| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid pumping device sending the condensate generated in various kinds of steam using devices to a boiler and waste heat using places, and having high air supply capability. <P>SOLUTION: An air supply valve 20a is provided in a working fluid introduction port 11a, a second air supply valve 20b is provided in a second working fluid introduction port 11b, and an exhaust valve 21 is provided in a working fluid discharge port 13. By operating a snap mechanism 5 utilizing a coil spring 38 according to rise and fall of a float 3 arranged in a closed container 2, a power transmission shaft 28 is moved in a snap manner to switch open and close of the air supply valve 20a, the second air supply valve 20b and the exhaust valve 21 via the power transmission shaft 28. A lever 27, which swings around a valve swinging shaft 18 supported in the closed container 2 according to the snap movement of the power transmission shaft 28, is supported rotatably on the power transmission shaft 28. Open and close of the air supply valve 20a, the second air supply valve 20b and the exhaust valve 21 are switched via the lever 27 according to the snap movement of the power transmission shaft 28, and force of the snap movement of the power transmission shaft 28 is increased by the lever 27 and is transmitted to the air supply valve 20a, the second air supply valve 20b and the exhaust valve 21. <P>COPYRIGHT: (C)2013,JPO&INPIT |
