EP1327820B1 - Brennkammergruppe, insbesondere für ein Fahrzeugheizgerät - Google Patents
Brennkammergruppe, insbesondere für ein Fahrzeugheizgerät Download PDFInfo
- Publication number
- EP1327820B1 EP1327820B1 EP02021003A EP02021003A EP1327820B1 EP 1327820 B1 EP1327820 B1 EP 1327820B1 EP 02021003 A EP02021003 A EP 02021003A EP 02021003 A EP02021003 A EP 02021003A EP 1327820 B1 EP1327820 B1 EP 1327820B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- wall
- diaphragm
- diverter
- flame tube
- 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.)
- Expired - Lifetime
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
-
- 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
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00016—Preventing or reducing deposit build-up on burner parts, e.g. from carbon
Definitions
- the present invention relates to a combustion chamber assembly according to the preamble of claim 1.
- Such a combustion chamber assembly is e.g. from US 4,471,754 and the US 4,623,310 known.
- FIG. 1 A combustor assembly, as they generally use used in vehicle heaters or auxiliary heaters Heaters, is shown in Fig. 1.
- a combustion chamber housing 12s which with an approximately cylindrically shaped outer wall 14s a Combustion chamber 1 6s limited radially outward.
- a ground area 18s of the combustion chamber housing 12s extends coaxially with the outer wall 14s and with respect to a longitudinal axis A of the combustion chamber assembly 10s an approximately cylindrical inner wall 20s, through a End region 22s is completed axially.
- the outer wall 14s and the inner wall 20s thus define an approximate combustion chamber 16s ring-like shape, in the region of a corresponding annular Outlet opening 24s axially toward one to the combustion chamber housing 12s subsequent flame tube 26s is open.
- several air inlet openings 28s are provided by which through the combustion air required for combustion in the Combustion chamber 16s also under the conveying effect of a not shown Blowers can get.
- At one of the combustion chamber facing inside 30s of the outer wall 14s is an example of nonwoven material or other porous Material formed lining 32s provided. Also on the inner wall 20s can be located at their facing the combustion chamber 16s out Page 34s a made of metal mesh lining 36s soundproofing reasons be provided. Via a fuel supply line 39s, the fuel is introduced into the combustion chamber 16s can be done by a spray nozzle, not shown, or also by introduction, for example, in the lining 30s under utilization an evaporation effect.
- an unillustrated ignition device such as a Glühzündux, which At the beginning of an operating phase ensures that by atomization or vaporization ignited in the combustion chamber 16s fuel and thus the combustion begins.
- the case of combustion in the Combustion chamber 16s generated exhaust gases and the combustion flame occur in the region of the outlet opening 24s from the combustion chamber housing 12s and flow, as indicated by arrows, through a central Opening 38s in the flame tube 26s of the outlet opening 24s of the combustion chamber housing 12s opposite positioned exhaust baffle 40s therethrough.
- a problem with such combustor assemblies or this aus laden Heating equipment is that in the axial direction a comparatively strong Temperature gradient is present.
- the temperature in the area of the flame tube is comparatively high while the temperature is in the range of Combustor housing is relatively low.
- Also on the outside of the flame tube if necessary recirculated exhaust gases are already so far cooled, causing a significant heating of the combustion chamber housing can not contribute anymore.
- the fuel evaporation especially at very low outside temperatures the starting phase, i. the phase until reaching the required Rated power, be very long.
- this object is achieved by a combustion chamber assembly according to claim 1.
- the baffle in a diaphragm end wall a passage opening, which the combustion chamber outlet opening opposite is positioned horizontally and has a smaller dimension, as the combustion chamber exit opening.
- a Created according to the injector principle working structure in which by the directly flowing into the flame tube partial flow a negative pressure is generated, which is essentially responsible for that one Part of the combustion chamber leaving gases or exhaust gases through the deflector in a defined manner for flowing around the combustion chamber housing is deflected on its outside.
- a particularly advantageous embodiment in terms of flow technology provides that the baffle with hollow truncated Form is formed and that the combustion chamber housing in the deflector intervenes. Further, it can be provided that between the deflection and the flame tube, a deflected exhaust gas flow toward a Flammrohraustrittsö réelle opening leading flow channel area formed is. This flow channel region has a throttling function, so that by specifying the flow cross section in this area as well taking into account the previously described and by the in the flame tube directly leaving mainstream generated negative pressure Flow rate of contributing to combustion chamber housing heating Exhaust gases can be adjusted.
- the present invention further relates to a heater, in particular for a Vehicle, in which heater, a combustion chamber assembly according to the invention is provided.
- the inventive combustion chamber assembly 10 shown in FIG. 2 corresponds to the preceding with respect to essential design features already discussed in detail with reference to FIG. 1 and from the Known prior art combustion chamber assembly. So also points the Combustion chamber assembly 10 according to the invention a combustion chamber housing 12 with an outer wall 14 and an inner wall 20, the define an approximately annular combustion chamber 16 between them. This is axially open via the combustion chamber outlet opening 24. At the the combustion chamber 16 facing the inside of the outer wall 14 is the liner 32 is provided. In a similar way is also at the Inner wall 20 in turn, the liner 36 available.
- the exhaust panel 40 forms in the combustion chamber assembly according to the invention 10 shows a deflector assembly, generally designated 50. you recognizes that even with this exhaust panel 40 a central, to the longitudinal axis A approximately concentric opening 38 is present, the Outside dimension, so for example diameter, is smaller than the corresponding outer dimension of the combustion chamber 16, said outer dimension essentially given by the outer wall 14 and the lining 32.
- the exhaust panel 40 has radially outward adjacent to its outlet wall 24 opposite the end wall 52 an outer wall 54 on.
- the outer wall 54 and the End wall 52 together form substantially a frustoconical Cup shape, wherein, as can be seen in Fig.
- the outer wall 54 is dimensioned such that it has a larger Dimension, for example, again diameter, than the Outer wall 14 of the combustion chamber housing 12.
- the exhaust panel 40 is positioned such that it axially the combustion chamber housing 12 partially overlaps.
- a ring-like flow space 56 is formed, through which at least a portion of the incident on the end wall 52 and thus by this End wall 52 and the outer wall 54 deflected exhaust gases will flow.
- these exhaust gases flow along the outside 44 of the Outside wall 14 of the combustion chamber housing 12 and transmit it Heat on the combustion chamber housing 12.
- the principle of the invention is Furthermore, essentially independent of the fuel used since the temperatures generated in the combustion chamber above the boiling point the for such combustors or these having Heaters used fuels, such as Diesel or fuel oil, lie. In addition to a significantly more efficient operation can also be a significant Reduction of the soot components produced during combustion and the in the area of the combustion chamber bounding walls knocking down Deposits are achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Resistance Heating (AREA)
- Spray-Type Burners (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Description
- Fig. 1
- eine Längsschnittansicht einer aus dem Stand der Technik bekannten Brennkammerbaugruppe;
- Fig. 2
- eine Längsschnittansichteiner erfindungsgemäßen Brennkammerbaugruppe.
Claims (5)
- Brennkammerbaugruppe (12), insbesondere für ein Fahrzeugheizgerät, umfassend ein Brennkammergehäuse, in welchem durch eine Brennkammeraußenwandung (14) eine Brennkammer (16) begrenzt ist, wobei die Brennkammer (16) eine Brennkammeraustrittsöffnung (24) aufweist zum Austritt von bei Verbrennung erzeugten Abgasen zu einem Flammrohr (26), wobei
eine Ablenkanordnung (50) zum Ablenken wenigstens eines Teilstroms der die Brennkammer (16) verlassenden Abgase zum Strömen entlang wenigstens eines Teilbereichs der von der Brennkammer (16) abgewandt liegenden Außenseite (44) der Brennkammeraußenwandung (14) vor dem Eintritt in das Flammrohr (26) vorgesehen ist, welche
eine der Brennkammeraustrittsöffnung (24) gegenüber liegende Ablenkblende (40) umfasst,
dadurch gekennzeichnet, dass die Ablenkblende (40) in einer Blendenstirnwandung (52) eine Durchtrittsöffnung (38) aufweist, welche der Brennkammeraustrittsöffnung (24) gegenüber liegend positioniert ist und eine kleinere Abmessung aufweist, als die Brennkammeraustrittsöffnung (24). - Brennkammerbaugruppe nach Anspruch 1,
dadurch gekennzeichnet, dass die Ablenkblende (40) mit einer Blendenaußenwandung (54) das Brennkammergehäuse (12) wenigstens bereichsweise übergreift. - Brennkammerbaugruppe nach Anspruch 1 und Anspruch 2,
dadurch gekennzeichnet, dass die Ablenkblende (40) mit hohlkegelstumpfartiger Form ausgebildet ist und dass das Brennkammergehäuse (12) in die Ablenkblende (40) eingreift. - Brennkammerbaugruppe nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass zwischen der Ablenkblende (40) und dem Flammrohr (26) ein den abgelenkten Abgasstrom in Richtung zu einer Flammrohraustrittsöffnung (42) führender Strömungskanalbereich (60) gebildet ist. - Heizgerät, insbesondere für ein Fahrzeug, umfassend eine Brennkammerbaugruppe (10) nach einem der vorangehenden Ansprüche.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200524A DE10200524C5 (de) | 2002-01-09 | 2002-01-09 | Brennkammerbaugruppe, insbesondere für ein Fahrzeugheizgerät |
DE10200524 | 2002-01-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1327820A1 EP1327820A1 (de) | 2003-07-16 |
EP1327820A8 EP1327820A8 (de) | 2003-11-12 |
EP1327820B1 true EP1327820B1 (de) | 2005-07-20 |
Family
ID=7711729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02021003A Expired - Lifetime EP1327820B1 (de) | 2002-01-09 | 2002-09-20 | Brennkammergruppe, insbesondere für ein Fahrzeugheizgerät |
Country Status (5)
Country | Link |
---|---|
US (1) | US6811395B2 (de) |
EP (1) | EP1327820B1 (de) |
JP (1) | JP2003240211A (de) |
AT (1) | ATE300016T1 (de) |
DE (2) | DE10200524C5 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314836A1 (de) * | 2003-04-01 | 2004-10-28 | J. Eberspächer GmbH & Co. KG | Brenneranordnung für ein Heizgerät und Heizgerät, insbesondere Fahrzeugheizgerät |
DE10343282B3 (de) * | 2003-09-18 | 2005-04-21 | J. Eberspächer GmbH & Co. KG | Brenneranordnung, insbesondere für ein Fahrzeugheizgerät |
DE102004002246A1 (de) * | 2004-01-15 | 2005-08-11 | J. Eberspächer GmbH & Co. KG | Vorrichtung zur Erzeugung eines Luft/Kohlenwasserstoff-Gemischs |
DE102006024221A1 (de) * | 2006-05-23 | 2007-11-29 | J. Eberspächer GmbH & Co. KG | Verdampferbaugruppe, insbesondere für ein Fahrzeugheizgerät oder eine Reformeranordnung eines Brennstoffzellensystems |
GB0902221D0 (en) * | 2009-02-11 | 2009-03-25 | Edwards Ltd | Pilot |
DE102013214387B4 (de) * | 2013-07-23 | 2020-10-22 | Eberspächer Climate Control Systems GmbH | Einströmelement, insbesondere für einen Verbrennungsluftströmungsweg im Fahrzeugheizgerät |
DE102014103812A1 (de) | 2014-03-20 | 2015-09-24 | Webasto SE | Verdampferbrenner für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät |
DE102014103815B4 (de) | 2014-03-20 | 2018-07-19 | Webasto SE | Verdampferbrenner |
DE102014103817B4 (de) | 2014-03-20 | 2018-07-19 | Webasto SE | Verdampferbrenner für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät |
DE102014103813A1 (de) | 2014-03-20 | 2015-09-24 | Webasto SE | Verdampferbrenneranordnung für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät |
AU2017244041B2 (en) | 2016-03-30 | 2022-12-01 | Marine Canada Acquisition Inc. | Vehicle heater and controls therefor |
DE102018131253A1 (de) | 2018-12-07 | 2020-06-10 | Eberspächer Climate Control Systems GmbH & Co. KG | Brennkammerbaugruppe |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1257396B (de) * | 1962-10-04 | 1967-12-28 | Eberspaecher J | Mit fluessigem Brennstoff betriebener Zerstaeuberbrenner, insbesondere fuer Heizgeraete |
FR1571918A (de) * | 1967-07-07 | 1969-06-20 | ||
DE3136839A1 (de) * | 1981-09-16 | 1983-03-31 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Fahrzeugheizung |
US4623310A (en) * | 1985-04-24 | 1986-11-18 | Mikuni Kogyo Kabushiki Kaisha | Vaporized liquid fuel combustion apparatus |
WO1987000605A1 (fr) * | 1985-07-18 | 1987-01-29 | Alain Guerin | Reacteur thermique pour ameliorer le rendement de combustion d'un bruleur |
FR2643136B1 (fr) * | 1989-02-14 | 1991-06-14 | Lavorel Henri | Reacteur thermique en particulier pour chaudiere et generateur au fuel |
DE4111915C3 (de) * | 1991-04-12 | 1998-08-13 | Froeling Kessel App | Heizkessel für die Verbrennung flüssiger oder gasförmiger Brennstoffe |
CH682765A5 (de) * | 1992-07-02 | 1993-11-15 | Rudolf Mueller | Brenner mit torusförmiger, zyklonischer Gasführung. |
DE4304057A1 (de) * | 1993-02-11 | 1994-08-18 | Froeling Kessel App | Heizkessel zur schadstoffarmen Verbrennung |
DE19529994C2 (de) * | 1994-11-10 | 2003-06-26 | Eberspaecher J Gmbh & Co | Verdampferbrenner für ein Heizgerät |
DE29511384U1 (de) * | 1995-07-14 | 1995-10-12 | Eberspaecher J | Verdampfungsbrennkammer für ein mit flüssigem Brennstoff betriebenes Heizgerät |
DE19645180A1 (de) * | 1996-11-02 | 1998-05-07 | Eberspaecher J Gmbh & Co | Druckzerstäuberbrenner für ein motorunabhängiges Fahrzeugheizgerät |
JP3773152B2 (ja) * | 1997-12-09 | 2006-05-10 | 株式会社ミクニアデック | 車両用蒸発燃焼式ヒータ |
-
2002
- 2002-01-09 DE DE10200524A patent/DE10200524C5/de not_active Expired - Fee Related
- 2002-09-20 EP EP02021003A patent/EP1327820B1/de not_active Expired - Lifetime
- 2002-09-20 DE DE50203673T patent/DE50203673D1/de not_active Expired - Lifetime
- 2002-09-20 AT AT02021003T patent/ATE300016T1/de not_active IP Right Cessation
-
2003
- 2003-01-07 JP JP2003000826A patent/JP2003240211A/ja active Pending
- 2003-01-09 US US10/339,140 patent/US6811395B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6811395B2 (en) | 2004-11-02 |
EP1327820A8 (de) | 2003-11-12 |
US20030138751A1 (en) | 2003-07-24 |
DE50203673D1 (de) | 2005-08-25 |
DE10200524C1 (de) | 2003-06-12 |
EP1327820A1 (de) | 2003-07-16 |
ATE300016T1 (de) | 2005-08-15 |
DE10200524C5 (de) | 2008-07-17 |
JP2003240211A (ja) | 2003-08-27 |
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