| 摘要 |
PROBLEM TO BE SOLVED: To provide a piston type electromagnetic vibratory pump capable of improving the pumping performance and reducing the manufacturing cost. SOLUTION: In this piston type electromagnetic vibratory pump composed of an electromagnetic part, a vibrator supported in the electromagnetic part and having a permanent magnet, pistons mounted on both end parts of the vibrator, a pump casing fixed to both side faces of the electromagnetic part, and having a cylinder part, and a cover fixed to a side face side of the pump casing, the piston has the shape of a cup, and an outer peripheral edge part of the piston is abutted on the cylinder part.
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