| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid forcibly feeding device preventing operating vapor introduced from an operating vapor introducing port into a sealed vessel from being turned in the upstream side of an inflow-side check valve by promptly closing the inflow-side check valve when an exhaust valve is closed and an air supply valve is opened. SOLUTION: The air supply valve 20 is provided in the operating vapor introducing port 11, the exhaust valve 21 is provided in an operating vapor discharge opening 13, the inflow-side check valve 62 allowing only a liquid flow to the sealed vessel 2 is provided in a liquid inflow opening 16, and a forcibly-feeding-side check valve 63 allowing only a fluid flow to a liquid forcibly feeding destination is provided in a liquid discharge opening 17. A snap mechanism 5 is operated according to the upward movement and downward movement of a float 3 arranged in the sealed vessel 2 to snappingly move an auxiliary arm 52, thereby switching the opening/closing of the air supply valve 20 and exhaust valve 21 which are coupled to a power transmission shaft 28. When the exhaust valve 21 is closed and the air supply valve 20 is opened by snap movement of the auxiliary arm 52, the inflow-side check valve 62 is driven to be closed by the auxiliary arm 52. COPYRIGHT: (C)2010,JPO&INPIT |
