Hydraulic tensioner with check valve vent
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United States of America Patent
Stats
-
Jul 1, 1997
Grant Date -
N/A
app pub date -
Dec 8, 1995
filing date -
Dec 8, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic chain tensioner has a check valve vent. The tensioner includes a housing having a bore with a fluid filled chamber, a hollow piston slidably received within the bore and biased in a protruding direction by a spring, and a check valve assembly which permits fluid to flow from an external source through the valve and into the fluid filled chamber. The vent includes a disc positioned against the inlet from the external source of fluid. The disc has at least one channel formed on the surface of the disc facing the external source. The channel has a first end at the periphery of the disc and a second end at the center point of the disc.
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