EP1377779A1 - Spirit stove - Google Patents
Spirit stoveInfo
- Publication number
- EP1377779A1 EP1377779A1 EP02730146A EP02730146A EP1377779A1 EP 1377779 A1 EP1377779 A1 EP 1377779A1 EP 02730146 A EP02730146 A EP 02730146A EP 02730146 A EP02730146 A EP 02730146A EP 1377779 A1 EP1377779 A1 EP 1377779A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel container
- stove according
- frame
- opening
- fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C5/00—Stoves or ranges for liquid fuels
- F24C5/02—Stoves or ranges for liquid fuels with evaporation burners, e.g. dish type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D3/00—Burners using capillary action
- F23D3/40—Burners using capillary action the capillary action taking place in one or more rigid porous bodies
Definitions
- Spirit stoves for burning of ethanol or methanol mixtures without pressure are previously known.
- a common principle for these apparatus is that the fuel is stored in a container which is filled with a porous mass absorbing the fuel.
- the container is provided with an opening which faces upwards and from which the fuel evaporates when being burned and a support for cooking utensiles is placed above the opening.
- a more elaborate embodiment of a spirit stove of said type is described in EP 29425.
- This stove is provided with a box shaped, double base part enclosing a fuel container and a burner, the burner being provided with a vertical burning tube which is placed above the opening of the fuel container, in order to increase the burning condition and hence the efficiency of the stove.
- the stove is also provided with means for controlling the size of the flame.
- the design of known spirit stoves is simplified by using a cup-like housing up side down instead of a box-like housing having a lid at the upper side.
- This simple measure enables a very easy production of the stove with only few parts as well as a simple handling, in particular during charging of the stove with the fuel containers.
- Due to the bottom-less design the stove has namely to be turned upside down during charging with the fuel containers. This leads to the additional advantageous effect that fuel which cannot be kept by the fuel absorbing mass is leaving the fuel container. Hence, this surplus fuel which might cause problems during burning is automatically removed during charging.
- the simple design of the housing or frame, respectively also enables the provision of simple means to acliieve good burning or handling properties, for example a simple and efficient construction of an extinguishing plate, the provision of a channel for conducting combustion air around the fuel containers in order to cool them, a proper design of the flame spreader and the cooking utensil support. Therefore, in particular the combination of all these measures leads to an improved stove which is claimed herein.
- Fig. 1 shows a top plan view of the spirit stove in question
- Fig. 2 shows a corresponding plan view of the bottom side
- Fig. 3 is a section along the line ⁇ i-III in Fig. 1
- Fig. 4 in a larger scale shows a section through the stove and the fuel container but with another type of cooking utensil support
- Fig. 5 is a perspective view of another embodiment of the present invention
- Fig. 6 shows details of still a further cooking utensil support
- Fig. 7 discloses details of the extinguishing plate used in the embodiment of Fig. 5.
- Fig. 8 represents details of the flame spreader of the embodiment of Fig.5.
- the device according to the invention shown in Fig. 1-4 comprises a box shaped, bottomless frame 10.
- This frame is manufactured in one piece preferably by deep drawing and consists of for instance stainless steel in order to withstand corrosion as far as possible.
- the frame rests at its lower part on an outwardly flanged foot portion 11 and has a surrounding mainly vertical wall 12 continuing into a horizontal hob 13, the hob comprising an uprising edge portion 14 and a bottom portion 15 placed inside it.
- the side portions of the vertical wall 12 has several small openings 12a through which combustion air flows into the frame.
- the bottom portion 15 continues into two step shaped circular uprising parts, each being provided with a first anullar step 16 and a second central terrace 17.
- the annular step 16 has several comparatively small perforations 18 for limiting the heat transmission between the central terrace 17 and the other parts of the frame, whereas the central terrace 17 has several circular openings 19 forming a flame spreader for a burner 20 placed under the hob.
- the embodiment shown is a two flame spirit stove, but the invention is of course intended to be used also at stoves having one or more than two flames.
- the frame 10 encloses a mainly U-shaped up-side-down heat protecting plate 21 that is fixed at the foot portion 11 and that partly surrounds two cylindrical or rectangular fuel containers 22. It should in this connection be mentioned that even if the embodiment shown comprises two cylindrical fuel containers it can be replaced by one single fuel container having a suitable shape.
- the heat protecting plate 21 that prevents heat radiation from the hob 13 to reach the fuel container 22 (which could cause the fuel to boil in the fuel container) extends along the major part of the length direction of the frame and has two circular openings 23 that are arranged coaxially with respect to the central terraces 17 and that surround an annular edge portion 24 of each fuel container 22 extending up through the open- ing 23, the edge portion 24 surrounding a central opening 25 of the fuel container.
- Each fuel container 22 is guided towards the opening 23 by means of several guides 26 punched out of the heat protecting plate these guides being somewhat inclined with respect to a vertical plane.
- Each fuel container 22 is supported by and is locked to the frame 10 by means of two locking plates 27 turnably arranged about vertically arranged shafts 28, the locking plates to a certain degree being flexibly arranged in the vertical direction by means of a spring washer 29 or the like.
- the locking plates 27 are kept in their locking positions by means of shoulders 30 arranged at the lower part 31 of the heat protecting plate.
- the heat protecting plate also supports two vertical burner tubes 32, each burner tube being connected to an annular foot plate 33 having several downwardly directed distance means 34 which are fixed close to the peripheries of the openings 23. Further the heat protecting plate 21 supports two arms 35 which are turnably secured about vertical shafts 36, one end of the arms 35 extending through slots 37 arranged in the vertical wall 12 of the frame, whereas the other end of the arms extend between two of the distance means 34 and each support an extinguishing plate 38.
- the extinguishing plate 38 is circular and arranged to uncover or completely or partly cover the opening 25 of the fuel container 22 by manually controlling the arm 35 from the outside of the frame.
- the extinguishing plate operates such that it to a lager or a smaller extent, depending on its position, prevents the heat radiation from the flame to reach the opening 25 and hence the surface where the fuel evaporates, which means that the size of the flame is a direct function of the uncovered surface, which means that the size of the flame can easily be controlled.
- the heat protecting plate 21 forms together with the frame 10 a channel 64 between the parallel side walls of the length side.
- the channel 64 comprises inlet openings 12a, 65 which allow combustion air to be fed to the channel 64 leading the air towards the burner 20.
- the inlet openings 12a, 65 are disposed in the side walls of the frame as well as of the heat protecting plate 21.
- the inlet openings 65 arranged at the side walls of the heat protecting plate 21 causes the air to flow around the fuel container, thereby cooling the same in order to prevent heating-up and causing boiling of the fuel due to the heat of the flame.
- the embodiment shown in Fig. 3 comprises only inlet openings at the side walls, it is evident that the openings may also be provided for in the bottom of the channel 64.
- the fuel container 22 comprises a circular container with a bottom 39, a side wall part 40 and an upper wall part 41, the upper wall surrounding the opening 25 of the fuel container and continuing into the annular shaped edge portion 24.
- the bottom 39 has a central inwardly extending depression 42 whereas the upper wall part 41 has a peripheral flange-like upwardly extending, edge portion 43 connecting the upper wall part 41 with the side wall part 40.
- the fuel container 22 encloses a porous, liquid absorbing mass having a central, cylindrical part 44 and an annular part 45 arranged outside it, the mass being partly covered by a net 46 preventing the mass from falling out from the opening and which is drawn in under the upper wall part 41.
- the depression 42 When the fuel container is assembled the depression 42 will press the central part upwards with respect to the annular part 45 such that the central part 44 will abut the net 46 which means that an evaporation surface will be created for the fuel in the fuel container in association with the upper part of the fuel container.
- the net 46 is clamped between the fuel absorbing mass and the upper wall part 41 comprising notches 73 to form a path for escaping alcohol vapour and liquid alcohol when filling.
- Each cooking utensil support 47 comprises four strip shaped sections 48 that are fixed to one another to an annular structure with a tube shaped circular wind protecting surface 49, several inwardly directed parts 50 and several outwardly extending parts 51, the outwardly extending parts having a vertical extension which is larger than the extension of the wind protecting part such that a lower opening 52 is formed between the bottom portion 15 of the hob 13 and the wind protecting part 49 and an upper opening 53 between the wind protecting part 49 and a cooking utensil placed an the cooking utensil support 47.
- the cooking utensil support 47 comprises four radially directed plates 54 having a step shaped lower edge part 55 adapted to the shape of the hob 13, the plates being fixed to a ring 56 surrounding the central terrace.
- Fig. 5 shows the design of the frame 10 of the stove having ventilation openings 12a at all side walls.
- the fire place parts comprise different flame spreader 60 and still another embodiment of the cooking utensil support 47.
- the frame 10 of this stove is formed to allow stacking of the frames 10 for transport.
- the side walls 12 of the frame 10 have at least partially a conical shape.
- the cooking utensil support 47 consists of three segments 67 to 69 of circle, the ends 70 of which being bent inwards so as to direct radially to the middle of the circle.
- the segments 67 to 69 are fixed to each other by welding, in particular spot welding of the segment ends 70.
- the segments are formed of perforated sheet metal so as to allow air flowing to the flame, while preventing wind from disturbing the burning process.
- Fig. 7 shows a detail of the extinguishing plate 38 used in the embodiment represented in Fig.5.
- the extinguishing plate 38 comrises a W-shaped annular edge area 71 which improves closing of the opening of the fuel container or the heat protecting plate, respectively, since this structure of the edge area 71 allows a tight closing due to resilient restraint.
- the flame spreader 60 of the embodiment of Fig. 5 is shown in more detail in Fig. 8 a) to c), wherein Fig. 8 a) is a perspective view, Fig. 8 b) is a side view and Fig. 8 c) is a plan view.
- the flame spreader 60 comprises a U- or ⁇ -shaped strip for securing to the hob 13 of the frame 10.
- the spirit stove operates and is used in the following manner.
- the spirit stove with the fuel container is turned up side down after which the fuel container is removed and filled with fuel, preferably methanol, by holding it in an inclined position after which the fuel is poured through the opening 25 until the fuel reaches the lower part of the opening 25 where it will be visible when the available mass by capillary forces has sucked up a maximal amount of fuel.
- the container is then turned up side down (the fuel being kept within the container by said capillary forces) and is inserted from the bottom side of the frame whereby it is directed by the guides 26 such that the edge portion will be inserted through the opening 23 in the heat protecting plate 21.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0101285A SE523105C2 (en) | 2001-04-11 | 2001-04-11 | Spirit stove |
SE0101285 | 2001-04-11 | ||
PCT/EP2002/004064 WO2002084175A1 (en) | 2001-04-11 | 2002-04-11 | Spirit stove |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1377779A1 true EP1377779A1 (en) | 2004-01-07 |
EP1377779B1 EP1377779B1 (en) | 2008-08-13 |
Family
ID=20283753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02730146A Expired - Lifetime EP1377779B1 (en) | 2001-04-11 | 2002-04-11 | Spirit stove |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1377779B1 (en) |
CN (1) | CN1242198C (en) |
AT (1) | ATE404818T1 (en) |
BR (1) | BR0204819B1 (en) |
DE (1) | DE60228219D1 (en) |
SE (1) | SE523105C2 (en) |
WO (1) | WO2002084175A1 (en) |
ZA (1) | ZA200209307B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD959195S1 (en) | 2020-09-03 | 2022-08-02 | Dometic Sweden Ab | Stove grate |
USD959902S1 (en) | 2020-09-03 | 2022-08-09 | Dometic Sweden Ab | Cooktop cover |
USD1009559S1 (en) | 2021-03-01 | 2024-01-02 | Dometic Sweden Ab | Cooking grate |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101677717B (en) * | 2006-11-17 | 2012-11-14 | 多米蒂克股份公司 | Stove |
SE531070C2 (en) * | 2007-07-20 | 2008-12-09 | Dometic Sweden Ab | Liquor kitchen and method of lighting an liquor kitchen |
ITBS20080047A1 (en) * | 2008-03-10 | 2009-09-11 | Fabio Bellini | COOKER |
EP2772704A1 (en) * | 2013-02-28 | 2014-09-03 | Dometic Holding AB | Cooling system |
CN103574681A (en) * | 2013-10-30 | 2014-02-12 | 昆山富凌灶具有限公司 | Small energy-saving furnace end with wind-prevention support with holes in one side |
CN103574599A (en) * | 2013-10-30 | 2014-02-12 | 昆山富凌灶具有限公司 | Large-diameter infrared energy saving furnace head with circular windproof bracket with holes |
CN103574679A (en) * | 2013-10-30 | 2014-02-12 | 昆山富凌灶具有限公司 | Small energy-saving furnace end with circular windproof bracket with holes |
CN103574689A (en) * | 2013-10-30 | 2014-02-12 | 昆山富凌灶具有限公司 | Heavy-caliber infrared ray energy-saving furnace end with wind-prevention support with holes in one side |
CN103574666A (en) * | 2013-10-30 | 2014-02-12 | 昆山富凌灶具有限公司 | Small energy-saving furnace end with windproof bracket with holes in two sides |
CN103574678A (en) * | 2013-10-30 | 2014-02-12 | 昆山富凌灶具有限公司 | Infrared ray energy-saving heavy-caliber burner with double-sided perforated wind-resistant support |
CN103822263A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Simple stove with waved windproof bracket, standing valve and two pipes |
CN103822241A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Wave perforated windproof bracket and double electronic ignition double-pipe cooker with standing valve |
CN103822264A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Stove with unilateral windproof bracket with holes and standing valve |
CN103836673A (en) * | 2014-03-13 | 2014-06-04 | 昆山富凌灶具有限公司 | Dual-tube simple energy-saving stove with unilateral wind-proof bracket and standing valves |
CN103822238A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Stove with unilateral windproof bracket with holes, standing valve and double electronic ignition devices |
CN103822242A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Stove with unilateral windproof bracket with holes, standing valve, double electronic ignition devices and double pipes |
CN103822239A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Dual electronic ignition cooker with waved perforated windproof supports on two sides and standing valve |
CN103836663A (en) * | 2014-03-13 | 2014-06-04 | 昆山富凌灶具有限公司 | Dual-tube energy-saving stove with bilateral wavy wind-proof brackets and standing valves |
CN103822255A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Double-electronic-ignition double-pipe cooker with round perforated windproof bracket and fixing valve |
CN103822240A (en) * | 2014-03-13 | 2014-05-28 | 昆山富凌灶具有限公司 | Dual electronic ignition and dual-pipe cooker with perforated windproof supports on two sides and standing valve |
CN103822244A (en) * | 2014-03-17 | 2014-05-28 | 昆山富凌灶具有限公司 | Simple double-pipe stove with fixed valve and windproof support with single-side holes |
CN103836671A (en) * | 2014-03-17 | 2014-06-04 | 昆山富凌灶具有限公司 | Double-pipe kitchen range with waved perforated windproof stent and standing valve |
CN103836669A (en) * | 2014-03-17 | 2014-06-04 | 昆山富凌灶具有限公司 | Simple energy-saving double-pipe kitchen range with double-side windproof stents and standing valve |
CN103836674A (en) * | 2014-03-17 | 2014-06-04 | 昆山富凌灶具有限公司 | Double-pipe kitchen range with double-side perforated windproof stents and standing valve |
CN103836670A (en) * | 2014-03-17 | 2014-06-04 | 昆山富凌灶具有限公司 | Kitchen range with circular perforated windproof stent and standing valve |
CN103836677A (en) * | 2014-03-17 | 2014-06-04 | 昆山富凌灶具有限公司 | Double-electronic-ignition kitchen range with circular perforated windproof stent and standing valve |
CN103836666A (en) * | 2014-03-17 | 2014-06-04 | 昆山富凌灶具有限公司 | Double-electronic-ignition kitchen range with waved perforated windproof stent and standing valve |
CN103822268A (en) * | 2014-03-17 | 2014-05-28 | 昆山富凌灶具有限公司 | Energy-saving stove with round windproof support and fixed valve |
CN103822247A (en) * | 2014-03-17 | 2014-05-28 | 昆山富凌灶具有限公司 | Simple double-pipe stove with round windproof support and fixed valve |
CN103822252A (en) * | 2014-03-17 | 2014-05-28 | 昆山富凌灶具有限公司 | Simple double-pipe energy-saving stove with round windproof support and fixed valve |
ES1117105Y (en) * | 2014-05-15 | 2015-02-04 | Vila Inox S L | HEATING FURNITURE FOR OUTDOOR OR INTERIOR SPACES |
WO2016068782A1 (en) | 2014-10-30 | 2016-05-06 | Cleancook Sweden Ab | Stove device |
CN104791850B (en) * | 2015-04-29 | 2017-05-24 | 郑丽萍 | Alcohol adding method for alcohol stove |
NO347498B1 (en) * | 2020-11-20 | 2023-11-27 | Abry & Kavanagh Design As | Improved stove |
CN112682776B (en) * | 2021-01-19 | 2022-04-05 | 广东海洋大学 | Laboratory alcohol burner convenient to control flame size |
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GB670964A (en) * | 1947-12-12 | 1952-04-30 | Franz Fischl | Improvements in or relating to portable heating apparatus |
FR1371002A (en) * | 1963-09-26 | 1964-08-28 | Stove or other device comprising a body of porous material capable of absorbing liquid fuel | |
WO1980001602A1 (en) * | 1979-01-29 | 1980-08-07 | Origoverken Ab | Apparatus for burning spirit or similar liquid fuels |
US4351316A (en) * | 1979-10-09 | 1982-09-28 | Walter Kroll | Combustion apparatus for burning waste oils |
WO1982000332A1 (en) * | 1980-07-11 | 1982-02-04 | K Boij | Apparatus for burning spirit or the like liquid fuel |
US4872833A (en) * | 1988-05-16 | 1989-10-10 | A. O. Smith Corporation | Gas burner construction |
SE500418C2 (en) * | 1989-12-12 | 1994-06-20 | Electrolux Ab | Liquor kitchen with hotplate |
GB9026903D0 (en) * | 1990-12-11 | 1991-01-30 | Couture Leonard | Table grill |
SE9703188D0 (en) * | 1997-09-04 | 1997-09-04 | Electrolux Ab | fUEL tANK |
US5979428A (en) * | 1998-12-31 | 1999-11-09 | Greene, Jr.; George J. | Wind guard attachment for portable gas cookers |
-
2001
- 2001-04-11 SE SE0101285A patent/SE523105C2/en not_active IP Right Cessation
-
2002
- 2002-04-11 AT AT02730146T patent/ATE404818T1/en not_active IP Right Cessation
- 2002-04-11 WO PCT/EP2002/004064 patent/WO2002084175A1/en active IP Right Grant
- 2002-04-11 BR BRPI0204819-1A patent/BR0204819B1/en not_active IP Right Cessation
- 2002-04-11 CN CN02801178.3A patent/CN1242198C/en not_active Expired - Fee Related
- 2002-04-11 DE DE60228219T patent/DE60228219D1/en not_active Expired - Lifetime
- 2002-04-11 EP EP02730146A patent/EP1377779B1/en not_active Expired - Lifetime
- 2002-11-15 ZA ZA200209307A patent/ZA200209307B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO02084175A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD959195S1 (en) | 2020-09-03 | 2022-08-02 | Dometic Sweden Ab | Stove grate |
USD959902S1 (en) | 2020-09-03 | 2022-08-09 | Dometic Sweden Ab | Cooktop cover |
USD978612S1 (en) | 2020-09-03 | 2023-02-21 | Dometic Sweden Ab | Cooktop cover |
USD1009559S1 (en) | 2021-03-01 | 2024-01-02 | Dometic Sweden Ab | Cooking grate |
Also Published As
Publication number | Publication date |
---|---|
CN1461395A (en) | 2003-12-10 |
ZA200209307B (en) | 2003-09-02 |
BR0204819B1 (en) | 2012-10-02 |
WO2002084175A1 (en) | 2002-10-24 |
CN1242198C (en) | 2006-02-15 |
BR0204819A (en) | 2004-02-03 |
EP1377779B1 (en) | 2008-08-13 |
SE0101285D0 (en) | 2001-04-11 |
SE0101285L (en) | 2002-10-12 |
ATE404818T1 (en) | 2008-08-15 |
SE523105C2 (en) | 2004-03-30 |
DE60228219D1 (en) | 2008-09-25 |
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