| 摘要 |
<p>Means for supplying liquid or gaseous fuel to a (I) burner includes a flow regulating device (10) having three coaxial diaphragms (13a, 14a, 15a), between each adjacent pair of which there is defined a chamber, these chambers (28, 29) being connected with respective sensing stations (45, 47) in an air flow path to the burner. Outer faces of the outer diaphragms are subjected respectively to pressures derived from sensing stations in the fuel flow path and the diaphragms are connected with one another and with a valve (19) for controlling the rate of flow of fuel.</p> |
