, author.

Conference Name:

1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1996-10-14 : San Antonio, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

AbstractThis paper describes an investigation of one operating point of the transient warmup curve of a gasoline engine. Coolant liquid and oil of this engine have been cooled down to a constant low level in order to perform detailed measurements and an analysis of this particular warmup point.The influence of low coolant temperature, different pressure drop in an air assisted fuel injection system and a variation of ignition angles on specific fuel consumption, exhaust emissions, energy conversion et cetera will be shown. The results show that the suggested test procedure (keeping the coolant temperature at a constant low level) provides the possibility to simulate the behaviour of an engine with air assisted fuel injection during warmup.During this warmup period it is desired to run the engine with retarded ignition timing to realize a fast catalyst warmup. For this case it could be shown that an air assisted fuel injection can be helpful to reduce HC emission and fuel consumption during this period

Notes:

Vendor supplied data

Publisher Number:

961999

Access Restriction:

Restricted for use by site license