发明名称 |
ELECTROMAGNETICALLY-DRIVEN AIR PUMP |
摘要 |
PURPOSE: To improve drive efficiency and reduce weight and to prevent deterioration of a diaphragm during rest. CONSTITUTION: An electromagnetically-driven air pump comprises a cylindrical magnetic frame 6 around which two exciting coils 7 and 8 are wound so that one pole is formed at two ends and the other pole at a central part; a variation piece 9 wherein a magnetic pole is formed at two ends and a central part is contained in a frame reciprocatively with the flange part 6a of the magnetic frame 6 forming a center; and a pump chamber 1 having a diaphragm 3 connected to one end of the slide piece 9. A magnetic force is exerted on the vibration piece 9 from the two ends of the magnetic frame 6 and the central part thereof. |
申请公布号 |
JPH08135577(A) |
申请公布日期 |
1996.05.28 |
申请号 |
JP19940301427 |
申请日期 |
1994.11.10 |
申请人 |
RIKEN KEIKI CO LTD |
发明人 |
MIYAUCHI MASATOSHI;NAKAMURA YUKIO |
分类号 |
F04B43/04;F04B45/047;(IPC1-7):F04B45/047 |
主分类号 |
F04B43/04 |
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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