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公开(公告)号：US20200248633A1
公开(公告)日：2020-08-06
申请号：US16740724
申请日：2020-01-13
Applicant: ROLLS-ROYCE plc
Inventor： Stephen G. DENNISON
IPC: F02C9/00
Abstract: A combustor for a gas turbine engine comprising: a combustion chamber; at least one fuel spray nozzle operable to deliver a fuel-air mixture into the combustion chamber, wherein during operation of the gas turbine engine the fuel-air mixture is combusted in the combustion chamber, thereby producing a combustion flame; a microwave generator coupled to a waveguide arranged to guide microwaves from the microwave generator into the combustion chamber such that the microwaves are incident on at least a portion of the combustion flame; and a detector operable to detect at least a portion of the microwaves reflected by the combustion flame and/or atomised fuel droplets.
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公开(公告)号：US20190242302A1
公开(公告)日：2019-08-08
申请号：US16244188
申请日：2019-01-10
Applicant: ROLLS-ROYCE plc
Inventor： Stephen G. DENNISON
CPC classification number: F02C7/232 , F02C7/228 , F02C7/264 , F02C9/26 , F02C9/34 , F05D2270/62 , F16K31/0634 , F23R3/343
Abstract: A fuel flow valve, for example for use in supplying fuel to a gas turbine engine. Example embodiments disclosed include a staging fuel valve (300), comprising: a valve housing (301) having first and second fuel inlets (306, 307) and first and second fuel outlets (305, 308); a piston (302) slidably mounted within a chamber (303) in the valve housing (301) and being moveable between a first position in which the first inlet (306) is in fluid communication with the first outlet (305) while the second inlet (307) and second outlet (308) are blocked, and a second position in which the second inlet (307) is in fluid communication with the second outlet (308). The piston (302) comprises a magnet assembly (312) and the valve housing (301) comprises a coil (313) arranged to provide, when energised, a magnetic force to actuate the piston (302) between the first and second positions.
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