Internal combustion engine with spark ignition

Details Internal combustion engine with spark ignition Internal combustion engine with spark ignition

1998-10-16

2000-05-16

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Combustible mixture stratification means

123298, 123301, 123302, F02B 1700, F02B 2300

Patent

active

060621923

ABSTRACT:
In an internal combustion engine with spark ignition and one or more reciprocating pistons, with an ignition device positioned in a roof-shaped top face of the combustion chamber and at least one fuel delivery device for each cylinder for direct fuel delivery essentially in the direction of the ignition device, and with at least one intake port configured so as to generate a swirl movement, the piston exhibits an asymmetrically shaped piston recess whose walls are configured as arcuate flow guiding faces assisting the swirl movement of the cylinder charge. To obtain reliable ignition of the directly introduced fuel on the one hand and maximum liberty in designing the engine on the other hand, the proposal is put forward that the piston recess between opposite walls should essentially constitute an open channel of meander-shaped or S-shaped configuration in plan view, at least one end of the channel forming an inlet area into the recess, which starts at the piston rim.

REFERENCES:
patent: 2600440 (1952-06-01), Smith
patent: 4166436 (1979-09-01), Yamakawa

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