EP3928035A1 - Heat generator unit - Google Patents
Heat generator unitInfo
- Publication number
- EP3928035A1 EP3928035A1 EP19835496.1A EP19835496A EP3928035A1 EP 3928035 A1 EP3928035 A1 EP 3928035A1 EP 19835496 A EP19835496 A EP 19835496A EP 3928035 A1 EP3928035 A1 EP 3928035A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- unit according
- combustion chamber
- tank
- pin
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims description 37
- 230000004913 activation Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000009849 deactivation Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 239000008188 pellet Substances 0.000 abstract description 15
- 239000002023 wood Substances 0.000 abstract description 9
- 239000002828 fuel tank Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- 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
- F24B13/00—Details solely applicable to stoves or ranges burning solid fuels
- F24B13/004—Doors specially adapted for stoves or ranges
-
- 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
- F24B1/00—Stoves or ranges
- F24B1/02—Closed stoves
- F24B1/024—Closed stoves for pulverulent fuels
-
- 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
- F24B13/00—Details solely applicable to stoves or ranges burning solid fuels
- F24B13/04—Arrangements for feeding solid fuel, e.g. hoppers
Definitions
- the present invention relates to a heat generating unit, such as a stove, in particular fed with two fuels, for example wood and pellet.
- Heat generators that can be fed both with wood and pellet have been proposed, wherein the wood is manually inserted into the combustion chamber by opening a main wing, while pellet is loaded into a tank under the combustion chamber and automatically fed in the latter from this tank.
- This protection must extend under the equipment, laterally and frontally to the fuel loading wing or to the access wing to the combustion chamber.
- An object of the present invention is to provide a new heat generator or stove.
- Another object of the present invention is to provide a new heat generator, wherein the accidental falling of hot embers from a combustion chamber to an underlying fuel tank or vice versa is prevented.
- a heat generating unit according to claim 1 is provided.
- FIG. 1 and 2 are perspective views slightly from above and from respective sides of a generating unit according to the present invention
- FIG. 3 and 4 are perspective views of components of the generating unit of figure 1 with the second door unlocked and moved relative to a closed position;
- FIG. 8 and 9 are perspective views of components of the generating unit of figure 1 with the first door unlocked and moved relative to a closed position;
- FIG. 13 is a front view of the doors of the generating unit of figure 1;
- figure 14 is a cross-sectional view taken along line XIV-XIV of figure
- a heat generating unit or stove 1 comprising a main frame 2 defining at least one combustion chamber 3, which generating unit 1 is advantageously arranged to be fed, preferably during different work cycles, with at least two different fuels, for example wood and pellet.
- a brazier for the positioning and combustion of the fuel or fuels can clearly also be provided.
- the unit 1 further comprises at least a first door or wing 4 for closing/opening a main window 5 for accessing to the combustion chamber 3, through which main window 5 a first fuel can be positioned in the combustion chamber 3, for example wood, in logs if desired.
- the main window 5 is defined by the frame 2, in particular on a face, if desired on a front face of the generating unit 1.
- the main window 5 may have a rectangular, square, circular or another type configuration, for example.
- the frame 2 can have a framework portion 2a for delimiting the main window 5.
- the first door 4 is constrained, for example pivoted to the frame 2, if desired around a vertical, in use, axis. More particularly, the first door 4 can be pivoted at one of its edges to the frame 2, in particular at one corner, if desired, a front comer thereof.
- the first door 4 can have a glass or a double-glazing unit 4a fitted in the main body of the door, designed to allow inspection of the combustion chamber 3. If desired, the first door 4 is also provided with an opening handle OH.
- the first door 4 could comprise the main plate 4b with a raised portion 4c extending therefrom, which raised portion 4c may have a square, rectangular or circular-plan tubular configuration designed to be inserted, substantially to size within the framework portion 2a and therefore within the main window 5 for sealingly closing (if desired by means of a suitable gasket) the latter, while the main plate 4b in this closed position abuts against the framework portion 2a.
- the unit includes at least one tank 6 for containing the first fuel or a second fuel, for example pellet, as well as at least one second door or wing 7 for closing/opening an access and loading opening 8 of the containment tank 6 with the first or second fuel.
- the containment tank 6 can be delimited by the frame 2 or better by walls of the frame 2 or it can be produced separately and then introduced into the main frame 2 and constrained to or bolted on it.
- the containment tank 6 can be in position below or above the combustion chamber 3. In particular, according to the embodiment shown in the figures, the tank 6 is below or in a lower position than the combustion chamber 3.
- the access and loading opening 8 is defined by the frame 2, preferably on the same face, the front one if desired, of the generating unit 1 on which the main window 5 is defined. This means that the opening 8 is below the main window 5.
- the second door 7 is constrained below the first door 4.
- the second door 7 is constrained to the frame 2, for example pivoted, if desired, around a horizontal, in use, axis.
- the second door 7 can be pivoted or constrained angularly movable to the frame 2 so as to be movable between a first closing trim of the containment tank 6, if desired close to the frame 2, in which the second door 7 can have, for example a substantially vertical trim and a second opening trim of the respective tank 6.
- tank 6 is below the combustion chamber 3, then when the second door 7 is in the second trim, it is possible to access the tank 6 from above and at least partly from the sides, if desired.
- the unit 1 can comprise support and pivoting means 14 of the second door 7.
- the support and pivoting means 14 comprise a first rod element 14a, which can have a main section 14al pivoted, for example by means of first brackets 15a, to the frame 2, if desired around a horizontal axis, and two end sections 14a2 with end rotatably fitted in a respective section of the second door 7.
- a second rod element 14b can then be provided beneath the first rod element 14a and designed to support the second door 7 when it is in the closed position.
- the second rod element 14b can have a main section 14b 1 pivoted, for example by means of second brackets 15b, to the frame 2, if desired around a horizontal axis, and two end sections 14b2 with ends, for example L-shaped ends, fixed in a respective section of the second door 7, for example at an edge, which is lower and external with respect to the unit 1, when the second door is in the closed position.
- the second door 7 can be configured as a plate 7a with L-bent edges, in particular at the sides thereof.
- the second door 7 can also have a grip handle component 7b in one piece or less with the plate 7a.
- the grip component 7b is pivoted to the plate 7a around a horizontal axis and is angularly movable with respect to the plate 7a.
- the grip component 7b can also have flanks 7c wrapping the plate 7a edges.
- the flanks 7c of the grip component can have one or more shaped grooves or slots or eyelets 7d whose delimiting edge is designated to abut against a respective pin or pins 7e rising laterally from the plate 7a.
- the unit 1 also includes means for feeding a comburent fluid, for example air, into the combustion chamber 3.
- a comburent fluid for example air
- Such feeding means can comprise specific ducts leading into the combustion chamber 3 as well as means for pushing or the like the comburent fluid, for example one or more fans.
- a duct or chimney 16 for transporting the exhaust or combustion gases or fumes from the combustion chamber 3 towards the outside or towards a suitable discharge area is provided, as well as any refractory arranged behind and/or on the flanks of the combustion chamber 3.
- the generating unit 1 comprises locking/unlocking means 10 both of the first door 4 and of the second door 7, which locking/unlocking means 10 are movable or switchable between a first operating position and a second operating position.
- first the first operating position in the same (figures 8 to 12) the first door 4 is unlocked and therefore it is possible to move it (for example angularly around a vertical axis) with respect to the frame 2 to open the main window 5 to allow access to the combustion chamber 3, while the second door 7 is locked in the closed position of the access and loading opening 8 and cannot be moved from this latter position.
- the second door 7 is unlocked and therefore it is possible to move it with respect to the frame 2 and to the tank 6 (for example angularly around a horizontal axis) to open the access and loading opening 8 so as to allow access to the tank 6, while the first door 4 is locked in the closed position of the main window 5 and it is not possible to move it from the latter.
- the locking/unlocking means 10 comprise at least one pin or plug or pawl 11a, l ib as well as means for moving the pin(s) 11a, l ib between the first and second positions, in the first position the pin 11a interferes with the second door 7 or with a portion thereof, while in the second position the pin 1 lb interferes with the first door 4 or with a portion thereof.
- the pin 1 lb can also interfere with a portion of the frame 2 and/or in the first position the pin 11a can interfere with another portion of the frame 2.
- the movement means can comprise at least one electromagnet 12, in particular tubular or defining an axial light, as well as electronic feeding means 12a of the electromagnet designated to determine the activation or deactivation of the latter and therefore whether the at least one pin 1 la, 1 lb is attracted or not, so as to move it from the first to the second position or vice versa.
- the electromagnet 12 comprises a casing element, and then a stem element 11c is provided defining the pins or plugs or pawls 11a, l ib at the respective ends, which stem element 11c, if desired realized in a ferromagnetic material, is slidably mounted within the electromagnet 12.
- the stem element 11c can have a vertical main axis, while the pins 11a and 1 lb can constitute the upper and lower, respectively, ends of the stem element 11c.
- the locking/unlocking means 10 or, if provided, the electronic feeding means 12a could be activated by pressing (for a few seconds, for example 2-3 seconds) a button on the generating unit 1 display, or by means of a radio control and in this case, the stem element 11c, once the electromagnet 12 is electronically powered, for example at 12V, would be attracted by the magnetic field thus generated and then lifted or lowered so that a pin 11a or l ib interferes with the first 4 or second 7 door or with a part thereof (as well, if desired, with respective parts of the frame 2), preventing the opening of the latter and unlocking instead the opening of the other door 7 or 4.
- the electromagnet 12 can be electronically powered by means of a cable 12a or even with Wi-Fi or with another suitable mode.
- the latter can delimit at least one first hole or slot 4d for inserting/releasing a pin l ib, higher if desired.
- the first hole or slot 4d is delimited at a bottom portion of the first door 4.
- the locking/unlocking means 10 can be constrained to the frame 2.
- the locking/unlocking means 10 comprise an electromagnet 12
- the same or the respective casing element could be fixed, for example welded, bolted, fitted within a component of the frame 2, if desired to the framework portion 2a of the same.
- the latter or rather a respective portion or shaped sheet 4e constrained to the plate 4b can delimit at least one first hole or slot 4d for inserting/releasing a pin 1 lb, if desired a higher pin.
- the frame 2 can instead delimit at least one second hole or slot 2b, if desired at the respective framework portion 2a for delimiting the main window 5 and in the second operating position, the or each first hole or slot 4d is aligned with a/the respective second hole or slot 2b, so that it is possible to insert a respective second pin l ib in these aligned holes and thus lock the first door 4 in position with respect to the frame 2.
- the electromagnet 12 is mounted under the framework portion 2a with a respective second pin 1 lb always inserted within the second hole or slot 2b, both in the first and in the second operating position.
- the locking/unlocking means 10 are moved to the second operating position, with the first door 4 in the closed position, that is to say with respective raised portion 4c within the framework portion 2a and therefore within the main window 5, then the second pin l ib is moved (for example lifted) so as to insert it also in the first hole or slot 4d, thereby locking the first door 4 in position.
- the latter can delimit a third hole or slot 7g for inserting/releasing a pin 11a, if desired lower.
- the second door 7 can have a wing- shaped section 7f extending from one side of the second door 7, if desired from an upper portion thereof, which wing-shaped section 7f is suitably shaped or bent, if desired U-shaped, so as to delimit the third hole or slot 7g for inserting/releasing a pin 11a, if desired lower.
- the third hole or slot 7g can lead upwards and downwards, for example.
- the first pin 11a is moved (for example lowered) so as to be inserted in the third hole or slot 7g, thus locking the second door 7 in the closed position, preventing its opening as long as the locking/unlocking means 10 are not moved from the first operating position to the second operating position or to a possible intermediate position, for example.
- the electromagnet 12 could also be mounted in a different manner, if desired, with a first pin 11a always mounted (both in the first and in the second operating position) in a hole of the frame 2, (similarly to what is now described for the second pin l ib), and the second pin l ib mounted as described above for the first pin 11a.
- the unit 1 can then comprise at least one position sensor designed to detect whether the first door 4 and/or the second door 7 is opened or closed.
- a solution could be provided wherein the stem element 11c is in a rest position in a lowered condition, in interference with or locking (for example as indicated above) the second door 7 and such that once the electromagnet 12 is driven, that is to say once the electrical communication between an electric source and the electromagnet 12 is activated (by pressing a button or by means of a radio control), lifting of the stem element 11c is determined by electromagnetic attraction and therefore the opening of the second door 7 of the tank 6, so that it is possible to open the second door 7 and load the tank 6 with a second fuel, such as pellet.
- a second fuel such as pellet
- the respective pin l ib physically interferes with the first door 4, inserting itself, for example, in a first hole or slot 4d, thereby locking and preventing the first door 4 from being opened.
- the electromagnet feeding could be interrupted, if desired incorporating a solenoid, following for example pressure by the second door 7 of a position sensor, such as a microswitch designated to check its position and accordingly inform a control unit.
- a position sensor such as a microswitch designated to check its position and accordingly inform a control unit.
- a position sensor such as a microswitch can ascertain the opening thereof and inhibit the possibility of activating the locking/unlocking means 10, for example the electromagnet.
- the first operating position and the second operating position are preferably the only operating positions wherein the locking/unlocking means 10 can be positioned, although it is possible according to a variant that the same also present other operating positions, such as a simultaneous locking position of both doors 4, 7 and/or a simultaneous unlocking position of both doors 4, 7.
- locking/unlocking means 10 can be provided, other than those illustrated above, which can be mechanically or electronically driven if desired.
- the generating unit 1 is also provided with at least one feed duct 13 for the second fuel from the tank 6 to the combustion chamber 3 as well as automatic conveying means, such as a screw or similar, of the second fuel along the feed duct 13 up to the combustion chamber 3.
- the unit also comprises one or more driving motors, for example conveying means, as well as a control unit.
- the unit can then be equipped with one or more probes for the exhaust gas temperature, based on which value(s), the control unit could decide to switch the operation of the stove from wood to pellet, suitably driving the locking/unlocking means and automatically loading the pellet from the tank 6 to the combustion chamber 3 or vice versa.
- the locking/unlocking means 10 would perform a fire risk limiting function for the tank 6, which is preferably under the combustion chamber 3.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
- Central Heating Systems (AREA)
- Carbon And Carbon Compounds (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102019000002363A IT201900002363A1 (en) | 2019-02-18 | 2019-02-18 | HEAT GENERATOR GROUP |
PCT/IB2019/060710 WO2020170024A1 (en) | 2019-02-18 | 2019-12-12 | Heat generator unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3928035A1 true EP3928035A1 (en) | 2021-12-29 |
Family
ID=66867634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19835496.1A Pending EP3928035A1 (en) | 2019-02-18 | 2019-12-12 | Heat generator unit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3928035A1 (en) |
IT (1) | IT201900002363A1 (en) |
WO (1) | WO2020170024A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9400216U1 (en) * | 1994-01-07 | 1994-03-10 | Hase Kaminofenbau Gmbh | Locking device for a firebox door of a stove or the like. |
JP4282058B2 (en) * | 2002-12-13 | 2009-06-17 | サンポット株式会社 | Ignition method for wood pellet fuel combustion system |
ITVI20040252A1 (en) * | 2004-10-22 | 2005-01-22 | Lorenzo Verlato | FIREPLACE INSERT STOVE WITH FUEL LOADING THROUGH A FRONT SLIDE |
ITVI20080012A1 (en) * | 2008-01-23 | 2009-07-24 | Nordica Spa | HEATING UNIT ON SOLID FUEL WITH HIGH SAFETY. |
FR2947327B1 (en) * | 2009-06-24 | 2012-12-07 | Supra | FEEDING SYSTEM FOR FRAGMENT SOLID FUEL HEATING APPARATUS |
CN103851652A (en) * | 2012-12-07 | 2014-06-11 | 湖北宜昌五峰鑫星节能炉具开发有限公司 | Dual-door fuel adding device |
DE202017002558U1 (en) * | 2017-05-12 | 2017-08-10 | Rudi Biller | Woodburning stove with panoramic lifting and swinging door, with tinted sight glass, a closable ash pan and a firewood transport container |
US10995945B2 (en) * | 2017-08-10 | 2021-05-04 | United States Stove Company | Biomass pellet combustion system |
-
2019
- 2019-02-18 IT IT102019000002363A patent/IT201900002363A1/en unknown
- 2019-12-12 EP EP19835496.1A patent/EP3928035A1/en active Pending
- 2019-12-12 WO PCT/IB2019/060710 patent/WO2020170024A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT201900002363A1 (en) | 2020-08-18 |
WO2020170024A1 (en) | 2020-08-27 |
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