DE4209427A1 - Warm water supply for vehicle with coolant cooled engine - has coolant by=pass to heat exchanger in insulated water tank and with booster heating - Google Patents
Warm water supply for vehicle with coolant cooled engine - has coolant by=pass to heat exchanger in insulated water tank and with booster heatingInfo
- Publication number
- DE4209427A1 DE4209427A1 DE4209427A DE4209427A DE4209427A1 DE 4209427 A1 DE4209427 A1 DE 4209427A1 DE 4209427 A DE4209427 A DE 4209427A DE 4209427 A DE4209427 A DE 4209427A DE 4209427 A1 DE4209427 A1 DE 4209427A1
- Authority
- DE
- Germany
- Prior art keywords
- coolant
- water tank
- heating
- hot water
- vehicle
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00364—Air-conditioning arrangements specially adapted for particular vehicles for caravans or trailers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R15/00—Arrangements or adaptations of sanitation devices
- B60R15/02—Washing facilities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B65/00—Adaptations of engines for special uses not provided for in groups F02B61/00 or F02B63/00; Combinations of engines with other devices, e.g. with non-driven apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Die Erfindung erstreckt sich auf eine Vorrichtung zum Versorgen von Fahrzeugen, insbesondere Kraftfahrzeugen, mit Warmwasser, die von flüssigkeitsgekühlten Verbrennungs motoren angetrieben werden. Bei den bekannten Vorrichtungen dieser Art - z. B. Wohnmobilen - wird das Warmwasser in durch besondere Wärmequellen, z. B. durch einen Flüssiggas- Brenner und/oder durch an eine äußere elektrische Ver sorgungsleitung anschließbare Heizelemente erwärmt. Für beide Arten der Erwärmung des Brauchwassers wird zu sätzliche Energie verbraucht, die entweder in Form einer größeren Menge von Flüssiggas mitgeführt oder in Form elektrischer Fremdenergie zugeführt werden muß und daher erhöhte Betriebskosten verursacht sowie eine Mehrbelastung der Umwelt darstellt.The invention extends to a device for Supply of vehicles, in particular motor vehicles, with Hot water from liquid-cooled combustion motors are driven. In the known devices of this type - e.g. B. RV - the hot water is in through special heat sources, e.g. B. by a liquid gas Burner and / or by an external electrical Ver supply line for heated heating elements. For Both types of domestic water heating will be too additional energy consumed, either in the form of a carried a large amount of liquid gas or in the form external electrical energy must be supplied and therefore causes increased operating costs and an additional burden represents the environment.
Aufgabe der Erfindung ist, eine Vorrichtung zu schaffen, die es gestattet, zumindest einen Teil der beim Betrieb der Verbrennungsmotoren aus diesen mittels des Flüssigkeits- Kühlsystems abzuführenden Wärme zum Beheizen des Frisch wasser-Behälters auszunutzen. Auf diese Weise kann gleich zeitig an Betriebskosten des Kraftfahrzeuges gespart und ein Beitrag zur Verringerung der Umweltbelastung er zielt werden. Diese Aufgabe ist erfindungsgemäß durch eine Vorrichtung gemäß dem Kennzeichen des Anspruches 1 ge löst worden. Durch eine derartige Vorrichtung wird unter Aufrechterhaltung der normalen Wirkungsweise des Flüssig keits-Kühlsystems für den Antriebs-Verbrennungsmotor die aus diesem abzuführende Wärme während seines Betriebes teilweise zum Beheizen des Behälters für warmes Brauch wasser ausgenutzt, die bisher allein durch den Kühler an die Außenluft abgegeben wird sobald der Motor seine Betriebstemperatur erreicht hat und das Thermostat-Ventil in dem Kühlflüssigkeits-Kreislauf öffnet. Die erfindungs gemäße Vorrichtung macht mit seiner Betriebstemperatur laufendem Antriebsmotor zum Beheizen des Behälters für warmes Frischwasser durch Zufuhr von Wärme durch eine zusätzliche Wärme-Quelle wie z. B. einem Flüssigkeits- Brenner oder einem elektrischen Heiz-Element unnötig und erspart dadurch sowohl Gewicht als auch Betriebskosten und verringert gleichzeitig die Umweltbelastung durch Herabsetzung des CO-Ausstoßes. Weitere vorteilhafte Merkmale der Erfindung ergeben sich aus den Unteransprüchen sowie der nachstehenden Beschreibung eines Ausführungs beispieles an Hand der beigefügten Schema-Zeichnung.The object of the invention is to create a device which allows at least part of the operation of the Internal combustion engines from these by means of the liquid Cooling system to dissipate heat to heat the fresh water tank. This way, the same saved on operating costs of the motor vehicle and a contribution to reducing the environmental impact aims to be. This object is achieved by a Device according to the characterizing part of claim 1 ge been resolved. With such a device is under Maintaining the normal functioning of the liquid cooling system for the drive internal combustion engine heat to be dissipated from this during its operation partly for heating the container for warm use exploited water, which was previously used only by the cooler the outside air is released as soon as the engine is running Has reached operating temperature and the thermostatic valve in the coolant circuit opens. The fiction appropriate device makes with its operating temperature running drive motor for heating the container for warm fresh water by supplying heat through a additional heat source such as B. a liquid Burner or an electrical heating element unnecessary and saves weight as well as operating costs and reduces the environmental impact at the same time Reduction of CO emissions. More beneficial Features of the invention emerge from the subclaims and the following description of an embodiment example using the attached schematic drawing.
Die in der Zeichnung schematisch dargestellte Vorrichtung zum Versorgen z. B. eines durch einen flüssigkeitsgekühlten Verbrennungs-Motor M angetriebenes Wohnmobil mit erwärmten Brauchwasser besteht aus einem wärmeisolierten Frisch wasserbehälter 1 mit Einfüllstutzen 1′ und Entlüftung 1′′ mit einem darin angeordneten Wärmetauscher 2 zum Beheizen des Wasserinhaltes durch einen Nebenkreislauf 3, 3′ zu dem normalen Kühlflüssigkeits-Kreislauf 4, 4′ zwischen dem Antriebs-Verbrennungs-Motor M und dem Kühler K, der beim Erreichen der Betriebstemperatur der Kühl flüssigkeit von z. B. 90°C durch ein Thermostatventil geöffnet wird und von einer nicht mit dargestellten Kühlflüssigkeitspumpe am Motorausgang zu fließen beginnt. Gemäß der Erfindung ist in dem Kühlflüssigkeits-Vorlauf 4 vor dem normalen z. B. bei 90° öffnenden Thermostatventil 5 ein weiteres Thermostatventil 6 angeordnet, das bei einer geringfügig z. B. 5°C niedrigeren Temperatur der Kühl flüssigkeit öffnet und damit einen aus dem Vorlauf 4 abgezweigten und in den Rücklauf 4′ führenden Neben kreislauf 3, 3′ für die Kühlflüssigkeit durch den Wärme tauscher 2 freigibt. Zum Verändern der Durchflußmenge durch den Nebenkreislauf 3, 3′ und damit die vom Wärmetauscher 2 an das Brauchwasser zugeführte Wärmemenge ist hinter dem Thermostatventil 6 in dem Nebenkreislauf 3, 3′ ein Regelventil 7 angeordnet, das z. B. durch ein Steuer gerät 8 mit einem im Behälter 1 vorgesehenen Temperatur fühler 8′ auf eine gewünschte Temperatur des Warmwassers einstellbar ist.The device shown schematically in the drawing for supplying z. B. a powered by a liquid-cooled internal combustion engine M with heated domestic water consists of a thermally insulated fresh water tank 1 with filler neck 1 'and ventilation 1 ''with a heat exchanger 2 arranged therein for heating the water content by a secondary circuit 3 , 3 ' to the normal coolant circuit 4 , 4 'between the drive internal combustion engine M and the cooler K, the liquid when reaching the operating temperature of the cooling z. B. 90 ° C is opened by a thermostatic valve and begins to flow from a coolant pump, not shown, at the engine outlet. According to the invention is in the coolant flow 4 before the normal z. B. at 90 ° opening thermostatic valve 5 , another thermostatic valve 6 is arranged, which at a slightly z. B. 5 ° C lower temperature of the cooling liquid opens and thus a branched off from the flow 4 and in the return 4 'leading secondary circuit 3 , 3 ' for the coolant through the heat exchanger 2 releases. To change the flow rate through the secondary circuit 3 , 3 'and thus the amount of heat supplied by the heat exchanger 2 to the process water is arranged behind the thermostatic valve 6 in the secondary circuit 3 , 3 ', a control valve 7 , the z. B. by a control device 8 with a provided in the container 1 temperature sensor 8 'to a desired temperature of the hot water is adjustable.
Um auch während längerer Standzeiten eines Kraftfahrzeuges vor allem in Form eines Wohnmobils auf Camping-Plätzen warmes Brauchwasser verfügbar zu haben, liegt es im Rahmen der Erfindung in dem Brauchwasser-Behälter 1 in bekannter Weise zusätzlich ein elektrisches Heizelement 10 anzu ordnen, das von einer äußeren Stromquelle 9 vorzugsweise über das gleiche Steuergerät 8 regelbar benutzt werden kann. An Stelle eines elektrischen Heizelementes 10 oder zusätzlich zu diesem ist bei dem Ausführungsbeispiel ein von der Wasser-Entnahmeleitung 11 mit einer Druckpumpe 12 zu einer oder mehreren Zapfstellen 13 eine Zweigleitung 14 vorgesehen, die mit Hilfe einer Umwälzpumpe 15 einen Teil des Brauchwassers über einen durch einen Gasbrenner 16 beheizbaren Zusatz- Wasserbehälter 17 in den Warmwasserbehälter 1 zu dessen Erwärmung zurückführt. Die erfindungsgemäße Vorrichtung ist selbstverständlich außer für lediglich als Ausführungs beispiele geltende Wohnmobile auch für die Anwendung bei allen anderen durch flüssigkeitsgekühlte Verbrennungs motoren angetriebenen Kraftfahrzeugen wie LKW′s, Omnibussen, PKW′s, Baumaschinen aller Arten wie z. B. Baggern, Kränen, Betonmischern usw. sowie auch für Motorboote mit den gleichen Vorteilen in Bezug auf Fremdenergie-Einsparung und Schonung der Umwelt bestimmt und bestens geeignet. So schafft gerade die im Anspruch 7 erwähnte Anordnung einer zusätzlichen vorzugsweise vom Bordnetz des Fahrzeuges antreibbaren Umwälzpumpe 18 im Nebenkreislauf 3, 3′ der erfindungsgemäßen Vorrichtung die Möglichkeit zum evtl. sogar fernsteuerbaren Vorwärmen der Antriebsmotoren und/oder des Fahrzeug-Innenraumes bzw. auftauen vereister Scheiben vor dem Starten des Fahrzeuges bei niedrigen Außentemperaturen mit Hilfe der im Warm wasserbehälter während des vorangegangenen Betriebes gespeicherten Wärme ohne jede Zuhilfenahme von zusätzlicher Fremdenergie.In order to have hot domestic water available even during long idle times of a motor vehicle, especially in the form of a motorhome on campsites, it is within the scope of the invention in the domestic water container 1 in a known manner to additionally arrange an electric heating element 10 , which is from an external Current source 9 can preferably be used controllably via the same control unit 8 . Instead of an electric heating element 10 or in addition to this, in the exemplary embodiment a branch line 14 is provided from the water extraction line 11 with a pressure pump 12 to one or more tapping points 13 , which, with the help of a circulation pump 15, transfers part of the process water via a through a Gas burner 16 heatable additional water tank 17 returns to the warm water tank 1 for heating it. The device according to the invention is of course except for only as examples of execution motorhomes also for use in all other motor vehicles driven by liquid-cooled combustion engines such as trucks, buses, cars, construction machinery of all types such as. B. excavators, cranes, concrete mixers etc. as well as for motor boats with the same advantages in terms of external energy saving and environmental protection determined and ideally suited. Thus, just the arrangement mentioned in claim 7 of an additional circulation pump 18 preferably drivable from the vehicle's electrical system in the secondary circuit 3 , 3 'of the device according to the invention provides the possibility of possibly even remote-controlled preheating of the drive motors and / or the vehicle interior or thawing icy windows before starting the vehicle at low outside temperatures with the help of the heat stored in the hot water tank during the previous operation without any additional external energy.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4209427A DE4209427A1 (en) | 1992-02-14 | 1992-03-24 | Warm water supply for vehicle with coolant cooled engine - has coolant by=pass to heat exchanger in insulated water tank and with booster heating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9201907U DE9201907U1 (en) | 1992-02-14 | 1992-02-14 | Device for supplying vehicles, in particular motor vehicles, with hot water |
DE4209427A DE4209427A1 (en) | 1992-02-14 | 1992-03-24 | Warm water supply for vehicle with coolant cooled engine - has coolant by=pass to heat exchanger in insulated water tank and with booster heating |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4209427A1 true DE4209427A1 (en) | 1993-08-19 |
Family
ID=25913133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4209427A Ceased DE4209427A1 (en) | 1992-02-14 | 1992-03-24 | Warm water supply for vehicle with coolant cooled engine - has coolant by=pass to heat exchanger in insulated water tank and with booster heating |
Country Status (1)
Country | Link |
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DE (1) | DE4209427A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29703700U1 (en) * | 1997-03-03 | 1998-07-09 | Kröger, Hans, Dipl.-Ing., 88718 Daisendorf | Antifreeze system |
US7264178B1 (en) * | 2006-07-20 | 2007-09-04 | Hugg Richard C | Foam spraying rig |
US8201615B2 (en) | 2008-02-22 | 2012-06-19 | Dow Global Technologies Llc | Heat storage devices |
CN105757979A (en) * | 2016-04-23 | 2016-07-13 | 广东合即得能源科技有限公司 | Domestic heat pump water heater system and heating method |
CN105905025A (en) * | 2016-04-23 | 2016-08-31 | 广东合即得能源科技有限公司 | Heat pump water heater system of fuel cell limo and heating method |
CN106016704A (en) * | 2016-07-08 | 2016-10-12 | 江苏法美瑞汽车发展有限公司 | Heat-exchange water tank for motor home |
WO2021224049A1 (en) * | 2020-05-07 | 2021-11-11 | Truma Gerätetechnik GmbH & Co. KG | Hot water storage system |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1729084U (en) * | 1955-08-17 | 1956-08-30 | Charles Dr Med Zschau | COFFEE MAKER IN THE CAR. |
DE1799611U (en) * | 1959-07-20 | 1959-11-05 | August Schlosser | VEHICLE KITCHEN. |
DE1090123B (en) * | 1955-11-30 | 1960-09-29 | Max Lange | Device for preparing boiling or hot liquids in motor vehicles |
DE1136231B (en) * | 1959-07-20 | 1962-09-06 | August Schlosser | Device for heating water, food, canned food or the like in a motor vehicle |
DE1214560B (en) * | 1960-06-24 | 1966-04-14 | Arnot Designs Ltd | Device for preparing boiling water in vehicles |
DE1235171B (en) * | 1964-05-02 | 1967-02-23 | Dr Med Charles Zschau | Boiling water heater for motor vehicles |
US3521704A (en) * | 1968-07-22 | 1970-07-28 | James Earl Bridegum | Heat exchanger for recreational vehicle |
DE2829780A1 (en) * | 1978-07-06 | 1980-01-17 | Harald Scholl | Windscreen washer fluid heater for car - has heat exchanger coil tapped into engine coolant circuit using suitable valves |
DE2927680A1 (en) * | 1979-07-09 | 1981-01-29 | Heinz Sause | Heat store chemical cpd. used in heat engine, e.g. of vehicle - pref. is sodium sulphate deca:hydrate taking heat from cooling water, exhaust gas and lubricant |
DE3019786A1 (en) * | 1980-05-23 | 1981-12-03 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Storage heater for motor vehicles with IC engines - contains electric resistance heaters, so mains electricity can be used to preheat engine and interior of vehicle |
DE8533556U1 (en) * | 1985-11-28 | 1986-04-03 | Lilie, Walter, 7022 Leinfelden-Echterdingen | Liquid containers, in particular fresh and / or waste water tanks for land vehicles and water vehicles |
DE3638471A1 (en) * | 1985-11-21 | 1987-05-27 | Volkswagen Ag | Vehicle heater |
DE9000628U1 (en) * | 1990-01-22 | 1990-03-29 | Patett, Klaus, Dipl.-Ing., 3320 Salzgitter | Water cooling device for a water-cooled internal combustion engine |
DE3919767A1 (en) * | 1989-06-16 | 1991-01-03 | Franz Stuckenberger | Engine waste heat recycling device - has connection unit and heat exchanger to heat water |
DE9111844U1 (en) * | 1991-09-18 | 1991-12-05 | Shen, Chen Ming, Wu-Chie Village, Ilan | Drinking water heating device for the vehicle that exchanges engine heat |
-
1992
- 1992-03-24 DE DE4209427A patent/DE4209427A1/en not_active Ceased
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1729084U (en) * | 1955-08-17 | 1956-08-30 | Charles Dr Med Zschau | COFFEE MAKER IN THE CAR. |
DE1090123B (en) * | 1955-11-30 | 1960-09-29 | Max Lange | Device for preparing boiling or hot liquids in motor vehicles |
DE1799611U (en) * | 1959-07-20 | 1959-11-05 | August Schlosser | VEHICLE KITCHEN. |
DE1136231B (en) * | 1959-07-20 | 1962-09-06 | August Schlosser | Device for heating water, food, canned food or the like in a motor vehicle |
DE1214560B (en) * | 1960-06-24 | 1966-04-14 | Arnot Designs Ltd | Device for preparing boiling water in vehicles |
DE1235171B (en) * | 1964-05-02 | 1967-02-23 | Dr Med Charles Zschau | Boiling water heater for motor vehicles |
US3521704A (en) * | 1968-07-22 | 1970-07-28 | James Earl Bridegum | Heat exchanger for recreational vehicle |
DE2829780A1 (en) * | 1978-07-06 | 1980-01-17 | Harald Scholl | Windscreen washer fluid heater for car - has heat exchanger coil tapped into engine coolant circuit using suitable valves |
DE2927680A1 (en) * | 1979-07-09 | 1981-01-29 | Heinz Sause | Heat store chemical cpd. used in heat engine, e.g. of vehicle - pref. is sodium sulphate deca:hydrate taking heat from cooling water, exhaust gas and lubricant |
DE3019786A1 (en) * | 1980-05-23 | 1981-12-03 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Storage heater for motor vehicles with IC engines - contains electric resistance heaters, so mains electricity can be used to preheat engine and interior of vehicle |
DE3638471A1 (en) * | 1985-11-21 | 1987-05-27 | Volkswagen Ag | Vehicle heater |
DE8533556U1 (en) * | 1985-11-28 | 1986-04-03 | Lilie, Walter, 7022 Leinfelden-Echterdingen | Liquid containers, in particular fresh and / or waste water tanks for land vehicles and water vehicles |
DE3919767A1 (en) * | 1989-06-16 | 1991-01-03 | Franz Stuckenberger | Engine waste heat recycling device - has connection unit and heat exchanger to heat water |
DE9000628U1 (en) * | 1990-01-22 | 1990-03-29 | Patett, Klaus, Dipl.-Ing., 3320 Salzgitter | Water cooling device for a water-cooled internal combustion engine |
DE9111844U1 (en) * | 1991-09-18 | 1991-12-05 | Shen, Chen Ming, Wu-Chie Village, Ilan | Drinking water heating device for the vehicle that exchanges engine heat |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29703700U1 (en) * | 1997-03-03 | 1998-07-09 | Kröger, Hans, Dipl.-Ing., 88718 Daisendorf | Antifreeze system |
US7264178B1 (en) * | 2006-07-20 | 2007-09-04 | Hugg Richard C | Foam spraying rig |
US8201615B2 (en) | 2008-02-22 | 2012-06-19 | Dow Global Technologies Llc | Heat storage devices |
CN105757979A (en) * | 2016-04-23 | 2016-07-13 | 广东合即得能源科技有限公司 | Domestic heat pump water heater system and heating method |
CN105905025A (en) * | 2016-04-23 | 2016-08-31 | 广东合即得能源科技有限公司 | Heat pump water heater system of fuel cell limo and heating method |
CN106016704A (en) * | 2016-07-08 | 2016-10-12 | 江苏法美瑞汽车发展有限公司 | Heat-exchange water tank for motor home |
WO2021224049A1 (en) * | 2020-05-07 | 2021-11-11 | Truma Gerätetechnik GmbH & Co. KG | Hot water storage system |
US20230152004A1 (en) * | 2020-05-07 | 2023-05-18 | Truma Geraetechnik Gmbh & Co. Kg | Hot water storage system |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |