Hydraulic tensioner device
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United States of America Patent
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Oct 18, 2016
Grant Date -
Aug 27, 2015
app pub date -
Feb 13, 2015
filing date -
Feb 21, 2014
priority date (Note) -
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Abstract
In a hydraulic tensioner device in which a high hydraulic pressure chamber is configured between a plunger accommodation hole of a tensioner body accommodating a plunger and the plunger to attenuate reactive force acting on the plunger, the tensioner body includes, in a discharge oil passage for discharging oil leaked from the high hydraulic pressure chamber, a pressure maintenance valve for opening and closing the discharge oil passage, air release passages are formed inside the pressure maintenance valve, and an air release valve for releasing air and preventing air from back flowing is provided in the air release passages.
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