AIR SUPPLY PLUG WITH EXTRUSION PREVENTING PASSAGE

摘要

PROBLEM TO BE SOLVED: To prevent the failure of diaphragm of an accumulator. SOLUTION: An accumulator is provided with a bladder 5 to partition a container body 1 having an air supply plug hole 10 into a gas chamber 6 and a liquid chamber 7 and an air supply plug 15 attached to the air supply plug hole 10 as well as having a gas passage 20; the gas passage of the air supply plug hole 10 is communicated with the gas chamber 6 through an extrusion preventing passage hole 25.