Two-cycle engine

Details Two-cycle engine Two-cycle engine

1980-03-24

1981-09-08

Burns, Wendell E.

Internal-combustion engines

Two-cycle

Rear compression

123 73R, 123 73A, F02B 3304

Patent

active

042878608

ABSTRACT:
A two-cycle engine of the crank chamber preloading type of the construction in which a crankcase, a cylinder head and a cylinder are clamped together by a plurality of clamping members penetrating the cylinder includes a suction port formed in a wall of the cylinder, an exhaust port formed on a side of the cylinder opposite the suction port, at least one main scavenging port disposed between the suction port and the exhaust port and directed toward the suction port, and at least one ancillary scavenging port disposed above the suction port and juxtaposed against the exhaust port. At least one ancillary scavenging passage branching from at least one main scavenging passage and communicating with the ancillary scavenging port extends around an opening for one of clamping members on the suction side.

REFERENCES:
patent: Re27367 (1972-05-01), Von Seggern et al.
patent: 2481901 (1949-09-01), Bracke
patent: 4075985 (1978-02-01), Iwai
patent: 4191138 (1980-03-01), Jaulmes
patent: 4242993 (1981-01-01), Onishi
patent: 4248185 (1981-02-01), Jaulmes

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