| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid pump with built-in vibrators to be operated with high vibration, for securing a more discharge amount in a smaller space by operating magnetic force generated with a high frequency on the vibrators formed of magnetic materials. SOLUTION: The two vibrators formed of magnetic materials with the same polarity facing each other are gently inserted and sealed into a pipe body formed of a nonmagnetic material with a discharge port and a suction port. Thus, the stroke length of each vibrator is cut nearly in half, as compared with the case of one vibrator. Two air core electromagnetic coils provided on the outer periphery of the pipe body are energized by a high-frequency alternating current or a pulse current to give mutually opposite reciprocating motion to the two vibrators. COPYRIGHT: (C)2006,JPO&NCIPI
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