Patent ID: 9068749
Filing Date: 2015-06-30
Classification: F23D,F23R

Abstract:
1. A swirler for a gas turbine engine fuel injector comprising: a swirler body extending from an upstream end to a downstream end, a fuel injector extending into the body, and having a downstream end for injecting fuel in a downstream direction; a first flow path for directing air in a first circumferential direction about a central axis of the swirler body; a second flow path directing air to intermix with the air in the first flow path, and then to mix with fuel injected by the fuel injector, said first and second flow paths being positioned to inject air upstream of the downstream end of the fuel injector where fuel is injected; and said first flow path is provided in a greater volume than the volume provided in the second flow path, said second flow path directing air at a location downstream of said first flow path.