Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Koch
Internal combustion engine with fuel injectors
 Main and auxiliary fuel injectors are installed at an intake passageway connectable to the cylinders of the engine. Only the main fuel injector is operated to inject fuel therefrom during a relatively low load engine operation, and both the main and auxiliary fuel injectors are operated to inject fuel therefrom during a relatively high load engine operation. 
Nissan Motor Company, Limited
F F F F
F02D F02D F02M F02M
inventional inventional inventional inventional
Yoshihisa Masaaki
Kawamura Saito