VERGASER FUER EINE VERBRENNUNGSMASCHINE

A carburetor assembly has primary and secondary venturi passages to supply a lean mixture to main combustion chambers of an engine, and has an auxiliary venturi passage to supply a rich mixture to auxiliary combustion chambers of the engine. A throttle valve in each passage is provided with a shaft, and the shaft for the primary throttle valve projects through a hollow hub on the carburetor body. Several members and springs are mounted on the hub and serve to control turning movement of all throttle shafts during various operating conditions of the engine. A link is pivotally connected at one end to an arm which turns with the primary throttle valve and is pivotally connected at the other end to an arm which turns with the auxiliary throttle valve. An angular adjustment is provided between the auxiliary throttle valve and its respective arm. The geometric relationships of the link and arms are such as to provide the desired coordinated movement between the throttle valves.