Device for the injection of mixture of fuel and air, turbomachine and combustor with such a device

摘要

The device has a bowl (30) axially spaced from a radial gimlet (42), and a support ring (50) arranged around the bowl. The bowl has a cylindrical wall (32) extended by a widened wall (31), where the wall is provided with an air insertion hole (34). The ring has an upstream cylindrical part (51) with an outer diameter (D3) and a downstream cylindrical part (52) with an external diameter (D4). The cylindrical part (52) is axially spaced from the part (51), where the part (51) is connected to the wall by engine support lugs (55).