Low profile valve stem seal in cylinder head
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United States of America Patent
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Dec 10, 2013
Grant Date -
Feb 7, 2013
app pub date -
Aug 2, 2011
filing date -
Aug 2, 2011
priority date (Note) -
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Abstract
A valve stem seal assembly in an internal combustion engine includes a cylinder head including an aperture therein in communication with a cylinder bore and a recessed pocket surrounding the aperture. A valve guide is received in the aperture and a valve stem is received in the valve guide. A valve seal support includes a radially outwardly extending flange disposed against a surface of the cylinder head external to the recessed pocket and a cylindrical body that extends into the recessed pocket. A valve spring contacts the flange and a resilient seal is secured to the rigid valve seal support and in sealing engagement with the valve stem.
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