Patent ID: 8806871

Claim:
A fuel nozzle apparatus comprising: a fuel distributor comprising: a fuel conduit; an annular distributor ring including: an array of fuel outlets, a main fuel passage communicating with the fuel conduit and the fuel outlets, and an aft interior mounting surface; and a pilot supply tube extending axially from an inner end of the fuel conduit, and including a pilot fuel passage; a venturi, comprising: an annular splitter including a cylindrical forward portion with a first bore; an annular venturi wall surrounding the splitter, the venturi including a cylindrical forward portion defining spaced-apart forward and aft exterior mounting surfaces, the forward exterior mounting surface is located at a forward-most edge of the cylindrical forward portion and a row of first vanes extending between the splitter and the venturi wall, wherein the row of first vanes is axially located at the forward-most edge of the annular venturi wall and the cylindrical forward portion of the annular splitter, and connects the annular splitter to the annular venturi; wherein the venturi is of a unitary construction; a swirler comprising: a hub with upstream and downstream ends, a second bore at the upstream end, and a pilot fuel outlet at the downstream end; a row of second vanes extending outward from the hub; an annular rim surrounding the upstream end of the hub, defining an air flow passage between the rim and the hub, and a forward interior mounting surface located on a radially inner side of the annular rim; and a radially-extending wall interconnecting the hub and the rim; wherein the swirler is of a unitary construction; wherein: the pilot supply tube is received in the second bore; outer ends of the inner vanes are received in the first bore of the splitter; and the forward and aft exterior mounting surfaces of the venturi are received in the forward and aft interior mounting surfaces, respectively.