[특허]Fuel injector for a turbojet engine afterburner

Fuel injector for a turbojet engine afterburner 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-003/04
출원번호	US-0032484 (1993-03-17)
우선권정보	FR-0003936 (1992-04-01)
발명자 / 주소	Roche Jacques A. M. (Lisses FRX)
출원인 / 주소	Societe Nationale d\Etude et de Construction de Moteurs d\Aviation (S.N.E.C.M.A.) (Valin FRX 07)
인용정보	피인용 횟수 : 40 인용 특허 : 0

초록 ▼

A fuel injector for a turbojet engine afterburner is disclosed having a fuel tube extending radially inwardly into an afterburner combustion chamber from the engine casing, the fuel injector tube defining a plurality of downstream facing fuel discharge orifices along a portion of its length in order to discharge fuel into the afterburner combustion chamber. A cooling device is associated with the fuel tube in order to direct cooling air from a bypass passage of the engine onto the fuel tube in order to cool the fuel tube, not only when the afterburner is in operation, but also when the afterburner is not in operation. The cooling device is an elongated tubular enclosure which substantially encloses the fuel tube, the elongated tubular enclosure having a significantly larger cross-sectional area than that of the fuel tube so as to define a cooling cavity between them. The elongated tubular enclosure, which is also attached to the turbojet engine casing, passes through the bypass passage and defines inlet openings to enable a portion of the air in the bypass passage to pass through the opening and into the cooling cavity so as to cool the fuel tube. A downstream portion of the elongated tubular enclosure defines a slit which is in alignment with the plurality of fuel discharge orifices of the fuel tube so as to enable the fuel to be injected into the afterburner combustion chamber.

대표청구항 ▼

A fuel injector for an afterburner of a turbojet engine having a case defining an afterburner combustion chamber through which gases pass in an upstream to downstream direction, comprising: a) a fuel tube extending into the afterburner combustion chamber, the fuel tube defining a plurality of fuel discharge orifices along a portion of its length, the plurality of fuel discharge orifices facing generally in a downstream direction; b) an elongated tubular enclosure substantially enclosing the fuel tube, the elongated tubular enclosure having a larger cross-sectional area than that of the fuel tube so as to define a cooling cavity therebetween, and defining a slit aligned with the plurality of fuel discharge orifices such that fuel from the discharge orifices passes into the afterburner combustion chamber through the slit and further defining a plurality of air discharging orifices; c) attachment means to attach proximal ends of the fuel tube and the elongated tubular enclosure to the case, wherein the attachment means comprises: i) a fastening collar on the elongated tubular enclosure; ii) a base attached to the fuel tube; and iii) means to removably attach the fastening collar and the base to the case; d) an end wall extending across a distal end of the elongated tubular enclosure, the end wall defining an opening therethrough, the length of the fuel tube being greater than that of the tubular enclosure such that a distal end of the fuel tube extends through the opening so as to permit relative movement between the fuel tube and the elongated tubular enclosure caused by thermal expansion and contraction; and, e) means to supply cooling air to the cooling cavity.

이 특허를 인용한 특허 (40)

Hicks, Paul G.; Lee, Fei Philip, Active thermal protection for fuel injectors.
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John Herman Mueller ; Mark Leonard Vossman ; William Ralph Maskiell, Afterburner heat shield.
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Allen,John G, Afterburner igniter.
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Woltmann, Ivan Elmer; Senter, Thurmond Douglas; Timko, Lawrence Paul, Augmentor radial fuel spray bar with counterswirling heat shield.
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Sadil, Andreas; Burd, Steven W.; Jlidi, Bessem; Moura, Dennis M.; Brdar, Christopher R.; Ma, Leong; Grant, Fernando K.; Herrmann, Jodie L.; Vanston, Kelly A.; Westergard, Matthew J.; Titterton, III, George F., Augmentor spray bar with tip support bushing.
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Lovett, Jeffery A.; Bellows, Benjamin D., Cavity swirl fuel injector for an augmentor section of a gas turbine engine.
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Shershnyov, Borys Borysovych; Myers, Geoffrey David; Ginesin, Leonid Yulyevich, Combustor and method of supplying fuel to the combustor.
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Shershnyov, Borys Borysovych; Myers, Geoffrey David; Ginesin, Leonid Yulyevich, Combustor and method of supplying fuel to the combustor.
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Caples, Mark, Compensating for thermal expansion via controlled tube buckling.
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Caples, Mark, Compensating for thermal expansion via controlled tube buckling.
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Winkler, Anton; Benz, Urs; Theuer, Andre; Lauffer, Diane; Poyyapakkam, Madhavan, Cooling scheme for an increased gas turbine efficiency.
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Wiebe, David J., Fuel injector for use in a gas turbine engine.
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Snyder, Timothy S.; Burd, Steven W.; McKinney, Randal G.; Titterton, George F.; Wong, Joey, Gas turbine engine systems and methods involving enhanced fuel dispersion.
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Snyder, Timothy S.; Burd, Steven W.; McKinney, Randal G.; Titterton, III, George F., Gas turbine engine systems and methods involving enhanced fuel dispersion.
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Eroglu, Adnan; Meeuwissen, Thiemo; Flohr, Peter, Gas turbine reheat combustor including a fuel injector for delivering fuel into a gas mixture together with cooling air previously used for convectively cooling the reheat combustor.
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Maurer, Michael Thomas; Benz, Urs; Baumgartner, Felix, Impingement cooled wall arrangement.
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Koshoffer,John Michael, Method and apparatus for gas turbine engines.
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Andersson,Stefan; Bäckander,Patrik; Falk,Hans; Lindblad,Klas; Schmidt,Hakan, Method and apparatus for providing an afterburner fuel-feed arrangement.
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Rice Edward Claude ; Ress Robert Anthony ; Williams Reginald Guy, Method and apparatus for spraying fuel within a gas turbine engine.
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Rice, Edward Claude; Ress, Jr., Robert Anthony; Williams, Reginald Guy, Method and apparatus for spraying fuel within a gas turbine engine.
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Johnson, Arthur Wesley; Wade, Robert Andrew; Burrus, David Louis, Methods and apparatus for decreasing combustor emissions.
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Johnson, Arthur Wesley; Wade, Robert Andrew; Burrus, David Louis, Methods and apparatus for decreasing combustor emissions with spray bar assembly.
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Poyyapakkam, Madhavan; Winkler, Anton; Syed, Khawar; Ciani, Andrea, Premixed burner for a gas turbine combustor.
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Beebe Kenneth W., Premixing dry low NOx emissions combustor with lean direct injection of gas fuel.
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Beebe Kenneth W., Premixing dry low nox emissions combustor with lean direct injection of gas fule.
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Poyyapakkam, Madhavan; Winkler, Anton; Syed, Khawar; Eroglu, Adnan; Ciani, Andrea, Reheat burner injection system.
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Syed, Khawar; Poyyapakkam, Madhavan; Winkler, Anton; Theuer, Andre, Reheat burner injection system.
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Poyyapakkam, Madhavan; Benz, Urs; Theuer, Andre; Winkler, Anton; Ciani, Andrea, Reheat burner injection system with fuel lances.
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Larry Lee Vacek ; William Ralph Maskiell, Replaceable afterburner heat shield.
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Dunbar, Jr.,Donal S., Retractable afterburner for jet engine.
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Harris, Meggan, Structural track support of spraybars/tubing.
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Mehring, Carsten Ralf; Peffley, James, Symmetric fuel injection for turbine combustor.
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Stoia, Lucas John; Melton, Patrick Benedict, System and method for supplying a working fluid to a combustor.
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Stoia, Lucas John; Romig, Bryan Wesley; Johnson, Thomas Edward; Stevenson, Christian Xavier, System and method for supplying a working fluid to a combustor.
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Stoia, Lucas John; Melton, Patrick Benedict, System and method for supplying a working fluid to a combustor via a non-uniform distribution manifold.
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Chen, Wei; Melton, Patrick Benedict; DeForest, Russell; Stoia, Lucas John; DiCintio, Richard Martin, System for supplying a fuel and a working fluid through a liner to a combustion chamber.
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Chen, Wei; Stoia, Lucas John; DiCintio, Richard Martin, System for supplying a fuel and working fluid mixture to a combustor.
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Melton, Patrick Benedict; Intile, John Charles; Stoia, Lucas John, System for supplying a working fluid to a combustor.
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Romig, Bryan Wesley; Stoia, Lucas John, System for supplying fuel to late-lean fuel injectors of a combustor.
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Roche, Jacques Andre Michel; Page, Alain Pierre; Touchaud, Stephane Henri Guy; Pommier, Nicolas, Turbo-jet engine with a protective screen of the fuel manifold of a burner ring, the burner ring and the protective screen.
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파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

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Fuel injector for a turbojet engine afterburner 원문보기

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Fuel injector for a turbojet engine afterburner 원문보기

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