公开(公告)号：JPH11257664A

公开(公告)日：1999-09-21

申请号：JP37287198

申请日：1998-12-28

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOKE JAMES B ,  RUP JOHN J JR

IPC: F02C7/232 ,  F23C7/00 ,  F23C7/02 ,  F23D11/10 ,  F23R3/14 ,  F23R3/58

Abstract: PROBLEM TO BE SOLVED: To contribute the reduction or the control of discharging of NOx by a method wherein an axial direction inflow swirler, having an outlet port providing discharged fuel with swirl air, and a radial direction inflow flow swirler, having an outlet port supplying swirler air, are provided in the subject assembly. SOLUTION: A fuel sending system is provided with a fuel sending passage, arriving at an annular discharging part 30 for sending out fuel from a fitting to the discharging port 30. A nozzle head 18 comprises an axial direction inflow flow swirler 32 and a radial direction inflow flow swirler 34. The whirler 32 is constituted of an inlet port end part, for receiving axial direction inflow air, a vane assembly 40, for providing air with swirl, and an air passage 36, coaxial with the center line of the head 18 having an outlet port end part 42 neighbored to the fuel discharging port 30. The radial direction inflow flow swirler 34 is constituted of an outlet port end part 48, neighbored to the fuel discharging port 30, and an annular air passage 46, coaxial with a center line of the outlet port end part 48 as well as an inside end unit 50.