EP2161499A2 - Dispositif d'étranglement pour un foyer - Google Patents

Dispositif d'étranglement pour un foyer Download PDF

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Publication number
EP2161499A2
EP2161499A2 EP09168478A EP09168478A EP2161499A2 EP 2161499 A2 EP2161499 A2 EP 2161499A2 EP 09168478 A EP09168478 A EP 09168478A EP 09168478 A EP09168478 A EP 09168478A EP 2161499 A2 EP2161499 A2 EP 2161499A2
Authority
EP
European Patent Office
Prior art keywords
throttle device
flap
exhaust
exhaust gas
main exhaust
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Withdrawn
Application number
EP09168478A
Other languages
German (de)
English (en)
Other versions
EP2161499A3 (fr
Inventor
Manfred Pabst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kutzner and Weber GmbH
Original Assignee
Kutzner and Weber GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kutzner and Weber GmbH filed Critical Kutzner and Weber GmbH
Publication of EP2161499A2 publication Critical patent/EP2161499A2/fr
Publication of EP2161499A3 publication Critical patent/EP2161499A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F23L11/00—Arrangements of valves or dampers after the fire
    • F23L11/005—Arrangements of valves or dampers after the fire for closing the flue during interruption of burner function
    • 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
    • F23L13/00—Construction of valves or dampers for controlling air supply or draught
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/04—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements
    • F23N3/047—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements using mechanical means

Definitions

  • the invention relates according to a first and second aspect thereof, a throttle device and according to its third aspect, an exhaust pipe arrangement for a fireplace.
  • a provided for a gas fireplace throttle device is used to counteract on the one hand at standstill of the gas fireplace penetration of cold ambient air through a connected to the fireplace exhaust pipe arrangement or through a main exhaust duct of the same in a heated gas from the gas fire building and on the other hand the derivation of to ensure the exhaust gas produced in the operation of the gas fireplace to the surroundings of the building.
  • the throttle device arranged in the main exhaust duct increases its throttling effect over a certain operating range with decreasing temperature of the exhaust gas or exhaust gas flow flowing through the throttle device along an exhaust gas flow path.
  • the known throttle device comprises a carrier insert which can be inserted into the main exhaust duct and a plurality of flap elements fastened to the carrier insert and formed from bimetal sheet, wherein each of the flap elements is rigidly connected at its edge within a connecting region to the carrier insert. Free flap member regions of the flap members which are not rigidly connected to the liner insert, unlike the bonding region, are capable of deforming upon exposure to temperature due to a bimetal effect of the bimetallic sheet relative to the liner liner.
  • the deformation of the exhaust gas flow exposed free flap element areas is such that they each take under the drive of the bimetallic effect in accordance with the exhaust gas flow temperature stable position or position in the range between a maximum throttling position and a maximum position Opening is located.
  • the position of maximum throttling corresponds to the situation in which the gas fireplace is out of operation and emits no exhaust gases.
  • the free flap element areas are maximum curved in this position maximum throttling in the exhaust gas flow path, so that the throttle device is locked.
  • the position of maximum opening corresponds substantially to the operational state of the gas furnace, in which it produces exhaust gases. In this position, as a result of the bimetallic effect, the free flap element regions are maximally curved out of the exhaust gas flow path, so that the throttling effect of the known throttle device is minimal.
  • the known throttle device is usually used only in combination with gas fireplaces.
  • the known throttling device is unsuitable because it closes off the main exhaust duct just when the solid fuel heater is to be heated, a chimney effect required to start up the solid fuel heater, which is just a flow connection between the solid fuel heater and a chimney connected to the main exhaust duct via the main exhaust duct.
  • the present invention has for its object to provide a throttle device or a throttle device comprehensive exhaust pipe arrangement, which can be used permanently for gas fireplaces as well as solid fuel fires for controlling the output of the respective fireplace and out in the exhaust gas exhaust stream, as well as in position is to influence this exhaust flow in terms of recovery of its heat energy in the most effective manner possible.
  • a throttle device for a connected to a fireplace, in particular on a Festbrennstofffuer Too exhaust line arrangement with a main exhaust duct, which conducts a discharged exhaust gas stream, and comprises a usable in the main exhaust duct carrier insert in which at least one flap element controlled by a bimetal in response to the bimetallic temperature is arranged to change the free flow cross section of the main exhaust duct in accordance with changes in the exhaust gas temperature, wherein the throttle means the flow cross section of the main exhaust duct with increasing exhaust gas temperature at least in a certain temperature range due to the effect of Flap element reduced.
  • the throttle device according to the invention differs from the in the known throttle device described in the introduction, in particular, that the flap elements are moved under a bimetallic effect into the exhaust gas flow within the specific temperature range with increasing temperature of the exhaust gas flow impinging on the flap elements such that the exhaust gas flow in the main exhaust gas duct is increasingly throttled.
  • the throttle device according to the invention while ensuring a sufficient discharge of the exhaust gases discharged from the fireplace through the exhaust pipe arrangement or through the Hauptabgaskanal a with the hot exhaust gas flow accompanying heat dissipation in the main exhaust duct slowed down and the heat energy of the exhaust gas flow of an energy recovery measure, in the form of, for example, a heat transfer method with reference to a heat exchanger to be explained below.
  • the throttle device according to the first aspect of the present invention is further advantageous in that, in contrast to the throttle device described in the introduction, it can be used without problems for all types of fireplaces, in particular also for the critical solid fuel firebox.
  • the throttle device according to the invention can be designed so that when commissioning the fireplace, in particular a solid fuel heater, it keeps the main exhaust duct open to one, if necessary, for heating allow the fireplace to exhaust the exhaust gases required as a result of a chimney effect.
  • the flap element according to the invention is provided according to an embodiment thereof, depending on the exhaust gas temperature between a position of maximum opening, as it assumes the flap element in the out of service fireplace, and a position of maximum throttling, the flap element from a certain limit temperature has to be reversibly moved relative to the carrier insert or to move to independently.
  • the flap element is made of a non-bimetallic material, in particular made of sheet steel, and is driven by a bimetal formed separately from the flap element.
  • the flap element comprises or is formed as an integral part of the bimetal, in particular a bimetallic sheet.
  • a suitable bimetallic sheet is about that of the known type RGR or GE.
  • the flap element be provided with slots, the slots extending perpendicular to a curvature axis of the flap element.
  • the carrier insert is constructed from at least one planar wall element for attaching the flap element to the carrier insert.
  • the flap element is formed from a planar bimetallic sheet can be advantageously made possible by means of the planar wall element of the carrier insert to couple the flap element along an edge portion of the same to the support insert, without the flap element would have to be deformed for this purpose.
  • Such deformation would have the serious disadvantage of counteracting or even inhibiting deformation of the flap member due to its bimetallic effect, i. a self-locking of the flap element could occur when temperature is applied.
  • the carrier insert is composed of four plan-connected wall elements, which together form a substantially rectangular cross-section of the carrier insert.
  • a carrier insert has the advantage that it can be produced particularly favorably on the basis of metal sheets.
  • the wall elements can be easily connected to each other via known welding or gluing process.
  • the carrier insert is designed in such a way that it is substantially circular Ring housing with two arranged in its interior and substantially intersecting at a right angle planar web elements comprises, where the at least one flap element, preferably exactly four flap elements, is mounted or are.
  • the web elements divide the interior of the ring housing substantially into four interior subspaces, in each of which a flap element can be accommodated. Due to the fact that the web elements are likewise designed flat, the above-described advantage of the planar wall elements is also given for the web elements of this embodiment.
  • the throttle device comprises at least two flap elements, they have substantially the same shape. This makes it possible to use the same manufacturing method for the production of all flap elements.
  • the object of the present invention is further achieved by a throttle device according to a second aspect of the present invention, said throttle device for a connected to a fireplace, in particular a solid fuel heater, connected exhaust pipe arrangement with a main exhaust duct, which conducts a discharged exhaust gas flow is provided, and one in the
  • the main exhaust duct usable carrier insert comprises, is arranged on the at least one controlled by a bimetal depending on the bimetal flap element for changing the free flow cross-section of the main exhaust duct in accordance with changes in exhaust gas temperature, wherein the flap element itself is formed from the bimetal and by means of at least one elastically yielding acting support assembly is connected to the carrier insert, that at the connection region relative to the carrier insert against a resilient biasing force of the Garrungsanordnun g is movable.
  • the throttling device according to the second aspect of the present invention is capable of being used permanently to control the exhaust gas flow from a solid fuel heater without the risk of irreparably damaging the flap elements as a result of one as described above plastic deformation around the connection area exists.
  • the flap element is connected to the carrier insert by means of the at least one elastically yielding holding arrangement and is movable within the connecting region relative to the carrier insert against a resilient biasing force of the holder arrangement, overload forces acting on the flap element due to a high exhaust gas temperature rise can be dissipated via the holder arrangement.
  • the flap element may therefore advantageously be exposed to it over the entire temperature range of an exhaust gas flow emitted by a solid fuel heater, and even more so by a gas fired appliance, without running the risk of experiencing plastic deformation in the connection region between the flap element and the carrier device.
  • a particularly simple embodiment of this mounting arrangement is achieved when the flap element is slidably mounted on a carrier insert arranged on the pin of the support assembly with play and biased by a spring to a basic position. It is preferred that the spring is a seated on the pin compression spring, which is supported with one end to the flap element and this seeks to suppress the basic position.
  • an exhaust pipe arrangement according to a third aspect of the present invention.
  • This exhaust line arrangement is provided for a fireplace with a throttle device according to one of the embodiments described above, wherein the exhaust pipe arrangement comprises a main exhaust passage including the throttle means and at least one subsidiary exhaust passage branching from the main exhaust passage upstream of the throttle means.
  • the throttle device controls the flow resistance of the main exhaust duct in relation to that of the Mauabgaskanals, by means of the throttle device associated with the exhaust flow heat transfer in the main exhaust or Mauabgaskanal controlled or if desired, the heat transfer from the Hauptabgaskanal be at least partially diverted into the Mauabgaskanal ,
  • the exhaust gas stream thus branched off in the secondary exhaust gas duct can then be supplied in a heat energy recovery device connected to the secondary exhaust gas duct, in which heat is removed from the exhaust gas stream for further energy use.
  • thermo energy recovery device there is a heat exchanger in communication with the subsidiary exhaust passage.
  • This serves to deliver heat from the exhaust gas stream of the secondary exhaust gas channel to a medium to be heated in the heat exchanger, such as water.
  • a medium to be heated in the heat exchanger such as water.
  • This in turn can be used energy-efficiently as heating water for heating rooms of the building belonging to the exhaust pipe arrangement.
  • the sub exhaust passage and the main exhaust passage are arranged to recombine their exhaust flows downstream of the heat exchanger and downstream of the throttle means can.
  • FIG. 1 shows a first embodiment of a throttle device according to the invention according to the first and second aspects of the present invention, which is generally designated 10.
  • the throttle assembly 10 includes a carrier insert 12 having a circular ring housing 14, two web members 16 secured within the ring housing 14 and an inner surface thereof, which intersect at right angles at their centers, a total of four identical flap members 18 formed of bimetal sheet having a lower one and an upper edge region 18a and 18b, as well as a plurality of holding elements 20, of which three in each case bring a flap element 18 or its lower edge region 18a into contact with the respective web element 16.
  • Fig. 2 is the throttle device 10 off Fig. 1A in the operational state, ie installed in an exhaust pipe 22, shown.
  • Four spacers 24 extending radially between a peripheral surface of the annular housing 14 and an inner surface of the exhaust pipe 22 keep the throttle body 10 away from the inside of the exhaust pipe 22, so that an exhaust gas flow in the exhaust pipe between the inside of the exhaust pipe 22 and the peripheral surface the throttle device 10 can pass this.
  • the exhaust gas flow is only in Fig. 1b schematically indicated by an arrow L.
  • the exhaust gas flow is substantially orthogonal to the plane of the page.
  • Throttle device 10 shown has the function of adjusting the flow resistance of the same in dependence on the temperature of the exhaust gas flow, wherein the throttle device 10 reduces the flow resistance with increasing exhaust gas flow temperature for a certain temperature range.
  • the exhaust gases to be discharged through the exhaust pipe 22 originate from a solid fuel heater, not shown, such as an open or closed type fuel closed fireplace for wood.
  • the flap elements 18 have assumed a position of maximum opening corresponding to the state of the throttle device 10, in which it provides the largest possible flow cross-section of the exhaust pipe 22. This condition corresponds to the situation where the solid fuel heater is out of service.
  • the flap elements 18, which in this position all have a substantially undeformed planar shape, are arranged parallel to and in abutment with a respective plane side face 16a of the web elements 16 by means of the holding elements 20.
  • the flap members 18 In the deformed state, the flap members 18 have a curved shape with the upper edge portion 18b removed from the corresponding web member side surface 16a, the higher the exhaust temperature is, while the lower edge portion 18a is held by the support members 20 on the side surfaces 16a , As a result of this deformation, with increasing exhaust gas flow temperature, the upper edge 18b curves away from the side surface 16a into the exhaust gas flow, resulting in an overall increase in the flow resistance of the exhaust gas line 22. Over a certain limit temperature, the flap elements 18 are curved so that they abut with their upper edge regions 18b against the inside of the exhaust pipe 22. In this position, the maximum throttling of the flap elements 18 is a flow through the exhaust gas flow through the ring housing 14 largely prevented, as in Fig. 2 is apparent. As already mentioned above, the exhaust gas flow furthermore has the possibility of passing laterally, ie, between the peripheral surface of the throttle device 10 and the inside of the exhaust gas line 22, the throttle device 10.
  • the holding elements 20 are designed such that they elastically yield the flap elements 18 connect with the web elements 16 and thereby the flap elements 18 under a certain game, ie movable, hold on the web elements 16.
  • the support elements 20 are thus able to absorb any overload forces of the flap elements 18 due to a strong increase in temperature of the flap elements 18 by elastically yielding the deformation movement of the flap elements 18.
  • each support member 20 comprises a pin 20a having a projecting pin collar 20a 'formed on one end of the pin 20a, a compression spring 20b comprising the pin 20a, and a circlip 20c disposed on another end of the pin 20a.
  • the pin 20a passes through two overlapping holes of the respective stem member 16 and the respective flap member 18 and is secured against slipping thanks to the locking ring 20c.
  • Characterized in that the compression spring 20b is supported at one end to the flap member 18 and the other end to the pin collar 20a ', it urges the flap member 18 in its position of maximum opening. The spring 20b therefore counteracts a deformation movement of the flap element 18.
  • a throttle device which are generally designated 110, 210 and 310.
  • These throttling devices 110, 210, 310 do not differ in their mode of operation from the throttling device 10 already explained above Fig. 1a, 1b and 2 , For simplicity, therefore, have components in the Fig. 3 to 5 the throttle devices 110, 210 and 310, the same reference numerals as those of analog components of the throttle device 10, but increased by a factor of 100, 200 and 300, respectively.
  • the flap elements analogous to Fig. 2 are shown in their position maximum throttling.
  • throttle device 110 also includes a ring housing 114, but here are the flap members 118 by means of support members 120 to radially between an inner side of the exhaust pipe 122 and a peripheral surface of the ring housing 114 extending planar support webs 117 attached.
  • the support webs 117 are also fixed at one end to the inner surface of the exhaust pipe 122 and the other end to the peripheral surface of the annular housing 114 and have both the function of the above-described web members 16 and the spacer 24 of the throttle device 10 from Fig. 1a, 1b and 2 on.
  • the throttle device 210 is illustrated, which is characterized by a carrier insert 212 having two mutually parallel and spaced support walls 227.
  • the flap members 218 are attached by means of support members 220 to the support walls 227 such that they are disposed between the inside of the exhaust pipe 222 and the support walls 227.
  • the support walls 227 are attached to the inside of the exhaust pipe 222.
  • the exhaust gas flow unhindered between the support walls 227 pass through the throttle device 210.
  • the throttle device 310 has Fig. 5 two additional support walls 319 with two additional flap elements 318, which together with the support walls 327 form a passage for the exhaust gas flow.
  • the exhaust conduit assembly 410 includes a main exhaust passage 412 coupled to an exhaust emitting hearth 414, a throttling device 416 disposed in the main exhaust passage 412 for controlling an exhaust gas flow L 1 carried in the main exhaust passage 412, two subsidiary exhaust passages 418 carrying the exhaust streams L 2 and L 3 from the exhaust gas passage 418
  • the main exhaust passage 412 and the subsidiary exhaust passages 418 are formed to converge their exhaust flows L1, L2 and L3 downstream of the throttle 416 and the heat exchanger 420.
  • the heat exchanger 420 itself comprises an annular storage tank 422, in the likewise annular cavity 424 to be heated water 426 is stored, the cavity 424 passing through exhaust pipes 428, and an inlet and outlet 430 and 432 for Filling or emptying the storage container 422.
  • the heat exchanger 420 has the function of removing thermal energy from the exhaust gas streams L1, L2 and L3, all of which originate from the hearth 414, and to transfer it to the water 426 to be heated.
  • the water 426 heated by the heat exchanger 420 may then be provided as a thermal energy source of an energy use measure, such as heating the building associated with the exhaust conduit assembly 410 with the water 426 as heating water.
  • the heat transfer from the exhaust stream L1 passing in the main exhaust passage 412 is via a tubular and thermally conductive inner wall 434 of the storage tank 422 defining a part of the main exhaust passage 412.
  • exhaust gas streams L2 and L3 are passed through the subsidiary exhaust pipes 428 which form subsections of the subsidiary exhaust gas channels 418. These are in thermal contact with their heat-conducting tubular walls both with the exhaust gas streams L2 and L3 and with the water 426, so that heat from the exhaust gas streams L2 and L3 can be conducted to the water 426.
  • Throttle devices 10, 110, 210 and 310 shown in question have the property of controlling the flow resistance of the main exhaust gas duct 412 in such a way that the flow resistance of the main exhaust gas duct 412 is increased with increasing temperature of the exhaust gas flow L1.
  • the exhaust pipe assembly 410 As the exhaust gas temperature increases, the flow resistances of the subsidiary exhaust passages 418 are reduced in proportion to the flow resistance of the main exhaust passage 412, and thus the secondary exhaust streams L2 and L3 become stronger than the stream L1.
  • the Exhaust line assembly 410 is therefore capable of energy efficiently recovering heat from exhaust streams L1, L2, and L3 while ensuring sufficient discharge of the exhaust streams L1, L2, and L3 to a building environment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
EP09168478.7A 2008-09-03 2009-08-24 Dispositif d'étranglement pour un foyer Withdrawn EP2161499A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008045548A DE102008045548A1 (de) 2008-09-03 2008-09-03 Drosseleinrichtung für eine Feuerstätte

Publications (2)

Publication Number Publication Date
EP2161499A2 true EP2161499A2 (fr) 2010-03-10
EP2161499A3 EP2161499A3 (fr) 2014-08-27

Family

ID=41376320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168478.7A Withdrawn EP2161499A3 (fr) 2008-09-03 2009-08-24 Dispositif d'étranglement pour un foyer

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EP (1) EP2161499A3 (fr)
DE (1) DE102008045548A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054640B (de) * 1955-06-07 1959-04-09 Karl Meller Fa Vorrichtung an Feuerungen, insbesondere Zimmeroefen, zur selbsttaetigen Regelung (Konstanthaltung) der Verbrennungsluftmenge bei Zugschwankungen
DE1937957A1 (de) * 1962-12-12 1971-02-04 Diermayer Werner Thermisch gesteuerte Absperrklappe
DE2705398A1 (de) 1975-03-19 1978-08-10 Werner Diermayer Gasbeheizte feuerstaette
US4191326A (en) * 1978-03-07 1980-03-04 Werner Diermayer Draft control arrangement for combustion apparatus
EP0472895A1 (fr) * 1990-08-31 1992-03-04 Klöckner Wärmetechnik Gmbh Zweigniederlassung Hechingen Dispositif pour régler la température de gaz de sortie dans une chaudière
GB2271834A (en) * 1992-10-23 1994-04-27 Nicholas Julian Jan F Macphail Boiler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294401A (en) * 1977-09-08 1981-10-13 Werner Diermayer Draft control arrangement
US4269166A (en) * 1978-12-21 1981-05-26 Exxon Research & Engineering Company Stack damper valve
US4457294A (en) * 1981-07-06 1984-07-03 Cumpston Edward H Inlet air control for stove or furnace
DE3242834C2 (de) * 1982-11-19 1987-01-08 Werner Lafayette Calif. Diermayer Bimetallgesteuerte Absperrklappe für eine Abgasleitung einer Feuerstätte, insbesondere einer Gasfeuerstätte

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054640B (de) * 1955-06-07 1959-04-09 Karl Meller Fa Vorrichtung an Feuerungen, insbesondere Zimmeroefen, zur selbsttaetigen Regelung (Konstanthaltung) der Verbrennungsluftmenge bei Zugschwankungen
DE1937957A1 (de) * 1962-12-12 1971-02-04 Diermayer Werner Thermisch gesteuerte Absperrklappe
DE2705398A1 (de) 1975-03-19 1978-08-10 Werner Diermayer Gasbeheizte feuerstaette
US4191326A (en) * 1978-03-07 1980-03-04 Werner Diermayer Draft control arrangement for combustion apparatus
EP0472895A1 (fr) * 1990-08-31 1992-03-04 Klöckner Wärmetechnik Gmbh Zweigniederlassung Hechingen Dispositif pour régler la température de gaz de sortie dans une chaudière
GB2271834A (en) * 1992-10-23 1994-04-27 Nicholas Julian Jan F Macphail Boiler

Also Published As

Publication number Publication date
DE102008045548A1 (de) 2010-03-04
EP2161499A3 (fr) 2014-08-27

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