Valve-operating mechanism for internal combustion engine
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United States of America Patent
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Jun 22, 2010
Grant Date -
Aug 9, 2007
app pub date -
Feb 7, 2007
filing date -
Feb 8, 2006
priority date (Note) -
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Abstract
A valve-operating mechanism for an internal combustion engine having intake and exhaust valves and valve control members for controlling the intake and exhaust valves. The intake and exhaust valves are configured as dual valves having an outer valve and an inner valve. The valve control members, at least during scavenging, simultaneously close the outer valves of the intake and exhaust valves, producing a non-overlapping state, and simultaneously open the inner valves of the intake and exhaust valves, producing an overlapping state.
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