Internal-combustion engines – Two-cycle – Whirl through piston-controlled ports
Patent
1990-01-16
1991-08-06
Okonsky, David A.
Internal-combustion engines
Two-cycle
Whirl through piston-controlled ports
123 73V, 137855, F02B 7502
Patent
active
050368060
ABSTRACT:
The present invention provides an improved single stage or multiple stage reed valve for use in an air intake of an internal combustion engine. The multiple stage reed valve of the preferred embodiment includes a relatively stiff first stage reed member having ports therein, a relatively flexible second stage reed member comprising multiple reed petals to control flow through the ports in the first stage reed, and means to join each reed petals to an adjacent reed petal to cause the reed petals to move substantially in unison with one another. The present invention provides a reed valve with increased life and which is resistant to material fatigue even under conditions of uneven flow through the air intake.
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"Boyesen RAD Valve--The Ultimate Reed Valve," Dirt Wheels, (Oct. 1988), p. 31.
Johns David J.
Okonsky David A.
Performance Industries, Inc.
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