发明名称 |
PUMP HAVING PULSE MOTION REDUCTION DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pump having a pulse motion reduction device which can further improve pulse motion reduction effect. SOLUTION: A reciprocating pump part 4 is formed on one side part of a pump head composing wall 1 provided with an inflow passage 2 and an outflow passage 3, which pump part 4 has first bellows 7 driven and deformed through extension and contraction by means of an air cylinder part 14, and check valves 16a, 16b alternatively opened and closed to a pump actuation chamber 9a formed inside the bellows 7. The other side part of the pump head composing wall 1 is provided with a liquid chamber 20 capable of storing liquid discharged from the pump part 4 and second bellows 18 driven and deformed through extension and contraction, and forming an air chamber 20b separated from the liquid chamber 20a. A pulse motion reduction device 5 is thus composed for eliminating pulse motion of the liquid discharged from the pump part 4 through capacity variation of the liquid chamber 20a. An extension ratio of the second bellows 18 exceeds that of the first bellows 18.</p> |
申请公布号 |
JP2001123959(A) |
申请公布日期 |
2001.05.08 |
申请号 |
JP19990302485 |
申请日期 |
1999.10.25 |
申请人 |
NIPPON PILLAR PACKING CO LTD |
发明人 |
NISHIO KIYOSHI;IMANISHI MAKOTO;MINATO YOJI;KATSURA MASAYOSHI;KAWAMURA HITOSHI;FUJII MUTSUMI |
分类号 |
F04B43/00;F04B9/125;F04B9/133;F04B11/00;F04B39/00;F04B43/02;F04B43/06;F04B43/073;F04B43/08;(IPC1-7):F04B43/08 |
主分类号 |
F04B43/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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