EP2336680A2 - Air conditioning device with pressure transmitter and method for operating an air conditioning device - Google Patents
Air conditioning device with pressure transmitter and method for operating an air conditioning device Download PDFInfo
- Publication number
- EP2336680A2 EP2336680A2 EP10193863A EP10193863A EP2336680A2 EP 2336680 A2 EP2336680 A2 EP 2336680A2 EP 10193863 A EP10193863 A EP 10193863A EP 10193863 A EP10193863 A EP 10193863A EP 2336680 A2 EP2336680 A2 EP 2336680A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant
- working
- cylinder
- pressure
- conditioning device
- 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- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
Definitions
- the invention relates to a device for a pressure transmission between two working groups, in particular between two refrigerant circuits of an air conditioning device according to the preamble of claim 1.
- the invention relates to an air-conditioning device with two working circuits, in particular an air-conditioning device for cooling and / or heating with two refrigerant circuits, according to the preamble of patent claim 5.
- the invention relates to a method for operating an air conditioning device with two working circuits according to the preamble of patent claim 8.
- thermally driven heat pumps which operate by means of an ad- and Absorbtions revitalizes known.
- methods are known which use thermal energy to generate a cooling capacity. This is done via a coupling of a so-called Organic Rankine Cycle (ORC) process with a refrigerant process.
- ORC Organic Rankine Cycle
- the liquid refrigerant is brought to a high pressure by means of a liquid pump and evaporated while supplying heat in a generator.
- the vaporized, high pressure refrigerant is expanded in a turbine.
- the energy gained in this process is transmitted to the coupled circuit via a wave.
- the compressor in the coupled circuit compresses the refrigerant, the compressor being driven by the energy recovered in the other circuit.
- the temperature and pressure increase due to the action of the compressor. Heat is then dissipated in a condenser. After a subsequent expansion of the refrigerant, the temperature drops accordingly, so that, for example, a building can be cooled.
- the coupling of the two working groups is carried out in the prior art thus via a common shaft of the turbine and compressor, wherein the turbine is driven in a circuit and takes place via the shaft, a drive of the compressor of the other circuit.
- a disadvantage of such methods and devices is that they require a complex technique and a lot of space.
- the invention has for its object to provide a method, an apparatus and an air conditioning device, which provide a simple and space-saving coupling of two working groups.
- it is an object to provide a method, a device and an air-conditioning device which are easy to retrofit into existing solutions.
- a more effective solution should be created.
- the inventive device for a pressure transmission between two working groups is characterized in that this with a first double-acting cylinder with piston, which is arranged in a first working group, and a second double-acting cylinder with piston, which in a is arranged second working group, is formed, wherein the first piston is connected to the second piston via a linkage.
- the first cylinder acts as a pressure transmitter and the second cylinder as a pressure booster.
- an inlet to the cylinders is each optionally fluidically connectable to a first or a second cylinder side separated by the respective piston, wherein a drain from the respective cylinder corresponding to the second and the first cylinder side connected is.
- a control device is provided, by means of which a switchover of flow paths of the inlet to and / or from the first cylinder takes place in parallel to a switching over of the flow paths of the inlet to and / or from the second cylinder ,
- the air-conditioning device according to the invention with two working circuits in particular an air-conditioning device for cooling and / or heating with two refrigerant circuits, is characterized in that the working cycles are coupled via a device according to the invention.
- An embodiment of the present invention provides that the working groups are designed as integrated working groups, in particular a heat pump or cooling device.
- working groups are designed as separate working groups, in particular a heat pump or cooling device.
- the method according to the invention for operating an air-conditioning device with two working circuits is characterized in that a pressure of a first working cycle is transferred to a pressure of a second working cycle, the transmission taking place in particular by means of a (pressure) device according to the invention.
- An embodiment of the present invention provides that flow paths are switched to and / or from the cylinders so that pressure is transmitted continuously.
- Yet another embodiment of the present invention contemplates that flow paths to and / or from the cylinders are switched upon reaching maximum travel distances of the pistons.
- the device according to the invention and the method according to the invention can be used in various work processes.
- the invention can be used in building air conditioning or vehicle air conditioning.
- the invention can also be used, for example, as a retrofit module for existing heating systems or as an additional module for new heating appliances.
- the invention can also be integrated in a boiler.
- a refrigerant process heat is supplied by the boiler, so that the existing refrigerant in a refrigerant circuit evaporates.
- the required heat is not taken from a combustion chamber of the boiler, but from a boiler flow.
- the refrigerant vapor flows into the device designed as a pressure converter according to the invention, and the pressure converter, driven by the upper refrigerant process, drives the lower refrigerant process directly. This means that the refrigerant is compressed in the lower process.
- the evaporator absorbs heat from the outside air. In the condenser, the heat introduced from the boiler and from the outside air into the refrigerant process is transferred to the heating return. In the return of the heating circuit, the energy content of the water is about 0 kW.
- the energy content of the water for example, 12 kW, which are composed of 2 kW of ambient heat and 10 kW boiler heat. After firing through the boiler, the energy content is about 22 kW, because here the boiler has fired about 10 kW. Behind the generator 10 kW are taken to drive the refrigerant process. This means that the 12 kW that goes into the heating circuit consists of 10 kW of boiler heat and 2 kW of regenerative environmental heat, which corresponds to an efficiency of around 120%.
- the procedure is as follows.
- heat for example, solar heat, engine heat and the like
- a refrigerant evaporates.
- This refrigerant vapor flows into the device designed as a pressure converter, and the pressure converter drives the lower refrigerant process directly, driven by the upper refrigerant process.
- the refrigerant is compressed in the lower process.
- no turbines or the like are used to gain work and this work by means of z.
- the invention allows the use of waste heat for cooling. Furthermore, no expensive turbine for work transmission or the like is needed. As a result, significantly smaller dimensions can be realized in an adsorption process without it to performance losses comes. Due to the direct energy transfer, higher efficiencies can be achieved.
- Fig. 1 schematically shows in a block diagram an embodiment of the invention as an air conditioning device 100 with partially integrated working circuits 10, 20, schematically represented by the semicircular arrows.
- the device 100 comprises an evaporator 22, with which, for example, heat from, for example, a building, a vehicle interior or the like is taken, as shown by the arrow pointing to the evaporator 22.
- the device 100 comprises a generator 12, with which, for example, heat from, for example, a solar system or a car engine is fed in, as represented by the arrow pointing to the generator 12.
- the device 100 per working cycle 10, 20 comprises a capacitor 14, 22, wherein the two capacitors 14 and 22 in the embodiment according to Fig. 1 integrated as a common capacitor 13/23 are formed.
- the device 100 comprises a liquid pump 11, with which a liquid refrigerant is brought to a higher pressure.
- an expansion valve 21 is further provided, is reduced with the pressure.
- a device 30 designed as a pressure converter which is also included in the device 100, work is transferred from the upper working cycle 10 to the lower working cycle 20.
- a collection and / or expansion tank 14 located between the condenser 13/23 and the device 30, a collection and / or expansion tank 14. The individual components are connected to each other via corresponding lines, in particular fluidly connected.
- the same refrigerant such as the refrigerant R410a, R152a, R134 or the like.
- the liquid pump 11 increases the pressure of the liquid refrigerant flowing through the device 100 from the operating point 3 to the operating point 6.
- the liquid refrigerant supplied via the liquid pump 11 is evaporated from the operating point 6 to the operating point 7 while supplying heat (represented by the arrow pointing towards the generator 12).
- the vapor at the operating point 7 refrigerant flows into the pressure converter.
- the print converter includes such as in Fig.
- the pistons 61, 66 which are interconnected by means of a linkage 69.
- the pistons 61, 66 are each in a cylinder 60, 65 in which they can move freely from left to right and from right to left.
- the vapor refrigerant flows with, for example, a pressure of 17.6 bar in the right part of the cylinder 60.
- a part of the cylinder 60 is under pressure, which presses against a surface of the first piston 61.
- This pressure is transmitted to the other piston 66 due to the fact that the two pistons 61, 66 are interconnected by the linkage 69.
- the pistons 61, 66 move from left to right according to the pressure gradient.
- That in the Fig. 1 schematically illustrated method is, for example, a refrigerant method by heat from a boiler fed (from operating point 6 via the generator 12 to operating point 7), so that the refrigerant evaporates.
- the heat is not taken from the combustion chamber of the boiler, but from the boiler supply.
- the refrigerant vapor (operating point 7) flows into the pressure converter and the The pressure converter, powered by the upper refrigerant process or process, directly drives the lower refrigerant process.
- This means that the refrigerant is compressed in the lower process (from operating point 1 through the pressure converter to operating point 2).
- the evaporator 22 heat is absorbed from the outside air (from operating point 4 via the evaporator 22 to operating point 1).
- the condenser 13/23 the heat introduced from the boiler and from the outside air into the refrigerant process is delivered to a heating return (from operating point 5/2 via the condenser 13/23 to operating point 3).
- the air-conditioning device 100 thus has two working circuits 10, 20 and is formed in the illustrated embodiment as air conditioning for cooling and / or heating with two refrigerant circuits.
- the two working circuits 10, 20 are coupled to one another via a device 30 designed as a pressure converter.
- a device 30 designed as a pressure converter.
- the working cycles 10, 20 formed at least partially integrated.
- Fig. 2 schematically shows in a block diagram an embodiment of the invention as an air conditioning device with two separate working circuits 10, 20. Accordingly, no common capacitor 13/23 is provided. Otherwise, the air-conditioning devices 100 correspond to Fig. 1 and Fig. 2 so that a detailed description of already described components and functional processes or operating points can be dispensed with.
- the air-conditioning device 100 As well as the air conditioning device 100 after Fig. 1 indicates the air-conditioning device 100 Fig. 2 two working circuits 10, 20 on.
- the air-conditioning device 100 according to Fig. 2 is formed in the illustrated embodiment as air conditioning for cooling and / or heating with two refrigerant circuits.
- the two formed as a refrigerant circuit working circuits 10, 20 are coupled to each other via the designed as a pressure converter device 30.
- the working cycles 10, 20 are formed separately.
- the device 30 for pressure transmission between the two working circuits 10, 20, more precisely between the two refrigerant circuits of the air-conditioning device 100 comprises a first double-acting cylinder 60 with a piston 61, which is arranged in a first working circuit 10, and a second double-acting cylinder 65 with Piston 66, which is arranged in the second working circle 20.
- the first piston 61 is connected to the second piston 66 via a linkage 69, as more closely associated with FIG Fig. 4 is connected.
- Characterized in that the refrigerant circuits are formed separately, and different refrigerants can flow in the refrigerant circuits. Accordingly, for example, in the left refrigerant circuit 10, which is also called a drive circuit, the refrigerant R134a flows.
- the refrigerant circuit 20 which is also referred to as a cooling circuit flows, for example, the refrigerant R410A. Due to the separate design of the working circuits 10, 20, the refrigerant does not mix. Otherwise, the operation is the same as in the embodiment according to FIG Fig. 1 , Since the circuits 10, 20 are formed separately, instead of having a common capacitor 13/23, as in Fig. 1 , two capacitors 13, 23 are provided. In the first working circuit 10, the capacitor 13 is provided. The second working circuit 20 has the capacitor 23.
- Fig. 3 schematically shows a diagram in which the pressure over the enthalpy during the operation of the invention is shown.
- the operating points are shown in the diagram.
- isotherms are also drawn schematically, the states of the working fluid, more precisely of the refrigerant, are shown.
- the first working cycle 10 runs in accordance with the operating points 3 - 6 - 7 - 5.
- the second working cycle runs according to the operating points 1 - 2 - 3 - 4.
- Schematically, the various markings of the components of the air conditioning 100 are drawn on the diagram to the process to clarify.
- the refrigerant In the first refrigeration cycle 10, heat from, for example, a boiler is fed from operating point 6 via the generator 12 to operating point 7, so that the refrigerant evaporates.
- the pressure remains essentially the same, as indicated by the isobars.
- the enthalpy of the refrigerant increases accordingly due to the heat energy supply.
- the refrigerant vapor flows from the operating point 7 into the pressure converter, and the pressure converter, driven by the upper refrigerant process 10, directly drives the lower refrigerant process 20.
- the refrigerant From the operating point 5, the refrigerant flows via the condenser 13/23 or 13 to the operating point 3.
- the refrigerant via the generator heat energy to the outside, wherein the pressure remains substantially constant.
- the fluid pump 11 the refrigerant is brought to a higher pressure level at substantially constant enthalpy and reaches from operating point 3 via the fluid or liquid pump 11 to the operating point 6, whereby the first working circuit 10 closes.
- the refrigerant is compressed in the lower cooling process from operating point 1 via the pressure converter to operating point 2.
- the evaporator 22 Heat is absorbed from the outside air, so that the refrigerant is brought at a substantially constant pressure from the operating point 4 via the evaporator 22 to the operating point 1 to a higher enthalpy level.
- the condenser 13/23, 23 the heat introduced from the boiler and from the outside air into the refrigerant process is released to the heating return, whereby the enthalpy decreases again at substantially constant pressure.
- Fig. 4 shows schematically in four subfigures 4a to 4d, the operation of the inventive device 30 according to Fig. 1 and 2 in four different states.
- the device 30 for pressure transmission between the two working circuits 10, 20, more precisely between the two refrigerant circuits of the air-conditioning device 100 comprises a first double-acting cylinder 60 with a piston 61, which is arranged in a first working circuit 10, and a second double-acting cylinder 65 with Piston 66, which is arranged in the second working circle 20.
- the first piston 61 is connected to the second piston 66 via a linkage 69.
- the pistons move in operation simultaneously due to the connection via the linkage 69 from left to right and back.
- an adjusting means 41 (which leads from the operating point 7 to the left part of the cylinder 60) and an adjusting means 44 (which leads from the right part of the cylinder 60 to the operating point 5) are opened.
- the two other actuating means 42 (leading from the right part of the cylinder 60 to the first actuating means 41 or operating point 7) and 43 (leading from the left part of the cylinder 60 to the operating point 5 and the actuating means 44) are closed.
- the circuit of the adjusting means 51-54 looks accordingly.
- the adjusting means 51 (from operating point 1 to the left part of the cylinder 65) and 54 (from the right part of the cylinder 65 to the operating point 2) are opened.
- the adjusting means 52 (from the right part of the cylinder 65 to the operating point 1) and 53 (from the left part of the cylinder 65 to the operating point 2) are closed.
- the two pistons 61, 66 rightmost to the cylinders 60, 65 by opening and closing the flow paths of the refrigerant by means of driving the adjusting means 41-44 and 51-54 at the cylinder 60 in the pressure transfer, the process is reversed.
- the flow path for under pressure P2 (17.6 bar) refrigerant in the left part of the cylinder 1 is closed.
- the flow path for the refrigerant under pressure P2 (17.6 bar) is now open in the right-hand part of the cylinder 60.
- the adjusting means 42, 43 and 52, 53 are open.
- the right part of the cylinder 1 is under the pressure P2 of 17.6 bar and the left part under the pressure P1 of 10.4 bar.
- the flow paths of the refrigerant to the condenser 13/23, 23 (operating point 5) are simultaneously changed by the respective, designed as a valve actuating means 43rd , 53 to the condenser 13/23, 23 is closed and the lower right valve 44, 54 to the condenser 13/23, 23 is opened.
- the two pistons 61, 66 now reverse their direction and move from right to left, that is in the direction of the first cylinder 60. There is again a pressure transfer from the upper (first, 10) working cycle to the lower (second, 20) working cycle , The process is as described above. However, the pistons 61, 66 now move from right to left, that is from the second cylinder 60 to the first cylinder 65, as indicated by Fig. 4c can be seen. When the pistons 61, 66 have moved all the way to the left, the process is reversed again by switching the flow paths by means of the valves.
- both refrigerant streams are collected and, from then on, passed into the condenser 13/23, 23 in which the refrigerant condenses.
- a portion of the refrigerant flows in the lower working circuit 20 to the evaporator and another part is brought by means of the liquid pump 11 to pressure and fed to the generator 12.
- Fig. 5 shows schematically in two subfigures two embodiments of the invention, once without (5a) and once with (5b) heat storage.
- the climate device 100 has solar collectors 200. This heat is recovered from solar radiation and fed to the generator 12.
- the generator 12 heats the refrigerant and the heated refrigerant enters the pressure converter.
- the refrigerant flows to the capacitor 13/23 arranged in an outer area 300.
- temperatures of 35 ° C for example, the refrigerant, which has a temperature of 40 ° C, cooled.
- the cooled to about 35 ° C refrigerant then flows on to a node where the until then integrated working groups 10, 20 separate.
- the refrigerant branches to the generator 12.
- the generator 12 the refrigerant is reheated as described above.
- the refrigerant flows to the evaporator 22.
- the refrigerant evaporates at a prevailing ambient temperature of 24 ° C - for example, a room temperature - and takes in the evaporation, for example, heat at a temperature of 15 ° C.
- the environment is cooled accordingly.
- the heated refrigerant passes to the pressure converter by the refrigerant is driven by the first working circuit 10, compressed and passes together with the refrigerant from the first working circuit into the collecting container 14.
- the refrigerant in the outdoor area in Fig.
- a heat accumulator 28 is provided.
- the heat of the refrigerant is thus temporarily stored in the heat storage designed as a hot water tank.
- Both embodiments according to Fig. 5a and 5b have at least partially integrated working circuits 10, 20, so that the same refrigerant is used for both circuits.
- Fig. 6 schematically shows in a block diagram a further embodiment of the invention in a heating circuit with boiler.
- the energy content of the refrigerant formed as water is about 0 kW.
- the energy content of the water is 12 kW. These are composed of 2 kW of ambient heat and 10 kW of boiler heat.
- the energy content is about 22 kW, because here the boiler has fired about 10 kW of heat energy.
- 10 kW are taken to drive the refrigerant process.
- the air-conditioning device 100 is according to Fig. 6 as air conditioning with partially integrated working circuits 10, 20 is formed. The basic structure has been described above accordingly, so that here a detailed description can be omitted.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung für eine Druckübertragung zwischen zwei Arbeitskreisen, insbesondere zwischen zwei Kältemittelkreisen einer Klimatisiervorrichtung nach dem Oberbegriff des Patentanspruches 1.The invention relates to a device for a pressure transmission between two working groups, in particular between two refrigerant circuits of an air conditioning device according to the preamble of
Weiter betrifft die Erfindung eine Klimatisiervorrichtung mit zwei Arbeitskreisläufen, insbesondere eine Klimatisiereinrichtung zum Kühlen und/oder Wärmen mit zwei Kältemittelkreisen, nach dem Oberbegriff des Patentanspruchs 5.Furthermore, the invention relates to an air-conditioning device with two working circuits, in particular an air-conditioning device for cooling and / or heating with two refrigerant circuits, according to the preamble of
Zudem betrifft die Erfindung ein Verfahren zum Betreiben einer Klimatisiervorrichtung mit zwei Arbeitskreisläufen nach dem Oberbegriff des Patentanspruchs 8.In addition, the invention relates to a method for operating an air conditioning device with two working circuits according to the preamble of patent claim 8.
Aus dem Stand der Technik sind thermisch angetriebene Wärmepumpen, die mittels eines Ad- und Absorbtionsprozesses arbeiten, bekannt. Insbesondere sind Verfahren bekannt, die Wärmeenergie nutzen, um eine Kühlleistung zu generieren. Dies erfolgt über eine Kopplung eines sogenannten Organic Rankine Cycle Verfahrens (ORC Verfahren) mit einem Kältemittelprozess. In dem ORC-Kreislauf und dem Kreislauf des Kältemittelprozesses befindet sich üblicherweise ein Kältemittel, beispielsweise R410A oder dergleichen. In dem ORC-Verfahren wird das flüssige Kältemittel mittels einer Flüssigkeitspumpe auf einen hohen Druck gebracht und unter Wärmezufuhr in einem Generator verdampft. Das verdampfte, unter hohem Druck stehende Kältemittel wird in einer Turbine entspannt. Die hierbei gewonnene Energie wird über eine Welle an den gekoppelten Kreislauf übertragen. Der in dem gekoppelten Kreislauf befindliche Verdichter verdichtet das Kältemittel, wobei der Verdichter durch die in dem anderen Kreislauf gewonnene Energie angetrieben wird. Die Temperatur und der Druck steigen durch das Einwirken des Verdichters an. In einem Kondensator wird anschließend Wärme abgeführt. Nach einer nachfolgenden Expansion des Kältemittels sinkt die Temperatur entsprechend, sodass damit zum Beispiel ein Gebäude gekühlt werden kann. Die Kopplung der beiden Arbeitskreise erfolgt im Stand der Technik somit über eine gemeinsame Welle von Turbine und Verdichter, wobei die Turbine in einem Kreislauf angetrieben wird und über die Welle ein Antrieb des Verdichters des anderen Kreislaufs erfolgt.From the prior art, thermally driven heat pumps, which operate by means of an ad- and Absorbtionsprozesses known. In particular, methods are known which use thermal energy to generate a cooling capacity. This is done via a coupling of a so-called Organic Rankine Cycle (ORC) process with a refrigerant process. In the ORC cycle and the cycle of the refrigerant process, there is usually a refrigerant such as R410A or the like. In the ORC method, the liquid refrigerant is brought to a high pressure by means of a liquid pump and evaporated while supplying heat in a generator. The vaporized, high pressure refrigerant is expanded in a turbine. The energy gained in this process is transmitted to the coupled circuit via a wave. The compressor in the coupled circuit compresses the refrigerant, the compressor being driven by the energy recovered in the other circuit. The temperature and pressure increase due to the action of the compressor. Heat is then dissipated in a condenser. After a subsequent expansion of the refrigerant, the temperature drops accordingly, so that, for example, a building can be cooled. The coupling of the two working groups is carried out in the prior art thus via a common shaft of the turbine and compressor, wherein the turbine is driven in a circuit and takes place via the shaft, a drive of the compressor of the other circuit.
Nachteilig an derartigen Verfahren und Vorrichtungen ist, dass diese eine komplexe Technik und sehr viel Platz erfordern.A disadvantage of such methods and devices is that they require a complex technique and a lot of space.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren, eine Vorrichtung und eine Klimatisiervorrichtung zu schaffen, welche eine einfache und platzsparende Kopplung zweier Arbeitskreise schaffen. Insbesondere ist es eine Aufgabe, ein Verfahren, eine Vorrichtung und eine Klimatisiervorrichtung zu schaffen, welche leicht nachrüstbar in vorhandene Lösungen sind. Zudem soll eine effektivere Lösung geschaffen werden.The invention has for its object to provide a method, an apparatus and an air conditioning device, which provide a simple and space-saving coupling of two working groups. In particular, it is an object to provide a method, a device and an air-conditioning device which are easy to retrofit into existing solutions. In addition, a more effective solution should be created.
Erfindungsgemäß wird dies durch die Gegenstände mit den Merkmalen des Patentanspruches 1, des Patentanspruchs 5 und des Patentanspruchs 8 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.This is achieved by the objects with the features of
Die erfindungsgemäße Vorrichtung für eine Druckübertragung zwischen zwei Arbeitskreisen, insbesondere zwischen zwei Kältemittelkreisen einer Klimatisiervorrichtung, ist dadurch gekennzeichnet, dass diese mit einem ersten doppeltwirkenden Zylinder mit Kolben, welcher in einem ersten Arbeitskreis angeordnet ist, und einem zweiten doppeltwirkenden Zylinder mit Kolben, welcher in einem zweiten Arbeitskreis angeordnet ist, ausgebildet ist, wobei der erste Kolben mit dem zweiten Kolben über ein Gestänge verbunden ist.The inventive device for a pressure transmission between two working groups, in particular between two refrigerant circuits of a Klimatisiervorrichtung, is characterized in that this with a first double-acting cylinder with piston, which is arranged in a first working group, and a second double-acting cylinder with piston, which in a is arranged second working group, is formed, wherein the first piston is connected to the second piston via a linkage.
In einer Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass der erste Zylinder als Druckübertrager und der zweite Zylinder als Druckerhöher wirken.In one embodiment of the present invention, it is provided that the first cylinder acts as a pressure transmitter and the second cylinder as a pressure booster.
Bei einer weiteren Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass ein Zulauf zu den Zylindern jeweils wahlweise mit einer ersten oder einer zweiten durch den jeweiligen Kolben getrennten Zylinderseite fluidisch verbindbar ist, wobei ein Ablauf von dem jeweiligen Zylinder entsprechend mit der zweiten bzw. der ersten Zylinderseite verbunden ist.In a further embodiment of the present invention, it is provided that an inlet to the cylinders is each optionally fluidically connectable to a first or a second cylinder side separated by the respective piston, wherein a drain from the respective cylinder corresponding to the second and the first cylinder side connected is.
In noch einer weiteren Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass eine Steuereinrichtung vorgesehen ist, mittels der ein Umschalten von Fließwegen des Zulaufs zu und/oder von dem ersten Zylinder parallel zu einem Umschalten der Fließwege des Zulaufs zu und/oder von dem zweiten Zylinder erfolgt.
Die erfindungsgemäße Klimatisiervorrichtung mit zwei Arbeitskreisläufen, insbesondere eine Klimatisiereinrichtung zum Kühlen und/oder Wärmen mit zwei Kältemittelkreisen, ist dadurch gekennzeichnet, dass die Arbeitskreisläufe über eine erfindungsgemäße Vorrichtung gekoppelt sind.In yet another embodiment of the present invention, it is provided that a control device is provided, by means of which a switchover of flow paths of the inlet to and / or from the first cylinder takes place in parallel to a switching over of the flow paths of the inlet to and / or from the second cylinder ,
The air-conditioning device according to the invention with two working circuits, in particular an air-conditioning device for cooling and / or heating with two refrigerant circuits, is characterized in that the working cycles are coupled via a device according to the invention.
Ein Ausführungsbeispiel der vorliegenden Erfindung sieht vor, dass die Arbeitskreise als integrierte Arbeitskreise, insbesondere einer Wärmepumpe oder Kühleinrichtung, ausgebildet sind.An embodiment of the present invention provides that the working groups are designed as integrated working groups, in particular a heat pump or cooling device.
Ein weiteres Ausführungsbeispiel der vorliegenden Erfindung sieht vor, dass die Arbeitskreise als getrennte Arbeitskreise, insbesondere einer Wärmepumpe oder Kühleinrichtung, ausgebildet sind.Another embodiment of the present invention provides that the working groups are designed as separate working groups, in particular a heat pump or cooling device.
Das erfindungsgemäße Verfahren zum Betreiben einer Klimatisiervorrichtung mit zwei Arbeitskreisläufen ist dadurch gekennzeichnet, dass ein Druck eines ersten Arbeitskreislaufs auf einen Druck eines zweiten Arbeitskreislaufs übertragen wird, wobei die Übertragung insbesondere mittels einer erfindungsgemäßen (Druck-)Vorrichtung erfolgt.The method according to the invention for operating an air-conditioning device with two working circuits is characterized in that a pressure of a first working cycle is transferred to a pressure of a second working cycle, the transmission taking place in particular by means of a (pressure) device according to the invention.
Ein Ausführungsbeispiel der vorliegenden Erfindung sieht vor, dass Fließwege zu und/oder von den Zylindern umgeschaltet werden, sodass ein Druck kontinuierlich übertragen wird.An embodiment of the present invention provides that flow paths are switched to and / or from the cylinders so that pressure is transmitted continuously.
Noch ein weiteres Ausführungsbeispiel der vorliegenden Erfindung sieht vor, dass Fließwege zu und/oder von den Zylindern bei Erreichen von maximalen Verfahrwegen der Kolben umgeschaltet werden.Yet another embodiment of the present invention contemplates that flow paths to and / or from the cylinders are switched upon reaching maximum travel distances of the pistons.
Mit der erfindungsgemäßen Vorrichtung, der erfindungsgemäßen Klimatisiervorrichtung und dem erfindungsgemäßen Verfahren werden insbesondere die folgenden Vorteile realisiert:With the device according to the invention, the air-conditioning device according to the invention and the method according to the invention, in particular the following advantages are realized:
Die erfindungsgemäße Vorrichtung und das erfindungsgemäße Verfahren sind in verschiedenen Arbeitsprozessen einsetzbar. So ist die Erfindung beispielsweise in der Gebäudeklimatisierung oder Fahrzeugklimatisierung einsetzbar. Die Erfindung ist beispielsweise auch als Nachrüstmodul für bestehende Heizungsanlagen oder als Zusatzmodul für neue Heizgeräte einsetzbar. Die Erfindung ist zudem auch in einen Kessel integrierbar.The device according to the invention and the method according to the invention can be used in various work processes. For example, the invention can be used in building air conditioning or vehicle air conditioning. The invention can also be used, for example, as a retrofit module for existing heating systems or as an additional module for new heating appliances. The invention can also be integrated in a boiler.
Bei einer Ausführung als Zusatzmodul in einem Öl-, Gas- oder Pelletkessel, wodurch der Kessel zu einer sogenannten Gaswärmepumpe umfunkionierbar ist, wäre die Funktionsweise etwa Folgende:In an embodiment as an additional module in an oil, gas or pellet boiler, whereby the boiler is umfunkionierbar to a so-called gas heat pump, the operation would be as follows:
In einen Kältemittelprozess wird Wärme von dem Kessel eingespeist, sodass das in einem Kältekreis vorhandene Kältemittel verdampft. Die dafür erforderliche Wärme wird nicht aus einem Brennraum des Kessels, sondern aus einem Kesselvorlauf entnommen. Der Kältemitteldampf strömt in die als Druckkonverter ausgebildete erfindungsgemäße Vorrichtung und der Druckkonverter treibt, angetrieben vom oberen Kältemittelprozess, den unteren Kältemittelprozess direkt an. Das heißt, dass das Kältemittel im unteren Prozess verdichtet wird. Im Verdampfer wird Wärme aus der Außenluft aufgenommen. Im Kondensator wird die vom Kessel und aus der Außenluft in den Kältemittelprozess eingebrachte Wärme an den Heizungsrücklauf abgegeben. Im Rücklauf des Heizkreises ist der Energieinhalt des Wassers etwa 0 kW. In Strömungsrichtung hinter dem Kondensator beträgt der Energieinhalt des Wassers beispielsweise 12 kW, welche sich aus 2 kW Umweltwärme und 10 kW Kesselwärme zusammensetzen. Nach Befeuerung durch den Kessel beträgt der Energieinhalt etwa 22 kW, denn hier hat der Kessel etwa 10 kW zugefeuert. Hinter dem Generator werden 10 kW entnommen, um den Kältemittelprozess anzutreiben. Das heißt also, dass sich die 12 kW die in den Heizkreis gehen aus 10 kW Kesselwärme und 2 kW regenerativer Umweltwärme zusammensetzen, was einem Wirkungsgrad von etwa 120 % entspricht.In a refrigerant process, heat is supplied by the boiler, so that the existing refrigerant in a refrigerant circuit evaporates. The required heat is not taken from a combustion chamber of the boiler, but from a boiler flow. The refrigerant vapor flows into the device designed as a pressure converter according to the invention, and the pressure converter, driven by the upper refrigerant process, drives the lower refrigerant process directly. This means that the refrigerant is compressed in the lower process. The evaporator absorbs heat from the outside air. In the condenser, the heat introduced from the boiler and from the outside air into the refrigerant process is transferred to the heating return. In the return of the heating circuit, the energy content of the water is about 0 kW. In the flow direction behind the condenser, the energy content of the water, for example, 12 kW, which are composed of 2 kW of ambient heat and 10 kW boiler heat. After firing through the boiler, the energy content is about 22 kW, because here the boiler has fired about 10 kW. Behind the
Bei einer Ausführung in einem Klimatisierungsprozess ist der Ablauf wie folgt. In einen Kältemittelprozess wird Wärme, beispielsweise Solarwärme, Motorabwärme und dergleichen, eingespeist, sodass ein Kältemittel verdampft. Dieser Kältemitteldampf strömt in die als Druckkonverter ausgebildete Vorrichtung und der Druckkonverter treibt angetrieben vom oberen Kältemittelprozess den unteren Kältemittelprozess direkt an. Das heißt, dass das Kältemittel im unteren Prozess verdichtet wird. In dem oberen Prozess werden dabei keine Turbinen oder dergleichen verwendet, um Arbeit zu gewinnen und diese Arbeit mittels z. B. einer Welle auf einen herkömmlichen Verdichter zu übertragen, der das Kältemittel im unteren Prozess verdichtet. Mit dem Druckkonverter wird stattdessen die Arbeit aus dem oberen Prozess direkt auf den unteren Prozess übertragen.In an embodiment in an air conditioning process, the procedure is as follows. In a refrigerant process, heat, for example, solar heat, engine heat and the like, fed, so that a refrigerant evaporates. This refrigerant vapor flows into the device designed as a pressure converter, and the pressure converter drives the lower refrigerant process directly, driven by the upper refrigerant process. This means that the refrigerant is compressed in the lower process. In the upper process while no turbines or the like are used to gain work and this work by means of z. B. a shaft to a conventional compressor, which compresses the refrigerant in the lower process. Instead, the print converter transfers work from the upper process directly to the lower process.
Mit der Erfindung sind somit die folgenden Vorteile realisierbar.
Die Erfindung ermöglicht die Nutzung von Abwärme zur Kühlung. Weiterhin wird keine teure Turbine zur Arbeitsübertragung oder dergleichen benötigt. Dadurch können deutlich kleinere Abmessungen bei einem Ad- Absorbtionsprozess realisiert werden, ohne dass es zu Leistungseinbußen kommt. Aufgrund der direkten Energieübertragung sind höhere Wirkungsgrade erreichbar.With the invention thus the following advantages can be realized.
The invention allows the use of waste heat for cooling. Furthermore, no expensive turbine for work transmission or the like is needed. As a result, significantly smaller dimensions can be realized in an adsorption process without it to performance losses comes. Due to the direct energy transfer, higher efficiencies can be achieved.
Die Zeichnungen stellen mehrere Ausführungsbeispiele der Erfindung dar und zeigen in den Figuren:
- Fig. 1
- schematisch in einem Blockdiagramm eine Ausführungsform der Erfindung als Klimatisiervorrichtung mit teilweise integrierten Arbeitskreisläufen,
- Fig. 2
- schematisch in einem Blockdiagramm eine Ausführungsform der Erfindung als Klimatisiervorrichtung mit zwei getrennten Arbeitskreisläufen,
- Fig. 3
- schematisch ein Diagramm, bei dem der Druck über der Enthalpie während des Betriebs der Erfindung dargestellt ist,
- Fig. 4
- schematisch in vier Unterfiguren die Arbeitsweise der erfindungsgemäßen Vorrichtung in vier unterschiedlichen Zuständen,
- Fig. 5
- schematisch in zwei Unterfiguren zwei Ausführungsformen der Erfindung, einmal ohne (5a) und einmal mit (5b) Wärmespeicher und
- Fig. 6
- schematisch in einem Blockschaltbild eine weitere Ausführungsform der Erfindung in einem Heizkreis mit Kessel.
- Fig. 1
- 1 is a schematic block diagram of an embodiment of the invention as an air-conditioning device with partially integrated work cycles;
- Fig. 2
- 1 is a schematic block diagram of an embodiment of the invention as an air-conditioning device with two separate working cycles;
- Fig. 3
- 1 is a schematic diagram illustrating the pressure over enthalpy during operation of the invention;
- Fig. 4
- schematically in four subfigures the operation of the device according to the invention in four different states,
- Fig. 5
- schematically in two sub-figures, two embodiments of the invention, once without (5a) and once with (5b) heat storage and
- Fig. 6
- schematically in a block diagram a further embodiment of the invention in a heating circuit with boiler.
Das in der
Die Klimatisiervorrichtung 100 nach
Wie auch die Klimatisiervorrichtung 100 nach
In dem ersten Kältekreislauf 10 wird von Betriebspunkt 6 Wärme von beispielsweise einem Kessel über den Generator 12 zu Betriebspunkt 7 eingespeist, sodass das Kältemittel verdampft. Der Druck bleibt, wie durch die Isobare angedeutet, im Wesentlichen gleich. Die Enthalpie des Kältemittels erhöht sich aufgrund der Wärmeenergiezufuhr entsprechend. Der Kältemitteldampf strömt vom Betriebspunkt 7 in den Druckkonverter und der Druckkonverter treibt angetrieben von dem oberen Kältemittelprozess 10 den unteren Kältemittelprozess 20 direkt an. Vom Betriebspunkt 5 strömt das Kältemittel über den Kondensator 13/23 bzw. 13 zum Betriebspunkt 3. Dabei gibt das Kältemittel über den Generator Wärmeenergie nach außen ab, wobei der Druck im Wesentlichen konstant bleibt. Durch die Fluidpumpe 11 wird das Kältemittel auf ein höheres Druckniveau bei im Wesentlichen gleich bleibender Enthalpie gebracht und erreicht von Betriebspunkt 3 über die Fluid- oder Flüssigkeitspumpe 11 den Betriebspunkt 6, wodurch sich der erste Arbeitskreislauf 10 schließt.In the
In dem zweiten Kühlkreislauf 20 wird das Kältemittel im unteren Kälteprozess von Betriebspunkt 1 über den Druckkonverter zu Betriebspunkt 2 verdichtet. Im Verdampfer 22 wird Wärme aus der Außenluft aufgenommen, sodass das Kältemittel bei im Wesentlichen gleichbleibendem Druck von dem Betriebspunkt 4 über den Verdampfer 22 zu dem Betriebspunkt 1 auf ein höheres Enthalpieniveau gebracht wird. In dem Kondensator 13/23, 23 wird die vom Kessel und aus der Außenluft in den Kältemittelprozess eingebrachte Wärme an den Heizungsrücklauf abgegeben, wodurch sich bei im Wesentlichen gleichbleibendem Druck die Enthalpie wieder verringert.In the
Die beiden Kolben 61, 66 kehren nun ihre Richtung um und bewegen sich von rechts nach links, das heißt in Richtung erster Zylinder 60. Es findet wieder eine Druckübertragung vom oberen (ersten, 10) Arbeitskreislauf auf den unteren (zweiten, 20) Arbeitskreislauf statt. Der Prozess läuft wie zuvor beschrieben ab. Die Kolben 61, 66 bewegen sich jetzt jedoch von rechts nach links, das heißt vom zweiten Zylinder 60 zum ersten Zylinder 65, wie es anhand von
Im Sammel-/Expansionsbehälter 14 werden beide Kältemittelströme gesammelt und von da an in den Kondensator 13/23, 23 geleitet, in dem das Kältemittel kondensiert. Im Betriebspunkt 3 strömt ein Teil des Kältemittels in den unteren Arbeitskreislauf 20 zum Verdampfer und ein anderer Teil wird mittels der Flüssigkeitspumpe 11 auf Druck gebracht und zum Generator 12 geführt.In the collection /
Claims (10)
die Arbeitskreisläufe (10, 20) über eine Vorrichtung (30) nach einem der Ansprüche 1 bis 4 gekoppelt sind.Air conditioning device (100) with two working circuits (10, 20), in particular an air conditioning device for cooling and / or heating with two refrigerant circuits, characterized in that
the working circuits (10, 20) are coupled via a device (30) according to one of claims 1 to 4.
ein Druck (P1) eines ersten Arbeitskreislaufs (10) auf einen Druck (P2) eines zweiten Arbeitskreislaufs (20) übertragen wird, wobei die Übertragung insbesondere mittels einer Vorrichtung (30) nach einem der Ansprüche 1 bis 4 erfolgt.Method for operating an air-conditioning device (100) with two working circuits (10, 20), characterized in that
a pressure (P1) of a first working cycle (10) is transferred to a pressure (P2) of a second working cycle (20), the transmission taking place in particular by means of a device (30) according to one of claims 1 to 4.
Fließwege zu und/oder von den Zylindern (60, 65) umgeschaltet werden, sodass ein Druck (P1) kontinuierlich übertragen wird.A method according to claim 8, characterized in that
Flow paths to and / or from the cylinders (60, 65) are switched so that a pressure (P1) is transmitted continuously.
Fließwege zu und/oder von den Zylindern (60, 65) bei Erreichen von maximalen Verfahrwegen der Kolben (61, 66) umgeschaltet werden.A method according to claim 9, characterized in that
Flow paths to and / or from the cylinders (60, 65) when reaching maximum travel of the piston (61, 66) are switched.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910057630 DE102009057630A1 (en) | 2009-12-09 | 2009-12-09 | Air conditioning device and thermally operated heat pump module with pressure transducer and method of operation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2336680A2 true EP2336680A2 (en) | 2011-06-22 |
EP2336680A3 EP2336680A3 (en) | 2014-03-19 |
Family
ID=43806833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10193863.7A Withdrawn EP2336680A3 (en) | 2009-12-09 | 2010-12-06 | Air conditioning device with pressure transmitter and method for operating an air conditioning device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2336680A3 (en) |
DE (2) | DE202009018245U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105910386A (en) * | 2016-06-06 | 2016-08-31 | 洛阳普瑞曼自动控制技术有限公司 | Intelligent petroleum benzine conversion device |
CN112534135A (en) * | 2018-07-22 | 2021-03-19 | 奥弗技术Stp有限责任公司 | Mechanical refrigeration system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2918946A4 (en) * | 2012-09-13 | 2016-10-05 | Bingxin Gong | Refrigeration apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988901A (en) * | 1975-02-18 | 1976-11-02 | Scientific-Atlanta, Inc. | Dual loop heat pump system |
US4779427A (en) * | 1988-01-22 | 1988-10-25 | E. Squared Incorporated | Heat actuated heat pump |
SE9603170D0 (en) * | 1996-08-30 | 1996-08-30 | Bengt Adolfsson | Method and apparatus of a soft drink dispenser |
US6138457A (en) * | 1998-02-27 | 2000-10-31 | Applied Power Technology Incorporated | Combustion powered cooling system |
DE19813220C2 (en) * | 1998-03-26 | 2002-12-12 | Univ Dresden Tech | Piston expansion machine and method for incorporating this machine into a transcritical compression refrigeration process |
DE102005053589A1 (en) * | 2005-11-10 | 2007-05-16 | Richard Engelmann | Solar powered chiller |
-
2009
- 2009-12-09 DE DE202009018245U patent/DE202009018245U1/en not_active Expired - Lifetime
- 2009-12-09 DE DE200910057630 patent/DE102009057630A1/en not_active Ceased
-
2010
- 2010-12-06 EP EP10193863.7A patent/EP2336680A3/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105910386A (en) * | 2016-06-06 | 2016-08-31 | 洛阳普瑞曼自动控制技术有限公司 | Intelligent petroleum benzine conversion device |
CN112534135A (en) * | 2018-07-22 | 2021-03-19 | 奥弗技术Stp有限责任公司 | Mechanical refrigeration system |
Also Published As
Publication number | Publication date |
---|---|
DE202009018245U1 (en) | 2011-05-12 |
EP2336680A3 (en) | 2014-03-19 |
DE102009057630A1 (en) | 2011-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2660432B1 (en) | Method and device for recovering heat and converting it to mechanical performance in a drive system from motor vehicles | |
DE102008057202A1 (en) | Rankine circle | |
DE102009035522B4 (en) | Method and device for improved energy utilization of the heat energy of internal combustion engines | |
EP2574740A1 (en) | Assembly for storing thermal energy | |
DE102010051976A1 (en) | Air conditioner for motor vehicle, has heat exchanger that is thermally connected with drive unit, particularly combustion engine, by coolant circuit, and two condensers are provided, where one of condenser has another downstream condenser | |
DE102012010697A1 (en) | Air conditioning system for motor vehicle, has vaporizer that is formed as refrigerant-coolant heat exchanger which is connected with recuperators by vaporizer-sided coolant circuits | |
WO2009024282A2 (en) | Tempering device on the basis of a heat pump | |
EP2846017A1 (en) | Heat exchange device and drive unit for a motor vehicle | |
WO2012055555A2 (en) | Internal combustion engine | |
EP2321592B1 (en) | Heat pump or refrigeration device and method for operating a heat pump or refrigeration device | |
EP1925475A2 (en) | Combination of a cold air circuit for automotive interior climate control with a Rankine cycle | |
EP2336680A2 (en) | Air conditioning device with pressure transmitter and method for operating an air conditioning device | |
WO2007054204A1 (en) | Solar-operated refrigerator | |
DE102012223024A1 (en) | Waste heat recovery unit for motor-vehicle drive with internal combustion engine, has motor-driven side and output side cooling circuit that is connected to thermodynamic circuit to assist condensation of working medium | |
DE102011003607A1 (en) | Method for improving mechanical power output of expansion machine for driving e.g. generator, involves vaporizing working medium using exhaust gas heat from combustion engine and expanding working medium to produce mechanical force | |
DE112017005948T5 (en) | Air conditioning device | |
DE102007034025A1 (en) | Hydraulic hybrid drive for vehicle i.e. motor vehicle, has heat regeneration device regenerating heat energy from hot exhaust gas and/or cooling agent of internal combustion engine and supplying heat energy into part of hydraulic system | |
DE102008053066A1 (en) | Heat recovery system for motor vehicle, has Rankine-circuit provided with working medium, which is cooled to condensation temperature by condenser, where condensation temperature is not smaller than preset degree Celsius | |
DE102008005036A1 (en) | Internal combustion engine, has heat recovery device comprising conveying unit for compressing liquid working medium to large extent, where mixture of water with ethanol, and methanol is used as working medium | |
DE4413032C1 (en) | Sorption air-conditioning system (air-conditioning plant, air-conditioning set) and method for operating such a system | |
EP3152487B1 (en) | Anordnung mit mehreren wärmeübertragern und verfahren zum verdampfen eines arbeitsmediums | |
DE102015004495A1 (en) | Apparatus for waste heat recovery and method for its operation | |
DE102013016461A1 (en) | Method for operating a low-temperature power plant, and low-temperature power plant itself | |
DE112019004542T5 (en) | Heat recovery system with a collecting tank heated by a coolant fluid | |
WO2014117924A2 (en) | Method for operating a low-temperature power plant, and low-temperature power plant itself |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F25B 27/00 20060101AFI20140212BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20140920 |