CYLINDER HEAD WITH COUNTERSINK
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Aug 13, 2013
filing date -
Aug 17, 2012
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Abstract
A cylinder head of a static spark-ignited gas engine may include at least two exhaust ports, at least two inlet ports, at least one cylinder axis, and a bottom side. Each inlet port runs to the bottom side of the cylinder head and may have a valve seat for inlet valve. Each valve seat may have a corresponding center axis. At least one inlet port has a countersink in the border area of the bottom side. The countersink may have an offset axis shifted from the corresponding center axis. The countersink may also have a maximum radius with reference to the corresponding center axis. The maximum radius and a straight line may form an angle φ. The straight line may connect the cylinder axis with the corresponding center axis. The angle φ may fulfill the following condition: 70°<=φ<=110°.
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