[특허]Low emission combustion chamber

[미국특허] Low emission combustion chamber 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-007/22 F02M-023/00
출원번호	US-0533922 (1974-12-18)
발명자 / 주소	Markowski Stanley J. (East Hartford CT) Nolan James J. (Glastonbury CT)
출원인 / 주소	United Technologies Corporation (Hartford CT 02)
인용정보	피인용 횟수 : 27 인용 특허 : 0

초록 ▼

A low emission combustion chamber in which vitiated products of combustion from a pilot burner are caused to swirl about the combustion chamber axis before fuel droplets are introduced into the vitiated, swirling combustion products for flash vaporization therein to produce a vaporized, swirling, vitiated fuel-air mixture so as to effect ignition lag until swirling combustion air can be mixed with the swirling mixture to molecularly premix the fuel and air and increase its oxygen content to reduce the ignition lag to effect autoignition at an equivalence ratio less than 1 so as to effect high-rate, lean burning in the primary combustion chamber.

대표청구항 ▼

A low NOx combustion chamber having an axis and comprising: A. means to produce pilot combustion swirling about said axis and similarly swirling hot, fully combusted, pilot exhaust gases of reduced oxygen content and of a temperature above the vaporization temperature of the fuel to be utilized in the combustion chamber, B. means to inject atomized fuel into the swirling pilot products of combustion in selected quantity to produce a first swirling mixture of fuel and air of reduced oxygen content so that the firsT swirling mixture has a first ignition delay time to prevent autoignition of the atomized fuel droplets, said first swirling mixture also having a selected temperature to vaporize the fuel so that said first swirling mixture is a vaporized, swirling fuel-air mixture having a reduced oxygen content to produce autoignition at the culmination of the first time delay, and C. means to mix a selected quantity of swirling combustion air with the first swirling mixture to effect molecular mixing between the fuel and air since both the first mixture and combustion air are swirling, and in selected quantity to produce a second swirling, vaporized fuel-air mixture of oxygen level greater than that of said first mixture to effect a new and reduced ignition delay time so as to autoignite the second mixture at an ER less than one and at a time sooner than the expiration of the first ignition delay time to thereby reduce the dwell time of the engine air at NOx creating temperature, D. wherein said combustion chamber has a pilot combustion chamber axially upstream of a main combustion chamber and wherein the first and second mixtures swirl concentrically about the axis, E. wherein said pilot combustion chamber includes: 1. a forward wall, and 2. means operatively associated with the forward wall to cause pilot combustion and pilot products of combustion to swirl about the axis, and F. wherein said swirl causing means in said pilot combustion chamber are a plurality of circumferentially disposed and spaced, and axially extending fuel nozzles extending through the forward wall, a swirl vane ring enveloping each fuel nozzle and supporting the fuel nozzle axially within the wall, a plurality of combustion air passages extending through the forward wall between adjacent vane rings and directed at an angle with respect to the combustion chamber axis so that the pilot combustion will occur and pilot products of combustion will flow in swirling fashion about the combustion chamber axis.

이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

Zaremba Henry V. (Tempe AZ) Lucas Lonnie J. (Chandler AZ) Catmull Paul B. (Gilbert AZ) McAdams Maynard L. (Chandler AZ) Johnson Karl P. (Tempe AZ), Apparatus for use in a fuel delivery system for a gas turbine engine.
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Brehm Norbert,DEX, Axially staged annular combustion chamber of a gas turbine.
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Jansohn Peter,DEX ; Koster Dieter,CHX ; Ruck Thomas,CHX, Burner for operating a heat generator.
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Dusing, Michael; Poyyapakkam, Madhavan Narasimhan; Wysocki, Stefan, Burner of a gas turbine with a lobed shape vortex generator.
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Coffinberry George A., Coated article for hot hydrocarbon fluid and method of preventing fuel thermal degradation deposits.
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Coffinberry George A. ; Ackerman John F., Coated articles and method for the prevention of fuel thermal degradation deposits.
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Jacobus Van Liere NL; Cornelis Adrianus Antonius Van Paassen NL, Device for compressing a gaseous medium and systems comprising such device.
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Jorgensen Robert A. (Clifton Park NY) Farrell Roger A. (Schenectady NY) Gerhold Bruce W. (Rexford NY), Dual stage-dual mode low emission gas turbine combustion system.
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Wilkes Colin (Scotia NY) Hilt Milton B. (Sloansville NY), Dual stage-dual mode low nox combustor.
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Markowski Stanley J. (East Hartford CT) Lohmann Robert P. (South Windsor CT), Fuel nozzle for burner construction.
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Eskin, Leo D.; Roby, Richard J.; Klassen, Michael S.; Ramotowski, Michael J., Integrated system and method for production and vaporization of liquid hydrocarbon fuels for combustion.
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Berry, Jonathan Dwight; Kramer, Gilbert Otto, Lobe nozzles for fuel and air injection.
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Taylor Jack R. (Cincinnati OH), Low NOx combustor.
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Drago Thomas E. (Liverpool NY) Ripka Chester D. (Syracuse NY), Low NOx primary zone radiant screen device.
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Daneri, Marco; Pastorino, Pierpaolo; Laviosa, Vittorio; Fantuzzi, Massimiliano; Zanusso, Umberto; Malfa, Enrico, Low polluting emission gas burner.
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Ramotowski, Michael J.; Joklik, Richard; Fuller, Casey; Gokulakrishnan, Ponnuthurai; Eskin, Leo; Gaines, Glenn; Roby, Richard J.; Klassen, Michael S., Method and apparatus for conditioning liquid hydrocarbon fuels.
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Ramotowski, Michael J.; Joklik, Richard; Fuller, Casey; Gokulakrishnan, Ponnuthurai; Eskin, Leo; Gaines, Glenn; Roby, Richard J.; Klassen, Michael S., Method and apparatus for conditioning liquid hydrocarbon fuels.
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Eroglu, Adnan; Carroni, Richard; Bernero, Stefano, Method for operating a burner.
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Reider ; Samuel B., Parallel stage fuel combustion system.
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Greenberg ; Paul B. ; Lohmann ; Robert P. ; Wing ; Philip M., Radial inflow combustor.
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Düsing, Michael, Reheat burner and method of mixing fuel/carrier air flow within a reheat burner.
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Vogt Robert L. (Schenectady NY), Sectoral combustor for burning low-BTU fuel gas.
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Chamberlain John (Lake Park FL), Staged combustor having aerodynamically separated combustion zones.
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Roby, Richard J.; Klassen, Michael S.; Schemel, Christopher F., System for vaporization of liquid fuels for combustion and method of use.
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Roby, Richard J.; Klassen, Michael S.; Schemel, Christopher F., System for vaporization of liquid fuels for combustion and method of use.
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Roby,Richard J.; Klassen,Michael S.; Schemel,Christopher F., System for vaporization of liquid fuels for combustion and method of use.
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Roby,Richard J.; Klassen,Michael S.; Schemel,Christopher F., System for vaporization of liquid fuels for combustion and method of use.
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[미국특허] Low emission combustion chamber 원문보기

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이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

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