Device for controlling the gas supply to an ignition gas burner

摘要

A device for controlling the ignition gas supply to an ignition gas burner has, in the ignition gas supply line (3), a throttle (6) which is arranged upstream of the ignition gas burner and whose throughput is dimensioned in accordance with the minimum requirement of the ignition gas burner. For the purpose of displacement, the air present in the ignition gas supply line (3) at the start of an ignition process is supplied, in this phase, with an increased quantity of gas so as thereby to accelerate the ignition process. According to the invention concerning a further development of such a device, a vent connection (48) for a vent line (49) is provided in the ignition gas supply line (3) before the throttle (6). This vent connection (48) can be blocked by means of a diaphragm valve (69/73) controlled by the gas pressure in the ignition gas supply line, as soon as the ignition gas flowing behind has displaced the air present in the ignition gas supply line (3). <IMAGE>