SaM146

The accessory drive train includes:

• inlet gearboxes (at present only design and development) and of transmission of motion which transfer torque from the engine to the HP box accessories;
• the vertical transmission shaft (at present only design and development) and the horizontal shaft that connect gearboxes of motion, transmission and accessories;
• the accessories gearbox, mounted on the static structure of containment of the fan, which operates 7 accessories of the engine and the plane.

This is the first program in which Avio takes part with the “design responsibility” combustor, this module is characterized by a technology able to guarantee high combustion efficiencies in respect of the emissions requirements, in terms of environmental impact.
The combustion chamber of SaM146 includes:

• module 8: Casing of the combustion chamber consisting of:
   
• a diffuser with 88 rooms whose purpose is to convey the air from the compressor the flame tube;
   
• pressure casing that includes:
   
• combustion chamber casing, mainly to help achieve a correct and uniform distribution of air at various entry ports of the tube flame, as well as protection for any damage of the flame tube;
• high-pressure turbine casing to meet the requisites of module containment. The pressure casing is forged in one piece (combustor casing and high-pressure turbine).
   
• module 9: combustion, which includes:
   
• a tube of flame, consisting of:
   
• Internal / external liner
• Combustion chamber dome and relative heat shield
• External conveyors (cowls) for the injection system and the primary combustion zone
• coupling flange of combustion chamber and casing
• 18 conduits (for the housing of many injectors) consists of vorticators suitable to the atomization and mixing of fuel.