Reciprocating internal-combustion engine with direct fuel...

Details Reciprocating internal-combustion engine with direct fuel... Reciprocating internal-combustion engine with direct fuel...

2008-07-08

2008-07-08

Huynh, Hai H (Department: 3747)

Internal-combustion engines

Precombustion and main combustion chambers in series

Having fluid whirling means

C123S276000, C123S301000, C123S307000

Reexamination Certificate

active

07395806

ABSTRACT:
A reciprocating internal-combustion engine having at least two gas intake ports (3) with gas intake valves (6), at least one gas exhaust port (4) with a gas exhaust valve (7) and at least one ignition device (14) per cylinder (1) is provided. The engine can also include a combustion chamber (1.1) formed by a cylinder cover (2.1) and a crown (11.1) of a piston (11). A trough-shaped recess (12) can be provided in the piston crown (11.1) and is bounded by a trough base (12.1) and side walls (16). The recess (12) can intersect a roof ridge (11.2) on the piston crown (11.1) and the trough base (12.1) slopes towards a fuel injection nozzle (8) and ends in a wall zone (12.2) extending steeply upwards on its side facing the fuel injection nozzle (8).

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