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Air bleeding valve for hydraulic tensioner of an engine and hydraulic tensioner incorporating same
Air bleeding valve for hydraulic tensioner of an engine and hydraulic tensioner incorporating same
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机译:用于发动机的液压张紧器的放气阀和包括该放气阀的液压张紧器
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摘要
An air bleeding valve includes an annular valve element for removing air from oil contained in a hydraulic circuit of a hydraulic tensioner and for suppressing the removal of the oil. An air bleeding valve body is fitted in an air bleeding valve accommodating hole formed in the hydraulic tensioner. A circumferential groove having a rectangular cross section is formed on an outer circumferential surface of the air bleeding valve body. The annular valve element having a rectangular cross section is fitted in the circumferential groove so as to be movable in an axial direction parallel to the axis of the annular valve element, and displaceable in a radial direction toward and away from the axis of the annular valve element. Such air bleeding valve removes air in a hydraulic circuit while suppressing the removal of oil in the hydraulic circuit during starting operation of an engine.
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