Two-stroke-cycle uniflow spark-ignition engine

Details Two-stroke-cycle uniflow spark-ignition engine Two-stroke-cycle uniflow spark-ignition engine

1989-04-18

1990-12-18

Okonsky, David A.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123 65VC, 123 73C, F02B 300

Patent

active

049778757

ABSTRACT:
A two-stroke-cycle uniflow spark-ignition engine. A fluid sucked and pressurized by a compressor driven by the engine is delivered to an annular scavenging chamber formed in a cylinder around the entire circumference thereof, so as to be accumulated therein. The fluid within the annular scavenging chamber is discharged therefrom, through a plurality of scavenging ports formed in the cylinder and capable of opening into a cylinder chamber toward the end of a descending stroke of a piston, and/or into a recess which is above the piston, the discharged fluid serving as a scavenging fluid that flows generating a swirling uniflow. A mixture compressed within the cylinder chamber during an ascending stroke of the piston is ignited by an ignition plug for combustion.

REFERENCES:
patent: 2188368 (1940-01-01), McCarthy
patent: 2246019 (1941-06-01), Steinlein
patent: 2255424 (1941-09-01), Jandasek
patent: 2640422 (1953-06-01), Malin
patent: 2853061 (1958-09-01), Elsbett
patent: 2887993 (1959-05-01), Shallenberg
patent: 4069794 (1978-01-01), Jordan
patent: 4140088 (1979-02-01), de Vulpillieres
patent: 4414940 (1983-11-01), Loyd
patent: 4660513 (1987-04-01), Figliuzzi
patent: 4682570 (1987-07-01), Velencei
patent: 4790270 (1988-12-01), McKay et al.

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