EP1923644A2 - Water boiler - Google Patents

Water boiler Download PDF

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Publication number
EP1923644A2
EP1923644A2 EP07021607A EP07021607A EP1923644A2 EP 1923644 A2 EP1923644 A2 EP 1923644A2 EP 07021607 A EP07021607 A EP 07021607A EP 07021607 A EP07021607 A EP 07021607A EP 1923644 A2 EP1923644 A2 EP 1923644A2
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EP
European Patent Office
Prior art keywords
water
permanent magnet
gas valve
coil
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07021607A
Other languages
German (de)
French (fr)
Other versions
EP1923644A3 (en
Inventor
Pedro Cardoso
Luis Martins
Raul Reis
Vieira Ricardo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1923644A2 publication Critical patent/EP1923644A2/en
Publication of EP1923644A3 publication Critical patent/EP1923644A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24H1/0027—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using fluid fuel
    • 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
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/04—Fail safe for electrical power failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • 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
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/10—Gas turbines; Steam engines or steam turbines; Water turbines, e.g. located in water pipes

Definitions

  • the invention relates to a power supply independently operated water heater according to the preamble of claim 1.
  • Electricity-independent operated water heaters with a gas burner are well known. They work completely independently from a power grid and are therefore very easy to install.
  • water heaters of the generic type consist of at least one electromagnetic gas valve which can be controlled as a function of the amount of outlet water.
  • two series-connected gas valves are used for safety reasons.
  • Each gas valve has a spool and is held in the closed position by an oppositely acting spring.
  • a control device for the operation of the gas burner is provided, also to comply, for example, a preset hot water outlet temperature.
  • water heaters are known with a water turbine integrated into the water turbine and a coupled generator for generating electrical voltage for components. Due to the flow of water when opening a hot water outlet valve, the water turbine is operated. The electrical power generated is relatively small, so that so far only wanted to generate the ignition voltage.
  • U.S. Patent 4,740,725 It is known to use a hydraulic micro-turbine generator for generating an ignition voltage for igniting a gas burner for water heaters. As an advantage, it should be noted that this can be dispensed with a permanent pilot flame.
  • a water faucet for sanitary house installations wherein in a flow channel acted upon by a flowing water turbine wheel is provided which drives an electric generator. The turbine wheel is arranged directly in the flow path of the water-carrying wiring harness. The voltage generated by the generator is used to charge a rechargeable battery that supplies power to a control assembly that operates a valve of a water dispenser.
  • the invention is therefore based on the object of optimizing a water heater operated independent of the power supply, in particular with regard to the lowest possible consumption of electrical energy.
  • the water heater is characterized in that the water turbine is mechanically connected to a rotatably mounted permanent magnet, which rotates in dependence of the water flow and that the coil of the at least one gas valve is in operative connection with the circular path of the permanent magnet poles.
  • An increasing rotational frequency of the permanent magnet thus causes an increasing electrification of the coil of a gas valve and thus an increasing opening of a gas valve.
  • the coil of a gas valve can be activated each time the permanent magnet poles pass.
  • the amount of gas supplied to the gas burner may be modulated by activating the coil of a gas valve only every other or third pass of the permanent magnet poles or at longer intervals. Disabling a coil is done, for example, by opening an electrical contact.
  • the water turbine, the permanent magnet and the at least one gas valve are combined in one component and / or integrated into a housing.
  • This is maintenance and installation friendly, as some parts and significant construction costs in comparison saved to conventional solutions.
  • the entire arrangement is therefore very space-saving and leads to very compact water heaters.
  • the controller can determine the necessary electrification of the coil of a gas valve to comply with the required hot water outlet temperature and / or the required power of the gas burner.
  • the position of the permanent magnet and thus the rotational frequency in addition to the hot water inlet temperature and the hot water outlet temperature is detected with measuring devices.
  • the setting of the burner power according to the invention is quite simply possible by monitoring the electrification of the coil of a gas valve. The hitherto generally common change of gas valves is eliminated.
  • the drawing illustrates an embodiment of the invention and shows in a single figure the schematic structure in a power supply independent operated water heater.
  • a water turbine 5 for generating electrical voltage for components integrated which is operated by the water flow 2 when opening a hot water outlet valve, not shown.
  • the water turbine 5 brings about a mechanical drive 6 a permanent magnet 7 dependence of the water flow 2 in rotation.
  • the permanent magnet 7 is in its orbit with its poles in operative connection with the respective coils of controllable electromagnetic gas valves 8, 9, which are arranged between a gas inlet 3 and a gas outlet 4. About the electrification of the coil, the gas valves 8, 9 are opened and with a spring 10, these are held in the closed position. With measuring devices 11, the position and the rotational frequency of the permanent magnet 7 is detected.

Abstract

The water heater has a gas burner, and an electromagnetic gas valve (8,9) controlled depending on the quantity of discharged water. A spring is held in the close position, and a control device and a water turbine (5) are integrated in a water pipe (1) for generating electrical voltage for components by the flow of water (2) by opening a hot water-discharge-valve. The water turbine is connected mechanically with a permanent magnet (7), which rotates depending on flow of water and the indicator of the gas valve stays in working connection with the circular path of the permanent magnetic pole.

Description

Die Erfindung betrifft einen stromnetzunabhängig betriebenen Wassererhitzer nach dem Oberbegriff des Patentanspruches 1.The invention relates to a power supply independently operated water heater according to the preamble of claim 1.

Stromnetzunabhängig betriebene Wassererhitzer mit einem Gasbrenner sind allgemein bekannt. Sie arbeiten völlig autark von einem Stromnetz und sind daher auch sehr einfach zu installieren. Im Wesentlichen bestehen gattungsgemäße Wassererhitzer aus mindestens einem in Abhängigkeit der Auslaufwassermenge steuerbaren elektromagnetischen Gasventil. Üblicherweise werden aus Sicherheitsgründen zwei in Reihe geschaltete Gasventile eingesetzt. Jedes Gasventil weist eine Spule auf und wird mit einer entgegengesetzt wirkenden Feder in der Schließposition gehalten. Weiterhin ist eine Regeleinrichtung für den Betrieb des Gasbrenners vorgesehen, auch um beispielsweise eine voreingestellte Warmwasser-Auslauftemperatur einzuhalten.Electricity-independent operated water heaters with a gas burner are well known. They work completely independently from a power grid and are therefore very easy to install. Essentially, water heaters of the generic type consist of at least one electromagnetic gas valve which can be controlled as a function of the amount of outlet water. Usually, two series-connected gas valves are used for safety reasons. Each gas valve has a spool and is held in the closed position by an oppositely acting spring. Furthermore, a control device for the operation of the gas burner is provided, also to comply, for example, a preset hot water outlet temperature.

Weiterhin sind Wassererhitzer mit einer in die Wasserleitung integrierten Wasserturbine und einem gekoppelten Generator zur Erzeugung von elektrischer Spannung für Komponenten bekannt. Durch die Wasserströmung beim Öffnen eines Warmwasser-Auslassventils wird die Wasserturbine betrieben. Die erzeugten elektrischen Leistungen sind relativ klein, so dass man damit bisher lediglich die Zündspannung erzeugen wollte. Aus der US-PS 4 740 725 ist bekannt, einen hydraulischen Mikro-Turbinen-Generator zur Erzeugung einer Zündspannung zum Zünden eines Gasbrenners für Wassererhitzer einzusetzen. Als Vorteil wird darauf hingewiesen, dass dadurch auf eine permanente Zündflamme verzichtet werden kann. Auch aus der EP 361 333 geht eine Wasserarmatur für sanitäre Hausinstallationen hervor, wobei in einem Strömungskanal ein von durchströmenden Wasser beaufschlagtes Turbinenrad vorgesehen ist, das einen elektrischen Generator antreibt. Das Turbinenrad ist dabei unmittelbar im Strömungsweg des Wasser führenden Leitungsstrangs angeordnet. Die vom Generator erzeugte Spannung wird dabei zum Laden eines Akkumulators verwendet, der eine Steueranordnung mit Spannung versorgt, die ein Ventil eines Wasserspenders betätigt.Furthermore, water heaters are known with a water turbine integrated into the water turbine and a coupled generator for generating electrical voltage for components. Due to the flow of water when opening a hot water outlet valve, the water turbine is operated. The electrical power generated is relatively small, so that so far only wanted to generate the ignition voltage. From the U.S. Patent 4,740,725 It is known to use a hydraulic micro-turbine generator for generating an ignition voltage for igniting a gas burner for water heaters. As an advantage, it should be noted that this can be dispensed with a permanent pilot flame. Also from the EP 361 333 is a water faucet for sanitary house installations, wherein in a flow channel acted upon by a flowing water turbine wheel is provided which drives an electric generator. The turbine wheel is arranged directly in the flow path of the water-carrying wiring harness. The voltage generated by the generator is used to charge a rechargeable battery that supplies power to a control assembly that operates a valve of a water dispenser.

Weiterhin ist aus der DE 199 54 967 A1 eine Vorrichtung bekannt, mit der unabhängig von der Durchflussmenge im Leitungsstrang die zum Antreiben der Turbine beziehungsweise des Generators notwendige Strömungsmenge im Wesentlichen konstant bleibt. Dadurch wird gewährleistet, dass unabhängig von der Stellung des Auslassventils eine ausreichenden elektrische Spannung für die elektrischen Verbraucher des Wassererhitzers zu Verfügung steht.Furthermore, from the DE 199 54 967 A1 a device known, regardless of the flow rate in the wiring harness for driving the turbine or the flow rate required by the generator remains substantially constant. This ensures that, regardless of the position of the exhaust valve sufficient electrical voltage for the electrical loads of the water heater is available.

Alle diese Lösungen benötigen mehrere Sensoren sowie zusätzliche Einzelkomponenten und Bauelemente zum genauen Detektieren des Wasserdurchflusses und zum nachfolgenden Regeln der Brennerleistung über die Gasmenge, welche über die Magnetventile eingestellt wird. Erst durch aufwändige Auswertung des Wasserdurchflusses und Verknüpfung mehrerer Komponenten wird somit die erforderliche Brennerleistung nachgeführt.All of these solutions require multiple sensors as well as additional individual components and components for accurately detecting the flow of water and subsequently controlling the burner power over the amount of gas that is adjusted through the solenoid valves. Only through elaborate evaluation of the water flow and linking several components thus the required burner power is tracked.

Der Erfindung liegt daher die Aufgabe zugrunde, einen stromnetzunabhängig betriebenen Wassererhitzer insbesondere im Hinblick auf einen möglichst niedrigen Verbrauch an elektrischer Energie zu optimieren.The invention is therefore based on the object of optimizing a water heater operated independent of the power supply, in particular with regard to the lowest possible consumption of electrical energy.

Erfindungsgemäß wird dies mit den Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.This is achieved with the features of claim 1 according to the invention. Advantageous developments can be found in the dependent claims.

Der Wassererhitzer ist dadurch gekennzeichnet, dass die Wasserturbine mechanisch mit einem drehbar gelagerten Permanentmagneten verbunden ist, welcher in Abhängigkeit der Wasserströmung rotiert und dass die Spule des mindestens einen Gasventils in Wirkverbindung mit der Kreisbahn der Permanentmagnet-Pole steht.The water heater is characterized in that the water turbine is mechanically connected to a rotatably mounted permanent magnet, which rotates in dependence of the water flow and that the coil of the at least one gas valve is in operative connection with the circular path of the permanent magnet poles.

Eine zunehmende Rotationsfrequenz des Permanentmagneten bewirkt somit eine zunehmende Elektrisierung der Spule eines Gasventils und somit ein zunehmendes Öffnen eines Gasventils. Dabei kann die Spule eines Gasventils bei jedem Passieren der Permanentmagnet-Pole aktiviert sein. Alternativ dazu kann auch die dem Gasbrenner zugeführte Gasmenge moduliert werden, indem die Spule eines Gasventils nur bei jedem zweiten oder dritten Passieren der Permanentmagnet-Pole oder in größeren Intervallen aktiviert wird. Das Deaktivieren einer Spule erfolgt zum Beispiel durch das Öffnen eines elektrischen Kontaktes.An increasing rotational frequency of the permanent magnet thus causes an increasing electrification of the coil of a gas valve and thus an increasing opening of a gas valve. In this case, the coil of a gas valve can be activated each time the permanent magnet poles pass. Alternatively, the amount of gas supplied to the gas burner may be modulated by activating the coil of a gas valve only every other or third pass of the permanent magnet poles or at longer intervals. Disabling a coil is done, for example, by opening an electrical contact.

Vorteilhafterweise sind die Wasserturbine, der Permanentmagnet und das mindestens eine Gasventil in einem Bauteil zusammengefasst und/oder in ein Gehäuse integriert. Dies ist wartungs- und montagefreundlich, da einige Teile und erheblicher Bauaufwand im Vergleich zu herkömmlichen Lösungen eingespart werden. Die gesamte Anordnung ist daher sehr Platz sparend und führt zu sehr kompakt aufgebauten Wassererhitzern.Advantageously, the water turbine, the permanent magnet and the at least one gas valve are combined in one component and / or integrated into a housing. This is maintenance and installation friendly, as some parts and significant construction costs in comparison saved to conventional solutions. The entire arrangement is therefore very space-saving and leads to very compact water heaters.

Weiterhin kann die Regeleinrichtung zur Einhaltung der geforderten Warmwasser-Auslauftemperatur und/oder der geforderten Leistung des Gasbrenners die notwendige Elektrisierung der Spule eines Gasventils ermitteln. Dabei wird mit Messeinrichtungen die Position des Permanentmagneten und damit die Rotationsfrequenz zusätzlich zur Warmwasser-Eintrittstemperatur und zur Warmwasser-Austrittstemperatur erfasst. Das Einstellen der Brennerleistung ist erfindungsgemäß ganz einfach durch die Überwachung der Elektrisierung der Spule eines Gasventils möglich. Das bisher allgemein dabei übliche Wechseln der Gasventile entfällt.Furthermore, the controller can determine the necessary electrification of the coil of a gas valve to comply with the required hot water outlet temperature and / or the required power of the gas burner. In this case, the position of the permanent magnet and thus the rotational frequency in addition to the hot water inlet temperature and the hot water outlet temperature is detected with measuring devices. The setting of the burner power according to the invention is quite simply possible by monitoring the electrification of the coil of a gas valve. The hitherto generally common change of gas valves is eliminated.

Die Zeichnung stellt ein Ausführungsbeispiel der Erfindung dar und zeigt in einer einzigen Figur den schematischen Aufbau in einem stromnetzunabhängig betriebenen Wassererhitzer.The drawing illustrates an embodiment of the invention and shows in a single figure the schematic structure in a power supply independent operated water heater.

Im Wassererhitzer ist in die Wasserleitung 1 eine Wasserturbine 5 zur Erzeugung von elektrischer Spannung für Komponenten integrierten, welche durch die Wasserströmung 2 beim Öffnen eines nicht dargestellten Warmwasser-Auslassventils betrieben wird. Die Wasserturbine 5 bringt über eine mechanischen Antrieb 6 einen Permanentmagneten 7 Abhängigkeit der Wasserströmung 2 in Rotation.In the water heater in the water pipe 1, a water turbine 5 for generating electrical voltage for components integrated, which is operated by the water flow 2 when opening a hot water outlet valve, not shown. The water turbine 5 brings about a mechanical drive 6 a permanent magnet 7 dependence of the water flow 2 in rotation.

Der Permanentmagnet 7 steht mit seinen Polen auf seiner Kreisbahn in Wirkverbindung mit den jeweiligen Spulen von steuerbaren elektromagnetischen Gasventilen 8, 9, welche zwischen einem Gas-Einlass 3 und einem Gas-Auslass 4 angeordnet sind. Über die Elektrisierung der Spule werden die Gasventile 8, 9 geöffnet und mit einer Feder 10 werden diese in der Schließposition gehalten. Mit Messeinrichtungen 11 wird die Position und die Rotationsfrequenz des Permanentmagneten 7 erfasst.The permanent magnet 7 is in its orbit with its poles in operative connection with the respective coils of controllable electromagnetic gas valves 8, 9, which are arranged between a gas inlet 3 and a gas outlet 4. About the electrification of the coil, the gas valves 8, 9 are opened and with a spring 10, these are held in the closed position. With measuring devices 11, the position and the rotational frequency of the permanent magnet 7 is detected.

Da die Rotationsfrequenz des Permanentmagneten 7 direkt von der Wasserströmung 2 abhängt, können die Gasventile 8, 9 und damit die Leistung des Gasbrenners sehr genau geregelt werden.Since the rotational frequency of the permanent magnet 7 depends directly on the water flow 2, the gas valves 8, 9 and thus the performance of the gas burner can be controlled very accurately.

Claims (6)

Stromnetzunabhängig betriebener Wassererhitzer mit einem Gasbrenner, mindestens einem in Abhängigkeit der Auslaufwassermenge steuerbaren elektromagnetischen Gasventil (8, 9), welches eine Spule aufweist und mit einer Feder (11) in der Schließposition gehalten wird, einer Regeleinrichtung und einer in die Wasserleitung (1) integrierten Wasserturbine (5) zur Erzeugung von elektrischer Spannung für Komponenten durch die Wasserströmung (2) beim Öffnen eines Warmwasser-Auslassventils,
dadurch gekennzeichnet, dass die Wasserturbine (5) mechanisch mit einem Permanentmagneten (7) verbunden ist, welcher in Abhängigkeit der Wasserströmung (2) rotiert und dass die Spule des mindestens einen Gasventils (8, 9) in Wirkverbindung mit der Kreisbahn der Permanentmagnet-Pole steht.Independently of the power supply operated water heater with a gas burner, at least one controllable in dependence of the discharge water amount electromagnetic gas valve (8, 9) having a coil and is held with a spring (11) in the closed position, a control device and a in the water pipe (1) integrated Water turbine (5) for generating electrical voltage for components through the water flow (2) when opening a hot water outlet valve,
characterized in that the water turbine (5) is mechanically connected to a permanent magnet (7) which rotates in response to the water flow (2) and that the coil of the at least one gas valve (8, 9) in operative connection with the circular path of the permanent magnet poles stands. Wassererhitzer nach Anspruch 1,
dadurch gekennzeichnet, dass eine zunehmende Rotationsfrequenz des Permanentmagneten (7) eine zunehmende Elektrisierung der Spule eines Gasventils (8, 9) und somit ein zunehmendes Öffnen eines Gasventils (8, 9) bewirkt.Water heater according to claim 1,
characterized in that an increasing rotational frequency of the permanent magnet (7) causes an increasing electrification of the coil of a gas valve (8, 9) and thus an increasing opening of a gas valve (8, 9). Wassererhitzer nach den Ansprüchen 1 oder 2,
dadurch gekennzeichnet, dass die Spule eines Gasventils (8, 9) bei jedem Passieren der Permanentmagnet-Pole aktiviert ist.Water heater according to claims 1 or 2,
characterized in that the coil of a gas valve (8, 9) is activated each time the permanent magnet pole passes. Wassererhitzer nach den Ansprüchen 1 oder 2,
dadurch gekennzeichnet, dass die dem Gasbrenner zugeführte Gasmenge moduliert wird, indem die Spule eines Gasventils (8, 9) nur bei jedem zweiten oder dritten Passieren der Permanentmagnet-Pole oder in größeren Intervallen aktiviert wird.Water heater according to claims 1 or 2,
characterized in that the amount of gas supplied to the gas burner is modulated by the coil of a gas valve (8, 9) is activated only every other or third pass of the permanent magnet poles or at longer intervals. Wassererhitzer nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Wasserturbine (5), der Permanentmagnet (7) und das mindestens eine Gasventil (8, 9) in einem Bauteil zusammengefasst und/oder in ein Gehäuse integriert sind.Water heater according to one of claims 1 to 4,
characterized in that the water turbine (5), the permanent magnet (7) and the at least one gas valve (8, 9) are combined in one component and / or integrated into a housing. Wassererhitzer nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Regeleinrichtung zur Einhaltung der geforderten Warmwasser-Auslauftemperatur und/oder der geforderten Leistung des Gasbrenners die notwendige Elektrisierung der Spule eines Gasventils (8, 9) ermittelt, indem mit Messeinrichtungen (11) die Position des Permanentmagneten (7) und damit die Rotationsfrequenz, die Warmwasser-Eintrittstemperatur sowie die Warmwasser-Austrittstemperatur erfasst werden.Water heater according to one of claims 1 to 5,
characterized in that the control device for maintaining the required hot water outlet temperature and / or the required power of the gas burner, the necessary electrification of the coil of a gas valve (8, 9) determined by measuring devices (11), the position of the permanent magnet (7) and thus the rotational frequency, the hot water inlet temperature and the hot water outlet temperature are detected.
EP07021607.2A 2006-11-16 2007-11-07 Water boiler Withdrawn EP1923644A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006053993A DE102006053993B3 (en) 2006-11-16 2006-11-16 Power supply independent operated water heater has electromagnetic gas valve, and water turbine is connected mechanically with permanent magnet, which rotates depending on flow of water

Publications (2)

Publication Number Publication Date
EP1923644A2 true EP1923644A2 (en) 2008-05-21
EP1923644A3 EP1923644A3 (en) 2013-06-05

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EP07021607.2A Withdrawn EP1923644A3 (en) 2006-11-16 2007-11-07 Water boiler

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DE (1) DE102006053993B3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465871A (en) * 2015-12-14 2016-04-06 淄博佳铭环保科技有限公司 Air energy auxiliary preheat heating method and water heating unit thereof
DE102017201056A1 (en) 2017-01-24 2018-07-26 Robert Bosch Gmbh Gas valve for a heat cycle of a vehicle and manufacturing method for a gas valve
CN114893819A (en) * 2022-05-05 2022-08-12 周学福 Hydrodynamic heating device for civil central heating

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770161A (en) * 1986-03-06 1988-09-13 Chaffoteaux & Maury Gas water heaters or bath heaters

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583112B1 (en) * 1985-06-06 1987-08-14 Charron Jean Claude HYDRAULIC MICROTURBO-ALTERNATOR
CA1323906C (en) * 1988-09-27 1993-11-02 Ferdinand F. Hochstrasser Water fitting, particularly for sanitary domestic installations
DE19954967A1 (en) * 1999-11-16 2001-05-17 Bosch Gmbh Robert Device for generating an electrical voltage for components of a gas-fired water heater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770161A (en) * 1986-03-06 1988-09-13 Chaffoteaux & Maury Gas water heaters or bath heaters

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465871A (en) * 2015-12-14 2016-04-06 淄博佳铭环保科技有限公司 Air energy auxiliary preheat heating method and water heating unit thereof
CN105465871B (en) * 2015-12-14 2018-09-04 淄博佳铭环保科技有限公司 Air can assist the heating method and its Hot water units of preheating
DE102017201056A1 (en) 2017-01-24 2018-07-26 Robert Bosch Gmbh Gas valve for a heat cycle of a vehicle and manufacturing method for a gas valve
WO2018137860A1 (en) 2017-01-24 2018-08-02 Robert Bosch Gmbh Gas valve for a heat circuit of a vehicle, and production method for a gas valve
CN114893819A (en) * 2022-05-05 2022-08-12 周学福 Hydrodynamic heating device for civil central heating

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Publication number Publication date
EP1923644A3 (en) 2013-06-05
DE102006053993B3 (en) 2008-01-31

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