| 摘要 |
PURPOSE:To simplify and miniaturize the structure of an oil amount regulator and make a level surface constant at all times by a method wherein a second float, provided in a first float movably up-and-down and engaged with it upon abnormal level surface, is provided while the second float is fixed upwardly by an attraction mechanism upon the abnormal level surface. CONSTITUTION:A first float 19 follows the up-and-down movement of the level surface of liquid in a vessel 1 and the opening and closing as well as the regulation of the opening degree of a valve port 12 are effected by a valve body 14 whereby the level surface is controlled so as to keep a normal level surface of liquid in constant at all times. When the level surface of the liquid is increased due to the clogging of the valve port 12 by dust or the like and not only the first float 19 but also the second float 22 are elevated to an abnormal liquid level surface B, the stopper 27 of the second float 22 is engaged with the first float 19, an iron sheet 24 is attracted to a magnet 28, the second float 22 is fixed upwardly, a spring 29 is deflected and the force thereof is applied on the float 22 further. According to this operation, a large closing force is applied on the valve body 14 to close the valve port 11 whereby the further elevation of the level surface of the liquid may be prevented perfectly. |
