Abrégé

The invention relates to a fuel/air injection system for internal combustion engines, turbine engines and other atomisation systems, comprising an injector (4) as well as an injection nozzle having a nozzle body (1), at least one nozzle hole (9), a nozzle needle (2) which is movable in a manner controlled by the injector (4), at least one fuel channel (5) and at least one air channel (10), wherein the nozzle needle (2) has, at its tip, a sealing surface (7) which sealingly interacts with a sealing seat of the injection nozzle (1) when the nozzle needle (2) is in the closed position, wherein a blind hole (8) for premixing fuel and pressurised air which flow to this blind hole (8) from the at least one fuel channel (5) and the at least one air channel (10) is located in the nozzle body (1) between the tip of the nozzle needle (2) and the at least one nozzle hole (9).

Classes IPC  ?

• F02M 67/02 - Appareils dans lesquels l'injection est réalisée par un gaz à haute pression, le gaz entraînant le combustible dans les cylindres moteurs, p. ex. du type à injection d'air le gaz étant de l'air comprimé, p. ex. comprimé dans des pompes
• F02M 61/12 - Autres injecteurs avec corps des clapets allongés, p. ex. du type soupapes à aiguille caractérisés par l'existence de moyens de guidage ou de centrage pour les corps de clapets