Two stroke engine having exhaust port timing control valve

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

1979-07-27

1981-08-25

Burns, Wendell E.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123 73V, 123 73SP, 123 73R, 188273, F02D 906

Patent

active

042853117

ABSTRACT:
Two stroke engine having an exhaust port provided with a rotary type timing control valve at the upper portion thereof. The control valve is connected with a centrifugal actuator which is responsive to the engine speed so that the exhaust port is wide open under a high speed engine operation but covered at the upper portion by said control valve under a low speed operation to change the exhaust port timing.

REFERENCES:
patent: 2292805 (1942-08-01), Tippen
patent: 2714879 (1955-08-01), Meulien
patent: 4121552 (1978-10-01), Mithoo

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