AIR FUEL RATIO CONTROL DEVICE FOR GAS BURNER

摘要

The apparatus controls air-fuel ratio of a gas burner according to variation of aload. The apparatus compries a semi-circular cam (2) axially mounted to a motor (1), a taps (8)(8') formed in the periphery of the cam (2), an air controlling screw (9) and a gas controlling screw (9') inserted on the taps (8)(8'), an air controlling link (11) and a gas controlling link (11') each with one end in contact with weightd (13)(13') with axles (12)(12'), other ends of the links (10)(10') connecting to the control bars (14)(14') of the air controlling damper and gas controlling damper.