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Chain tensioner, chain tensioner group, and method of manufacturing a chain tensioner
Chain tensioner, chain tensioner group, and method of manufacturing a chain tensioner
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机译：链条张紧器，链条张紧器组以及制造链条张紧器的方法
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摘要
A chain tensioner includes an oil supply passage for supplying hydraulic oil into a pressure chamber defined by a cylinder and a plunger, and a check valve provided at the end of the oil supply passage. A leak gap is defined between the sliding surfaces of the cylinder and the plunger. The plunger is biased by a return spring in the direction in which the plunger protrudes out of the cylinder. A plug is press-fitted in a cylindrical inner periphery of a through hole formed in the plunger to extend from a protruding end surface of the plunger to the pressure chamber to define an air vent passage. It is possible to change the hydraulic damper force simply by replacing the plug with another different type of plug to define a different air vent passage.
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