Regulator for gas burner and its nozzle

摘要

The regulator has a control circuit for the gas valve and a nozzle 3 in an air/gas mixing chamber. The nozzle has a variable flow cross-section using a ball which increases its cross-section for increasing gas flow, and vice versa. The nozzle has several channels which are opened by the sliding of the ball in one direction. They are located one behind another in the sliding direction so that with increasing gas flow, they are opened one after another. The channels run at an angle to the sliding direction. The channels are slits and holes in the nozzle. The ball is inside the nozzle and the gas flow is directed against its weight.