公开(公告)号：US20170211486A1

公开(公告)日：2017-07-27

申请号：US15403025

申请日：2017-01-10

Applicant: ROLLS-ROYCE plc

Inventor： Arthur L. ROWE ,  Alexander MACDONALD

IPC: F02C9/28

CPC classification number: F02C9/28 ,  F02C9/46 ,  F05B2270/3013 ,  F05D2270/101 ,  F05D2270/301

Abstract: A method (30) of controlling fuel flow in a gas turbine engine. First, detect a surge condition. Set fuel flow demand (Wf_D) proportional to compressor discharge pressure (P30). Detect actual fuel flow (Wf_A). Then apply an enhanced schedule (50) for fuel flow demand (Wf_D) while fuel flow demand (Wf_D) is less than a predefined proportion (k) of actual fuel flow (Wf_A). Also a gas turbine engine (10), fuel flow system (68) and fuel flow control system (76) each implementing the method (30).