Two-cycle internal combustion engine

Details Two-cycle internal combustion engine Two-cycle internal combustion engine

1997-11-20

1999-09-07

McMahon, Marguerite

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 73B, F02B 1700, F02B 2504, F02B 6302

Patent

active

059470666

ABSTRACT:
A two-cycle internal combustion engine comprising a combustion chamber, an exhaust port and a scavenging port each opening into the combustion chamber. The opening area of each of the exhaust port and the scavenging port is made as small as possible in relation to the engine displacement so as to restrict the revolutions of the engine crank shaft during a rated output operation of the engine. The width in the lateral direction of the opening of the exhaust port corresponds to an angle of 60.degree. as measured from the center of the combustion chamber, and the width in the lateral direction of the opening of the scavenging port corresponds to an angle of 32.degree. as measured from the center of the combustion chamber.

REFERENCES:
patent: 4258670 (1981-03-01), Thery
patent: 4458636 (1984-07-01), Kania
patent: 4779581 (1988-10-01), Maier
patent: 4876999 (1989-10-01), Schierling et al.
patent: 5237966 (1993-08-01), Katoh et al.
patent: 5471960 (1995-12-01), Nagao et al.
patent: 5671703 (1997-09-01), Otome et al.
patent: 5857449 (1999-01-01), Ishikawa et al.

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