| 摘要 |
PURPOSE: An automatic pumping method by using gravity is provided to pump liquid by forming low pressure below atmospheric pressure in an enclosure filled up with liquid. CONSTITUTION: An automatic pumping method is carried out by using an enclosure(71), an opened container(72), a lower-opened container(73), pipes(74-1,74-2) and liquid(75). The enclosure(71) is filled up with liquid(75). Low pressure below atmospheric pressure in formed in the enclosure(71). The enclosure(71) is positioned at upper potions of the opened container(72) and the lower-opened container(73). The opened container(72) is fixed to a predetermined position between the enclosure(71) and the lower-opened container(72). A liquid level filled in the enclosure(71) is identical to a liquid level filled in the opened container(72). |
