the later stage valves having damping means

Full Title

Multi-stage carburettors, Register-type carburettors, i.e. with slidable or rotatable throttling valves in which a plurality of fuel nozzles, other than only an idling nozzle and a main one, are sequentially exposed to air stream by throttling valve > with throttling valve, e.g. of flap or butterfly type, in a later stage opening automatically > the later stage valves having damping means