Two stroke engine having exhaust timing control valve means

Details Two stroke engine having exhaust timing control valve means Two stroke engine having exhaust timing control valve means

1981-10-26

1983-08-09

Burns, Wendell E.

Internal-combustion engines

Starting device

For airplane

123 65V, 123 65PE, 123179SE, 123179R, 123323, 123340, F02N 1700, F02B 7502, F02D 906

Patent

active

043972721

ABSTRACT:
A two stroke engine having an exhaust port formed in the cylinder wall. At the upper portion of the exhaust port, there is provided a rotary type exhaust timing control valve which is adapted to be rotatably actuated to control the exhaust timing in accordance with the engine speed. The control valve is interconnected with the engine starting mechanism so that the control valve is forcedly driven by the starting mechanism to thereby eliminate valve seizure.

REFERENCES:
patent: 4121552 (1978-10-01), Mithuo et al.
patent: 4202297 (1980-05-01), Oku et al.
patent: 4285311 (1981-08-01), Iio
patent: 4321893 (1982-03-01), Yamamoto
patent: 4325335 (1982-04-01), Shibata
patent: 4333431 (1982-06-01), Iio et al.
patent: 4341188 (1982-07-01), Nerstrom
patent: 4364346 (1982-12-01), Shiohara
patent: 4368703 (1983-01-01), Shibata

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