Exhaust control valve for engine

Details Exhaust control valve for engine Exhaust control valve for engine

1996-04-17

1997-08-26

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

F02B 2702

Patent

active

056601522

ABSTRACT:
Several embodiments of two-cycle internal combustion engines having exhaust control valves that include butterfly-type valves for minimizing the likelihood of sticking and reducing the area where deposits could form that would interfere with the valve operation. The butterfly-type valves are journaled in a separate valve housing that is mounted in a transversely extending bore that extends through the cylinder block of the engine for facilitating servicing.

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patent: 4805571 (1989-02-01), Humphrey
patent: 5209192 (1993-05-01), Ahmed et al.
patent: 5410993 (1995-05-01), Masuda et al.
patent: 5537958 (1996-07-01), Nishimura et al.

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