Hydraulic tensioner for an endless chain or linkage for use in an internal combustion engine
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United States of America Patent
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Aug 5, 2003
Grant Date -
N/A
app pub date -
Dec 17, 1999
filing date -
Dec 22, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic chain tensioner for an internal combustion engine includes a support body forming a cylindrical housing which receives a piston slidable in the housing and which carries a pressure pad acted upon by the piston and arranged to come into contact with the chain. A high-pressure chamber is defined by the housing and the piston. A source of pressurized hydraulic liquid supplies the tensioner with lubricating liquid and completes the filling of the high-pressure chamber. The high-pressure chamber is connected to the ambient surroundings by gas-purging orifice
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