[특허]Simplex airblast fuel injection

[미국특허] Simplex airblast fuel injection 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-007/26 F02G-003/00
출원번호	US-0825345 (1992-01-24)
발명자 / 주소	Bretz David H. (Bloomfield Township Davis County IA) Bobzin Darrell G. (West Des Moines IA)
출원인 / 주소	Delavan Inc (West Des Moines IA 02)
인용정보	피인용 횟수 : 39 인용 특허 : 0

초록 ▼

A simplex air blast fuel injection system for the atomization of fuel for ignition to drive a gas turbine includes a simplex nozzle which receives fuel from a fuel pump powered by the turbine over a range of pressures between maximum and minimum pressures during the operation of the turbine, and also receives fuel at a substantially lower pressure than the minimum fuel pressure when the turbine is cranked during startup. The fuel is discharged from the nozzle orifice as a swirling stream of atomized fuel during turbine operation, and as a film which is insufficiently atomized to initiate ignition during the turbine startup. An air compressor is also powered by the turbine to supply air at a low pressure to the fuel issuing from the nozzle orifice during both turbine operation and startup. An air director shroud imparts a swirling motion to the low pressure air and directs the swirling air to adjacent the fuel film as it issues from the nozzle orifice during startup to produce a pressure differential between opposite sides of the film to explode and atomize the fuel film sufficiently to permit ignition during turbine startup. A stream of low pressure air is also directed to the swirling stream of atomized fuel during turbine operation and that air stream is also preferably swirling.

대표청구항 ▼

An airblast fuel injection system for the atomization of fuel for ignition to drive a gas turbine, comprising: a nozzle having an orifice, said nozzle being sized and constructed to produce a stream of atomized fuel issuing form its orifice at least at a minimum fuel pressure during the operation of the turbine; fuel supply means for supplying the fuel to said nozzle at least at said minimum fuel pressure during the turbine operation, said fuel supply means also supplying fuel to the same nozzle during startup of the turbine but at a pressure which is substantially lower than said minimum fuel pressure to form a fuel film issuing from said nozzle orifice which is insufficiently atomized to permit initiation of ignition; air supply means for supplying air at least at a minimum pressure to the fuel issuing from said nozzle orifice during turbine operation and at a pressure substantially lower than said minimum pressure during turbine startup; and air directing means for imparting a swirling motion to said substantially lower pressure air from said air supply means and directing the swirling air toward said insufficiently atomized fuel film as it issues from said orifice during startup of the turbine to explode and atomize the film sufficiently to permit initiation of ignition.

이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

Bretz, David H., Air assist fuel nozzle.
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Bretz, David H., Air assisted simplex fuel nozzle.
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Ginessin, Leonid Yulievich; Shershnyov, Borys Borysovich, Anti-coking liquid fuel injector assembly for a combustor.
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Bernero,Stefano; Geng,Weiqun; Steinbach,Christian; Stuber,Peter, Apparatus for injecting a fuel-air mixture into a combustion chamber.
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Johnson,Thomas Edward; Widener,Stanley Kevin; McMahan,Kevin Weston, Burner tube and method for mixing air and gas in a gas turbine engine.
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Sprouse, Kenneth M.; Matthews, David R.; Jensen, Robert J., Fluid injection and injection method.
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Sprouse, Kenneth M.; Matthews, David R.; Jensen, Robert J., Fluid injector and injection method.
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Sprouse, Kenneth M.; Matthews, David R.; Jensen, Robert J., Fluid mixing injector and method.
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Sampath,Parthasarathy; Zheng,Qing Ping, Fuel injector head.
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Bailey, Donald Mark; Simmons, Scott R; Boardman, Gregory Allen; Irizarry-Rosado, Xiomara, Fuel nozzle liquid cartridge including a fuel insert.
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Myers, Steven Jay, Fuel nozzle with discrete jet inner air swirler.
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Chin, Jushan; Rizk, Nader K.; Razdan, Mohan K.; Marshall, Andre W., Fuel premixing module for gas turbine engine combustor.
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Oskam, Gareth W., Gas turbine and fuel injector for the same.
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Mansour, Adel B.; Harvey, Rex J.; Laing, Peter, Integrated fluid injection air mixing system.
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Mansour,Adel B.; Harvey,Rex J.; Laing,Peter, Integrated fluid injection air mixing system.
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Mansour, Adel B.; Harvey, Rex J.; Tacina, Robert R.; Laing, Peter, Integrated fuel injection and mixing system with impingement cooling face.
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Williams, Brandon P.; Rhyan, Jeremy T., Lean burn injectors having a main fuel circuit and one of multiple pilot fuel circuits with prefiliming air-blast atomizers.
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Williams, Brandon P.; Rhyan, Jeremy T., Lean burn injectors having multiple pilot circuits.
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Oskam, Gareth W., Lean direct fuel injector.
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Buelow, Philip E. O.; Williams, Brandon P.; Bretz, David H.; Spooner, Michael; Mohamed, Caroline; Gill, Helen, Lean direct injection atomizer for gas turbine engines.
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Buelow, Philip E. O.; Williams, Brandon P.; Bretz, David H.; Spooner, Michael; Mohamed, Caroline; Gill, Helen, Lean direct injection atomizer for gas turbine engines.
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Modi, Roberto; Bonciani, Luciano; Ceccherini, Gianni, Liquid fuel injector for burners of gas turbines.
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Shekleton Jack R. ; Martin Curtis C., Liquid fuel injector purge system.
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Bosley Robert W. ; Edelman Edward C. ; Lampe Steven W. ; Miller Ronald F., Liquid fuel pressurization and control method.
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Prociw,Lev Alexander; Brand,Joseph Horace, Low cost pressure atomizer.
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Sprouse, Kenneth M.; Hartung, James A., Low-emission, staged-combustion power generation.
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Oskam, Gareth W., Method of operating a gas turbine engine.
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Mancini, Alfred Albert; Mongia, Hukam Chand, Mixer assembly for gas turbine engine combustor.
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Mao, Chien-Pei; Short, John Earl; Thomson, Neal A., Multiplex injector.
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Mancini, Alfred Albert; Mongia, Hukam Chand, Pilot fuel injector for mixer assembly of a high pressure gas turbine engine.
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Crocker David S. ; Nickolaus Daniel A. ; Smith Clifford E., Piloted airblast lean direct fuel injector.
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Smith,Clifford E.; Nickolaus,Daniel A., Piloted airblast lean direct fuel injector with modified air splitter.
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Carl Daniel E. (Orchard Park NY), Process for off-gas particulate removal and apparatus therefor.
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Thomson, Neal A.; Buelow, Philip E. O.; Bretz, David H., Radially outward flowing air-blast fuel injection for gas turbine engine.
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Thomson, Neal A.; Buelow, Philip E. O.; Bretz, David H., Radially outward flowing air-blast fuel injector for gas turbine engine.
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Crocker, David S.; Black, David L., Single-circuit fuel injector for gas turbine combustors.
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Schneider, Matthias, Solid cone nozzle.
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Williams, Brandon Phillip; Cholvibul, Viraphand; Bretz, David H., Staged pilots in pure airblast injectors for gas turbine engines.
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Roesler, Timothy C., Supercritical or mixed phase multi-port fuel injector.
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[미국특허] Simplex airblast fuel injection 원문보기