Combustion process with charge stratification for an...

Details Combustion process with charge stratification for an... Combustion process with charge stratification for an...

2005-05-17

2005-05-17

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

C123S279000, C123S301000

Reexamination Certificate

active

06892695

ABSTRACT:
In an internal combustion engine having direct injection and spark ignition, charging air is introduced in stratified charge operation through one of two valve-controlled intake channels into a cylinder having a roof-like cylinder head end and a piston having a piston head with a recess oriented toward the intake side. The charging air is introduced forms a swirl flow, into which fuel is introduced. To avoid fuel accumulation on the recess wall, a strong swirl flow with a compact swirl core is achieved through a flow-optimized filling channel, with the swirl core being held in a fixed position in a rotor recess at the latest in the second section of the stroke of the piston toward top dead center such that fuel introduced into the swirl core with a relatively late end of the injection is supplied to an ignition device due to the piston movement toward top dead center.

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International Search Report—Feb. 28, 2003.

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