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U.S. Department of Energy
Office of Scientific and Technical Information

Internal combustion engine with direct fuel injection

Patent ·
OSTI ID:5958522
An internal combustion engine is described, particularly a diesel engine with direct fuel injection, including at least one cylinder having a combustion chamber, a piston moveable within the cylinder and having a crown, a cavity formed in the piston crown and constituting at least part of the combustion chamber of the cylinder, and a fuel injector having a nozzle provided with a plurality of spraying holes facing the cavity in the piston. The fuel injector has an axis oriented at an angle substantially between 15/sup 0/ and 30/sup 0/ to the axis of the cylinder and the cavity in the crown of the piston having an inclined flat substantially elliptical base wall which is oriented perpendicular to the axis of the injector with the center of the base wall being located on an extension of the axis of the injector when the piston is substantially in its top dead center position and a mouth which is centered on the axis of the cylinder.
Assignee:
Fiat Auto S.P.A., Turin
Patent Number(s):
US 4693219
OSTI ID:
5958522
Country of Publication:
United States
Language:
English