| 摘要 |
PROBLEM TO BE SOLVED: To provide a diaphragm pump with a simple construction. SOLUTION: A diaphragm 32 is oppositely arranged to a recessed part 20 formed on a housing plate 18, and a pump room 12 is formed thereby. A weight 44 is fixed to the diaphragm 32. The pump room 12 is connected with a suction flow passage 14 having a check valve and a delivery flow passage 16. The housing plate 18 is installed on a vibrating vibrator such as an internal combustion engine, and a diaphragm pump 10 is vibrated. The weight 44 tries to stay in its position by inertia, and is relatively displaced to the housing plate 18, and the volume of the pump room 12 increases and decreases. Thus, a handling fluid is sucked in by the suction flow passage 14, and is delivered from the delivery flow passage 16. A construction of a driving mechanism is also simplified without requiring to supply electric power for driving the diaphragm. COPYRIGHT: (C)2007,JPO&INPIT
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