Four-cycle reciprocating-piston internal combustion engine

Details Four-cycle reciprocating-piston internal combustion engine Four-cycle reciprocating-piston internal combustion engine

1976-03-02

1978-03-07

Croyle, Carlton R.

Internal-combustion engines

Noncompression

123 32SP, F02B 1912, F02B 1918

Patent

active

040773680

ABSTRACT:
A four-cycle reciprocating-piston internal combustion engine having a main combustion chamber connected by a spill port with an unflushed ignition chamber. A fuel injection nozzle and a spark plug are arranged at the ignition chamber at angles with respect to one another. Fuel supply means are also provided at the main combustion chamber for supplying a substantial majority of the fuel consumed by the engine during operation. In order to maximize the effectiveness of the ignition chamber, while minimizing the high peak pressures, the ignition chamber and spill port are constructed so as to have an extensive homogenization of the fuel proportion injected into the ignition chamber. In preferred embodiments, the ratio of the volume of the ignition chamber to the total compression volume of the engine is in the range of 0.10 to 0.30 and the ratio of the volume of the spill port to the total compression volume is in the range of 0.01 to 0.25. Further, the injection nozzle provides between 2 and 10% of the total maximum full-load quantity of fuel for the engine and the injection of fuel into the ignition chamber is initiated during the intake stroke movement of the piston bounding the main combustion chamber.

REFERENCES:
patent: 2201221 (1940-05-01), Bokemuller
patent: 2758576 (1956-08-01), Schlamann
patent: 3207141 (1965-09-01), Freeman et al.
patent: 3304922 (1967-02-01), Hideg
patent: 3508530 (1970-04-01), Clawson
patent: 3824965 (1974-07-01), Clawson
patent: 3890942 (1975-06-01), Date et al.
patent: 3905343 (1975-09-01), Ryan

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