Two cycle internal combustion engine

Details Two cycle internal combustion engine Two cycle internal combustion engine

1996-09-19

1997-07-08

Okonsky, David A.

Internal-combustion engines

Two-cycle

Rear compression

123 73B, 123 65A, F02M 3510, F02B 7502

Patent

active

056450184

ABSTRACT:
A two-cycle internal combustion engine is provided which is capable of preventing the blow-by phenomenon, thereby improving both fuel economy and exhaust purifying performance, and superior in the response of fuel injection volume. In a two-cycle internal combustion engine wherein a chamber is disposed in scavenging passages which provide communication between a crank chamber and a combustion chamber, sealable control valves are disposed in an inlet and an outlet, respectively, of the chamber. A fuel feeding system is provided for the supply of fuel into the chamber. The chamber is brought into communication with one scavenging passage out of a plurality of parallel scavenging passages. The control valve, disposed in the chamber outlet which is on the combustion chamber side and on a scavenging downstream side, is positioned at the bottom part of the scavenging passage communicating with the chamber with respect to the control valve disposed in the chamber inlet which is on the crank chamber side.

REFERENCES:
patent: 3916851 (1975-11-01), Otani
patent: 4191141 (1980-03-01), Franke
patent: 4248185 (1981-02-01), Jaulmes
patent: 4276858 (1981-07-01), Jaulmes
patent: 5271358 (1993-12-01), Katoh et al.

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