Four-stroke-cycle internal combustion engine with fuel injection

Details Four-stroke-cycle internal combustion engine with fuel injection Four-stroke-cycle internal combustion engine with fuel injection

1981-11-17

1983-09-20

Cox, Ronald B.

Internal-combustion engines

Precombustion and main combustion chambers in series

Plural precombustion chambers

123261, 123275, 123282, 123293, F02B 300, F02B 2300

Patent

active

044049382

ABSTRACT:
In a four stroke cycle internal combustion engine, a combustion chamber is disposed above the cylinder head and is connected by a passage to the piston chamber. The piston at its top dead center almost contacts the cylinder head. Inlet and outlet valves and spark plug means are associated with the top portion of the combustion chamber. The injecting device protrudes into the combustion chamber and is upwardly directed. The combustion chamber is surrounded by another chamber, which communicates with the combustion chamber through slots, which open into the top portion of the combustion chamber. The lower portion of the surrounding chamber communicates through openings with the combustion chamber. The openings are smaller in cross-section than the slots so that the explosive gases flow from the combustion chamber into the surrounding chamber and flow back through the openings into the surrounding chamber. This results in turbulence and mixing as in a cyclone so that a good combustion is ensured. Downwardly flaring conical openings are additional provided, which open into the surrounding chamber at its bottom and extend through the cylinder head toward the piston so that the surrounding chamber will be effectively scavenged during the exhaust stroke.

REFERENCES:
patent: 2914042 (1959-11-01), Riesler
patent: 4125094 (1978-11-01), Noguchi

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