EP1256760A1 - Assembly of a burner and a burner housing - Google Patents
Assembly of a burner and a burner housing Download PDFInfo
- Publication number
- EP1256760A1 EP1256760A1 EP02076856A EP02076856A EP1256760A1 EP 1256760 A1 EP1256760 A1 EP 1256760A1 EP 02076856 A EP02076856 A EP 02076856A EP 02076856 A EP02076856 A EP 02076856A EP 1256760 A1 EP1256760 A1 EP 1256760A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- deck
- cap
- assembly according
- housing
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/101—Flame diffusing means characterised by surface shape
- F23D2203/1017—Flame diffusing means characterised by surface shape curved
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2211/00—Thermal dilatation prevention or compensation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2213/00—Burner manufacture specifications
Definitions
- the present invention relates to an assembly of a burner and a burner housing.
- the burner housing comprises a heat exchanger and a burner cap; in the known assembly, the burner comprises a burner deck and a frame.
- the frame in which the burner deck is mounted is arranged on the burner cap of the known assembly the burner cap of the known assembly.
- This burner deck is connected with the frame, for instance by means of spot welding.
- the burner deck is located opposite the heat exchanger to ensure an optimum heat transfer. In fact, the combustion of combustible gases takes place on a side of the burner deck facing the heat exchanger.
- the burner housing is usually manufactured from a material having a coefficient of thermal expansion that is relatively low with respect to the material of the burner, while, moreover, the wall thickness thereof substantially exceeds that of the burner deck.
- Both the burner cap and the burner deck are often manufactured from plate-shaped metal. This plate-shaped metal usually has a relatively high coefficient of thermal expansion.
- the burner deck is provided with perforations through which, in use, gases to be burned, premixed via the burner cap, flow into the combustion space. Moreover, this burner deck expands relatively more than the burner housing and the burner cap because the burner deck is exposed to a higher temperature than the temperature to which the burner housing is exposed. In particular the burner cap is practically not heated.
- the difference in expansion between the burner deck and the burner cap will even be greater if the burner cap is made as a casting because the cast material has a lower coefficient of expansion than the plate material from which the burner deck is manufactured.
- the burner cap may, for that matter, be a part of the burner housing that is fixedly cast integral therewith, but may also be made as a separate casting.
- the difference in expansion is counteracted by the frame manufactured from plate material.
- the burner deck is subject to heavy wear.
- the frame between the burner cap and the burner deck may be subject to wear. If necessary, replacement of the burner deck is possible without necessarily requiring replacement of the whole assembly.
- the burner deck and the frame are mountable in the burner housing and are therefore also demountable for the purpose of, for instance, inspection and replacement.
- a drawback of such an assembly is that in mounting at least a burner deck and a frame have to be arranged in the burner housing, which involves working hours and therefore labor costs. Such a drawback also prevails if the burner deck and/or the frame have to be replaced.
- An assembly according to the invention is therefore characterized by the features of claim 1.
- an assembly according to the invention is further characterized by the features of claim 2.
- the burner deck can be very rapidly mounted in the burner housing. This saves labor costs. Moreover, the preselected deformation occurring, in use, under the influence of the combustion space is limited only in the positions where the at least one dowel pin is arranged, as a result of the fixation on the burner cap.
- the or each dowel pin is preferably provided near a longitudinal edge of the burner or, in a mounted assembly, is included in a part enclosed between the burner cap and the heat exchanger in a position where only little deformation occurs.
- an assembly according to the invention is characterized by the features of claim 3.
- the burner deck can be fastened on the burner cap even more rapidly and simply since no dowel pin needs to be provided. This saves working hours and labor costs in mounting and replacement. Moreover, the burner deck therefore has more space for deformation. Besides, it is observed that the burner deck can also be mounted on the heat exchanger. When using a heat exchanger manufactured from a casting, the dowel pins can be cast integral therewith, in that case.
- an assembly according to the invention is further characterized by the features of claim 4.
- an assembly according to the invention is further characterized by the features of claim 5.
- an assembly according to the invention is further characterized by the features of claim 6.
- an assembly according to the invention is further characterized by the features of claim 7.
- the invention also relates to a burner housing intended for use in an assembly of a burner and a burner housing.
- the invention also relates to a burner deck intended for use in an assembly of a burner and a burner housing.
- Fig. 1 shows a burner housing 1 comprising a heat exchanger 2 and a burner cap 3.
- a burner deck 4 Located between the burner cap 3 and the heat exchanger 2 is a burner deck 4.
- the burner deck 4 may be fixed on the burner cap 3, for instance with at least one dowel pin (not shown) to be placed in a position 5. However, the burner deck 4 may also be clamped on the burner cap 3 with, for instance, a longitudinal edge (not shown). Between the burner deck 4 and the burner cap 3 a packing 7 is preferably arranged.
- the burner deck 4 is provided with perforations (not shown) through which the gases to be burned flow from the burner cap into the combustion space 6. In use, the combustion takes place directly on the side of the burner deck 4 facing the heat exchanger 2.
- the burner deck 4 is preformed such that, in use, it further deforms according to a preselected deformation under the influence of the combustion heat.
- the burner deck will expand, in use, in the direction of the heat exchanger 2.
- the surface 10 of the heat exchanger 2 against which the burner deck 4 lies is oriented substantially parallel to the side 11 of the burner deck 4 facing away from the burner cap 3. In the example shown, this side 11 facing away from the burner cap 3 is substantially convex.
- a side 14 of the burner deck 4 facing the burner cap 3 is concave.
- a side 12 of the burner cap 3 contacting the burner deck 4 is oriented substantially parallel to the side 14 of the burner deck 4 facing the burner cap 3.
- the burner deck 4 is preferably provided with a protective, in particular an insulating top layer 13.
- This top layer 13 comprises a heat-sensitive material to increase the life of the burner deck 4.
- the material often also has a relatively low coefficient of heat conduction, so that, in use, relatively little produced heat can be lost as a result of heat delivery to the burner deck 4.
- the burner housing 1 comprises the heat exchanger 2 and the burner cap 3.
- the burner cap 3 may be arranged separately in the burner housing 1.
- the burner housing is made as a casting. It will be clear that in that case the manufacture of an assembly 1 comprises the following steps: a) the manufacture of a burner housing, by means of one or more casting processes, comprising at least a heat exchanger 2 and a burner cap 3; and b) the mounting of a burner deck 4 in the burner housing.
- the burner cap 3 is provided with at least two spatially separated dowel pins designed as hooks 8A, 8B, which are arranged to position the burner deck 4 on the burner cap 3 by means of openings 9A, 9B provided in the burner deck 4.
- the burner deck 4 is therefore placed on the burner cap 3 such that the hook 8A extends through the opening 9A and the hook 8B extends through the opening 9B.
- the preformed burner deck is straightened a little so that the opening 9A fits around the top 21A of the hook 8A and the opening 9B fits around the top 21B of the hook 8B.
- the hooks 8A, 8B are preferably cast integral with a burner cap 3 made as a casting.
- the manufacture of an assembly 1 comprises the following steps: a) the manufacture of a burner housing 1 by means of one or more casting processes, which comprises at least a heat exchanger 2 and a burner cap 3; and b) the mounting of a burner deck 4 in the burner housing on the burner cap 3.
- the burner deck 4 may also be slid into a previously provided slot in the burner cap 3.
- the burner deck 4 may be clamped on the burner cap 3.
- the direction of this clamping may be both in the plane of the burner deck 4 and perpendicular to the plane of the burner deck 4.
- the ends of the burner deck 4 are clampingly bent around at least an outwardly extending lip on the burner cap 3.
- the packing 7 may be provided on the burner deck 4 already during the manufacture of the burner deck 4.
- the mounting method may be extended by all kinds of steps, including, for instance, the arrangement of a packing 7.
- the heat exchanger 2 may, for that matter, also be manufactured according to a method in which no use is made of a casting.
- a heat exchanger 2 may, for instance, also be manufactured from plate material.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
- The present invention relates to an assembly of a burner and a burner housing.
- Such an assembly is known per se.
- In a known assembly of a burner and a burner housing, the burner housing comprises a heat exchanger and a burner cap; in the known assembly, the burner comprises a burner deck and a frame. In mounting, the frame in which the burner deck is mounted is arranged on the burner cap of the known assembly the burner cap of the known assembly. This burner deck is connected with the frame, for instance by means of spot welding. After mounting of the frame with the burner cap in the burner housing, the burner deck is located opposite the heat exchanger to ensure an optimum heat transfer. In fact, the combustion of combustible gases takes place on a side of the burner deck facing the heat exchanger. The burner housing is usually manufactured from a material having a coefficient of thermal expansion that is relatively low with respect to the material of the burner, while, moreover, the wall thickness thereof substantially exceeds that of the burner deck. Both the burner cap and the burner deck are often manufactured from plate-shaped metal. This plate-shaped metal usually has a relatively high coefficient of thermal expansion. The burner deck is provided with perforations through which, in use, gases to be burned, premixed via the burner cap, flow into the combustion space. Moreover, this burner deck expands relatively more than the burner housing and the burner cap because the burner deck is exposed to a higher temperature than the temperature to which the burner housing is exposed. In particular the burner cap is practically not heated. The difference in expansion between the burner deck and the burner cap will even be greater if the burner cap is made as a casting because the cast material has a lower coefficient of expansion than the plate material from which the burner deck is manufactured. In such a case, the burner cap may, for that matter, be a part of the burner housing that is fixedly cast integral therewith, but may also be made as a separate casting. The difference in expansion is counteracted by the frame manufactured from plate material. As a result of the very high service temperatures, the burner deck is subject to heavy wear. Also, the frame between the burner cap and the burner deck may be subject to wear. If necessary, replacement of the burner deck is possible without necessarily requiring replacement of the whole assembly. In fact, the burner deck and the frame are mountable in the burner housing and are therefore also demountable for the purpose of, for instance, inspection and replacement.
- A drawback of such an assembly is that in mounting at least a burner deck and a frame have to be arranged in the burner housing, which involves working hours and therefore labor costs. Such a drawback also prevails if the burner deck and/or the frame have to be replaced.
- Another drawback is that the frame occupies space that cannot be used for combustion.
- It is an object of the invention to meet the above drawbacks. An assembly according to the invention is therefore characterized by the features of claim 1.
- This has the advantage that in mounting, instead of arranging a frame and a burner deck, only the burner deck needs to be arranged. This saves working hours and labor costs. Moreover, it is no longer necessary to produce a frame so that this saves material and production costs. A further advantage is that the dimensions and the design of the burner deck can be largely adjusted to an optimum utilization of the combustion space. With the preformation, the direction of the expansion is predetermined, and buckling is prevented. The burner deck can be placed relatively loose and can be simply enclosed between the burner cap and the heat exchanger.
- In an advantageous embodiment, an assembly according to the invention is further characterized by the features of
claim 2. - This has the advantage that the burner deck can be very rapidly mounted in the burner housing. This saves labor costs. Moreover, the preselected deformation occurring, in use, under the influence of the combustion space is limited only in the positions where the at least one dowel pin is arranged, as a result of the fixation on the burner cap. The or each dowel pin is preferably provided near a longitudinal edge of the burner or, in a mounted assembly, is included in a part enclosed between the burner cap and the heat exchanger in a position where only little deformation occurs.
- In an alternative embodiment, an assembly according to the invention is characterized by the features of
claim 3. - This has the advantage that the burner deck can be fastened on the burner cap even more rapidly and simply since no dowel pin needs to be provided. This saves working hours and labor costs in mounting and replacement. Moreover, the burner deck therefore has more space for deformation. Besides, it is observed that the burner deck can also be mounted on the heat exchanger. When using a heat exchanger manufactured from a casting, the dowel pins can be cast integral therewith, in that case.
- In an even more advantageous embodiment, an assembly according to the invention is further characterized by the features of
claim 4. - This has the advantage that, in use, the heat transfer can take place optimally.
- In a very advantageous embodiment, an assembly according to the invention is further characterized by the features of
claim 5. - This has the advantage that the burner deck can closely contact the burner cap without requiring the arrangement of deformations, such as recesses or flanged rims, in the burner deck.
- In a further very advantageous embodiment, an assembly according to the invention is further characterized by the features of
claim 6. - This has the advantage that a possible slit available before use between the burner deck and the burner cap, or a slit formed during use as a result of the unequal expansion of the burner deck and the burner cap, can be sealed by the packing.
- In an advantageous embodiment, an assembly according to the invention is further characterized by the features of
claim 7. - This has the advantage that the burner deck, in use, expands under the influence of the combustion heat in the direction of the heat exchanger, which, in use, results in an optimum heat transfer.
- The invention also relates to a burner housing intended for use in an assembly of a burner and a burner housing.
- The invention also relates to a burner deck intended for use in an assembly of a burner and a burner housing.
- The invention is further explained with reference to a drawing, in which:
- Fig. 1 is a section of a first embodiment of the assembly according to the invention;
- Fig. 2 is a section of a second embodiment of the assembly according to the invention.
-
- Fig. 1 shows a burner housing 1 comprising a
heat exchanger 2 and aburner cap 3. Located between theburner cap 3 and theheat exchanger 2 is aburner deck 4. Theburner deck 4 may be fixed on theburner cap 3, for instance with at least one dowel pin (not shown) to be placed in aposition 5. However, theburner deck 4 may also be clamped on theburner cap 3 with, for instance, a longitudinal edge (not shown). Between theburner deck 4 and the burner cap 3 apacking 7 is preferably arranged. Theburner deck 4 is provided with perforations (not shown) through which the gases to be burned flow from the burner cap into thecombustion space 6. In use, the combustion takes place directly on the side of theburner deck 4 facing theheat exchanger 2. Theburner deck 4 is preformed such that, in use, it further deforms according to a preselected deformation under the influence of the combustion heat. In the embodiments shown in Figs. 1 and 2, the burner deck will expand, in use, in the direction of theheat exchanger 2. Thesurface 10 of theheat exchanger 2 against which theburner deck 4 lies is oriented substantially parallel to theside 11 of theburner deck 4 facing away from theburner cap 3. In the example shown, thisside 11 facing away from theburner cap 3 is substantially convex. A side 14 of theburner deck 4 facing theburner cap 3 is concave. Aside 12 of theburner cap 3 contacting theburner deck 4 is oriented substantially parallel to the side 14 of theburner deck 4 facing theburner cap 3. Theburner deck 4 is preferably provided with a protective, in particular an insulating top layer 13. This top layer 13 comprises a heat-sensitive material to increase the life of theburner deck 4. The material often also has a relatively low coefficient of heat conduction, so that, in use, relatively little produced heat can be lost as a result of heat delivery to theburner deck 4. - As stated, the burner housing 1 comprises the
heat exchanger 2 and theburner cap 3. Theburner cap 3 may be arranged separately in the burner housing 1. In a special embodiment not shown, the burner housing is made as a casting. It will be clear that in that case the manufacture of an assembly 1 comprises the following steps: a) the manufacture of a burner housing, by means of one or more casting processes, comprising at least aheat exchanger 2 and aburner cap 3; and b) the mounting of aburner deck 4 in the burner housing. - An alternative embodiment is shown in Fig. 2. In this case, the
burner cap 3 is provided with at least two spatially separated dowel pins designed ashooks burner deck 4 on theburner cap 3 by means ofopenings burner deck 4. In mounting, theburner deck 4 is therefore placed on theburner cap 3 such that thehook 8A extends through theopening 9A and thehook 8B extends through theopening 9B. In use, the preformed burner deck is straightened a little so that theopening 9A fits around the top 21A of thehook 8A and theopening 9B fits around the top 21B of thehook 8B. When theburner deck 4 is bent back into the preformed position, theopening 9A will better contact the part of thehook 8A located near theburner deck 4, and theopening 9B will better contact the part of thehook 8B located near theburner deck 4. Moreover, theburner deck 4 is thus clamped on the burner cap. Thehooks burner cap 3 made as a casting. - As stated before, in such an assembly 1, in use, the gas to be burned is premixed with air before it flows into the
combustion space 6 through the perforations (not shown) in theburner deck 4. These perforations (not shown), too, could be used to fix theburner deck 4 to the burner cap by means of thehooks heat exchanger 2 and aburner cap 3; and b) the mounting of aburner deck 4 in the burner housing on theburner cap 3. - The invention is by no means limited to the exemplary embodiments shown. Thus, the
burner deck 4 may also be slid into a previously provided slot in theburner cap 3. Here, too, theburner deck 4 may be clamped on theburner cap 3. The direction of this clamping may be both in the plane of theburner deck 4 and perpendicular to the plane of theburner deck 4. It is also possible that the ends of theburner deck 4 are clampingly bent around at least an outwardly extending lip on theburner cap 3. To ensure a still more rapid mounting, thepacking 7 may be provided on theburner deck 4 already during the manufacture of theburner deck 4. The mounting method may be extended by all kinds of steps, including, for instance, the arrangement of apacking 7. Theheat exchanger 2 may, for that matter, also be manufactured according to a method in which no use is made of a casting. Aheat exchanger 2 may, for instance, also be manufactured from plate material. - Such variants are all considered to fall within the scope of the invention.
Claims (13)
- An assembly of a burner and a burner housing, in which the burner housing comprises a heat exchanger and a burner cap and the burner comprises at least a burner deck, the burner deck being mountable in the burner housing such that the burner deck, after mounting, is located substantially between the burner cap and the heat exchanger, the burner deck being manufactured substantially from a perforated plate, which plate is preformed such that, in use, it deforms according to a preselected deformation under the influence of the combustion heat, the burner deck being enclosed within the burner housing.
- An assembly according to claim 1, in which the burner deck is fixed on the burner cap by means of at least one dowel pin.
- An assembly according to claim 1 or 2, in which the burner cap is provided with at least two spatially separated dowel pins designed as hooks, which are arranged to extend through openings provided in the burner deck, for fixation of the burner deck on the burner cap.
- An assembly according to any one of the preceding claims, in which the heat exchanger comprises a heat-exchanging surface located opposite the burner deck, which surface is oriented substantially parallel to the side of the burner deck facing away from the burner cap.
- An assembly according to any one of the preceding claims, in which a side of the burner cap contacting the burner deck is oriented substantially parallel to the side of the burner deck facing the burner cap.
- An assembly according to any one of the preceding claims, in which between the burner deck and the burner cap and/or between the burner deck and the heat exchanger a packing can be arranged.
- An assembly according to any one of the preceding claims, in which the burner deck is substantially convex, in particular double-bent, on a side facing away from the burner cap.
- An assembly according to any one of the preceding claims, in which the burner deck is substantially concave on a side facing the burner cap.
- An assembly according to any one of the preceding claims, in which the burner deck is provided with a protective, in particular an insulating top layer.
- An assembly according to any one of the preceding claims, in which the burner housing is at least partly, preferably largely, and in particular entirely made as a casting.
- A burner housing intended for use in an assembly according to any one of the preceding claims, in which the burner housing comprises a heat exchanger and a burner cap.
- A burner deck intended for use in an assembly according to any one of claims 1-10, in which the burner deck is manufactured substantially from a perforated plate, which plate is preformed such that, in use, it deforms according to a preselected deformation under the influence of the combustion heat.
- A method for manufacturing an assembly according to claim 10, in which the method comprises at least the following steps: a) the manufacture of a burner housing according to claim 11 by means of one or more casting processes; b) the mounting of a burner according to claim 12 on the burner cap in the burner housing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1018054A NL1018054C2 (en) | 2001-05-11 | 2001-05-11 | Assembly of a burner and a burner housing. |
NL1018054 | 2001-05-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1256760A1 true EP1256760A1 (en) | 2002-11-13 |
EP1256760B1 EP1256760B1 (en) | 2007-08-29 |
Family
ID=19773391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02076856A Expired - Lifetime EP1256760B1 (en) | 2001-05-11 | 2002-05-10 | Assembly of a burner and a burner housing |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1256760B1 (en) |
AT (1) | ATE371835T1 (en) |
DE (1) | DE60222048T2 (en) |
ES (1) | ES2290245T3 (en) |
NL (1) | NL1018054C2 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0314897A1 (en) * | 1987-10-31 | 1989-05-10 | Ruhrgas Aktiengesellschaft | Excess-air premix gas burner for gas heating devices |
EP0730127A1 (en) * | 1995-02-28 | 1996-09-04 | Dejatech B.V. | Heat exchanger having a universal combustion chamber and condensate discharge |
EP0774623A1 (en) * | 1995-11-17 | 1997-05-21 | Dejatech B.V. | Burner with segmented burner deck |
NL1002251C1 (en) * | 1996-02-05 | 1997-08-06 | Dejatech Bv | Tilting, non-condensing heating boiler |
DE19724806A1 (en) * | 1996-06-11 | 1997-12-18 | Vaillant Joh Gmbh & Co | Full pre-mixed atmospheric radiant burner |
EP0816758A1 (en) * | 1996-06-10 | 1998-01-07 | N.V. Radson-Alutherm | Flame distributing device intended for a burner of a hot water appliance |
EP0915293A2 (en) * | 1997-11-06 | 1999-05-12 | Robert Bosch Gmbh | Forced draught burner |
-
2001
- 2001-05-11 NL NL1018054A patent/NL1018054C2/en not_active IP Right Cessation
-
2002
- 2002-05-10 ES ES02076856T patent/ES2290245T3/en not_active Expired - Lifetime
- 2002-05-10 AT AT02076856T patent/ATE371835T1/en not_active IP Right Cessation
- 2002-05-10 EP EP02076856A patent/EP1256760B1/en not_active Expired - Lifetime
- 2002-05-10 DE DE60222048T patent/DE60222048T2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0314897A1 (en) * | 1987-10-31 | 1989-05-10 | Ruhrgas Aktiengesellschaft | Excess-air premix gas burner for gas heating devices |
EP0730127A1 (en) * | 1995-02-28 | 1996-09-04 | Dejatech B.V. | Heat exchanger having a universal combustion chamber and condensate discharge |
EP0774623A1 (en) * | 1995-11-17 | 1997-05-21 | Dejatech B.V. | Burner with segmented burner deck |
NL1002251C1 (en) * | 1996-02-05 | 1997-08-06 | Dejatech Bv | Tilting, non-condensing heating boiler |
EP0816758A1 (en) * | 1996-06-10 | 1998-01-07 | N.V. Radson-Alutherm | Flame distributing device intended for a burner of a hot water appliance |
DE19724806A1 (en) * | 1996-06-11 | 1997-12-18 | Vaillant Joh Gmbh & Co | Full pre-mixed atmospheric radiant burner |
EP0915293A2 (en) * | 1997-11-06 | 1999-05-12 | Robert Bosch Gmbh | Forced draught burner |
Also Published As
Publication number | Publication date |
---|---|
ES2290245T3 (en) | 2008-02-16 |
DE60222048D1 (en) | 2007-10-11 |
DE60222048T2 (en) | 2008-05-21 |
ATE371835T1 (en) | 2007-09-15 |
NL1018054C2 (en) | 2002-11-12 |
EP1256760B1 (en) | 2007-08-29 |
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