EP2359062A1 - Foyer ferme et procede de regulation - Google Patents
Foyer ferme et procede de regulationInfo
- Publication number
- EP2359062A1 EP2359062A1 EP09793485A EP09793485A EP2359062A1 EP 2359062 A1 EP2359062 A1 EP 2359062A1 EP 09793485 A EP09793485 A EP 09793485A EP 09793485 A EP09793485 A EP 09793485A EP 2359062 A1 EP2359062 A1 EP 2359062A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion
- air
- circulation device
- combustion chamber
- forced circulation
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims description 7
- 230000033228 biological regulation Effects 0.000 title description 3
- 238000002485 combustion reaction Methods 0.000 claims abstract description 116
- 239000007789 gas Substances 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 239000004449 solid propellant Substances 0.000 claims description 17
- 239000000567 combustion gas Substances 0.000 claims description 15
- 239000002737 fuel gas Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 description 14
- 239000000446 fuel Substances 0.000 description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- -1 pyrolysis products Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
- F23J13/025—Linings; Jackets; Casings composed of concentric elements, e.g. double walled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/08—Regulating air supply or draught by power-assisted systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2211/00—Flue gas duct systems
- F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
- F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/26—Measuring humidity
- F23N2225/30—Measuring humidity measuring lambda
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/02—Ventilators in stacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
- F23N2233/08—Ventilators at the air intake with variable speed
Definitions
- the present invention relates to a closed hearth with a system for supplying air and exhausting burnt gases.
- regenerative devices are known for recovering heat from combustion gases in order to preheat the combustion air and thus to improve the efficiency of the combustion system.
- suction tubes comprising a central channel for the evacuation of combustion gases and a peripheral channel for the supply of combustion air.
- Such suction tubes may optionally be provided with an insulation, as illustrated for example in the document EP 1369642, in order to limit heat losses.
- Such supply and extraction ducts can operate by simple convection. However, in this case, their effectiveness decreases with the length of the ducts, especially if they include bends. Thus, from a certain length, forced circulation means become necessary to ensure a satisfactory supply and evacuation.
- Document DE 3539311 discloses a heating device associated with a suction tube. Hot combustion gases are discharged via the central channel, while combustion air passes through the peripheral channel, in which this air is preheated before entering the combustion chamber. To activate the suction of the fumes and thus the admission of fresh air into the combustion chamber, the free end of the central channel is provided with an exhaust fan.
- CA 2260524 discloses a device for introducing a stream of fresh air from the bottom of a flue or chimney.
- the chimney comprises a jacketed pipe so as to define a central channel for discharging fumes and a peripheral channel for supplying preheated fresh air to the combustion chamber, as well as in the chimney.
- Fresh air is propelled into the chimney via a fan. This fan is a fan sucking the air to blow it into the chimney.
- Document EP 0 013 700 discloses a device for evacuating burnt gases and fresh air intake for gas-tight heaters comprising two concentric ducts, the inner duct being intended for evacuation of flue gases. , while the outer peripheral duct conducts fresh air to the heater.
- the inner duct is associated with a profiled exhaust hood and an exhaust fan.
- the admission of air into the combustion chamber is therefore always obtained by the suction of the combustion gases. This does not allow a precise adjustment of the volume of combustion air admitted, a setting which is advantageous for controlling the temperature and aspect of the combustion flame, as well as the amount of fuel burned.
- Closed hearth means hearths, stoves, inserts or cassettes, solid fuel or gas, having a combustion chamber substantially closed but not comprising a gas-liquid heat exchanger.
- heat of combustion is therefore mainly released by radiation and / or convection of air, and not by heat exchange with a liquid circuit.
- the flue gases are normally discharged at a temperature substantially higher than in a boiler.
- the device for supplying air and exhaust gas burned in US 4,262,608 thus has several disadvantages for use in a closed fireplace. Firstly, the high temperatures of the flue gas and the combustion air preheated by these flue gases in the suction tube could damage the fan, the extractor, and their actuating motor.
- German patent application DE 30 20 182 A1 discloses a system for supplying air and exhausting burnt gases, comprising an air supply circuit comprising a forced circulation device and a gas evacuation circuit. burned with said supply and discharge circuits in contact with one another common sections for exchanging heat between the air and the flue gases, and a forced circulation device of the air supply circuit upstream of the common heat exchanger section.
- this document does not disclose how the forced air circulation device is regulated. Now, the flow of air supplied by the air supply circuit will determine, with the fuel, the character of the combustion in the closed hearth.
- An object of the present invention is therefore to provide bright flames and safe combustion in a closed fireplace, even with air supply and exhaust gas discharge circuits of a certain length.
- a closed hearth comprises: a substantially closed combustion chamber, and a system for supplying air and exhausting burnt gases connected to this combustion chamber and comprising an air supply circuit comprising a forced circulation device, and a burnt gas evacuation circuit, said supply and evacuation circuits being in contact on one or more common sections downstream of the combustion device.
- forced circulation for exchanging heat between the air and the flue gases and said system for supplying air and exhausting flue gas also comprises a control unit of the forced circulation device connected to a flow sensor and configured to control an airflow such that the combustion factor ⁇ in the combustion chamber is not less than 1.5.
- Combustion factor ⁇ is the ratio of the mass flow rate of air to the mass flow rate of fuel, divided between the stoichiometric air / fuel ratio.
- the forced circulation device acts on the combustion air at a temperature closer to ambient temperature. In this way it is possible to ensure good reliability of the device without having to take expensive and expensive thermal protection or cooling measures. In addition, because of the higher density of this cooler air, the efficiency of the forced circulation device is higher. The regulation of the air flow is also facilitated. Finally, since the forced circulation device is upstream of at least a portion of the common heat exchanger section on the air supply circuit, it may be located at a greater distance from the insert insert type hearth. The apparent noise in the vicinity of the closed hearth can thus be reduced without recourse to the same complex and expensive soundproofing means.
- control device can for example in case of bad combustion (too much CO) control the forced circulation device to bring more air into the closed firebox.
- said at least a portion of a common heat exchanger section located downstream of the forced circulation device may have a length of at least two meters, preferably at least three meters. In this way it is ensured that the preheating of the combustion air is carried out mainly downstream of the forced circulation device.
- said common heat exchanger section may be a suction tube comprising a central channel for exhausting burnt gases and a peripheral channel for supplying combustion air.
- a suction tube comprising a central channel for exhausting burnt gases and a peripheral channel for supplying combustion air.
- said common heat exchanger section may alternatively have a different arrangement of the supply and discharge channels, for example a side-by-side arrangement.
- said forced circulation device may comprise at least one nozzle opening into said peripheral channel.
- said nozzle may be oblique with respect to said peripheral channel.
- it also imparts a helical movement to the combustion air, so as to increase the heat exchange between the flue gases in the central channel and combustion air in the peripheral channel.
- the forced circulation device may be at least partially integrated in said peripheral channel, so as to reduce the size of the system.
- the forced circulation device may comprise at least one fan, which allows a control of the flow rate by controlling the operating speed of the fan.
- this fan could be a centrifugal fan.
- the forced circulation device may comprise at least one ejector.
- This or these ejectors eject a small amount of air at high speed to blow or propel a larger amount of air.
- the efficiency of the forced circulation device can thus be improved.
- the air supply circuit and / or the exhaust gas evacuation circuit may comprise one or more ducts of circular section, but they may also be of different section, such as a square section, a rectangular section. , a hexagonal section, etc. according to the necessities.
- the closed hearth is a gas closed hearth, in which the combustion chamber comprises at least one gas burner connected to a fuel gas supply circuit with a flow regulator.
- the control unit of the forced circulation device can be configured to control a substantially constant air flow, and the flow regulator of the fuel gas supply circuit have a maximum flow rate such that the combustion factor ⁇ in the combustion chamber is not less than 1.5.
- the flow regulator of the fuel gas supply circuit could be connected to a user-actuable control to vary the flow of fuel gas supplied to the combustion chamber, of course on a continuous scale, although in a staggered manner, but always with a maximum not exceeding said maximum flow.
- the flow regulator of the fuel gas supply circuit also has a minimum flow rate with which the combustion factor with said constant air flow rate does not exceed 6. With a large excess of air , the flame can indeed become unstable or even be blown.
- the closed hearth is a solid fuel fireplace, with a combustion chamber configured to receive a solid fuel charge (eg, coal, coke, wood or pellets) and the control unit of the device forced circulation is configured to control a variable air flow as a function of the combustion time.
- a solid fuel eg, coal, coke, wood or pellets
- the control unit of the device forced circulation is configured to control a variable air flow as a function of the combustion time.
- the closed hearth further comprises a combustion gas temperature sensor connected to the control unit of the forced circulation device, said control unit of the forced circulation device being configured to control a variable air flow rate according to also the temperature sensed by said temperature sensor.
- a solid fuel closed hearth When a solid fuel closed hearth is loaded, it can receive varying amounts of solid fuel.
- the temperature sensor allows the control unit of the forced circulation device to take into account the amount of fuel received by the closed hearth with said solid fuel charge.
- the present invention also relates to a method of controlling a closed hearth, with a substantially closed combustion chamber, wherein the flow of air supplied to said combustion chamber by a forced circulation device is controlled so that that the combustion factor ⁇ in the combustion chamber is not less than 1.5.
- FIG. 1 is a schematic view of a closed hearth according to an embodiment of the invention, partially in section,
- FIG. 2 is a sectional view along the line II-II of FIG. 1;
- FIG. 3 is a perspective view of an oblique deflector in the form of a fin;
- FIG. 4 is a schematic view of a closed hearth according to another embodiment of the invention
- FIG. 5 is a diagrammatic view of a fan used in the installation of FIG. 5;
- FIG. 6 is a schematic view of a detail of a system for supplying air and exhausting burnt gases according to another embodiment of the invention.
- FIG. 7 is a diagrammatic view of a detail of an air supply and exhaust gas evacuation system according to yet another embodiment of the invention.
- FIG. 8 is a schematic view of a closed hearth according to yet another embodiment of the invention, partially in section, FIG. 9 shows several curves corresponding to examples of combustion profiles in the closed hearth of FIG. 8 with different fuel loads.
- Figure 1 shows a closed hearth type "cassette" comprising:
- a combustion chamber 1 substantially closed, said chamber 1 being in this embodiment surrounded by a casing 2 adapted to allow the passage of air 3 in the casing along one or outer walls of the combustion chamber 1 or in contact with the combustion chamber 1, and also comprising a gas burner 4A supplied by a fuel gas supply circuit 4 also comprising a flow regulator 4B connected to a user-actuatable control 50 for selecting, in the lit hearth, between three levels of fuel gas flow Q min , Q m oy, and Q m ax, said envelope 2 also having one or more openings 5 for the passage of air to the combustion chamber 1, a conduit 6 of the concentric suction tube type comprising two concentric ducts 6A, 6B, namely a central duct 6A connected to the combustion chamber 1 so as to serve to evacuate the smoke or combustion gas, and a duct outside 6B defining a peripheral channel 7 connected to the casing 2 for supplying combustion air to the combustion chamber 1, the top of the duct 6 being advantageously provided with a perforated cap 8 with inclined
- a fan 18 located in a portion of the channel 15 of the housing 14, said fan being rotated by a motor 19, said fan 18 being adapted to draw air from the upper portion 7A to blow in the lower portion 7B through the nozzle 17,
- a first series of oblique fin-shaped deflectors situated at a distance of approximately 10 to 30 cm downstream from the nozzle 17, said fins being arranged to induce a movement helical to the air circulating in the lower portion 7B or in a part thereof,
- the intermediate portion 7C of the channel 7 has an opening 21 located facing a door 22 closing an access window inside the inner duct 6, a plug 23 closing the opening 21, a control unit 24 adapted to control the fuel gas flow regulator 4B, as well as the rotation of the motor 19 and its rotational speed, said control unit 24 being connected by wired and / or wireless connection, for receiving signals from one or more flow sensors 25.
- Sensors other than the sensor of flow rate 25, such as temperature sensors, pressure sensors, speed sensors, and other actuators, such as valve actuators placed in the air supply, exhaust gas, or gas supply circuits. co may also be connected to the control unit 24.
- the control unit 24 may advantageously be integrated in the housing 14.
- the portions 7A, 7B of the peripheral channel 7 and the channel 15 thus form a combustion air supply circuit to the combustion chamber 1, while the channel or central duct 6A forms a combustion gas evacuation circuit. of the combustion chamber 1.
- the plates 10, 11 would only partially close the passage section of the peripheral channel so as to form an air passage between the portions 7A and 7B which is parallel to the channel 15 of the housing 14.
- Figure 2 is a top view of the series of fins 20. These fins extend between the inner conduit 6A and the outer conduit 6B. These fins are advantageously welded to said ducts and are advantageously made of a heat conductive material.
- the fins 20 are profiled to generate a substantially helical air movement in the peripheral channel.
- the peripheral channel 7 may also be devoid of fins, so that the air stream is not helical, but substantially parallel to the axis of the duct 6.
- the duct 6B may be provided with thermal insulation.
- FIG. 4 is a schematic view of an installation according to an embodiment of the invention which is similar to that shown in FIG. 1, except that the housing with fan has been replaced by a series of four small ones. fans 30, integrated in the peripheral channel
- FIG. 6 is a schematic view of a part of an installation according to another embodiment of the invention which is also similar to that shown in FIG. 1, except that the fan 18 is located at the top duct 6B, the combustion air entering the fan 18 via a single duct 31.
- FIG. 7 is a schematic view of part of an installation according to another embodiment of the invention which is also similar to the previous ones, except that the ducts 6A, 6B are not concentric, but placed side by side, the duct 6A thus serving to supply air, and the duct 6B to the evacuation of combustion gas.
- the combustion chamber 1 of the closed hearth of FIG. 1 is supplied with combustion air by the combustion air supply circuit formed by the portions 7A, 7B of the peripheral channel 7, the channel 15, and the fan 18 of the channel 15, and combustion air by the fuel gas supply circuit 4 via the flow regulator 4B and the burner 4A.
- An air / fuel mixture is thus formed in the combustion chamber 1 to be burned.
- the flue gases are then discharged through line 6A.
- the control 50 governs the flow regulator 4B of the fuel gas supply circuit
- the control unit 24 governs the rotational speed of the motor 19 of the fan 18 according to signals from the flow sensor 25, so as to maintain a substantially constant flow of air, and this independently of the resistance to the flow of air. air of the combustion air supply circuit.
- the control unit 24 is configured to control an air flow such that, even with the maximum gas flow rate Q max that can be selected by the user with the control 50, the combustion factor ⁇ remains at least equal to at 1.5.
- the closed hearth is a solid fuel hearth (coal, coke or wood).
- the combustion chamber 1 comprises a fuel tank 51 for receiving said solid fuel.
- this solid fuel fireplace also has a temperature sensor 52 connected to the control unit 24, and, for the air inlet into the combustion chamber 1, lateral openings 5a in addition to the lower openings 5.
- the supply of air through the lateral openings 5a is controlled by valves 53 connected to the control unit 24 and to close them for example at the beginning of the combustion, when the flames are not yet sufficiently developed so that the air brought by the lateral openings participates in the combustion.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2008/0627A BE1018339A3 (fr) | 2008-11-18 | 2008-11-18 | Systeme d'amenee d'air et evacuation de gaz brules. |
PCT/EP2009/065409 WO2010057929A1 (fr) | 2008-11-18 | 2009-11-18 | Foyer ferme et procede de regulation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2359062A1 true EP2359062A1 (fr) | 2011-08-24 |
Family
ID=41119547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09793485A Withdrawn EP2359062A1 (fr) | 2008-11-18 | 2009-11-18 | Foyer ferme et procede de regulation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2359062A1 (fr) |
BE (1) | BE1018339A3 (fr) |
WO (1) | WO2010057929A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2006270C2 (nl) | 2011-02-21 | 2012-08-22 | Dru Verwarming B V | Gesloten haardsysteem met geforceerde luchtstroom. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3020182A1 (de) * | 1980-05-28 | 1981-12-03 | Walter Dr.-Ing. 5100 Aachen Jürgens | Luftzufuhrsystem |
FR2552858B1 (fr) * | 1983-09-30 | 1988-08-26 | Gaz De France | Dispositif d'evacuation dans l'air ambiant des produits de combustion d'une chaudiere a condensation |
FR2666871A1 (fr) * | 1990-09-14 | 1992-03-20 | Larger | Installation de production de chaleur a partir d'un combustible brule dans une chaudiere reliee a la base d'une cheminee industrielle. |
DE4418014A1 (de) * | 1994-05-24 | 1995-11-30 | E E T Umwelt Und Gastechnik Gm | Verfahren zum Fördern und Vermischen eines ersten Fluids mit einem zweiten, unter Druck stehenden Fluid |
DE19853573A1 (de) * | 1998-11-20 | 2000-05-25 | Bosch Gmbh Robert | Heizgerät |
CH694380A5 (de) * | 2000-01-21 | 2004-12-15 | Spiess Ag Heizsysteme & Ofente | Ofen für feste Brennstoffe. |
ATE476628T1 (de) * | 2001-03-23 | 2010-08-15 | Gvp Ges Zur Vermarktung Der Po | Verfahren und vorrichtung zur einstellung der luftzahl |
DE10203798B4 (de) * | 2002-01-31 | 2009-08-13 | Robert Bosch Gmbh | Verfahren zur Anpassung eines brennerbeheizten Heizgerätes an ein diesem zugeordneten Luft-/Abgassystem |
-
2008
- 2008-11-18 BE BE2008/0627A patent/BE1018339A3/fr not_active IP Right Cessation
-
2009
- 2009-11-18 EP EP09793485A patent/EP2359062A1/fr not_active Withdrawn
- 2009-11-18 WO PCT/EP2009/065409 patent/WO2010057929A1/fr active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2010057929A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010057929A1 (fr) | 2010-05-27 |
BE1018339A3 (fr) | 2010-09-07 |
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