Title:
CLOSING METHOD FOR LIQUID FLOW PASSAGE AND APPARATUS THEREOF
Document Type and Number:
Japanese Patent JPS55135278
Kind Code:
A
Abstract:
PURPOSE:To improve liquid separation of the poured-out liquid by closing a liquid flow passage with a valve and forming negative pressure in the liquid flow passage close to the pouring-out port side from the valve by means of suction mechanism. CONSTITUTION:If a pump 13 is driven and air is fed from a flow-passage 12, the liquid level is raised, and at the same time a portion of the air flows into the hollow part 8 from a branched passage 14, and a diaphragm 7 is pushed down against a spring 10. Accordingly, a valve rod 6 and a valve 5 connected with the siaphragm 7 are lowered, and the opening end 41 of the liquid flow passage 4 is opened, then the liquid having been pressed flows-out from the liquid flow passage 4. On the other hand, if the pump 13 is stopped, the diaphragm 7 is raised by the spring 10, so the liquid flow passage 4 is closed by the valve 5. However, the diaphragm 7 goes up further, so negative pressure is generated in the lower hollow chamber 81, and due to this negative pressure, the liquid left in the liquid flow passage 4 is sucked in, and liquid separation is improved.
Inventors:
MIYAJIMA HIDENOBU
Application Number:
JP4288279A
Publication Date:
October 21, 1980
Filing Date:
April 09, 1979
Export Citation:
Assignee:
ASAHI MALLEABLE IRON CO LTD
International Classes:
F16K23/00; (IPC1-7): F16K23/00
Domestic Patent References:
| JP40004904A | ||||
| JPS52153230A | 1977-12-20 | |||
| JPS5115064A | 1976-02-06 | |||
| JPS5254822U | 1977-04-20 |