Cyclone combustor

A combustor for a gas turbine engine comprising:

• a substantially cylindrical combustor can having a central axis, including a upstream end wall and a continuous side wall around the central axis thereof for receiving fuel and air to produce combustion products for the engine;
• a plurality of fuel and air premixing tubes in fluid communication with the combustor can, the premixing tubes being attached to the side wall of the combustor can, adjacent to the upstream end wall and being circumferentially space apart from one another;
• and
• each of the premixing tubes including a major tube section for producing a fuel/air mixture therein and an outlet section for injecting the fuel/air mixture into the combustor can for combustion, the major tube section having a central axis thereof substantially parallel to the central axis of the combustor can, and the outlet section having a central axis thereof extending substantially perpendicularly to the central axis of the major tube section and being oriented toward the combustor can radially with a tangential offset.