| 123 / | HD | INTERNAL-COMBUSTION ENGINES | 
| 429 |  | COMBUSTION CHAMBER MEANS COMBINED WITH AIR-FUEL MIXTURE FORMING MEANS {3} | 
| 430 | DF | .~> Stratification in combustion chamber | 
| 431 | DF | .~> Having a single combustible mixture inlet combined with means for injecting additional fuel into the combustion chamber | 
| 432 | DF | .~> Air or combustible mixture entering the combustion chamber through plural inlets {1} |