Thermally insulating element for an engine valve assembly
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United States of America Patent
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Jul 14, 2009
Grant Date -
May 21, 2009
app pub date -
Nov 15, 2007
filing date -
Nov 15, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cylinder head assembly for an internal combustion engine including a cylinder head at least partially defining a flow path through the engine, including an intake port, an exhaust port, and a combustion chamber disposed between the intake port and the exhaust port. A valve is coupled to the cylinder head and movable relative to the cylinder head to selectively open the combustion chamber to one of the intake port and the exhaust port. A valve spring is positioned between the valve and the cylinder head and biases the valve to a closed position. A thermally insulating washer is positioned between the cylinder head and the valve spring.
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