Patent ID: 8348180
Filing Date: 2013-01-08
Classification: B23H,F05D,F23D,F23R,Y10T

Abstract:
1. A fuel injector comprising: a) a heat shield defining a longitudinal axis and having a conical outer surface; b) an air cap located outboard of the heat shield and having a conical inner surface, wherein an axially converging airflow channel is defined between the conical outer surface of the heat shield and the conical inner surface of the air cap; and c) a conical air swirler disposed within the axially converging airflow channel and having an upstream inlet surface and a downstream outlet surface, wherein the upstream inlet surface of the conical air swirler defines a two-dimensional plane, the conical air swirler having a plurality of axially extending circumferentially spaced apart turning slots located between the upstream inlet surface and the downstream outlet surface, wherein the spaced apart turning slots are bounded in part by the conical outer surface of the heat shield and the conical inner surface of the air cap, and wherein the spaced apart turning slots are further bounded by turning vane walls that are oriented normal to the two-dimensional plane of the upstream inlet surface of conical swirler.