EP1378709A2 - Brenner für eine Fahrzeugheizung - Google Patents
Brenner für eine Fahrzeugheizung Download PDFInfo
- Publication number
- EP1378709A2 EP1378709A2 EP03004715A EP03004715A EP1378709A2 EP 1378709 A2 EP1378709 A2 EP 1378709A2 EP 03004715 A EP03004715 A EP 03004715A EP 03004715 A EP03004715 A EP 03004715A EP 1378709 A2 EP1378709 A2 EP 1378709A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure regulator
- pressure
- arrangement
- units
- 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.)
- Withdrawn
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
- F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
- F23D11/26—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed
- F23D11/30—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed with return feed of uncombusted sprayed fuel to reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/14—Details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/14—Details thereof
- F23K5/147—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/005—Regulating fuel supply using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/20—Membrane valves
Definitions
- the present invention relates to a burner system, in particular for a Vehicle heating, comprising a fuel atomizer arrangement for Feeding fuel into a combustion chamber, a fuel pump assembly for supplying fuel under pressure to the fuel atomizer arrangement and a pressure regulator arrangement for adjustment of the fuel pressure in one of the fuel pump arrangement Fuel atomizer arrangement leading fuel line region.
- Such generally referred to as atomizer burner systems Systems are used, for example, in vehicles as auxiliary heaters or as Auxiliary heater used.
- the fuel under pressure is generated by the Fuel atomizer arrangement, which has at least one atomizer nozzle can include, in atomized form, ie divided into smallest particles in fed into the combustion chamber and there together with the also in the Combustion chamber fed combustion air brought to combustion.
- the Amount of fuel to be burned and the amount of with this combustion air to be burned are dependent set by the required heating output.
- Rule for example comparatively low outside temperatures and should be below these Conditions to start a vehicle are both in the interior air present in the vehicle is comparatively cold, as well Drive unit or the cooling medium of the same.
- heating of these two system areas is said to be one Heating device then operated with a comparatively large heating power become. At higher outside temperatures or after sufficient heating of different system areas is such a high heating output not necessary anymore.
- a burner system in particular for a vehicle heater, comprising a fuel atomizer arrangement for feeding fuel into a combustion chamber, a fuel pump assembly for supplying pressurized Fuel for the fuel atomizer arrangement and a pressure regulator arrangement for setting the fuel pressure in one of the fuel pump arrangement fuel line area leading to the fuel atomizer arrangement, wherein the pressure regulator assembly a plurality of Has pressure regulator units and wherein to change the pressure control characteristic the pressure regulator arrangement at least part of the pressure regulator units can be activated or deactivated.
- the change in the Heating output of a burner system is not caused by changing the clocked operation or not just by changing the clocked Can be generated, but that actively and for example in Depending on the required heating output, a change in Pressure of the fuel led to the fuel atomizer arrangement can be.
- a lower fuel pressure has one accordingly lower feed volume result, which means at the same time with continuous continuous burner operation reduced the heating power provided becomes.
- an increased fuel pressure leads to a larger fuel feed quantity and thus a larger one provided heating power.
- the amount of fuel in the combustion chamber fed combustion air can be adjusted to the pollutant emissions so low with the combustion in the combustion chamber to be able to keep as possible.
- the change in pressure conditions and thus the Change in the fuel feed amount in the inventive Burner system can be varied in that at least two pressure regulator units mutually different pressure control characteristics exhibit. Furthermore, it is possible, for example, that at least two Pressure regulator units are effectively connected in parallel to each other and that a pressure connection between at least one of the pressure regulator units and the fuel line area is interruptible.
- At least one of the Pressure regulator units is designed depending on the in Prevailing pressure line connection between the fuel line area and a fuel discharge area to change.
- the present invention can be provided in the burner system that at least one of the pressure regulator units against the action of a Reset arrangement according to the fuel pressure in the fuel line area has displaceable pressure regulator member, whereby by displacement of the pressure regulator element has a fuel discharge throttle effect Pressure regulator unit is changeable. This can be achieved, for example be that by moving the pressure regulator organ an effective Flow cross section of a fuel discharge opening arrangement of the pressure regulator unit is changeable.
- a pressure regulator unit that can be used in a burner system according to the invention can be constructed, for example, in such a way that the pressure regulator element a piston element comprises that the return arrangement a biasing spring comprises, against the action of force by the piston element
- Fuel pressurization in a cylinder element Work space is relocatable, the work space via a fuel inlet opening arrangement in connection with the fuel line area stands or can be brought in and through a through the piston element At least depending on its positioning in the cylinder element partially closable fuel discharge opening arrangement in connection stands with a fuel discharge area or can be brought.
- the reset characteristic of Reset arrangement of at least one of the pressure regulator units changeable is.
- the burner system 10 includes a conduit section 12 extending from a fuel reservoir 14 leads to a fuel pump 16. Introduces from the fuel pump 16 Fuel line area 18 to an atomizer nozzle 20, via which the Fuel in the form of an indicated fuel mist 22 in a not shown Combustion chamber is fed.
- the amount of fed in Fuel depends, among other things, on the one prevailing in the line area 18 Fuel pressure so that as described below by changing the fuel pressure prevailing in the line area 18 in a simple way influence in the combustion chamber amount of fuel fed can be taken.
- Solenoid actuated valve assembly 24 can supply fuel to the atomizer nozzle 20 are interrupted. It was on it noted that of course the fuel feed over several atomizer nozzles 20 connected in parallel can take place.
- the burner system 10 shown in the figure also includes a general designated with 26 pressure regulator assembly.
- This in turn points two pressure regulator units, in principle, but not necessarily of the same design 28, 30 on.
- the pressure regulator unit 30 is connected via a branch line 32 in connection with the line area 18.
- Another Branch line 34 leads from branch line 32 to the pressure regulator unit 28, so that this pressure regulator unit also via the branch lines 34, 32 28 is in connection with the line area 18 or can be brought is.
- a valve arrangement that can also be actuated magnetically, for example 36 is provided in the branch line 34, so that by actuation this valve arrangement 36 the connection of the pressure regulator unit 28 with the branch line 32 and thus the line area 18 optionally can be interrupted or produced.
- the branch line 34 also directly into the line area 18 could end up.
- the pressure regulator unit 30 comprises a cylinder housing 38, in which a cylindrical working space 40 is formed.
- a Piston element 42 forming pressure regulator member is slidably received.
- the piston element 42 can by a O-ring-like sealing element or the like to be sealed.
- an abutment element 44 On an abutment element 44 is, for example, a helical compression spring trained bias spring 46 supported, which is different is supported on the piston element 42.
- the bias spring 46 that is Piston element 42 in the direction of a floor area 48 of the work space 40 too biased.
- the branch line opens into this floor area 48 32 in the area of a fuel inlet opening 50. So it stands there Working space 40 in pressure connection with the line area 18, which for As a result, the piston element 42 counteracts the biasing action of the Preload spring 46 by the prevailing in the branch line 32 Pressure is applied, which essentially also with that in the Line area 18 prevails pressure. It will thus caused by the two acting on the piston element 42 Forces depending on the fuel pressure prevailing in the line area 18 an equilibrium position of the piston element 42 in the cylinder housing 38 to adjust.
- a fuel discharge area 54 is in via a discharge opening 52 Connection to the work space 40.
- the fuel discharge area 54 leads to the fuel reservoir 14
- the fuel pump 16 which for example is operated so that it with a predetermined, for example maximum Delivery works, fuel is fed into the line area 18. Since the atomizer nozzle 20 forms a significant throttling effect, the Line area 18 and thus also in the branch line 32 set certain fuel pressure. This acts on the previous one described line connection against the piston element 42 the biasing action of the biasing spring 46. The force is applied the biasing spring 46, for example, set such that at fuel pressure below a certain threshold Line area 18, the piston element 42 closes the discharge opening 52, for example, completes completely. It is then the line connection between the branch line 32 and the fuel discharge region 34 except for a possibly existing bypass line 56, which one permanent drain allows, interrupted.
- the pressure regulator unit 28 to the pressure regulator unit 30 can be connected in parallel. It can also be provided be that the two pressure regulator units 28, 30 are different from one another Have pressure control characteristics. For example, can be provided be that the biasing spring 46 of the pressure regulator unit 28 is less Provides preload so that a low fuel pressure is sufficient to move the piston element 42 of the pressure regulator unit 28 in such a way that fuel via the fuel discharge opening 52 of the pressure regulator unit 28 can flow back into the fuel reservoir 14.
- valve assembly 36 is set such that the pressure connection between the pressure regulator arrangement 28 and the line area 18 is interrupted.
- the fuel pressure will therefore vary according to the pressure control characteristic the pressure regulator unit 30 at a higher level to adjust. If such a high burner output is no longer required, becomes a connection between actuating the valve assembly 36 the working space 40 of the pressure regulator unit 28 and the line area 18 manufactured.
- the two working spaces 40 of the pressure regulator units 28, 30 are therefore parallel in terms of effectiveness.
- the control of the valve unit 36 and possibly also the control of the Motors for the combustion air blower can be operated via a control unit in which temperature values act as thresholds for switching on and off the pressure regulator unit 28 are stored, which then with temperature values be compared, delivered by temperature sensors become. These sensors in turn can measure temperature, for example of the medium to be heated, for example in a water cycle to capture.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims (9)
- Brennersystem, insbesondere für eine Fahrzeugheizung, umfassend eine Brennstoffzerstäuberanordnung (20) zum Einspeisen von Brennstoff in eine Brennkammer, eine Brennstoffpumpanordnung (16) zur Zufuhr von unter Druck stehendem Brennstoff zur Brennstoffzerstäuberanordnung (20) sowie eine Druckregleranordnung (26) zur Einstellung des Brennstoffdrucks in einem von der Brennstoffpumpanordnung (16) zur Brennstoffzerstäuberanordnung (20) führenden Brennstoffleitungsbereich (18), wobei die Druckregleranordnung (26) eine Mehrzahl von Druckreglereinheiten (28, 30) aufweist und wobei zur Veränderung der Druckregelcharakteristik der Druckregleranordnung (26) wenigstens ein Teil (28) der Druckreglereinheiten (28, 30) aktivierbar beziehungsweise deaktivierbar ist.
- Brennstoffsystem nach Anspruch 1,
dadurch gekennzeichnet, dass wenigstens zwei Druckreglereinheiten (28, 30) zueinander unterschiedliche Druckregelcharakteristiken aufweisen. - Brennstoffsystem nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass wenigstens zwei Druckreglereinheiten (28, 30) wirkmäßig zueinander parallel geschaltet sind und dass eine Druckverbindung zwischen wenigstens einer (28) der Druckreglereinheiten (28, 30) und dem Brennstoffleitungsbereich (18) unterbrechbar ist. - Brennstoffsystem nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass wenigstens eine der Druckreglereinheiten (28, 30) dazu ausgebildet ist, in Abhängigkeit von dem im Brennstoffleitungsbereich (18) vorherrschendem Druck eine Verbindung zwischen dem Brennstoffleitungsbereich (18) und einem Brennstoffableitungsbereich (54) zu verändern. - Brennstoffsystem nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass wenigstens eine der Druckreglereinheiten (28, 30) ein gegen die Wirkung einer Rückstellanordnung (46) entsprechend dem Brennstoffdruck im Brennstoffleitungsbereich (18) verlagerbares Druckreglerorgan (42) aufweist, wobei durch Verlagerung des Druckreglerorgans (42) eine Brennstoffableitdrosselwirkung der Druckreglereinheit (28, 30) veränderbar ist. - Brennstoffsystem nach Anspruch 5,
dadurch gekennzeichnet, dass durch Verlagerung des Druckreglerorgans (42) ein effektiver Strömungsquerschnitt einer Brennstoffableitöffnungsanordnung (52) der Druckreglereinheit (28, 30) veränderbar ist. - Brennstoffsystem nach Anspruch 5 oder 6,
dadurch gekennzeichnet, dass das Druckreglerorgan (42) ein Kolbenelement (42) umfasst, dass die Rückstellanordnung (46) eine Vorspannfeder (46) umfasst, gegen deren Kraftwirkung das Kolbenelement (42) durch Brennstoffdruckbeaufschlagung in einem in einem Zylinderelement (38) gebildeten Arbeitsraum (40) verlagerbar ist, wobei der Arbeitsraum (40) über eine Brennstoffeinleitöffnungsanordnung (50) in Verbindung mit dem Brennstoffleitungsbereich (18) steht oder bringbar ist und über eine durch das Kolbenelement (42) in Abhängigkeit von seiner Positionierung im Zylinderelement (38) wenigstens teilweise verschließbare Brennstoffableitöffnungsanordnung (52) in Verbindung mit einem Brennstoffableitungsbereich (54) steht oder bringbar ist. - Brennstoffsystem nach einem der Ansprüche 5 bis 7,
dadurch gekennzeichnet, dass die Rückstellcharakteristik der Rückstellanordnung (46) von wenigstens einer der Druckreglereinheiten (28, 30) veränderbar ist. - Brennstoffsystem nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass wenigstens eine der Druckreglereinheiten (28, 30) durch Betätigung einer Ventilanordnung (36) aktivierbar beziehungsweise deaktivierbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10229439 | 2002-07-01 | ||
DE10229439 | 2002-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1378709A2 true EP1378709A2 (de) | 2004-01-07 |
EP1378709A3 EP1378709A3 (de) | 2004-07-14 |
Family
ID=29719419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03004715A Withdrawn EP1378709A3 (de) | 2002-07-01 | 2003-03-04 | Brenner für eine Fahrzeugheizung |
Country Status (2)
Country | Link |
---|---|
US (1) | US20040000595A1 (de) |
EP (1) | EP1378709A3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3126748A4 (de) * | 2014-03-07 | 2017-12-27 | Lau, James H. | Heizsystem |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1684014A1 (de) | 2004-12-01 | 2006-07-26 | Riello S.p.a. | Verfahren zur Steuerung eines mit flüssigen Brennstoff betriebenen Verbrennungssystems |
DE102012110103A1 (de) * | 2012-10-23 | 2014-04-24 | Spheros Gmbh | Mit flüssigem Brennstoff betriebene Heizeinrichtung |
US9488373B2 (en) | 2014-03-06 | 2016-11-08 | Progreen Labs, Llc | Treatment device of a heating system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2403083A1 (de) * | 1974-01-23 | 1975-07-31 | Ennking Heinz Dr Rer Nat | Verfahren und vorrichtung zum kontinuierlichen betrieb von feuerungsanlagen mit beliebigem fluessigem oder gasfoermigem brennstoff |
DE3303915A1 (de) * | 1983-02-05 | 1984-08-16 | Danfoss A/S, Nordborg | Regelvorrichtung fuer einen oelbrenner |
DE4329955A1 (de) * | 1993-09-04 | 1995-03-09 | Danfoss As | Pumpenanordnung für einen Ölbrenner und Verfahren zur Kapazitätsregelung dieses Ölbrenners |
US6164554A (en) * | 1996-11-02 | 2000-12-26 | J. Eberspacher Gmbh & Co. | Pressure atomizing type burner for an engine independent heating system in a vehicle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4141367C1 (de) * | 1991-12-14 | 1993-03-11 | Fa. J. Eberspaecher, 7300 Esslingen, De | |
DE4207884C1 (de) * | 1992-03-12 | 1993-04-01 | Webasto Thermosysteme Gmbh, 8035 Stockdorf, De | |
DE19724502C1 (de) * | 1997-06-11 | 1998-10-08 | Webasto Thermosysteme Gmbh | Heizgerät |
-
2003
- 2003-03-04 EP EP03004715A patent/EP1378709A3/de not_active Withdrawn
- 2003-04-21 US US10/419,662 patent/US20040000595A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2403083A1 (de) * | 1974-01-23 | 1975-07-31 | Ennking Heinz Dr Rer Nat | Verfahren und vorrichtung zum kontinuierlichen betrieb von feuerungsanlagen mit beliebigem fluessigem oder gasfoermigem brennstoff |
DE3303915A1 (de) * | 1983-02-05 | 1984-08-16 | Danfoss A/S, Nordborg | Regelvorrichtung fuer einen oelbrenner |
DE4329955A1 (de) * | 1993-09-04 | 1995-03-09 | Danfoss As | Pumpenanordnung für einen Ölbrenner und Verfahren zur Kapazitätsregelung dieses Ölbrenners |
US6164554A (en) * | 1996-11-02 | 2000-12-26 | J. Eberspacher Gmbh & Co. | Pressure atomizing type burner for an engine independent heating system in a vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3126748A4 (de) * | 2014-03-07 | 2017-12-27 | Lau, James H. | Heizsystem |
Also Published As
Publication number | Publication date |
---|---|
EP1378709A3 (de) | 2004-07-14 |
US20040000595A1 (en) | 2004-01-01 |
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