EP3108182B1 - Adjusting device for heat generators - Google Patents
Adjusting device for heat generators Download PDFInfo
- Publication number
- EP3108182B1 EP3108182B1 EP15711847.2A EP15711847A EP3108182B1 EP 3108182 B1 EP3108182 B1 EP 3108182B1 EP 15711847 A EP15711847 A EP 15711847A EP 3108182 B1 EP3108182 B1 EP 3108182B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- passageway
- air
- support shaft
- box
- shaped body
- 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.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 7
- 239000004449 solid propellant Substances 0.000 claims description 5
- 230000000750 progressive effect Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
- F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
-
- 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 GENERALÂ ; 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
- F23L1/00—Passages or apertures for delivering primary air for combustionÂ
- F23L1/02—Passages or apertures for delivering primary air for combustion by discharging the air below the fire
-
- 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 GENERALÂ ; 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
- F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement
-
- 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 GENERALÂ ; 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
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuelÂ
- F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air above the fire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
- F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
- F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
- F24B5/026—Supply of primary and secondary air for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B2700/00—Combustion apparatus for solid fuel
- F23B2700/013—Combustion apparatus for solid fuel for use in baking ovens or cooking vessels
Definitions
- the present invention concerns an adjusting device for heat generators.
- the present invention concerns an adjusting device for the air in inlet into solid fuel heat generators, such as wooden stoves and the like.
- Some types of solid fuel heat generators for heating civil buildings like for example air-tight wooden stoves for rooms of a house and the like, comprise adjustment systems for adjusting the flow rate of comburant air - also called primary air - entering the generator: such systems have been devised to allow the user to vary the characteristics of the combustion of the generator.
- the most simple systems for adjusting the primary air flow rate comprise a manual shutter, that is for example slidingly associated with the base of the generator, which makes it possible to vary the section of the inlet duct of the primary air itself as desired.
- the automatic opening shutter can be slaved to a control unit that, by detecting the temperature of the fumes inside the generator, makes it possible to intervene in a more precise manner on the parameters of the combustion and to reduce discharge emissions.
- the technical task of the present invention is that of improving the state of the art.
- one purpose of the present invention is to devise an adjusting device for heat generators that makes it possible to efficiently control both the quantity of primary air mass and secondary air mass that are introduced inside the generator itself, so as to optimise combustion efficiency.
- Another purpose of the present invention is to provide an adjusting device for heat generators that is simple and cost-effective to make.
- a further purpose of the present invention is to make an adjusting device that can be easily installed in any solid fuel heat generator of the type of wooden stoves and the like, even already operational ones.
- the adjusting device comprises at least one box-shaped body, which is provided with at least one inlet opening for the comburant air and of at least one outlet opening for the comburant air, and at least one rotatable gate valve, housed inside said box-shaped body and interposed between the inlet opening and the outlet opening.
- the gate valve can rotate being suitable for varying the passage section of the comburant air through the box-shaped body.
- the adjusting device moreover comprises at least one dividing element, which is interposed between the rotatable gate valve and the outlet opening, defining a first passageway and a second passageway for the comburant air that are isolated from one another; the first passageway and the second passageway are suitable for being placed in communication with respective distinct paths of the comburant air foreseen in the heat generator.
- the rotatable gate valve comprises a support shaft to which a laminar element is associated; such a laminar element comprises a first portion and a second portion that are coplanar with one another and are respectively suitable for selectively obstructing said first passageway and said second passageway by rotation of the aforementioned support shaft.
- the dividing element foreseen in the adjusting device makes it possible to separate, immediately downstream of the gate valve, the passageway of the primary comburant air from the passageway of the secondary comburant air, so that the respective flow rates can be controlled separately from one another, even independently from one another.
- Claim 13 moreover refers to a heat generator comprising the adjusting device according to claim 1.
- reference numeral 1 wholly indicates an adjusting device for heat generators according to the present invention.
- the heat generator 2 is, in particular, of the solid fuel type.
- the generator only as a non-limiting example, consists of a wood stove with an airtight chamber.
- the heat generator in which the adjusting device 1 is installed could also be of another type, without limiting the purposes of the present invention.
- the generator 2 comprises, in detail, a base 3.
- the base 3 is parallelepiped shaped, but it could of course have another shape, without any limitation.
- a furnace 4 or combustion chamber is housed inside the base 3 .
- a closing hatch 5 for the furnace 4 is foreseen; the closing hatch 5 is provided with a window 6, which makes it possible to see the flame inside the furnace 4.
- brazier 7 is housed, with a respective grill 8.
- the base 3 comprises lower openings 9 and upper openings 10 that define, inside the generator 2, a path for convective air to pass, indicated with A in figure 3 .
- the convective air A flows from below through natural convection or it is sucked, for example, through fan means, it reaches the furnace 4 and heats, to then be directly discharged into the environment or into suitable conveying ducts towards the desired room.
- an inlet duct 11 for the comburant air is foreseen, communicating with the outer environment.
- the path of the primary comburant air B substantially develops from the inlet duct 11 to the area of the furnace 4 below the grill 8 of the brazier 7.
- the path of the secondary comburant air C substantially develops from the inlet duct 11 to the area immediately above the closing hatch 5, so as to reach the inner surface 6a of the window 6.
- the path of the tertiary comburant air D or post-combustion air finally, substantially develops from the inlet duct 11 to the rear area of the furnace 4.
- the adjusting device 1 according to the invention is illustrated, in greater detail, in figures 9-13 and 15-19 .
- the adjusting device 1 comprises a box-shaped body 12.
- the box-shaped body 12 comprises an inlet opening 13 for the comburant air, and an outlet opening 14 for the comburant air.
- the inlet opening 13 of the box-shaped body 12 is directly placed in contact with the inlet duct 11, which has a flanged end 15 that can be connected, for example, to the base 3 of the heat generator 2, or to other parts thereof.
- the outlet opening 14 comprises a flanged portion 16 for connecting to parts of the generator 2, as shall be described in greater detail hereafter.
- the box-shaped body 12 moreover comprises a rotatable gate valve 17.
- the box-shaped body 12 comprises a single rotatable gate valve 17.
- the rotatable gate valve 17 is inserted inside the box-shaped body 12, in the way that shall be described in greater detail hereafter.
- the rotatable gate valve 17 is, in more detail, interposed between the inlet opening 13 and the outlet opening 14.
- the rotatable gate valve 17 is suitable for varying, according to predetermined modalities, the passage section of the comburant air through the box-shaped body 12.
- the adjusting device 1 comprises a dividing element 18.
- the dividing element 18 is interposed between the rotatable gate valve 17 and the outlet opening 14 of the comburant air.
- the dividing element 18 is placed downstream of the rotatable gate valve 17 with reference to the flow of air from the inlet opening 13 to the outlet opening 14.
- the dividing element 18 defines, inside the box-shaped body 12, a first passageway 19 and a second passageway 20 for the comburant air, which are isolated from one another.
- the first passageway 19 and the second passageway 20 develop according to respective directions that are parallel or substantially parallel to one another.
- first passageway 19 and the second passageway 20 are suitable for being placed in communication with respective distinct paths for the comburant air B', C' foreseen in the generator 2.
- the box-shaped body 12 is arranged substantially vertical inside the generator 2, and is joined to the inlet duct 11 of the comburant air; more in particular, the box-shaped body 12 is joined to the inlet duct 11 so as to define a right-angle elbow.
- the shape of the cross-section of the box-shaped body 12 can be any, in relation to the specific application requirements.
- the box-shaped body 12 comprises a front wall 21, a rear wall 22 and two side walls 23, 24.
- the front wall 21 of the box-shaped body 12 has an inspection opening 25 that is closed by a lid 26, which keeps a sealing gasket 27 in place.
- the rotatable gate valve 17 comprises a support shaft 28.
- the support shaft 28 has the terminal ends 29 that are rotatably supported in the side walls 23,24 of the box-shaped body 12.
- the support shaft 28 has the terminal ends 29 that are rotatably supported at the centre line of the side walls 23, 24, so that the support shaft 28 is positioned equidistant from the front wall 21 and from the rear wall 22.
- the valve 17 moreover comprises a laminar element 30 that is associated with the support shaft 28.
- the laminar element 30 is illustrated in detail in figures 17-19 .
- the support shaft 28 comprises a flat surface 31 to which the laminar element 30 is fixed, for example with central screws 32.
- the laminar element 30 is fixed to the support shaft 28 so that its opposite edges are positioned on opposite sides with respect to the axis of the support shaft 28.
- the laminar element 30 is fixed to the support shaft 28 so as to be able to be moved, when needed, to one side or the other obtaining, with respect to the axis of the support shaft 28 itself, two segments the lengths of which can be changed as desired.
- the laminar element 30 comprises a first portion 30a and a second portion 30b.
- the first portion 30a and the second portion 30b are coplanar with one another.
- the first portion 30a and the second portion 30b are respectively suitable for selectively obstructing the first passageway 19 and the second passageway 30 by rotation of the support shaft 28.
- the rotatable gate valve 17 is illustrated in the position in which the first passageway 19 and the second passageway 20 are completely obstructed, respectively by the first portion 30a and by the second portion 30b of the laminar element 30.
- the laminar element 30 has its opposite edges that respectively abut against the front wall 21 and against the rear wall 22.
- valve 17 is illustrated in a certain operative position in which the first passageway 19 and the second passageway 20 are both open.
- the rotation of the valve 17 makes it possible to simultaneously and progressively vary both the section of the first passageway 19 and the second passageway 20.
- the rotation of the single valve 17 makes it possible to act simultaneously on the adjustment of the first passageway 19 and on the second passageway 20, by using a single valve body made up of the laminar element 30, with the first portion 30a and the second portion 30b that rotate as a unit with one another.
- first and second portions 30a, 30b can be obtained with different dimensions by using a same laminar element 30.
- the laminar element 30 comprises an end appendage 33 that is elastically yieldable.
- the elastically yieldable end appendage 33 is foreseen along one of the opposite edges of the laminar element 30.
- the end appendage 33 is, more in particular, foreseen along the end edge of the first portion 30a of the laminar element 30.
- the end appendage 33 is suitable for sealingly abutting on at least one of the walls 21, 22, 23, 24 of the box-shaped body 12, for at least one part of the rotation of the support shaft 28.
- end appendage 33 is suitable for sealingly abutting against the rear wall 22 of the box-shaped body 12, with the technical advantages that shall be illustrated in greater detail in the rest of the description.
- the laminar element 30 is folded back on itself like a wallet.
- the laminar element thus 30 defines two matching edges 34, which lock the elastically yieldable end appendage 33 between one another.
- the end appendage 33 comprises a tubular portion 35 and a laminar portion 36.
- the laminar portion 36 is connected to the tubular portion 35 along a generatrix of its outer surface, and it is suitable for being locked between the aforementioned matching edges 34.
- the laminar element 30 is locked on the end appendage 33 through screws 37 inserted in respective threaded holes 38 foreseen in the laminar element 30 itself.
- the locking of the laminar element 30 on the end appendage 33 could be carried out with equivalent locking members.
- the support shaft 28 is fixed to the laminar element 30 substantially along the longitudinal centre line of the latter.
- the support shaft 28 could be fixed to the laminar element 30 along an axis that is parallel to the aforementioned centre line axis, so as to obtain a non-symmetrical arrangement of the laminar element 30 itself with respect to the support shaft 28.
- the laminar element 30, in the embodiment represented in the figures, comprises openings 39 that are suitable for the passage of the comburant air.
- the adjusting device 1 moreover comprises an actuation motor 40 for actuating the rotatable gate valve 17.
- the actuation motor 40 comprises an outlet axis that is rigidly connected to one of the terminal ends 29 of the support shaft 28.
- the actuation motor 40 is fixed with screws to the outer surface of the box-shaped body 12, preferably on a bracket 41 connected - for example through welding - to the aforementioned outer surface.
- the actuation motor 40 is operatively connected to the control means for controlling the operation of the heat generator 2, which are not part of the present invention.
- the dividing element 18 has a laminar shape.
- the dividing element 18 comprises, more in particular, a first end edge 42 and an opposite second end edge 43, which are fixed to the side walls 23, 24 of the box-shaped body 12, respectively.
- first end edge 43 and the second end edge 44 are folded back at a right angle with respect to the surface of the dividing element 18, and are fixed to the side walls 23, 24 of the box-shaped body 12, for example through screws.
- the dividing element 18 comprises a third end edge 44.
- the third end edge 44 is, in particular, placed in contact with the support shaft 28 of the rotatable gate valve 17.
- the dividing element 18 comprises a fourth end edge 45 that is folded back over itself, opposite to the third end edge 44.
- the fourth end edge 45 folded back over itself makes it possible to obtain the joint between the passageways 19, 20 and the paths B', C' of the comburant air that are foreseen in the generator 2.
- the operation of the adjusting device 1 according to the invention is intuitive.
- the end appendage 33 of the laminar element 30, which as mentioned is elastically yieldable, is mounted so as to sealingly abut against the rear wall 22 of the box-shaped body 12 for a certain angular excursion in the rotation of the support shaft 28.
- valve 17 is sized in such a way that the end appendage 33 is slightly deformed, or rather compressed, when the laminar element 30 is in the horizontal closed position, i.e., when the first portion 30a and the second portion 30b respectively obstruct the first passageway 19 and the second passageway 20.
- the progressive rotation of the support shaft 28 makes it possible for there to be the gradual release of such a deformation, so that the end appendage 33 is in any case kept in sealing contact with the rear wall 22 of the box-shaped body 12 relating to the aforementioned angular excursion of the support shaft 28.
- the first passageway 19 is that of the primary comburant air B of the generator 2
- the adjusting device 1 according to the present invention can be used, inside a heat generator 2, for partializing and controlling the flow rates of comburant air that belong to any path inside the generator 2 itself, without any limitation to the purposes of the present invention.
- One object of the present invention is also a heat generator 2 of the type previously described and comprising an adjusting device 1 with the illustrated characteristics.
- the path of the primary comburant air B is placed in communication with the first passageway 19 of the device 1, whereas the path of the secondary comburant air C is placed in communication with the second passageway 20.
- the generator 2 comprises a box-shaped joining element 46, which is visible in particular in figures 8 and 14 .
- the joining element 46 is positioned at the top of the adjusting device 1.
- the joining element 46 could have a different arrangement inside the generator 2.
- the joining element 46 comprises, in more detail, an inlet entrance 47 for the comburant air communicating with the outlet opening 14 of the box-shaped body 12 of the device 1.
- the inlet entrance 47 is foreseen in the lower wall of the joining element 46.
- the joining element 46 moreover comprises first outlet ports 48 communicating with the first passageway 19 of the device 1, and second outlet ports 49 communicating with the second passageway 20 of the device 1.
- the first outlet ports 48 and the second outlet ports 49 are foreseen in the upper wall of the joining element 46.
- the joining element 46 moreover comprises, inside it, a separation wall 50.
- the separation wall 50 abuts against the dividing element 18.
- the separation wall 50 abuts against the fourth end edge 45 of the dividing element 18, and it is suitable for defining the initial sections of the path B' for the primary comburant air B and for the path C' for the secondary comburant air C inside the generator 2.
- the separation wall 50 divides the inlet entrance 47 in two portions, respectively corresponding to the first passageway 19 and to the second passageway 20 of the adjusting device 2.
- the separation wall 50 makes it possible to obtain, in more detail, an effective isolated communication between the first passageway 19 of the device 1 and the first outlet ports 48, and between the second passageway 20 and the second outlet ports 49.
- the joining element 46 makes it possible to effectively connect, and without the risk of unpleasant mixing of air, the first passageway 19 with the path B' of the primary comburant air B, and the second passageway 20 with the path C' of the secondary comburant air C of the generator 2.
- the first outlet ports 48 and the second outlet ports 49 of the joining element 46 communicate, isolated from one another, respectively with the path B' of the primary comburant air B and with the path C' of the secondary comburant air C.
- the joining element 46 can be shaped so as to obtain different connections between the adjusting device 1 and the various paths of the comburant air inside the generator 2.
- the adjusting device according to the invention makes it possible to separate the flows of the primary and of the secondary comburant air immediately downstream of the gate valve 17, so as to control its flow rates to optimise the combustion of the heat generator.
- the particular gate valve 17 of the device according to the invention also makes it possible to vary, in an independent manner from one another, the passage sections of the primary and secondary comburant air, thus obtaining the desired effects on the efficiency of the combustion inside the generator.
- the proposed solution is simple and cost-effective to make, and it can be also installed in existing heat generators.
- the results described above are obtained by using a single gate valve 17, which makes it possible - by singly controlling the rotation of the relative support shaft 28 - to simultaneously adjust the opening of the first passageway 19 and of the second passageway 20.
Description
- The present invention concerns an adjusting device for heat generators.
- More in particular, the present invention concerns an adjusting device for the air in inlet into solid fuel heat generators, such as wooden stoves and the like.
- Some types of solid fuel heat generators for heating civil buildings, like for example air-tight wooden stoves for rooms of a house and the like, comprise adjustment systems for adjusting the flow rate of comburant air - also called primary air - entering the generator: such systems have been devised to allow the user to vary the characteristics of the combustion of the generator.
- The most simple systems for adjusting the primary air flow rate comprise a manual shutter, that is for example slidingly associated with the base of the generator, which makes it possible to vary the section of the inlet duct of the primary air itself as desired.
- Other types of more advanced generators are provided with a system for adjusting the flow rate of the primary air comprising an automatic rotating shutter, which is moved by an actuator, which is suitable for eliminating the need of intervention by the user.
- Moreover, the automatic opening shutter can be slaved to a control unit that, by detecting the temperature of the fumes inside the generator, makes it possible to intervene in a more precise manner on the parameters of the combustion and to reduce discharge emissions.
- It has however been found in practice that this last type of adjustment system makes it possible to precisely adjust the flow rate of the primary air entering the furnace, but it does not make it possible to intervene in any way on the actual distribution of air itself inside the furnace.
- More in detail, normal automatic valve systems do not make it possible to achieve an effective control of the mass proportions between the aforementioned primary air, which flows towards the grill of the brazier, and the so-called secondary air, i.e., the air that flows along the window of the generator for cleaning it.
- Since in modern heat generators preference is given to the flow of secondary air over that of primary air in order to keep down emission of carbon monoxide, the fact that it is impossible to adjust the proportions between primary and secondary air mass that flow inside the generator as desired is a major drawback. Document
EP2551591 A2 andWO2010/029567 disclose the preamble of independent claim 1. - The technical task of the present invention is that of improving the state of the art.
- In such a technical task, one purpose of the present invention is to devise an adjusting device for heat generators that makes it possible to efficiently control both the quantity of primary air mass and secondary air mass that are introduced inside the generator itself, so as to optimise combustion efficiency.
- Again another purpose of the present invention is to provide an adjusting device for heat generators that is simple and cost-effective to make.
- A further purpose of the present invention is to make an adjusting device that can be easily installed in any solid fuel heat generator of the type of wooden stoves and the like, even already operational ones.
- This task and these purposes are achieved with the adjusting device for heat generators according to attached claim 1.
- The adjusting device according to the invention comprises at least one box-shaped body, which is provided with at least one inlet opening for the comburant air and of at least one outlet opening for the comburant air, and at least one rotatable gate valve, housed inside said box-shaped body and interposed between the inlet opening and the outlet opening.
- The gate valve can rotate being suitable for varying the passage section of the comburant air through the box-shaped body.
- The adjusting device moreover comprises at least one dividing element, which is interposed between the rotatable gate valve and the outlet opening, defining a first passageway and a second passageway for the comburant air that are isolated from one another; the first passageway and the second passageway are suitable for being placed in communication with respective distinct paths of the comburant air foreseen in the heat generator.
- The rotatable gate valve, according to one important aspect of the invention, comprises a support shaft to which a laminar element is associated; such a laminar element comprises a first portion and a second portion that are coplanar with one another and are respectively suitable for selectively obstructing said first passageway and said second passageway by rotation of the aforementioned support shaft.
- The dividing element foreseen in the adjusting device makes it possible to separate, immediately downstream of the gate valve, the passageway of the primary comburant air from the passageway of the secondary comburant air, so that the respective flow rates can be controlled separately from one another, even independently from one another.
-
Claim 13 moreover refers to a heat generator comprising the adjusting device according to claim 1. - The dependent claims refer to preferred and advantageous embodiments of the invention.
- The characteristics of the invention shall become clearer by any man skilled in the art from the following description and from the attached drawing tables, given as a non-limiting example, in which:
-
figure 1 is a front view of a heat generator comprising the device according to the invention; -
figure 2 is a rear view of the heat generator offigure 1 ; -
figure 3 is a section view of the heat generator sectioned along the plane III-III offigure 2 ; -
figure 4 is a top view of the heat generator; -
figure 5 is a view of the heat generator from below; -
figure 6 is a section view of the heat generator sectioned along the plane VI-VI offigure 1 ; -
figure 7 is a perspective view of the generator with some parts removed for the sake of greater clarity; -
figure 8 is a perspective view of the device according to the invention; -
figure 9 is a front view of the device; -
figure 10 is a rear view of the device; -
figure 11 is a section view of the device sectioned along the plane XI-XI offigure 9 ; -
figure 12 is a section view of the device sectioned along the plane XII-XII offigure 9 ; -
figure 13 is an exploded axonometric view of the device; -
figure 14 is another perspective view of the device with some parts removed for the sake of clarity; -
figure 15 is a detailed section of the device, in an operating step of the heat generator; -
figure 16 is a section view of the device sectioned along the plane XVI-XVI offigure 15 ; -
figure 17 is an exploded axonometric view of parts of the gate valve of the device; -
figure 18 is a top view of parts of the gate valve; -
figure 19 is a side view of parts of the gate valve. - With reference to the attached
figure 3 , reference numeral 1 wholly indicates an adjusting device for heat generators according to the present invention. - In particular, in
figures 1-8 and14 the adjusting device 1 according to the invention is illustrated installed inside a respective heat generator, wholly indicated withreference numeral 2. - The
heat generator 2 is, in particular, of the solid fuel type. - More in detail, in the embodiment described and illustrated the
generator 2, only as a non-limiting example, consists of a wood stove with an airtight chamber. - In other embodiments of the invention, the heat generator in which the adjusting device 1 is installed could also be of another type, without limiting the purposes of the present invention.
- The
generator 2 comprises, in detail, abase 3. - The
base 3 is parallelepiped shaped, but it could of course have another shape, without any limitation. - Inside the base 3 a
furnace 4 or combustion chamber is housed. - In the front part of the base 3 a
closing hatch 5 for thefurnace 4 is foreseen; theclosing hatch 5 is provided with awindow 6, which makes it possible to see the flame inside thefurnace 4. - Inside the furnace 4 a
brazier 7 is housed, with a respective grill 8. - As illustrated in particular in
figures 4, 5 , thebase 3 compriseslower openings 9 andupper openings 10 that define, inside thegenerator 2, a path for convective air to pass, indicated with A infigure 3 . - The convective air A flows from below through natural convection or it is sucked, for example, through fan means, it reaches the
furnace 4 and heats, to then be directly discharged into the environment or into suitable conveying ducts towards the desired room. - In the lower part of the
base 3 aninlet duct 11 for the comburant air is foreseen, communicating with the outer environment. - Inside the
generator 2 paths are defined for the primary comburant air and the secondary comburant air, and possibly also tertiary comburant air, or post-combustion air. - In particular, again with reference to
figure 3 , the path of the primary comburant air B substantially develops from theinlet duct 11 to the area of thefurnace 4 below the grill 8 of thebrazier 7. - The path of the secondary comburant air C, on the other hand, substantially develops from the
inlet duct 11 to the area immediately above theclosing hatch 5, so as to reach theinner surface 6a of thewindow 6. - The path of the tertiary comburant air D or post-combustion air, finally, substantially develops from the
inlet duct 11 to the rear area of thefurnace 4. - The adjusting device 1 according to the invention is illustrated, in greater detail, in
figures 9-13 and15-19 . - The adjusting device 1 comprises a box-shaped
body 12. - The box-shaped
body 12 comprises aninlet opening 13 for the comburant air, and anoutlet opening 14 for the comburant air. - In the represented embodiment, the inlet opening 13 of the box-shaped
body 12 is directly placed in contact with theinlet duct 11, which has aflanged end 15 that can be connected, for example, to thebase 3 of theheat generator 2, or to other parts thereof. - The
outlet opening 14 comprises aflanged portion 16 for connecting to parts of thegenerator 2, as shall be described in greater detail hereafter. - The box-shaped
body 12 moreover comprises arotatable gate valve 17. - More in detail, the box-shaped
body 12 comprises a singlerotatable gate valve 17. - The
rotatable gate valve 17 is inserted inside the box-shapedbody 12, in the way that shall be described in greater detail hereafter. - The
rotatable gate valve 17 is, in more detail, interposed between theinlet opening 13 and theoutlet opening 14. - The
rotatable gate valve 17 is suitable for varying, according to predetermined modalities, the passage section of the comburant air through the box-shapedbody 12. - According to one aspect of the present invention, the adjusting device 1 comprises a dividing
element 18. - The dividing
element 18 is interposed between therotatable gate valve 17 and the outlet opening 14 of the comburant air. - In other words, the dividing
element 18 is placed downstream of therotatable gate valve 17 with reference to the flow of air from the inlet opening 13 to theoutlet opening 14. - The dividing
element 18 defines, inside the box-shapedbody 12, afirst passageway 19 and asecond passageway 20 for the comburant air, which are isolated from one another. - In the section that affects the box-shaped
body 12, thefirst passageway 19 and thesecond passageway 20 develop according to respective directions that are parallel or substantially parallel to one another. - In more detail, as shall be explained more clearly hereafter, the
first passageway 19 and thesecond passageway 20 are suitable for being placed in communication with respective distinct paths for the comburant air B', C' foreseen in thegenerator 2. - The box-shaped
body 12 is arranged substantially vertical inside thegenerator 2, and is joined to theinlet duct 11 of the comburant air; more in particular, the box-shapedbody 12 is joined to theinlet duct 11 so as to define a right-angle elbow. - The shape of the cross-section of the box-shaped
body 12 can be any, in relation to the specific application requirements. - The box-shaped
body 12 comprises afront wall 21, arear wall 22 and twoside walls - The
front wall 21 of the box-shapedbody 12 has aninspection opening 25 that is closed by alid 26, which keeps a sealinggasket 27 in place. - The
rotatable gate valve 17 comprises asupport shaft 28. - The
support shaft 28 has the terminal ends 29 that are rotatably supported in theside walls body 12. - In particular, as visible for example in
figures 11 and15 , thesupport shaft 28 has the terminal ends 29 that are rotatably supported at the centre line of theside walls support shaft 28 is positioned equidistant from thefront wall 21 and from therear wall 22. - The
valve 17 moreover comprises alaminar element 30 that is associated with thesupport shaft 28. - The
laminar element 30 is illustrated in detail infigures 17-19 . - In particular, the
support shaft 28 comprises aflat surface 31 to which thelaminar element 30 is fixed, for example withcentral screws 32. - The
laminar element 30 is fixed to thesupport shaft 28 so that its opposite edges are positioned on opposite sides with respect to the axis of thesupport shaft 28. - More in particular - by observing the
valve 17 in section - thelaminar element 30 is fixed to thesupport shaft 28 so as to be able to be moved, when needed, to one side or the other obtaining, with respect to the axis of thesupport shaft 28 itself, two segments the lengths of which can be changed as desired. - This, as shall become clearer hereafter, makes it possible to selectively vary, at the discretion of the user, the adjustment modalities of the
first passageway 19 and of thesecond passageway 20. - According to one aspect of the invention, the
laminar element 30 comprises afirst portion 30a and asecond portion 30b. - The
first portion 30a and thesecond portion 30b are coplanar with one another. - The
first portion 30a and thesecond portion 30b are respectively suitable for selectively obstructing thefirst passageway 19 and thesecond passageway 30 by rotation of thesupport shaft 28. - In
figure 11 therotatable gate valve 17 is illustrated in the position in which thefirst passageway 19 and thesecond passageway 20 are completely obstructed, respectively by thefirst portion 30a and by thesecond portion 30b of thelaminar element 30. - In this position, the
laminar element 30 has its opposite edges that respectively abut against thefront wall 21 and against therear wall 22. - In
figures 15 and 16 , on the other hand, thevalve 17 is illustrated in a certain operative position in which thefirst passageway 19 and thesecond passageway 20 are both open. - In particular, as can be understood, the rotation of the
valve 17 makes it possible to simultaneously and progressively vary both the section of thefirst passageway 19 and thesecond passageway 20. - In other words, the rotation of the
single valve 17 makes it possible to act simultaneously on the adjustment of thefirst passageway 19 and on thesecond passageway 20, by using a single valve body made up of thelaminar element 30, with thefirst portion 30a and thesecond portion 30b that rotate as a unit with one another. - Therefore, in relation to the rotation of the
support shaft 28, and also to the fixing position of thelaminar element 30 with respect to thesupport shaft 28 itself (for example symmetric or asymmetric with respect to the support shaft 28), it is possible to obtain various adjustment conditions in relation to the specific application requirements. - In other words, first and
second portions laminar element 30. - According to one aspect of the present invention, the
laminar element 30 comprises anend appendage 33 that is elastically yieldable. - The elastically
yieldable end appendage 33 is foreseen along one of the opposite edges of thelaminar element 30. - The
end appendage 33 is, more in particular, foreseen along the end edge of thefirst portion 30a of thelaminar element 30. - As shall be made clearer hereafter, the
end appendage 33 is suitable for sealingly abutting on at least one of thewalls body 12, for at least one part of the rotation of thesupport shaft 28. - In more detail, the
end appendage 33 is suitable for sealingly abutting against therear wall 22 of the box-shapedbody 12, with the technical advantages that shall be illustrated in greater detail in the rest of the description. - According to another aspect of the present invention, the
laminar element 30 is folded back on itself like a wallet. - The laminar element thus 30 defines two matching
edges 34, which lock the elasticallyyieldable end appendage 33 between one another. - In more detail, the
end appendage 33 comprises atubular portion 35 and alaminar portion 36. - The
laminar portion 36 is connected to thetubular portion 35 along a generatrix of its outer surface, and it is suitable for being locked between the aforementioned matching edges 34. - In the embodiment shown, the
laminar element 30 is locked on theend appendage 33 throughscrews 37 inserted in respective threadedholes 38 foreseen in thelaminar element 30 itself. - In other embodiments of the invention, the locking of the
laminar element 30 on theend appendage 33 could be carried out with equivalent locking members. - As previously mentioned, the
support shaft 28 is fixed to thelaminar element 30 substantially along the longitudinal centre line of the latter. - This solution makes it possible, with the
laminar element 30 in the closing configuration - in particular, in the figures, arranged horizontally - to have bothpassageways - In other embodiments of the invention that are not represented in the figures, the
support shaft 28 could be fixed to thelaminar element 30 along an axis that is parallel to the aforementioned centre line axis, so as to obtain a non-symmetrical arrangement of thelaminar element 30 itself with respect to thesupport shaft 28. - This other solution makes it possible, as previously mentioned, to differentiate the sections of the
first passageway 19 and of thesecond passageway 20 as desired. - For example, it is possible to make a solution in which one of the two
passageways - The
laminar element 30, in the embodiment represented in the figures, comprisesopenings 39 that are suitable for the passage of the comburant air. - Also this solution makes it possible to differentiate the sections of the first 19 and/or of the second 20 passageway as desired.
- More in particular, thanks to this solution it is possible to increase by a certain amount the section of the
first passageway 19 or of thesecond passageway 20. - The adjusting device 1 according to the invention moreover comprises an
actuation motor 40 for actuating therotatable gate valve 17. - The
actuation motor 40 comprises an outlet axis that is rigidly connected to one of the terminal ends 29 of thesupport shaft 28. - As illustrated for example in
figure 13 , theactuation motor 40 is fixed with screws to the outer surface of the box-shapedbody 12, preferably on abracket 41 connected - for example through welding - to the aforementioned outer surface. - The
actuation motor 40 is operatively connected to the control means for controlling the operation of theheat generator 2, which are not part of the present invention. - The dividing
element 18 has a laminar shape. - The dividing
element 18 comprises, more in particular, afirst end edge 42 and an oppositesecond end edge 43, which are fixed to theside walls body 12, respectively. - In particular, the
first end edge 43 and thesecond end edge 44 are folded back at a right angle with respect to the surface of the dividingelement 18, and are fixed to theside walls body 12, for example through screws. - The dividing
element 18 comprises athird end edge 44. - The
third end edge 44 is, in particular, placed in contact with thesupport shaft 28 of therotatable gate valve 17. - In such a way, it is possible to obtain an efficient isolation between the
first passageway 19 and thesecond passageway 20. - Moreover, the dividing
element 18 comprises afourth end edge 45 that is folded back over itself, opposite to thethird end edge 44. - As shall be made clear in the rest of the description, the
fourth end edge 45 folded back over itself makes it possible to obtain the joint between thepassageways generator 2. - The operation of the adjusting device 1 according to the invention is intuitive.
- By rotation the
support shaft 28 of thevalve 17 through theactuation motor 40, it is possible to simultaneously vary the section of thefirst passageway 19 and of thesecond passageway 20, so as to adjust as desired, and in a controlled manner, the flow rate of the primary comburant air B and of the secondary comburant air C. - According to an interesting aspect of the invention, the
end appendage 33 of thelaminar element 30, which as mentioned is elastically yieldable, is mounted so as to sealingly abut against therear wall 22 of the box-shapedbody 12 for a certain angular excursion in the rotation of thesupport shaft 28. - In other words, the
valve 17 is sized in such a way that theend appendage 33 is slightly deformed, or rather compressed, when thelaminar element 30 is in the horizontal closed position, i.e., when thefirst portion 30a and thesecond portion 30b respectively obstruct thefirst passageway 19 and thesecond passageway 20. - The progressive rotation of the
support shaft 28 makes it possible for there to be the gradual release of such a deformation, so that theend appendage 33 is in any case kept in sealing contact with therear wall 22 of the box-shapedbody 12 relating to the aforementioned angular excursion of thesupport shaft 28. - In the particular case in which the
first passageway 19 is that of the primary comburant air B of thegenerator 2, thanks to this solution it is possible to progressively open the second passageway 20 - for the secondary comburant air C - and on the other hand, for a certain angular excursion of thesupport shaft 28, keep thefirst passageway 19 closed, so that no primary comburant air B enters inside thegenerator 2. - Of course, this makes it possible to give more weight to the feeding of the
generator 2 with only secondary comburant air C or in any case with a greater flow rate of secondary comburant air C with respect to the primary comburant air B, with considerable advantages, for example, in terms of carbon monoxide emissions. - More in general, it is worth underlining that the adjusting device 1 according to the present invention can be used, inside a
heat generator 2, for partializing and controlling the flow rates of comburant air that belong to any path inside thegenerator 2 itself, without any limitation to the purposes of the present invention. - One object of the present invention is also a
heat generator 2 of the type previously described and comprising an adjusting device 1 with the illustrated characteristics. - In particular, in the
generator 2 according to the invention, the path of the primary comburant air B is placed in communication with thefirst passageway 19 of the device 1, whereas the path of the secondary comburant air C is placed in communication with thesecond passageway 20. - According to one aspect of the invention, the
generator 2 comprises a box-shaped joiningelement 46, which is visible in particular infigures 8 and14 . - The joining
element 46 is positioned at the top of the adjusting device 1. - In other embodiments, the joining
element 46 could have a different arrangement inside thegenerator 2. - The joining
element 46 comprises, in more detail, aninlet entrance 47 for the comburant air communicating with the outlet opening 14 of the box-shapedbody 12 of the device 1. - The
inlet entrance 47 is foreseen in the lower wall of the joiningelement 46. - The joining
element 46 moreover comprisesfirst outlet ports 48 communicating with thefirst passageway 19 of the device 1, andsecond outlet ports 49 communicating with thesecond passageway 20 of the device 1. - The
first outlet ports 48 and thesecond outlet ports 49 are foreseen in the upper wall of the joiningelement 46. - The joining
element 46 moreover comprises, inside it, aseparation wall 50. - The
separation wall 50 abuts against the dividingelement 18. - In more detail, the
separation wall 50 abuts against thefourth end edge 45 of the dividingelement 18, and it is suitable for defining the initial sections of the path B' for the primary comburant air B and for the path C' for the secondary comburant air C inside thegenerator 2. - The
separation wall 50 divides theinlet entrance 47 in two portions, respectively corresponding to thefirst passageway 19 and to thesecond passageway 20 of the adjustingdevice 2. - The
separation wall 50 makes it possible to obtain, in more detail, an effective isolated communication between thefirst passageway 19 of the device 1 and thefirst outlet ports 48, and between thesecond passageway 20 and thesecond outlet ports 49. - In other words, the joining
element 46 makes it possible to effectively connect, and without the risk of unpleasant mixing of air, thefirst passageway 19 with the path B' of the primary comburant air B, and thesecond passageway 20 with the path C' of the secondary comburant air C of thegenerator 2. - Indeed, relating to the
generator 2, thefirst outlet ports 48 and thesecond outlet ports 49 of the joiningelement 46 communicate, isolated from one another, respectively with the path B' of the primary comburant air B and with the path C' of the secondary comburant air C. - Of course, the joining
element 46 can be shaped so as to obtain different connections between the adjusting device 1 and the various paths of the comburant air inside thegenerator 2. - It has thus been seen how the invention achieves the proposed purposes.
- The adjusting device according to the invention makes it possible to separate the flows of the primary and of the secondary comburant air immediately downstream of the
gate valve 17, so as to control its flow rates to optimise the combustion of the heat generator. - The
particular gate valve 17 of the device according to the invention also makes it possible to vary, in an independent manner from one another, the passage sections of the primary and secondary comburant air, thus obtaining the desired effects on the efficiency of the combustion inside the generator. - The proposed solution is simple and cost-effective to make, and it can be also installed in existing heat generators.
- According to an interesting aspect of the present invention, the results described above are obtained by using a
single gate valve 17, which makes it possible - by singly controlling the rotation of the relative support shaft 28 - to simultaneously adjust the opening of thefirst passageway 19 and of thesecond passageway 20. - The present invention has been described according to preferred embodiments, but equivalent variants can be conceived without departing from the scope of protection offered from the following claims.
Claims (18)
- Adjusting device for heat generators, comprising at least one box-shaped body (12) with walls (21,22, 23, 24), said body provided with at least one inlet opening (13) for introducing comburant air and with at least one outlet opening (14) for the comburant air, and at least one rotatable gate valve (17), housed inside said box-shaped body (12) and interposed between said inlet opening (13) and said outlet opening (14), said rotatable gate valve (17) being suitable for varying the passage section of the comburant air through said box-shaped body (12), said device comprising at least one dividing element (18), interposed between said rotatable gate valve (17) and said outlet opening (14), defining a first passageway (19) and a second passageway (20) of the comburant air isolated from one another, said first passageway (19) and said second passageway (20) being suitable for being placed in communication with respective distinct paths for the comburant air (B',C') foreseen in the heat generator (2), characterised in that said rotatable gate valve (17) comprises a support shaft (28) to which a laminar element (30) is associated, said laminar element (30) comprising a first portion (30a) and a second portion (30b) coplanar with one another and respectively suitable for selectively obstructing said first passageway (19) and said second passageway (20) by rotating said support shaft (28).
- The device according to claim 1, wherein said laminar element (30) comprises at least one elastically yieldable end appendage (33), foreseen along the end edge of said first portion (30a), suitable for sealingly abutting against one of the walls (21,22,23,24) of said box-shaped body (12) for at least one angular excursion of the rotation of said support shaft (28), within which said end appendage (33) is elastically deformed.
- The device according to claim 2, wherein the progressive rotation of said support shaft (28) is suitable for allowing the gradual release of the deformation of said end appendage (33), so that said end appendage (33) is kept in sealed contact with said wall (21,22,23,24) of said box-shaped body (12) within said angular excursion of said support shaft (28), in said angular excursion said first passageway (19) being completely obstructed.
- The device according to claim 2 or 3, wherein said laminar element (30) is folded back on itself so as to define two matching edges (34) that lock between them said elastically yieldable end appendage (33).
- The device according to claim 4, wherein said end appendage (33) comprises a tubular portion (35) and a laminar portion (36), connected to said tubular portion (35), suitable for being locked between said matching edges (34).
- The device according to claim 5 wherein said laminar element (30) is locked on said end appendage (33) through screws (37) inserted in respective threaded holes (38).
- The device according to any one of the previous claims, wherein said support shaft (28) is fixed to said laminar element (30) along its longitudinal centre line, or along an axis parallel to said centre line, so as to obtain a non-symmetrical arrangement of said laminar element (30) with respect to said support shaft (28).
- The device according to any one of the previous claims, wherein said laminar element (30) comprises openings (39) suitable for the passage of the comburant air.
- The device according to any one of the previous claims, wherein said dividing element (18) has a laminar shape and comprises a first end edge (42) and a second opposite lateral edge (43) fixed to the side walls (23,24) of said box-shaped body (12).
- The device according to claim 9, wherein said dividing element (18) comprises a third end edge (44) placed in contact with said support shaft (28).
- The device according to claim 10, wherein said dividing element (18) comprises a fourth end edge (45) folded back over itself, opposite said third end edge (44), for joining said paths (B',C') for the comburant air.
- The device according to any one of the previous claims, comprising an actuation motor (40) having the outlet axis connected to said support shaft (28).
- A heat generator (2), of the type with solid fuel comprising a furnace (4), provided with a brazier (7) below which primary combustion air (B) is suitable for flowing, and a closing hatch (5) of said furnace (4), provided with a window (6) along the inner surface (6a) of which secondary combustion air (C) is suitable for flowing in order to clean said window (6), further comprising an adjusting device (1) according to any one of claims 1-12, said first passageway (19) communicating with the area of said furnace (4) arranged below said brazier (7), said second passageway (20) being placed in communication with said inner surface (6a) of said window (6).
- Generator according to claim 13, wherein said end appendage (33) defines, together with one of the inner walls (21,22,23,24) of said box-shaped body (12), the passage section of the primary comburant air (B).
- Generator according to any one of claims 13, 14, comprising an inlet duct (11) for introducing the comburant air communicating with said inlet opening (13) of said adjusting device (1).
- Generator according to any one of claims 13-15, comprising a box-shaped joining element (46), comprising an inlet port (47) of the comburant air communicating with said outlet opening (14) of said box-shaped body (12), first outlet ports (48) communicating with said first passageway (19), and second outlet ports (49) communicating with said second passageway (20).
- Generator according to claim 16, wherein said joining element (46) comprises inside it a separation wall (50), abutting against said dividing element (18) and suitable for defining the initial sections of the path (B') for the primary comburant air (B) and of the path (C') for the secondary comburant air (C).
- Generator according to claim 17, wherein said separation wall (50) divides said inlet entrance (47) in two portions corresponding to said first passageway (19) and said second passageway (20), respectively.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201530421T SI3108182T1 (en) | 2014-02-17 | 2015-02-17 | Adjusting device for heat generators |
HRP20181516TT HRP20181516T1 (en) | 2014-02-17 | 2018-09-25 | Adjusting device for heat generators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITVR20140040 | 2014-02-17 | ||
PCT/IB2015/051163 WO2015121849A1 (en) | 2014-02-17 | 2015-02-17 | Adjusting device for heat generators |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3108182A1 EP3108182A1 (en) | 2016-12-28 |
EP3108182B1 true EP3108182B1 (en) | 2018-07-25 |
Family
ID=50349811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15711847.2A Active EP3108182B1 (en) | 2014-02-17 | 2015-02-17 | Adjusting device for heat generators |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3108182B1 (en) |
ES (1) | ES2690249T3 (en) |
HR (1) | HRP20181516T1 (en) |
SI (1) | SI3108182T1 (en) |
WO (1) | WO2015121849A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT399766B (en) * | 1987-09-30 | 1995-07-25 | Riener Karl | TRAIN CONTROL DEVICE |
FI4799U1 (en) * | 2000-11-14 | 2001-01-17 | Sammet Dampers Oy | Damper for smoke and air ducts |
DE20105218U1 (en) * | 2001-03-24 | 2001-08-23 | Aami Wagner Gmbh & Co Kg | Air control device (II) |
DE102006011251B4 (en) * | 2006-03-10 | 2008-07-24 | Karl Stefan Riener | Zuluftsteuervorrichtung |
EP2318766A2 (en) * | 2008-07-23 | 2011-05-11 | First Energy Private Limited | Biomass stove apparatus and method for its use |
DE102011108557A1 (en) * | 2011-07-26 | 2013-01-31 | Sht Heiztechnik Aus Salzburg Gmbh | SUPPLY OF A HEATING EQUIPMENT |
-
2015
- 2015-02-17 EP EP15711847.2A patent/EP3108182B1/en active Active
- 2015-02-17 SI SI201530421T patent/SI3108182T1/en unknown
- 2015-02-17 WO PCT/IB2015/051163 patent/WO2015121849A1/en active Application Filing
- 2015-02-17 ES ES15711847.2T patent/ES2690249T3/en active Active
-
2018
- 2018-09-25 HR HRP20181516TT patent/HRP20181516T1/en unknown
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Also Published As
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EP3108182A1 (en) | 2016-12-28 |
SI3108182T1 (en) | 2018-11-30 |
ES2690249T3 (en) | 2018-11-20 |
HRP20181516T1 (en) | 2018-11-30 |
WO2015121849A1 (en) | 2015-08-20 |
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