Carburetor for internal-combustion engines

Carburetor for internal-combustion engines, with a suction pipe with Venturi tube, in which the main injection system terminates, as well as with a randomly actuable throttle valve and a bypass line bypassing this throttle valve as well as with a no-load system which is supplied with emulsified fuel by an emulsifying system and which has bores terminating in the suction pipe in the region of the randomly actuable throttle valve, characterized in that the bypass line (16) has a constant non-adjustable narrow point (15) into which a channel (14) carrying emulsified fuel emerges and in that a bore (13) enters the suction pipe (1) from the no-load channel (11) at a point lying downstream of the closed, randomly actuable throttle valve, and further characterized by an adjusting screw (20) by which the cross section of the bypass line (16) is determined downstream of the narrow point (15) before it enters the suction pipe (1), whereby the cross sections of nozzles and bores determining the supply of emulsified fuel through this bore (13) are adjusted so that the fuel supply is effected super-critically, while the cross sections determining the supply of emulsified fuel through the connecting channel (14) to the narrow point (15) of the bypass line are adapted so that the fuel supply into the bypass line is effected sub-critically.