| 摘要 |
PURPOSE:To obtain a gas flow rate corresponding to a switching position and to easily switch different kinds of gases, by constituting so that a gas governor and a variable throttle can be switched. CONSTITUTION:A casing of a gas governor is provided with a valve body 14 secured to the center of a diaphragm 13 and a pressure regulating spring 15 for exerting a force toward a direction in which the valve body 14 is opened, and a gas governor 18 consists of a pressure regulating rod 17 making contact with a spring supporter 16 of the pressure regulating spring 15 and being vertically slidable. Further, an inlet 21 of a variable throttle 20 is securly connected to an outlet 19 of the gas governor 18, and a plurality of throttle holes 23, each corresponding to a gas kind are formed in a rotating body 22. A flange cam 25 is secured to a rotating body shaft 24 integrally joined to the rotating body 22, and the flange cam 25 makes contact with the pressure regulating rod 17. |
