Future Trends in Commercial Aviation Engines’ Combustion - Novel Combustion Concepts for Sustainable Energy Development - page 154

Table 6 Second Generation SV-LDI congurations. For each stage, the table gives the type of fuel injector and the air swirler angle(s); reproduced from
Tacina et al. ( 2014 )
Con guration Pilot injector Pilot swirler Main 1

Injector

Main 1
swirler

Main 2
injector

Main 2 Swirler Main 3 Injector Main 3 Swirler

Flat dome Simplex 55 ° C CW Simplex 45 ° CCW Airblast IAS: 45 ° CW Airblast IAS: 45 ° CW

OAS: 45 ° CW OAS: 45 ° CW

5-point recess Airblast IAS: 57 ° CW

OAS: 57 ◦ CCW

Simplex 45 ° CW Airblast IAS: 45 ° CW

OAS: 45 ° CCW

Airblast IAS: 45 ° CW

OAS: 45 ° CCW

OAS outer air swirler, IAS inner air swirler, CW clockwise, CCW counterclockwise