| 摘要 |
<p>In a pressure regulator (1) for supplying a gas burner, a main valve located in the path of the gas is servo-assisted by a pilot valve (2, 3, 4) in which the position of the shutter (3) relative to the corresponding valve seat (2) is adjusted by means of a hot-wire operator (29-30) supplied with an electrical current dependent on the temperature of the element to be controlled. Wire (29-30) operates via an adjustable extendible rod (15) on a lever 8. <IMAGE></p> |
