公开(公告)号：US11181272B2

公开(公告)日：2021-11-23

申请号：US16119496

申请日：2018-08-31

Applicant: ROLLS-ROYCE plc

Inventor： Luca Tentorio ,  Carl L Muldal ,  Hua Wei Huang ,  Evangelos Bacharoudis ,  Juan Carlos Roman Casado

IPC: F23R3/30 ,  F23R3/14 ,  F23D11/10 ,  F23D11/38 ,  F23R3/28

Abstract: A fuel spray nozzle, for atomising liquid fuel in gas, including: an gas passage; a liquid fuel passage; a swirler provided in the gas passage and including vanes such that, when gas passes through the gas passage, the swirler produces a jet flow of gas from between adjacent vanes and a turbulent flow of gas in the wake of each vane; a prefilming surface for receiving liquid fuel from the liquid fuel passage, and gas from the gas passage, wherein the prefilming surface includes areas that receive jet flow of gas from the gas passage, in use; wherein the fuel spray nozzle is configured to direct the liquid fuel passing through the liquid fuel passage to the areas on the prefilming surface that receive a jet flow of gas from the gas passage.