| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure accumulator which certainly prevents liquid from being leaked to outside. SOLUTION: The pressure accumulator is provided with a pressure accumulating tank 10 which includes an outlet/inlet 14A of liquid and a vent hole 15A. The interior of the pressure accumulating tank 10 is partitioned into a first chamber 11 on the outlet/inlet 14A side and a second chamber 12 on the vent 15A side by a diaphragm 20. The second chamber 12 is provided with a coil spring 30 which urges the diaphragm 20 in the direction decreasing the first chamber 11. The first chamber 11 is capable of storing the liquid while being enlarged whereby the liquid flowing from the outlet/inlet 14A deforms the diaphragm 20 opposing to urging force of the coil spring 30. The first chamber 11 exhausts, from the outlet/inlet 14A, the liquid stored while being expanded whereby the urging force of the coil spring 30 deforms the diaphragm 20. The pressure accumulator is provided with a leakage prevention mechanism 40 which prevents the liquid from leaking from the vent hole 15A. COPYRIGHT: (C)2010,JPO&INPIT
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