| 摘要 |
PURPOSE: An apparatus for reducing pulsation is provided to effectively reduce pulsation of a pump without installing an apparatus for reducing pulsation at an uppermost port of a pipe. CONSTITUTION: An elastic air bag(10) has a cylindrical air injection port(11). An air injection tube(20) is inserted into the air injection port to be a path of air injected into the air bag. An air injection valve(30) is installed at the air injection tube. A fluid chamber(40) has a fluid inlet port(41) for moving a fluid discharged from a pump into the inlet port, and a fluid discharge port(42) for discharging the fluid. The air bag is formed inside the fluid chamber, wherein the air injection port of the air bag comes out of the fluid chamber to be sealed. An expansion limiting member(50) limits the expansion of the air bag not to clog a fluid path between the fluid inlet and the fluid discharge port. The expansion limiting member has a plurality of fluid pass holes(51) to act a pressure of the fluid on a surface of the air bag.
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