INTERNAL COMBUSTION ENGINE HAVING COMBUSTION CHAMBER WITH BLENDED HEMISPHERICAL AND PENT-ROOF PORTIONS
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United States of America Patent
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N/A
Issued Date -
Nov 24, 2011
app pub date -
May 20, 2011
filing date -
May 21, 2010
priority date (Note) -
Abandoned
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Abstract
An internal combustion engine is provided including an engine block, a cylinder head mounted on the engine block including a combustion face forming a portion of a combustion chamber, wherein the combustion face includes a pent-roof portion and a hemispherical shaped portion. A first intake valve port formed in the cylinder head includes a first intake valve port opening formed in the pent-roof portion while a second intake valve port formed in the cylinder head includes a second intake valve port opening formed in the pent-roof portion. An exhaust valve port formed in the cylinder head includes an exhaust valve port opening formed in the hemispherical shaped portion. A transition portion may also be included to blend the combustion face connecting the pent-roof and the hemispherical portions. One or more spark plug bore openings are formed and optimally positioned in the combustion face.
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