WO2022128223A1 - Ausgleichsbaugruppe und warmwasserspeicher - Google Patents
Ausgleichsbaugruppe und warmwasserspeicher Download PDFInfo
- Publication number
- WO2022128223A1 WO2022128223A1 PCT/EP2021/079974 EP2021079974W WO2022128223A1 WO 2022128223 A1 WO2022128223 A1 WO 2022128223A1 EP 2021079974 W EP2021079974 W EP 2021079974W WO 2022128223 A1 WO2022128223 A1 WO 2022128223A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tank
- compensating
- shell
- assembly
- hot water
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 238000009423 ventilation Methods 0.000 claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 26
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000008961 swelling Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000015654 memory Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0089—Additional heating means, e.g. electric heated buffer tanks or electric continuous flow heaters, located close to the consumer, e.g. directly before the water taps in bathrooms, in domestic hot water lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/08—Arrangements for drainage, venting or aerating
- F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
- F24D19/083—Venting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/08—Storage tanks
Definitions
- the present invention relates to a balancing assembly and an associated hot water tank.
- a hot water tank known from EP 2 827 077 comprises a water tank for holding water to be heated, and an inelastic expansion tank for holding a quantity of water that is in a fitting connected to the outlet when the tap is stopped, and for holding a quantity of water that corresponds to an expansion quantity when heating the cold water in the water tank.
- the expansion tank is hermetically sealed with respect to the outside environment of the hot water storage tank and is in fluid communication with an inlet-side water jet pump in such a way that the water jet pump enables a negative pressure to be generated in the expansion tank.
- hermetic expansion tanks of this type have various disadvantages, for example safe and reliable emptying of the expansion tank is difficult.
- the object is achieved by a compensating assembly for use in a hot water device, in particular in a hot water tank for domestic use, wherein the hot water device has a water tank for receiving water to be heated, wherein the compensating assembly comprises a compensating tank and a ventilation component, wherein the ventilation component enables an exchange of air between the compensating tank and the atmosphere.
- the ventilation component has a blocking element, in particular a swelling disk and/or a ball valve, the blocking element being designed to prevent water from escaping from the expansion tank via the ventilation component.
- the ventilation component or ventilation assembly can be used to reliably prevent a damaging negative pressure from occurring in the expansion tank.
- the blocking element can block the water from escaping. Although this impedes the anti-drip function in particular, the dripping fitting also gives the user a sign that the hot water tank is not working optimally. In this way, the user can quickly identify the error.
- the ventilation component preferably has a sealing unit designed as a valve, and when the expansion tank is full, an opening between the ventilation component and the expansion tank is sealed by the sealing unit, in particular containing a ball that floats onto a sealing element, so that the expansion tank is prevented from overflowing.
- the blocking element for example the swelling disk, will only block in a case in which water escapes despite the presence of the sealing unit.
- Both the sealing unit designed as a valve and another blocking element are independently suitable for preventing water from escaping from the expansion tank.
- the combination of both measures, i.e. in particular the sealing unit and swelling disk, means a particularly preferred embodiment which prevents water from escaping even if the sealing unit fails.
- the sealing unit has a ball and a vertical guide for guiding the ball towards and away from the sealing element.
- the sphere has a density less than water to float on the water.
- the sphere particularly preferably has the lowest possible density, for example it is designed as a hollow sphere.
- the expansion tank preferably comprises a lower expansion tank half-shell and an upper expansion tank half-shell, the lower expansion tank half-shell having a coupling section for coupling to the water tank of the hot water tank and the upper expansion tank half-shell being designed for coupling to a cold water supply line.
- the compensating assembly is designed for direct mounting on the water tank or reservoir. This eliminates an additional coupling piece, which means that the number of parts can be reduced.
- the compensating assembly is made from two container half-shells that are preferably produced by injection molding.
- a receptacle for an emptying component in particular for a nozzle of a water jet pump, is preferably integrated in the lower and/or the upper expansion tank half-shell, with the nozzle being formed between the connected expansion tank half-shells.
- the drain component enables the water jet of the water flowing into the hot water tank to create a negative pressure in the expansion tank, which then leads to the contents of the expansion tank being emptied into the hot water tank.
- the upper expansion tank half-shell and the lower expansion tank half-shell each have a circumferential friction-weld edge for producing a vibration friction-welded connection of the upper expansion tank half-shell and the lower expansion tank half-shell.
- the invention enables a further simplification and reduction in the number of components through the functional integration of the receptacle for the emptying component in the expansion tank.
- the compensating assembly also includes a drain component, the drain component having a nozzle of a water jet pump, in particular a Venturi nozzle, for sucking off compensating water from the compensating tank.
- the nozzle preferably has a cross-sectional contour that tapers in the shape of a parabola. This cross-sectional contour causes a linearly decreasing cross-sectional area. This increases the flow rate inside the Venturi nozzle with a particularly low pressure loss.
- the nozzle preferably has a material that differs from the material of the expansion tank, in particular brass and/or bronze.
- Brass and bronze exhibit particularly advantageous resistance to cavitation.
- the nozzle can be integrally formed in the expansion tank, in particular the upper expansion tank half-shell or the lower expansion tank half-shell. In other words, the nozzle is then formed onto the corresponding half-shell of the container.
- the expansion tank in particular the upper expansion tank half-shell and the lower expansion tank half-shell, is preferably designed as easily removable plastic components.
- easily deformable is to be understood in particular as meaning that the number of undercuts and the complexity of the components are kept as low as possible.
- An opening between the drain component and the expansion tank is preferably sealed off by a sealing unit, in particular containing a ball that rests on a sealing element, when the expansion tank is emptied, so that a negative pressure in the expansion tank is prevented.
- the sealing unit has a ball and a vertical guide for guiding the ball towards and away from the sealing element.
- the opening between the emptying component and the expansion tank and the opening between the ventilation component, ie the expansion tank and the atmosphere, are particularly preferably sealed by a sealing unit having identical components. A reduction in the use of different components can thus be achieved.
- a hot water storage tank in particular for domestic use, comprising a storage tank, a cold water inlet for connection to a water supply network, a hot water outlet for providing hot water to a fitting that can be connected thereto, and a compensating assembly according to the invention.
- the hot water tank according to the invention can be combined with all of the embodiments of the compensating assembly described as preferred, while achieving the same advantages.
- Fig. 1 schematically and as an example a hot water tank
- Fig. 2 schematically and as an example the hot water tank without housing
- FIG. 3 schematically and as an example the hot water tank of Fig. 2 in cross section
- Fig. 4 shows a schematic and exemplary detailed view of the hot water storage tank
- Fig. 5 shows a schematic and exemplary sectional view of the hot water storage tank
- Fig. 6 shows a schematic and exemplary sectional view of the hot water storage tank
- 7 shows a schematic and exemplary sectional view of the hot water storage tank
- Fig. 8 shows a schematic and exemplary sectional view of the hot water storage tank
- Fig. 11 shows a schematic and exemplary sectional view of the hot water storage tank
- Fig. 12 is a schematic and exemplary sectional view of the hot water tank.
- Fig. 1 shows a hot water tank 1 in perspective view.
- the actual memory is arranged within a housing composed of two housing half-shells 2, 3 and is surrounded by thermal insulation.
- the storage tank contains drinking water that is usually heated to a desired temperature with an electric heating element in order to be made available as hot water at a tap.
- a control element 4 is arranged on the front, with which, for example, the temperature of the water in the reservoir can be adjusted.
- the hot water tank 1 has a cold water connection 6 and a hot water connection 8 on its upper side. Cold water is fed into the storage tank via the cold water connection 6 and the heated water reaches the tap via the hot water connection 8 .
- the hot water storage tank 1 is usually operated without pressure, which means that only atmospheric pressure prevails inside the storage tank, but not the usual line pressure of a water pipe.
- a dispensing process is thus initiated by opening a valve or the like in the pipe section connected to the cold water connection 6 . Due to an overpressure then prevailing at the cold water connection 6, this presses incoming cold water the heated water out of the hot water connection 8.
- a ventilation assembly 80 is also arranged on the upper side.
- the vent assembly 80 is in fluid communication with a balancer assembly 70, which will be described in detail with reference to the following figures.
- the ventilation assembly 80 ensures that no permanent negative pressure occurs inside the storage tank, in particular in an expansion tank connected to it, which could lead to damage or destruction of the hot water storage tank 1 .
- the ventilation group 80 is arranged to prevent the escape of liquid, i.e. water, from the interior of the reservoir.
- Fig. 2 shows schematically and as an example the hot water tank 1, without insulation and housing half-shells 2, 3 (see. Fig. 1).
- the compensating assembly 70 can be seen. This comprises, in particular, an expansion tank composed of an upper expansion tank half-shell 72 and a lower expansion tank half-shell 74 .
- the two half-shells of the expansion tank are preferably connected to one another by means of vibration friction welding.
- the upper expansion tank half-shell 72 and the lower expansion tank half-shell 74 have peripheral friction-weld edges 73, 75.
- the friction weld edges 73, 75 are designed to be accessed by a suitable machine. Vibration friction welding offers a particularly cost-effective and reliable, permanent connection between the two half-shells. Other ways of connecting two half-shells are also possible.
- FIG 3 shows, schematically and as an example, the hot water tank 1 of FIGS. 1 and 2 in cross section, so that a heating element 12 arranged inside the tank 10 and a temperature sensor 16 can be seen.
- the heating element 12 embodied as an electrical heating element with a plurality of turns is only to be understood as an example; other variants for heating the water inside the reservoir 10 are also conceivable.
- the heating element 12 is electrically connected to a power supply at terminals 13 and 14 formed at the top outside the reservoir.
- the temperature sensor 16 embodied as an integral temperature sensor, for example, is connected to control electronics via a connection 17 .
- control electronics are hidden in all figures, the design required for controlling or regulating a hot water storage tank 1 being known to a person skilled in the art.
- a cold water pipe 20 in fluid communication with the cold water inlet 6 has its opening 22 in the lower portion of the accumulator 10 .
- Cold water thus flows into the tank 10 when tapped from a fitting (not shown), is heated by the heating element 12 and emerges from the tank 10 through an opening 32 in the hot water pipe 30, which is arranged in the upper area of the tank .
- FIG. 4 shows, schematically and by way of example, the compensating assembly 70 from FIG. 3 in an enlarged representation.
- the cold water inlet 6 and ventilation assembly are connected to the compensation assembly 70 , while the hot water pipe 30 to the hot water connection 8 is routed past the compensation assembly 70 in a recess. This can prevent unwanted heat transfer from the hot water pipe 30 to the interior of the expansion tank.
- a connecting section 76 of the lower expansion tank half-shell 74 can also be seen.
- the cold water pipe 20 is mounted inside the storage.
- Caps 42, 44, 46 are provided to cover the top of the housing of the hot water tank.
- a plurality of clamps 48a,b,c,d and seals 50a,b,c,d,e,f,g,h,i, in particular O-ring seals, are also provided for assembly and sealing.
- Various tube sections 62, 30 and 82 have flanges 63, 33, 83 and 84 in order to ensure that the other components are securely fastened in the longitudinal direction of the tube sections 62, 30 and 82.
- a sieve 64 is arranged in the cold water connection 6 so that no impurities contained in the water, such as lumps of lime, can get into the reservoir 10 .
- the cold water connection 6 is coupled to the pipe section 62 via a coupling 66 .
- the cold water Before the cold water enters the reservoir 10 via the cold water pipe 20, it passes through an emptying component 90 which is designed to suck out the contents of the equalization tank if equalization water is present therein.
- a Venturi nozzle 92 is provided for this purpose, which causes a narrowing of the cross section to increase the flow rate.
- the Venturi nozzle 92 is preferably made of a metallic material, in particular copper, and is clamped in a receptacle 76 provided for this purpose between the upper expansion tank half-shell 72 and the lower expansion tank half-shell 74 .
- the particularly clever design of the expansion tank therefore enables the functional integration of the emptying component.
- Venturi nozzle 92 is designed as a separate metal component in this embodiment, the narrowing of the cross section can also be integrated directly into the expansion tank half-shell, in particular the upper expansion tank half-shell 72, without undercuts or the like making demolding more difficult.
- the cross section After exiting the venturi nozzle 92, the cross section increases again before the water enters the reservoir 10.
- the Venturi nozzle 92 ensures that when water flows in, water is sucked out of the expansion tank via an opening 100, which can be seen particularly clearly in FIG.
- the opening 100 connects the venturi nozzle 92 to a sealing portion 98 on which a ball 96 rests sealingly in the event that all water has been evacuated from the expansion tank.
- the ball 96 has a low density, so that it floats when the water flows in and no longer rests on the sealing section 98 . As a result, the water can then be sucked out of the expansion tank again by means of the Venturi nozzle 92 .
- a guide element 94 to the expansion tank is open, the movement of the ball 96 is essentially restricted to the vertical direction.
- a similar arrangement to the evacuation component 90 can be found in the area of the vent assembly 80 .
- a ball 86 is guided along a guide element 95 in the vertical direction according to a water level in the expansion tank. When a certain level is reached, the ball 86 seals against a sealing section 88 so that no water can escape from the hot water tank 1 through the ventilation opening.
- Identical components are particularly preferably used for the emptying component 90 and for the ventilation component or ventilation assembly 80 . This reduces the total number of different parts.
- Fig. 8 shows another section in the plane A-A without the hot water pipe 30 and other pipes.
- the embossments 78 for inserting and fixing the clamps can be seen in this section.
- Figures 9 and 10 show exploded views of the balancer assembly 70, Figure 10 additionally showing a cross section taken along plane A-A.
- FIG. 6 In addition to the B-B section shown in FIG. 6, another section lying between the A-A section and the B-B section is shown in FIG. Here the opening 100 between sealing section 98 and venturi nozzle 92 can be seen.
- FIG. 12 shows a cross-sectional perspective view similar to that shown in FIG.
- a ventilation cap 81 can be seen in this view, which forms part of the ventilation assembly 80 and is designed to ensure closure of the ventilation opening in the event of water leakage.
- the ventilation cap 81 can preferably have at least one swelling disk. Swells on contact with water the at least one swelling disk in such a way that the ventilation opening is reliably closed.
- a user will then detect the malfunction of the hot water storage tank 1, for example, if the fitting is dripping, since no expansion water or dripping water in the fitting can be accommodated in the expansion tank when the swelling disk closes the ventilation opening.
- Fig. 13 shows a schematic and exemplary detailed view of the upper storage part and the compensating assembly 70 in the sectional view of Fig. 12.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21801898.4A EP4264134A1 (de) | 2020-12-18 | 2021-10-28 | Ausgleichsbaugruppe und warmwasserspeicher |
AU2021399610A AU2021399610A1 (en) | 2020-12-18 | 2021-10-28 | Compensation assembly and hot water storage tank |
US18/267,123 US20240044516A1 (en) | 2020-12-18 | 2021-10-28 | Compensation assembly and hot water storage tank |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020134298.5 | 2020-12-18 | ||
DE102020134298.5A DE102020134298A1 (de) | 2020-12-18 | 2020-12-18 | Ausgleichsbaugruppe und Warmwasserspeicher |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022128223A1 true WO2022128223A1 (de) | 2022-06-23 |
Family
ID=78500624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/079974 WO2022128223A1 (de) | 2020-12-18 | 2021-10-28 | Ausgleichsbaugruppe und warmwasserspeicher |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240044516A1 (de) |
EP (1) | EP4264134A1 (de) |
AU (1) | AU2021399610A1 (de) |
DE (1) | DE102020134298A1 (de) |
WO (1) | WO2022128223A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3716336A1 (de) * | 1987-05-15 | 1988-12-08 | Heiner Kemper | Vorrichtung zur vermeidung des durch waermeausdehnung entstehenden tropfwassers bei offenen heisswasserspeichern |
DE4422746A1 (de) * | 1994-06-29 | 1996-01-04 | Stiebel Eltron Gmbh & Co Kg | Warmwasserbereiter |
EP2827077A1 (de) | 2013-07-18 | 2015-01-21 | BSH Bosch und Siemens Hausgeräte GmbH | Warmwasserspeicher |
DE102013225179A1 (de) * | 2013-12-06 | 2015-06-11 | BSH Hausgeräte GmbH | Warmwasserspeicher |
-
2020
- 2020-12-18 DE DE102020134298.5A patent/DE102020134298A1/de active Pending
-
2021
- 2021-10-28 US US18/267,123 patent/US20240044516A1/en active Pending
- 2021-10-28 WO PCT/EP2021/079974 patent/WO2022128223A1/de active Application Filing
- 2021-10-28 AU AU2021399610A patent/AU2021399610A1/en active Pending
- 2021-10-28 EP EP21801898.4A patent/EP4264134A1/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3716336A1 (de) * | 1987-05-15 | 1988-12-08 | Heiner Kemper | Vorrichtung zur vermeidung des durch waermeausdehnung entstehenden tropfwassers bei offenen heisswasserspeichern |
DE4422746A1 (de) * | 1994-06-29 | 1996-01-04 | Stiebel Eltron Gmbh & Co Kg | Warmwasserbereiter |
EP2827077A1 (de) | 2013-07-18 | 2015-01-21 | BSH Bosch und Siemens Hausgeräte GmbH | Warmwasserspeicher |
DE102013225179A1 (de) * | 2013-12-06 | 2015-06-11 | BSH Hausgeräte GmbH | Warmwasserspeicher |
Also Published As
Publication number | Publication date |
---|---|
US20240044516A1 (en) | 2024-02-08 |
DE102020134298A1 (de) | 2022-06-23 |
EP4264134A1 (de) | 2023-10-25 |
AU2021399610A1 (en) | 2023-06-15 |
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