Air-fuel mixture supply device of internal combustion engine
 The fuel passing through the main discharge nozzle of a carburetor is positively vibrated or be caused to pulsate to supply well atomized fuel into the air-fuel mixture induction passage of the carburetor in order to improve the combustion condition within the combustion chambers of an internal combustion engine. 
Nissan Motor Company, Ltd.
F Y F
F02D Y10S F02M
inventional additional inventional
Masaaki
Saito