[특허]Water heater with low emission gas burner

[미국특허] Water heater with low emission gas burner 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F22B-005/00
출원번호	US-0743881 (1996-11-06)
발명자 / 주소	Rodgers Ian M.
출원인 / 주소	Burner Systems International, Inc.
대리인 / 주소	Ruderman
인용정보	피인용 횟수 : 39 인용 특허 : 6

초록 ▼

An atmospheric, low emission gas burner within the combustion chamber of a hot water heater in which the combustion chamber is sealed against entry of air except for the air/gas mixture entering through the burner. The burner comprises a venturi through which gas and air enter and a diffuser disposed about the venturi, the diffuser and venturi constructed to take advantage of the high thermal buoyancy within the water heater. The burner operates at low manifold pressure and creates low emissions of NOx and CO. The burner diffuser has a multiplicity of small slots disposed on the upper surface which is covered by a course mesh fabric material having relatively large openings designed to keep the flame front above and off the diffuser while maintaining a stable flame that does not flashback. Several openings in the base of the combustion chamber permit escape of a pressure pulse that occurs upon initial ignition, a porous material or a flap covering each of the openings for permitting the pulse to escape but preventing air from entering therethrough.

대표청구항 ▼

[ Having thus set forth the nature of the invention, what is claimed herein is:] [1.] A water heater comprising a tank having a vertically extending substantially cylindrical water chamber, a combustion chamber disposed below at least a substantial portion of said water chamber, said combustion chamber having a heat transfer surface separating said water chamber from the interior of said combustion chamber, a flue communicating with said combustion chamber and extending vertically through said tank for venting said combustion chamber to ambient surroundings, a gas fired burner disposed in said combustion chamber, said burner comprising a horizontally elongated diffuser housing having an open end, a horizontally disposed elongated venturi tube having one end disposed within said diffuser and having another end extending out said diffuser for receiving flow of gaseous fuel from a source and for drawing ambient air therein with said fuel for mixing within said venturi to form a combustible mixture for burning within said diffuser, said diffuser having an upper surface including a multiplicity of ports, a course open mesh fabric disposed on said upper surface covering said ports, means for sealing said combustion chamber from said ambient surrounding such that only air drawn through said venturi enters said combustion chamber and said combustion chamber is under sub-atmospheric pressure, at least one pressure pulse alleviating opening communicating said combustion chamber with the ambient environment to permit an expanded volume of gas upon initial ignition of said mixture to escape to reduce the amplitude of the pressure associated therewith, and means for covering said openings to prevent air under ambient pressure from entering said combustion chamber.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Abalos Martin (Pomona CA), Atmospheric gas burner assembly.
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Haire Allen (Garfield Heights OH) Abele Alan C. (Zelienople PA) Kuczek Stanley W. (Aurora OH), Burner assembly.
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Ahmady Farshid (Rochester Hills MI), Burner element of woven ceramic fiber, and infrared heater for fluid immersion apparatus including the same.
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Rodgers Ian M. (Chattanooga TN) Long Kelso M. (Trenton GA), Premixed gas burner.
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Moore ; Jr. H. Jack (Playa Del Rey CA) Abalos Martin (Pomona CA), Water heater with integral burner.
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Moore ; Jr. H. Jack (Playa Del Ray CA) Abalos Martin (Pomona CA), Water heater with low NOx ceramic burner.
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이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

Overbey ; Jr. Fred A. ; Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX, Air inlets for combustion chamber of water heater.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX ; Bourke Brendan Vincent,AUX, Air inlets for water heaters.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX ; Bourke Brendan Vincent,AUX, Air inlets for water heaters.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX ; Bourke Brendan Vincent,AUX, Air inlets for water heaters.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX ; Bourke Brendan Vincent,AUX, Air inlets for water heaters.
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Bowman, John A.; Benedek, Karen R.; Schmidt, Stephan E., Apparatus and method for sensing flammable vapor.
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O'Donnell, Michael J.; Cook, Richard, Burner.
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O'Donnell, Michael J.; Cook, Richard, Burner.
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O'Donnell, Michael J.; Cook, Richard, Burner.
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O'Donnell, Michael J.; Cook, Richard D., Burner.
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Bowman John A. ; Benedek Karen R. ; Schmidt Stephan E., Burner apparatus having an air dam and mixer tube.
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Harrigill William T. ; Hall Jacob H., Combustion air shutoff system for a fuel-fired heating appliance.
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Alhamad Shaikh Ghaleb Mohammad Yassin,SAX, Flame arrester.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX ; Bourke Brendan Vincent,AUX, Flame traps for water heaters.
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Reynolds Gregory Allen ; Shropshire R. Dale, Flammable vapor resistant water heater.
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Reynolds Gregory Allen ; Shropshire R. Dale, Flammable vapor resistant water heater.
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Reynolds Gregory Allen ; Shropshire R. Dale, Flammable vapor resistant water heater.
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Boros Jozef,CAX ; Southerland Dale A., Gas-fired water heater having plate-mounted removable bottom end burner and pilot assembly.
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Overbey ; Jr. Fred A., Heat sensitive air inlets for water heaters.
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Alhamad, Shaikh Ghaleb Mohammad Yassin, Hot water heater.
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Shaikh Ghaleb Mohammad Yassin Alhamad SA, Hot water heater.
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Bourke Brendan Vincent,AUX ; Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX, Ignition inhibiting gas water heater.
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Brendan Vincent Bourke AU; Zoran Valcic AU; Geoffrey Mervyn Whitford AU, Ignition inhibiting gas water heater.
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Valcic Zoran,AUX, Ignition inhibiting gas water heater.
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Valcic Zoran,AUX, Ignition inhibiting gas water heater.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX, Ignition inhibiting gas water heater.
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Zoran Valcic AU, Ignition inhibiting gas water heater.
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Carbone, Philip; Benedek, Karen; Reich, Judith; Bramono, Dewi; Scheidler, Herwig, Method and apparatus for operating gaseous fuel fired heater.
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Carbone, Philip; Benedek, Karen; Reich, Judith; Bramono, Dewi; Scheidler, Herwig, Method and apparatus for operating gaseous fuel fired heater.
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Bowman John A. ; Benedek Karen R. ; Schmidt Stephan E., Pilot burner apparatus and method for operating.
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Shellenberger Timothy J. ; Overbey ; Jr. Fred A., Power vented water heater with air inlet.
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Overbey ; Jr. Fred A., Sealed access assembly for water heaters.
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Overbey ; Jr. Fred A. ; Watling Charles, Sealed access assembly for water heaters.
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Peart,Jacob A.; Fan,Haibo, Water heater with cross-sectionally elongated raw fuel jet pilot orifice.
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Otto Z. Vago, Water heater with flammable vapor flame arrestor and method of operation.
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Overbey ; Jr. Fred A., Water heater with heat sensitive air inlet.
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Akkala, Marc W.; Knoeppel, Ray O., Water heater with pressurized combustion.
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Akkala,Marc W.; Knoeppel,Ray O., Water heater with pressurized combustion.
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Valcic Zoran,AUX ; Whitford Geoffrey Mervyn,AUX ; Bourke Brendan Vincent,AUX, Water heaters with flame traps.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Water heater with low emission gas burner 원문보기