EP0594988A1 - Verdampfungsbrenner - Google Patents

Verdampfungsbrenner Download PDF

Info

Publication number
EP0594988A1
EP0594988A1 EP93114279A EP93114279A EP0594988A1 EP 0594988 A1 EP0594988 A1 EP 0594988A1 EP 93114279 A EP93114279 A EP 93114279A EP 93114279 A EP93114279 A EP 93114279A EP 0594988 A1 EP0594988 A1 EP 0594988A1
Authority
EP
European Patent Office
Prior art keywords
fuel
air
guide pipe
combustion
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93114279A
Other languages
English (en)
French (fr)
Other versions
EP0594988B1 (de
Inventor
Hisashi Fukunaga
Katsuji Sawada
Yuuzou Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mikuni Adec Corp
Original Assignee
Mikuni Adec Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mikuni Adec Corp filed Critical Mikuni Adec Corp
Publication of EP0594988A1 publication Critical patent/EP0594988A1/de
Application granted granted Critical
Publication of EP0594988B1 publication Critical patent/EP0594988B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D3/00—Burners using capillary action
    • F23D3/40—Burners using capillary action the capillary action taking place in one or more rigid porous bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner

Definitions

  • the present invention relates to a vaporizing type burner preferably employable for a heating unit such as a heater for a vehicle, a heater for a ship, a multi-purposed portable type heater or the like.
  • a vehicle or a ship is usually equipped with one or more vaporizing type burners for the purpose of heating as disclosed in an official gazette of e.g., JP-A 59-60109.
  • a conventional vaporizing type burner includes a cylindrical body in which a combustion chamber is formed in such a manner that a fuel absorbing section is arranged directly in the combustion chamber or the fuel absorbing chamber is located opposite to the combustion chamber in order to produce a fuel vapor by vaporizing a fuel from the fuel absorbing section.
  • an air inflow hole is formed through a peripheral wall of a cylindrical body for the purpose for allowing combustion air to flow through the air inflow hole, whereby the combustion air introduced into the combustion chamber and the fuel vaporized from the fuel absorbing section are mixed with each other in the combustion chamber to produce a mixture gas consisting of the fuel vapor and the combustion air.
  • the resultant mixture gas is ignited by activating an igniting plug.
  • the conventional vaporizing type burner is constructed such that the fuel vapor and the combustion air are introduced into the combustion chamber from separate positions, there arises a malfunction so that it is practically difficult to completely mix the combustion gas with the fuel vapor, and moreover, it is also practically difficult to properly determine the position where the air inflow hole is to be formed on the peripheral wall surface of the cylindrical body, resulting in satisfactory combustion failing to be achieved with the conventional vaporizing type burner.
  • the present invention has been made in consideration of the foregoing background.
  • An object of the present invention is to provide a vaporizing type burner which ensures that the operation lifetime of the burner can substantially be elongated by minimizing the deposition of resultant products derived from combustion on a fuel absorber, a mixer, an ignition plug and associated components after a combustion gas has been produced in the combustion chamber.
  • Another object of the present invention is to provide a vaporizing type burner which ensures that an improved combustion efficiency can be obtained by elongating a travel distance in the movement of a mixture gas consisting of air and vaporized fuel so as to allow the air and the vaporized fuel to be satisfactorily mixed with each other in the cylindrical mixer.
  • Another object of the present invention is to provide a vaporizing type burner which ensures that the vaporized fuel can reliably be ignited by an ignition plug in the combustion chamber without any production of white smoke-like unburnt fuel gas derived from incomplete combustion in the combustion chamber.
  • the present invention provides a vaporizing type burner wherein the fuel received in a fuel absorber is vaporized, the vaporized fuel is mixed with combustion air to prepare a mixture gas which in turn is ignited and burnt by an ignition plug in a combustion chamber defined by a cylindrical body, wherein the vaporizing type burner is characterized in that it includes: a support member having the fuel absorber received therein without any direct exposure to the combustion chamber; an air swirl flow chamber into which the combustion chamber is introduced in the spirally flowing state; a cylindrical mixer having a mixing path formed therein so as to allow the combustion air from the air swirl flow chamber and the vaporized fuel from the fuel absorber to be mixed with each other in the mixing path of the cylindrical mixer, the cylindrical mixer being axially protruded in the combustion chamber; a number of blow ports formed around the outer periphery of the cylindrical mixer to provide a communication between the mixing path and the combustion chamber via the blow ports; a guide pipe having the ignition plug received therein; an air introduction path formed around the ignition plug while providing a communication with
  • the ignition lug To activate the ignition plug with electricity, the ignition lug includes a rod-shaped electrical heating portion made of a tungsten wire or the like.
  • the guide pipe having the ignition plug received therein is provided to extend through the support member and the fuel absorber.
  • the ignition flame blow holes are formed through the guide pipe at positions in the vicinity of the foremost end of the ignition plug.
  • the ignition flame blow holes may be formed at different positions as seen in the axial direction of the guide pipe.
  • a recirculating chamber of which the one end is communicating with the combustion chamber and of which the other end is communicating with an inlet port of the cylindrical mixer, is formed between a wall plate of a case and the support member so that a part of the combustion gas produced in the combustion chamber is introduced into the recirculating chamber in the flameless state so as to allow the foregoing part of the combustion gas to be introduced into the mixing path of the cylindrical mixer together with the combustion air from the air swirl flow chamber.
  • the air swirl flow chamber includes a plurality of spirally extending guide blade fixedly secured to the wall plate of the case.
  • the vaporizing holes formed through the guide pipe serve to allow the fuel vaporized from the fuel absorber to be introduced directly into the air introduction path of the mixing pipe via the vaporizing holes.
  • Fig. 1 is a sectional side view of a vaporizing type burner constructed according to an embodiment of the present invention.
  • Fig. 2 is a fragmentary enlarged cross-sectional view of the vaporizing type burner taken along line A - A in Fig. 1.
  • the vaporizing type burner (hereinafter referred to simply as a burner) includes a casing 10 and a cover 12 both of which define an air swirl flow chamber 14.
  • the casing 10 includes an air inlet port 16 through which combustion air is introduced into the air swirl flow chamber 14.
  • a plurality of arc-shaped guide plates 20 (three guide plates 20 in the shown embodiment) are fixedly secured to a wall plate 18 of the casing 10 in the air swirl flow chamber 14, see Fig. 2.
  • each of the guide plates 20 is contoured such that the inflow of the combustion air through the inlet port 16 is oriented toward the central part of the air swirl flow chamber 14 along the respective guide plates 20.
  • a short cylindrical member 22 projecting away from the guide plates 20 is made integral with the wall plate 18 at the central part of the air swirl flow chamber 14 so that an air path 24, i.e., the inner space of the cylindrical member 22 is communicating with the air swirl flow chamber 14 so as to allow the combustion air introduced into the air path 24 from the air swirl flow chamber 14 to be blown out through an outlet port 26.
  • a cylindrical body 28 of which opposite ends are open and exposed to the outside is attached to the rear surface of the wall plate 18 relative to the guide plates 20 with a sealing member 30 interposed between the wall plate 18 and the cylindrical body 28.
  • the wall plate 18 of the casing 10 serves as a closed end surface of the cylindrical body 28 on the left-hand side of the latter.
  • a cylindrical support member 32 is attached to the wall plate 18 in a spaced relationship with a predetermined gap held therebetween.
  • An annular fuel absorber 34 made of a porous ceramic material, a metallic material or the like is received together with a cylindrical mixer 48 to be described later in the support member 34 without any direct exposure to a combustion chamber 46.
  • a fuel supply tube 36 is provided to extend through the wall plate 18, the cover 12 and the casing 10.
  • a plurality of spacers 32 are interposed between the wall plate 18 and the support member 32 in a clamped state, and the support member 32 having the fuel absorber 34 received therein is fixedly secured to the wall plate 18 together with the spacers 38 by tightening a plurality of bolts 4. Since the spacers 32 are arranged in the above-described manner, a recirculating chamber 42 is defined in the form of a hollow space between the support member 32 and the wall plate 18.
  • the support member 32 includes a homogenizing or uniformalizing chamber 43 on the left-hand side thereof adjacent to the recirculating chamber 42, and the uniformalizing chamber 42 is communicating with the hollow space having the fuel absorber 34 received therein so that the fuel vaporized from the fuel absorber 34 is introduced into the uniformalizing chamber 43 through a plurality of first vaporizing ports 44 so as to allow the uniformalizing chamber 43 to be filled with the vaporized fuel having a constant concentration.
  • the support member 32 and the cylindrical body 28 are arranged in a concentrical relationship to define an annular gap 45 between the outer peripheral surface of the support member 32 and the inner peripheral surface of the cylindrical body 28 to serve as a communication path between the combustion chamber 46 and the recirculating chamber 42.
  • the combustion chamber 46 is communicating with the recirculating chamber 42 via the annular gap 45.
  • the inner space of the cylindrical body 28 of which left-hand end is closed with the wall plate 18 is substantially composed of the combustion chamber 26 defining a main part of the space of the cylindrical body 28 on the opposite side relative to the wall plate 18, the annular communication path 45, and the recirculating chamber 42 communicating with the latter.
  • the recirculating chamber 42 is communicating with the combustion chamber 46 via the annular communication path 45.
  • the cylindrical mixer 48 of which the right-hand end is closed with an end plate is axially protruding through the central part of the supporting member 32 and the fuel absorber 34 while the left-hand end of the cylindrical mixer 48 is secured to the support member 32.
  • An opening portion of the cylindrical mixer 48 located on the left-hand side is located opposite to the wall plate 18, and the opening portion of the cylindrical mixer 48 is slightly protruding from the fuel absorber 34 toward the wall plate 18.
  • the center axis of the cylindrical mixer 48 is located to coincide with the center axis of the cylindrical member 22, and an inner diameter of the cylindrical mixer 48 is dimensioned to be larger than an outer diameter of the cylindrical member 22.
  • a blowing port 26 at the foremost end of the cylindrical member 22 is not usually protruding inside of the opening portion of the cylindrical mixer 4.
  • the present invention is not limited only to this structure.
  • the blowing port 26 of the cylindrical member 22 may slightly be received in the cylindrical mixer 48.
  • the inner space of the cylindrical mixer 48 serving as a mixing path 50 is communicating with the recirculating chamber 42 via an annular gap defined between the opening portion of the cylindrical mixer 48 and the foremost end of the cylindrical member 22.
  • the right-hand closed end of the cylindrical mixer 48 is largely protruding into the combustion chamber 46 away from the supporting member 32, and a number of blow ports 52 each serving as a burning flame blow port are formed around the outer peripheral surface of the cylindrical mixer 48.
  • a plurality of second vaporizing ports 54 are formed through the cylindrical mixer 48 on the left-hand side of the latter at the positions located around the inner peripheral surface of the cylindrical mixer 48 in an equally spaced relationship.
  • the fuel vaporized from the fuel absorber 34 enters the uniformalizing chamber 43 via a plurality of first vaporizing ports 44 formed through a partition plate between the fuel absorber 34 and the uniformalizing chamber 43 so that the vaporized fuel is uniformly mixed with the combustion air introduced into the uniformalizing chamber 42 via a plurality of third vaporizing holes 55 formed through the left-hand side wall of the support chamber 32.
  • the resultant mixture consisting of vaporized fuel and combustion air is blown into the inner space of the cylindrical mixer 48, i.e., the mixing path 50 in the uniformalized state through the second vaporizing holes 54.
  • a cylindrical ignition plug holder 56 is fixedly secured to the wall plate 18 while it is projecting inside of the wall plate 18.
  • the left-hand end of the ignition plug holder 56 is opened and exposed to the air swirl flow chamber 14, while the right-hand end of the same is opened and exposed to the combustion chamber 46.
  • a cylindrical guide pipe 58 is firmly fitted to the ignition plug holder 56 on the right-hand side of the latter.
  • the guide pipe 58 is provided to extend through the support member 32 and the fuel absorber 34, and an opening portion 59 of the guide pipe 58 at the foremost end of the latter reaches a predetermined position at the central part of the combustion chamber 46.
  • Both the ignition plug holder 56 and the guide pipe 58 are provided so as to extend in parallel with the cylindrical mixer 48 in the region below the cylindrical mixer 48.
  • the guide pipe 58 is projecting inside of the wall plate 18 while extending through the lower part of the fuel absorber 34.
  • An ignition plug 60 including a rod-shaped heating portion is held in the ignition plug holder 56 and the guide pipe 58. It is recommendable that a so-called glow plug molded of a ceramic material such as silicon nitride or the like and having a heating element of a tungsten wire embedded in the ceramic material is employed for the ignition plug 60.
  • the structure of the glow plug should not be limited only to the foregoing one. Any type of ignition plug may be employed for the burner, provided that it is proven that it is properly activated with electricity.
  • the foremost end of the ignition plug 60 is located inside of the fuel absorber 34 while the ignition plug 60 is axially projecting toward the combustion chamber 46.
  • an annular air introduction path 62 is formed in the guide pipe 58 while making communication with the air swirl flow chamber 14. It is obvious that the ignition plug holder 56 and the guide pipe 58 may be integrated with each other.
  • a plurality of fourth vaporizing holes 64 are formed through the guide pipe 58 at suitable positions defined in the fuel absorber 34. As fuel is vaporized from the fuel absorber 34, the vaporized fuel is introduced into the air introduction path 62 via the fourth vaporizing holes 64.
  • a plurality of ignition flame outlet blow holes 66 are formed through the guide pipe 59 at positions in the vicinity of the foremost end of the ignition plug 60 while providing a communication with the combustion chamber 46.
  • the combustion air introduced from the air swirl flow chamber 14 and the vaporized fuel introduced through the fourth vaporizing holes 64 are mixed with each other in the air introduction path 62 so that the resultant mixture gas is ignited by the ignition plug 60, causing the ignition flame to be blown into the combustion chamber 46 through the ignition flame holes 66 and the opening portion 59.
  • combustion air As combustion air is introduced into the air swirl flow chamber 14 via the air inlet port 16, it is collected at the central part of the air swirl flow chamber 14 while swirling around the guide plates 20. Subsequently, the combustion air spirally enters the air path 24 in the cylindrical member 22 and it is then introduced into the mixing path 50 of the cylindrical mixer 48.
  • fuel is continuously supplied in the fuel absorber 34 through the fuel supply tube 36. Once the fuel has been ignited, the fuel absorber 34 is heated, causing the fuel received in the fuel absorber 34 to be vaporized to form an inflammable vapor.
  • the combustion air flows in the mixing path 50 via the outlet port 26 of the air path 24 the vaporized fuel in the uniformalizing chamber 43 is introduced into the mixing path 50 by the function of outflow of the combustion air.
  • the combustion air and the vaporized fuel are mixed with each other in the mixing path 48 of the cylindrical mixer 48.
  • the combustion air and the vaporized fuel are satisfactorily mixed with each other.
  • the vaporized fuel which has entered the recirculating chamber 42 via the third vaporizing holes 55 is introduced from the recirculating chamber 42 into the mixing path 50 together with the combustion air.
  • the resultant mixture gas is blown into the combustion chamber 47 while flowing radially through the blow ports 52.
  • the ignition plug 60 When the mixture gas is to be ignited, the ignition plug 60 is first activated with electricity to generate heat for heating the fuel absorber 34 therewith. As fuel in the fuel absorber 34 has been vaporized to generate fuel vapor, a part of the vaporized fuel enters the air introduction path 62 directly via the fourth vaporizing holes 64 to prepare a mixture gas consisting of combustion air and vaporized fuel in the air introduction path 62. Subsequently, the mixture gas is ignited with the ignition plug 60 to produce an ignition flame. This ignition flame is blown into the combustion chamber 46 via a plurality of ignition flame blow holes 66 as well as the opening portion 59 at the foremost end of the guide pipe 58. The ignition flame blown through the ignition flame blow holes 66 and the ignition flame blown through the opening portion 59 serve to heat the cylindrical mixer 48 at a plurality of locations.
  • the ignition plug 60 is surrounded by the guide pipe 58 into which combustion air and vaporized fuel are introduced to produce an ignition flame by igniting the mixture gas with the ignition plug 60, and subsequently, the ignition flame is blown into the combustion chamber 46 not only through the blow ports 52 at the base end part of the cylindrical mixer 48 but also through the blow ports 52 located remote from the base end part of the cylindrical mixer 48, whereby the cylindrical mixer 48 can be heated at many locations.
  • a plurality of ignition flame blow holes 66 are formed through the guide pipe 58 at a single location as seen in the axial direction.
  • a plurality of ignition flame blowing holes 66 may be formed through the guide pipe 58 at a plurality of locations as seen in the axial direction of the guide pipe 58 having an increased length.
  • the guide pipe 58 includes an opening portion at the foremost end thereof. Since an ignition flame is blown also through the opening portion 59, it may be considered that the opening portion 59 likewise serves as a kind of ignition flame blow port.
  • the ignition plug 60 since the ignition plug 60 does not come directly in contact with the fuel absorber 34, even in the case that ignition fails to take place due to a lower temperature, there does not arise a necessity for draining the remaining fuel from the fuel absorber 34. Thus, an igniting operation can easily be restarted within a short time.
  • the support member 32 After the ignition of the mixture gas in the combustion chamber 46, the support member 32 is heated by the combustion gas produced in the combustion chamber 46, and the fuel absorber 34 is then heated by the heat conducted from the support member 32. Since a part of the combustion gas produced in the combustion chamber 46 reaches the recirculating chamber 42 via the communication path 45, the fuel absorber 34 is additionally heated by the foregoing part of the combustion gas which has reached the recirculating chamber 42.
  • the foregoing part of the combustion gas is introduced into the mixing path 50 of the cylindrical mixer 48 together with the combustion air blown from the blow port 26 of the combustion air path 24 via the communication path 45 and the recirculating chamber 42. Additionally, the foregoing part of the combustion gas is mixed with the vaporized fuel blown through the third vaporizing holes 55, and the resultant hot mixture gas is then introduced into the mixing chamber 50. Since the mixture gas introduced in the mixing chamber 50 in that way is kept hot by the combustion gas contained in the mixture gas, it is burnt in the combustion chamber 46 at a higher temperature after it has been blown through the blow ports 52 on the cylindrical mixture 48. Thus, the normal combustion proceeds in the combustion chamber 46 at a higher temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wick-Type Burners And Burners With Porous Materials (AREA)
  • Spray-Type Burners (AREA)
EP19930114279 1992-10-28 1993-09-06 Verdampfungsbrenner Expired - Lifetime EP0594988B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP311077/92 1992-10-28
JP4311077A JP2520078B2 (ja) 1992-10-28 1992-10-28 蒸発式バ―ナ

Publications (2)

Publication Number Publication Date
EP0594988A1 true EP0594988A1 (de) 1994-05-04
EP0594988B1 EP0594988B1 (de) 1998-05-13

Family

ID=18012845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930114279 Expired - Lifetime EP0594988B1 (de) 1992-10-28 1993-09-06 Verdampfungsbrenner

Country Status (3)

Country Link
EP (1) EP0594988B1 (de)
JP (1) JP2520078B2 (de)
DE (1) DE69318509T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997001729A1 (de) * 1995-06-28 1997-01-16 J. Eberspächer Gmbh & Co. Vorrichtung zur zufuhr und zündung von insbesondere benzin als brennstoff für einen verdampfungsbrenner eines heizgerätes
DE102008028316A1 (de) * 2008-06-13 2009-12-17 J. Eberspächer GmbH & Co. KG Brennkammerbaugruppe für einen Verdampferbrenner, insbesondere bei einem Fahrzeugheizgerät

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040046763A (ko) * 2002-11-28 2004-06-05 현대자동차주식회사 차량용 연소식 히터
DE10323899B3 (de) * 2003-05-26 2004-08-26 J. Eberspächer GmbH & Co. KG Brennkammeranordnung
US7343133B2 (en) 2004-12-15 2008-03-11 Canon Kabushiki Kaisha Cleaning brush and image forming apparatus
CN106402855B (zh) * 2016-08-31 2018-09-07 北京北机机电工业有限责任公司 一种高热流密度燃烧室

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086579A (en) * 1959-06-10 1963-04-23 Test Inst Corp Liquid fuel heater
US3602621A (en) * 1969-11-05 1971-08-31 Stewart Warner Corp Recirculating fuel burner
EP0389807A2 (de) * 1989-03-31 1990-10-03 Webasto AG Fahrzeugtechnik Mit flüssigem Brennstoff betriebenes Heizgerät
DE4225749A1 (de) * 1991-08-06 1993-02-11 Mikuni Kogyo Kk Verdampfungsbrenner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086579A (en) * 1959-06-10 1963-04-23 Test Inst Corp Liquid fuel heater
US3602621A (en) * 1969-11-05 1971-08-31 Stewart Warner Corp Recirculating fuel burner
EP0389807A2 (de) * 1989-03-31 1990-10-03 Webasto AG Fahrzeugtechnik Mit flüssigem Brennstoff betriebenes Heizgerät
DE4225749A1 (de) * 1991-08-06 1993-02-11 Mikuni Kogyo Kk Verdampfungsbrenner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997001729A1 (de) * 1995-06-28 1997-01-16 J. Eberspächer Gmbh & Co. Vorrichtung zur zufuhr und zündung von insbesondere benzin als brennstoff für einen verdampfungsbrenner eines heizgerätes
US5938429A (en) * 1995-06-28 1999-08-17 J. Eberspacher Gmbh & Co. Device for feeding and igniting in particular gasoline as fuel for a vaporizing burner of a heater
DE102008028316A1 (de) * 2008-06-13 2009-12-17 J. Eberspächer GmbH & Co. KG Brennkammerbaugruppe für einen Verdampferbrenner, insbesondere bei einem Fahrzeugheizgerät

Also Published As

Publication number Publication date
DE69318509T2 (de) 1999-01-21
JPH074618A (ja) 1995-01-10
DE69318509D1 (de) 1998-06-18
JP2520078B2 (ja) 1996-07-31
EP0594988B1 (de) 1998-05-13

Similar Documents

Publication Publication Date Title
US5197871A (en) Vaporizing type burner
US4789331A (en) Liquid fuel burner
US4640262A (en) Heater, especially a heater for vehicles
EP0594988A1 (de) Verdampfungsbrenner
US4858432A (en) Pilot burner for an apparatus for burning off solid particles in the exhaust gas of internal combustion engines
US4982565A (en) Pilot burner for a device for burning solids in the exhaust gas of internal combustion engines
JPH0526086B2 (de)
SU1058521A3 (ru) Форсунка
US4720257A (en) Burner for campstove
RU2000128735A (ru) Горелка для жидкотопливных аппаратов сжигания
JPH0642711A (ja) 蒸発式バーナ
JP2001330212A (ja) 燃焼式加熱装置
CN101196293A (zh) 一种热气机用预混旋流平焰式燃烧器
JP2520071B2 (ja) 蒸発式バ―ナ
JPH0335944Y2 (de)
JPH054561B2 (de)
JPH03117804A (ja) 液体燃料燃焼装置
JPH06213412A (ja) 蒸発式バーナ
JPH0362964B2 (de)
JPH08583Y2 (ja) 燃焼器
JPS6016825Y2 (ja) 燃焼装置
JPH06174209A (ja) 蒸発式バーナ
JPS6315004A (ja) 燃焼器
JP2000283410A (ja) 液体燃料燃焼装置
JP2005291667A (ja) ガスコンロ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE SE

17P Request for examination filed

Effective date: 19940422

17Q First examination report despatched

Effective date: 19950623

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE SE

REF Corresponds to:

Ref document number: 69318509

Country of ref document: DE

Date of ref document: 19980618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980907

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EUG Se: european patent has lapsed

Ref document number: 93114279.8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990701