Device for introduction of fuel mixture into two-stroke engine combustion chamber comprises valve and element connected to valve delimiting upper and lower chambers, pressurized air supply and fluidic communication between chambers

摘要

The device for introducing pressurized fuel mixture into combustion chamber comprises a valve (38) for sealing a carbureted mixture pipe (40). An assistance part connected to the valve comprises a movable separation element (50) delimiting upper (54) and lower (56) chambers. There is a pressurized air supply channel (62) to one of the chambers and fluidic communication means (64) between the chambers. Thee communication means comprise a passage section reduction (70,72) for braking the pressurized air leaving one of the chambers.