| 摘要 |
<p>In the interior of the housing (15) of an accumulator (10), a metallic bellows (30) and a self-seal mechanism (37) are arranged. The metallic bellows (30) partitions the interior of the housing (15) into a gas chamber (45) and a liquid chamber (41). The self-seal mechanism (37) includes an elastic seal member (35) and a face (36) which the elastic seal member (35) opposes. When the bellows (30) is compressed to the predetermined extent due to introduction of a compressed gas into the gas chamber (45), the elastic seal member (35) is brought into contact with the face (36), thus closing a flow port (18). The elastic seal member (35) has a slanted face (52), so that a wedge-shaped liquid guide gap (55) is produced when the elastic seal member (35) is in contact with the face (36). When, in this condition, the compressed liquid is introduced into the flow port (18), part of the liquid enters the liquid guide gap (55), thus permitting the seal member (35) to easily separate from the face (36).</p> |
