WO2016020379A1

WO2016020379A1 - Container, generator device, and method for transporting goods

Info

Publication number: WO2016020379A1
Application number: PCT/EP2015/067953
Authority: WO
Inventors: Peter Noisten; Vicor Norrefeldt; Lukas Rohr
Original assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority date: 2014-08-05
Filing date: 2015-08-04
Publication date: 2016-02-11
Also published as: DE102014215401A1; EP3177881C0; EP3177881B1; EP3177881A1; ES2955735T3

Abstract

The invention relates to a container (1) with lateral walls (110, 120), a base (130), a cover (140), a front wall (150), and a rear wall (160). Each wall has an inner face (112, 122, 132, 142), an outer face (111, 121, 131, 141), and an insulating layer (170) lying between the inner and outer face. The container (1) further has a cooling device (300) which is designed to provide a heat transfer medium with a specifiable temperature and/or humidity, and the container has a low-pressure pump device (310) which is designed to circulate the heat transfer medium with a first pressure in the interior (101) of the container (1). The container (1) further has a high-pressure pump device (320) which is designed to circulate the heat transfer medium with a second pressure in the interior (101) of the container (1), said second pressure being higher than the first pressure. The invention further relates to a method for transporting goods using such a container and to a generator device (200) for assembling on a container.

Description

Container, generator device and

Method of transporting goods

The invention relates to a container having side walls, a floor, a ceiling, a front wall and a rear wall, each wall having an inside and an outside and an insulating layer therebetween, the container further comprising a cooling device, which is adapted to a heat transfer medium provide with predetermined temperature and / or humidity, and the container has a low-pressure conveying device which is adapted to circulate the heat transfer medium with a first pressure in the interior of the container. Furthermore, the invention relates to a generator device for mounting on a container, containing an internal combustion engine and an electric generator. Finally, the invention relates to a method for transporting goods, in which the goods are introduced into a container having side walls, a floor, a ceiling, a front wall and a rear wall, wherein each wall has an inside and an outside and an intermediate insulation layer, and the container further comprises a cooling device, with which a heat transfer medium with predeterminable temperature and / or humidity is provided, which is circulated with a low-pressure conveyor at a first pressure in the interior of the container.

Devices and methods of the type mentioned can be used to transport perishable goods, such as cut flowers, fruits and vegetables, meat or fish. These goods can be protected from spoilage by cooling during transport. A container of the type mentioned is from the

EP 2 535 296 AI known. This known container has on all sides insulated walls which zengren ^¬ an interior zen. The container has the external dimensions of a known per se ISO Freight Containers according to ISO 668. By means of a chiller integrated in the container, the temperature in the interior of the container can be adjusted to predefinable values. The cooling of the goods is done by circulating cold air in the interior of the container.

This known container has the disadvantage that the heat transfer medium provided by the refrigerating machine usually circulates only on the outer surface of the goods, i.

between the outermost cargo and the side walls. The central area of the charge is cooled in known containers only via heat conduction. As a result, a longer period of time passes until the target temperature for transport has been reached, provided that the goods, as is usually the case, are not pre-cooled and are loaded into the container. In particular, goods which emit heat energy during the ripening, for example bananas, can be damaged as a result.

The chiller of the known cargo container is usually operated with electrical energy. This electrical energy is usually purchased from the public power grid at the storage location of a container. When transporting ships, the electrical energy from the electrical system of the

Ship related. Generator devices are available for the storage of the container at remote locations or road transport, which generate the electrical energy for the cooling device by means of a mostly spark-ignited internal combustion engine and an electric generator. The generator device may be arranged in a separate housing, which on the outside of the

Container can be screwed. However, the known generator devices have the

Disadvantage that the generator power and the necessary mechanical Antriebsieistung the internal combustion ^¬ machine must be designed for the maximum electrical power consumption of the cooling devices of the container. Therefore, the internal combustion engine usually runs in an ineffi ^¬ cient part-load operation with low efficiency. It was shown that 30 to 50% of the C0 ₂ emission of the Trans ^¬ portes which is required only during a comparatively short period of time of transportation attributable to the generator means.

The invention is therefore based on the object to provide a container and a method for transporting goods, having a more favorable energy balance and thereby a clotting ^¬ Geren C0 ₂ emissions. Furthermore, the object of the invention is to provide a container and a method for

Specify goods transport, which can ensure a better quality of the transported goods at the destination.

The objects of the invention are achieved by a container with side walls, a floor, a ceiling, a front wall and a rear wall. The side walls, the floor, the ceiling, the front wall and the rear wall around ^¬ thereby enclose an interior space such that the indoor climate is controlled and may be different from the air in the outer space of the container. Furthermore, the interior for receiving the goods to be transported or. the charge provided.

To increase energy efficiency, each wall, as well as the floor and ceiling, has an outside and an inside and an insulating layer therebetween. The insulating layer may in some embodiments of the invention contain or consist of mineral wool, glass wool, rigid foam or a vacuum insulation. Walls and floor can be made of a metal or an alloy be, for example, made of steel or a Aluminiumlegie ^¬ tion.

The container further comprises a cooling device, which is adapted to provide a heat transfer medium with predeterminable temperature and / or humidity. The cooling device may be a compression refrigeration machine in some embodiments of the invention. In other exporting ^¬ approximate form of the invention, others can be used in a known cooling machines, for example, an absorption heat pump.

The heat transfer medium may be gaseous in some embodiments of the invention. The heat transfer medium may be ambient air in the simplest case. In some exemplary forms of the invention can be used as heat transfer medium, a protective gas, for example nitrogen, carbon dioxide or argon ^¬. The heat transfer medium can be removed from the interior of the container and returned via the cooling device. In some embodiments of the invention, the cooling device may comprise a mixed air system, with which a part of the extracted heat transfer medium can be released to the environment and replaced by fresh air.

The heat transfer medium is brought to a predeterminable temperature in the cooling device. The temperature may be between about -40 ° C and about +30 ° C in some embodiments of the invention. In other embodiments of the invention, the temperature may be between about -6 ° C and about + 20 ° C. In still other embodiments of the invention, the temperature may be between about 0 ° C and about + 10 ° C. In yet another embodiment of the invention, the temperature may be between about +5 ° C and about +8 ° C. The moisture content of the heat transfer medium can be between about 20% relative humidity and about 90% relative humidity. In some embodiments, the The invention may be the humidity between about 30% and about 60% relative humidity. Temperature and / or humidity can be adapted to the goods to be transported, so that there is an optimal protection of the goods on the transport.

Furthermore, the container has a low-pressure ^{conveying device} which is set up to circulate the heat carrier medium with a first pressure in the interior of the container. The pressure may be between about 1 hPa and about 20 hPa in some embodiments of the invention. In some embodiments of the invention, the pressure may be between about 5 hPa and about 7 hPa. In some embodiments of the invention, the low-pressure conveying device can be an axial fan or a radial fan or a roller fan or contain at least one axial fan or at least one radial fan or at least one whale fan, which feeds the heat carrier medium through

Piping system to the cooling device and from there back into the interior of the container promotes.

In some embodiments of the invention, the cooling device and the low pressure conveyor may be provided with associated electrical drive means. In some embodiments of the invention, the electric drive means may be asynchronous motors, which are supplied with AC voltage from a public power grid or the electrical system of a ship with electrical energy.

The flow of the heat transfer medium can within the

Containers done in a conventional manner through a floor with T-grating, which allows a flow from the floor towards the ceiling of the container. In other exporting ^¬ approximately embodiments of the invention other geometries of the supply and exhaust air channels can be provided to circulate the heat transfer medium inside the container. The invention does not teach the use of a special flow geometry as a solution principle.

According to the invention, the container is additionally provided with a high-pressure conveying device which is set up to circulate the heat transfer medium at a second pressure in the interior of the container, the second pressure being greater than the first pressure. The high-pressure conveyor may also be a radial or axial fan in some embodiments of the invention, which however can provide a higher delivery pressure due to a changed geometry of the blade compared to the low-pressure conveyor. In other embodiments of the invention, the high pressure conveyor may comprise a screw compressor or a piston compressor which compresses the heat transfer medium to a higher pressure.

The circulating with higher pressure heat transfer medium is also able to penetrate into the spaces between individual packages of goods, such as fruit boards made of wood, cardboard or plastic, mesh boxes or similar, gas-permeable packaging containers.

Due to the flow of goods with the heat transfer medium excess heat of the goods can be delivered directly to the heat transfer medium, so that the cooling of centrally arranged goods is not only by heat conduction, but also by convection. As a result, the goods can be cooled uniformly and rapidly, for example, ^¬ to dissipate the registered during opening of the container heat or not pre-cooled goods to cool the target temperature for transport ^¬ .

After reaching the target temperature, the high-pressure conveyor can be switched off. During transport at a constant temperature, the heat transfer medium is then circulated through the low-pressure conveyor. The low Druckfordereinrichtung may have a lower energy consumption than the high pressure conveyor, so that the transport can be done for a long time with low energy consumption for cooling.

The pressure provided by the high pressure conveyor may be between about 300 hPa and about 800 hPa. In some embodiments of the invention, the overpressure of the heat transfer medium provided by the high pressure conveyor may be between about 500 hPa and about 700 hPa. In some embodiments of the invention, that provided by the high pressure conveyor may be

Overpressure of the heat transfer medium between about 60 hPa and about 200 hPa amount. This pressure range ensures that the heat transfer medium can penetrate into the individual packages and heat is efficiently dissipated from the transportie to ^¬ Governing goods.

In some embodiments of the invention, the high pressure conveyor may be separable from the container. Since the high pressure conveyor only at the beginning of the transport process or. is required for a limited period of time following the loading, this can be removably ^{ausgestal ¬} tet, so that weight can be saved on the longer transport path of Contai ^¬ ners. Furthermore, it is avoided ^{¬ to} keep ready an unused and not in operation high-pressure conveyor, if this is removed after switching off the container and attached to another container.

In some embodiments of the invention, the high pressure conveyor may be drivable by an internal combustion engine. At the beginning of the transport process the container is often in remote areas, to which no public power grid is for energy procurement for Availability checked ^¬ supply. In these cases, the high-pressure conveyor can be operated with an associated internal combustion engine can be started immediately after loading with the rapid cooling down of the goods within the container.

In some embodiments of the invention, the high-pressure conveyor can be connected to a

Crankshaft of the internal combustion engine be coupled. On the one hand, such a transmission makes it possible to decouple the high-pressure ^conveying device from the internal combustion engine, if this is not required. Furthermore, the high - pressure ^conveyor device can be operated at different rotational speeds by means of a shiftable transmission in order to adjust the operating state of the high - pressure conveyor device to the required cooling load or. adapt the distribution of the goods present in the container and the resulting dynamic pressure of the heat transfer medium.

In some embodiments of the invention, the container may include at least one electrical generator, wherein the internal combustion engine is configured to at least temporarily drive the electric generator. Such a generator optionally allows the operation of the low-pressure conveyor and the operation of the cooling device with electrical energy. Thus, regardless of the presence of a power grid or. external auxiliary energy provided a heat transfer medium with a predeterminable temperature and distributed by means of a selectable pressure within the container or. be circulated.

In some embodiments of the invention, the high pressure conveyor may be provided with electrical drive means, such as an electric motor. In this case, the high-pressure conveyor electrical energy can be supplied from the generator. Furthermore, the high-pressure conveyor can be switched on and off in a simple manner, so as to adapt the delivery rate and / or the pressure to the requirements. In some embodiments of the invention, the

Container further comprises at least one battery which is chargeable with the electric generator and which is adapted to supply the cooling device and / or the high pressure conveyor and / or the low pressure conveyor with electrical energy. It has been found that the internal combustion engine has a particularly high efficiency at full load, that is, the fuel consumption ^¬ is comparatively low compared to the output power. However, if the cooling device and / or the conveyors need not be operated at full power, the power of the internal combustion engine has to be reduced to adjust the delivery of electrical Leis ^¬ processing by the generator to the energy consumption of the electrical device of the container. Although this the absolute fuel consumption is reduced, since j decreases edoch the efficiency of the internal combustion engine, the rela tive ^¬ fuel consumption increases. According to the invention will now be provided ^¬ propose to operate the engine always with full power and to supply excess mechanical power to the generator and zwischenzuspeiehern as electric energy in a battery. Once the battery is fully charged, the internal combustion engine can be switched off ^¬ the, wherein the electrical devices of the container will be powered by the battery. Just before the battery reaches its final discharge voltage, the engine is restarted to provide power to the container's facilities and recharge the battery. By such a hybrid power supply ensures that the engine always operates in the optima ^¬ len efficiency range regardless of the requested electric power, respectively. The efficiency of the overall system of internal combustion engine, generator and battery is thereby higher than the efficiency of a known

Combination of internal combustion engine and generator without Batte ^¬ ie. Thus, fuel can be saved during operation of the cooling means of the container. In some embodiments of the invention, this relates to a generator device for mounting on a container, comprising an internal combustion engine and an electric generator, wherein the generator device further includes a high-pressure conveyor, which is adapted to circulate a heat transfer medium in the interior of the container.

Such generation means can by the Beiade auditory canal and be attached during the road transport of the container on Contai ^¬ ner to provide the cooling means with electrical energy and provide a high-pressure conveying device for the rapid cooling of the product. Once the container is loaded on a ship, there is the electrical system available to the cooling device and the

Low pressure conveyor of the container to provide electrical energy. The generator device can then be removed to use this on another container.

In some embodiments of the invention, this relates to a generator device, which further contains at least one battery, which is chargeable with the electric generator and which is adapted to supply the high ^¬ pressure conveyor and / or at least one further electrical device of the container with electrical energy. In this way, the efficiency of the generator device can be increased by the internal combustion engine of the generator device always runs with optimum efficiency and at low electrical Energiebe ^¬ the electrical equipment may be supplied with battery power, so that the internal combustion engine to these

Times can be switched off.

In some embodiments of the invention, this relates to a generator device for mounting on a container, containing an internal combustion engine and an electric Generator, wherein the generator device further includes at least one battery which is chargeable with the electric generator and which is adapted to supply at least one electrical energy consumer of the container with electrical energy. If the

Container is loaded only with pre-cooled goods, the cooling device of the container only has to compensate for the heat input through the walls of the container, however, no heat dissipated by the goods dissipate. In this case, in some embodiments of the invention, a high pressure conveyor may be dispensed with. However, when road transport or storage off the public power grid, an electrical power supply of the cooling device and the low-pressure conveyor is required. This can be done according to the invention by a hybrid power supply by means of a generator and a battery, so that the efficiency compared to a pure generator operation increases and the fuel consumption decreases.

In some embodiments of the invention, the container has at its bottom at least one drainage hole through which condensate can drain. At least during the operating time of the high-pressure conveyor can be provided to increase the flow resistance through these drainage holes to verrin ^¬ losses of the heat transfer medium. The increase of the flow resistance can in some embodiments be effected by a perforated plate or a mesh or a metal mesh, which at least partially displaces the cross section of the drainage hole. In some embodiments of the invention, alternatively or additionally, a fleece of metal, an alloy or a plastic may be introduced into the drainage bore. In some embodiments of the invention, the nonwoven may include steel wool, particularly stainless steel. In some embodiments of the invention, alternatively or additionally, a valve may be provided to at least temporarily close the drainage bore. The valve can be provided with compressed air or an electromagnetic actuator, so that the drainage hole can be closed when starting the high pressure conveyor by the control of the cooling device of the container and can be opened again when switching off the high pressure conveyor.

The invention will be explained in more detail with reference to figures without limiting the general inventive concept. It shows

Fig. 1 shows the cross section through a container according to the present invention.

Fig. 2 shows an axonometric representation of the container with generator unit.

Fig. 3 shows a block diagram of a container according to the invention with a generator unit according to a first exporting ^¬ approximately of the invention.

Fig. 4 shows a block diagram of a container according to the invention with a generator unit according to a second exporting ^¬ approximately of the invention.

Fig. 5 shows a generator unit according to a third embodiment of the invention.

Fig. 6 shows a generator unit according to a fourth embodiment of the invention.

Fig. 7 shows a block diagram of a container according to the invention with a generator unit according to a fifth embodiment of the invention.

Fig. 8 shows a flow chart of a method according to the invention for transporting goods. 1 shows a cross section through a container 1. The container 1 comprises a first side wall 110 and a second side wall 120. In addition, the container has a bottom 130 and a ceiling 140. The front wall and the rear wall are in cross-section as shown in FIG. 1 not visible ^¬ bar. Each wall comprises an inside 112, 122, 132 and 142. The insides of the walls define an interior 101 of the container 1.

Furthermore, each wall comprises an outer side III, 121, 131 and 141. At least one insulation layer 170 is arranged between the inner side 112, 122, 132 and 142 and the outer side III, 121, 131 and 141. The insulation layer can be selected from mineral wool and / or hard foam

and / or a vacuum insulation. The container can have a width, a length and a height of a standardized ISO freight container.

Feet 102 may be disposed on the floor 130 so that the container can be easily lifted and transported by a forklift.

The container 1 contains Zuluftkanäle or. Exhaust ducts 103, via which a heat transfer medium to or. can be dissipated. The position of the supply air and exhaust air ducts in the corners between the side walls and the floor or. the ceiling is in Fig. 1 only shown schematically. In other embodiments of the invention, the number of supply and exhaust air ducts may be larger or smaller. Likewise, in different embodiments of the invention, a different geometry or position of the supply and exhaust air ducts can be selected. The invention does not teach the use of the illustrated geometry as a solution principle.

In some embodiments of the invention, channels 105 may be present in the floor and / or on the ceiling, which are cooled by a heat transfer medium. This allows the ceiling and / or the bottom of the container absorb radiant heat emanating from the charge. A similar system may also be provided for the sidewalls in some embodiments of the invention.

Fig. 2 again shows the external view of a container 1. In FIG. 2, the second side wall 120, the ceiling 140 and the front wall 150 can be seen. The rear wall 160 is concealed from the front wall 150. The rear wall can be opened in whole or in part in order to transfer cargo or goods to be transported into the inner space 101 or to remove them from there.

Furthermore, it can be seen how a generator device 200 can be attached to the front wall 150. The generator device 200 can provide electrical energy for supplying the cooling device of the container 1 by means of an internal combustion engine and a generator. In addition, the generator device 200 may include a battery for temporary storage of electrical energy and / or a high pressure conveyor for the heat transfer medium, as will be explained below with reference to block diagrams unterschiedli ^¬ cher embodiments of the generator device 200.

The generator device 200 is located in a separate housing, so that it can be removed when the generator device 200 is not needed, for example, in power supply from a vehicle electrical system of a vehicle or a ship.

Fig. 3 shows a block diagram of a container 1 with an interior 101. The interior 101 is to be cooled to a predeterminable temperature. For this, the air or air present in the interior 101 is removed. a protective gas via a pipe 330 removed by means of a low-pressure conveyor 310. In a first position of the three-way valve 331, the heat transfer medium flows to the second three-way valve 332. From there, the heat transfer fluid enters the cooling device 300, which is adapted to extract heat from the heat transfer medium and / or remove moisture or moisture. Finally, the heat transfer medium is passed via the pipe 330 into the inner space 101. The low-pressure conveyor 310 may be, for example, an axial fan, a radial fan or a roller fan or contain such. The cooling device 300 may be, for example, a compression refrigeration machine. The low ^¬ pressure conveyor 310 is driven by electric drive ^¬ medium 315, for example, an asynchronous motor. Likewise, the cooling device 300 is powered by electrical energy. When transporting the container 101 on a ship or when stored on a depot, the container 101 to an electrical system or. be connected public power grid to provide the cooling device with electrical energy. In remote areas and / or road transport, the generator unit 200 may be connected to the container 1, as shown in FIG. 2 explained. The generator means 200 includes an internal combustion engine ^¬ 210 which provides a mechanical Antriebsieistung to a crankshaft 212th The crankshaft 212 drives an electric generator 230. The generator 230 can supply the cooling device 300 and / or the low-pressure conveyor 310 with electrical energy via electrical lines 245.

Furthermore, the generator device 200 may include an optional battery 240, which is charged by the generator 230 via an electrical line 245. This allows the engine 210 to always operate at optimum efficiency, regardless of which electrical power is actually consumed by the container 1. excess

Energy can be cached in the battery 240. As soon as the battery 240 reaches its end-of-charge voltage has, the internal combustion engine 210 can be switched off. The cooling device 300 and the electric drive means 310 can then be supplied with electrical energy by the battery until it has reached its discharge end voltage. Thereafter, in turn can be generated with the internal combustion ^¬ machine 210 and the generator 230 electrical energy to operate the facilities of the container 1 and to charge the battery 240. The internal combustion engine therefore either always runs at optimum efficiency or is switched off, so that the fuel consumption is reduced.

The generator device 200 according to the first embodiment further includes a high pressure conveyor 320. In the illustrated embodiment, the high pressure conveyor 320 is driven directly by the crankshaft 212 of the engine 210. The high-pressure conveyor may, for example, a radial fan, a

Contain or consist of screw compressor or a reciprocating compressor.

The high-pressure conveyor 320 is supplied with cooling medium via the three-way valve 331 from the low-pressure conveyor 310. The three-way valve 331 is located in a second position. The heat transfer medium is supplied after its compression in the high-pressure conveyor 320 via the second three-way valve 332 of the cooling device 300 in order to dissipate the heat generated during the compression and the heat dissipated from the inner space 101. The heat transfer medium cooled in this way can be supplied to the inner space 101 via the pipeline 330. Due to the higher pressure, the heat transfer medium can penetrate the goods in the interior 101 faster and more thoroughly when they are stored in conventional fruit crates or lattice boxes. This allows the heat of the charge to dissipate more quickly, allowing the charge to cool down quickly to its target temperature. For the mere maintenance of temperature during transport, the low-pressure conveyor 310 in conjunction with the cooling device 300 is sufficient. The high-pressure conveyor 320 can therefore be removed together with the generator device 200 before the container 1 is loaded on a ship. For this purpose, the power lines 245 are provided with connectors. Likewise, the lines of the heat transfer medium between the three-way valves 331 and 331 and the high pressure conveyor 320 can be separated via Sehne11kupplungen.

Fig. 4 shows a block diagram of a container 1 with a generator device 200 in a second embodiment. Identical components of the invention are provided with the same reference characters, so that the following description is limited to the essential differences.

The generator device 200 according to the second embodiment differs from the first embodiment in that the optional battery 240 is not used in the genes ^¬ rato means 200th The generator device 200 can thereby be made lighter, so that it can be transported easier with reduced efficiency.

Further, the high-pressure conveying device 320 is supplied to the heat transfer medium from the interior 101 of the container 1 UNMIT ^¬ telbar without the heat transfer medium from the low pressure conveying device 310 has been pre-compressed. The recycling of the heat transfer medium compressed by the high-pressure conveying device 320 takes place as described above via a second three-way valve 332 and the cooling device 300.

Fig. 5 shows a generator device 200 according to a third embodiment of the invention. In the third embodiment of the invention is located between the high Requirement device 320 and the internal combustion engine 210 an optional gear 220. The gear 220 can be verwen ^¬ det, the high-pressure conveyor 320 of the

Crankshaft 212 of the internal combustion engine 210 to separate.

Characterized the internal combustion engine 210 can be used only for driving the generator 230 when the high ^¬ pressure conveying device 320 is not needed.

Furthermore, by different transmission ratios, the pressure of the heat transfer medium can be increased with reduced flow. Alternatively, the flow rate can be increased and the pressure lowered. As a result, the transmission allows the operation of the high-pressure conveyor 320 in different operating conditions according to the requirements of the cooling or. goods to be transported.

The high-pressure conveyor 320 according to FIG. 5 and FIG. 6 can be used parallel to the low-pressure conveyor, as shown in FIG. 4 explained or in series with the low-pressure conveyor, as with reference to FIG. 3 explained.

Fig. 6 shows a fourth embodiment of the generator device 200. The fourth embodiment differs from the previous embodiments in that the high-pressure conveyor 320 is driven by associated electric drive means 325. The electric drive means 325 are supplied via an electrical line 245 with power. The electrical energy required for this purpose can be generated by the generator 230 via the internal combustion engine 210. In addition, the high pressure conveyor 320 may be powered by the optional battery 240 as described above. In this embodiment of the invention, too, the hybrid drive of the electrical consumers via a generator or a battery serves to increase the efficiency of the overall system, so that the fuel consumption is reduced. Furthermore, the drive of the high-pressure conveyor device via electric drive means 325 has the advantage that the high-pressure conveyor device can be switched on or off independently of the generator 230. The internal combustion engine 210 can thus always be operated in the ideal load range.

Fig. 7 shows a fifth embodiment of a generator device 200. Furthermore, in FIG. 7 shows a container 1 with a low-pressure conveyor 310 and a cooling device 300, as already described with reference to FIG. 3 explained in more detail.

The generator device 200 according to the fifth embodiment has no high-pressure conveyor 320. However, the generator device 200 according to the fifth embodiment includes a battery 240 for hybrid supply of the electrical consumers of the container 1 with battery power or by the generator 230. Hereby, an increase in efficiency of the generator device 200 can be achieved, even if a high-pressure conveyor 320 for

Cooling the goods in the interior 101 of the container 1 is not needed.

Fig. 8 shows a flowchart of the inventively ^¬ chosen method for transportation of goods.

In the first process step 51, the product is introduced into the inner space 101 ^¬ a container. 1 The goods may contain, for example, fruits, vegetables or meat. The goods need not necessarily be pre-cooled, so that a thermal load is created in the interior 101 by loading the container.

In the second method step 52, by means of a genera ^¬ gate device 200, which in addition to an internal combustion engine and a generator, a battery and a high pressure contains demanding device, the cooling device of the container supplied with electrical energy to cool the heat transfer ^¬ medium to a relation to the environment colder temperature. The heat transfer medium is at least circulated through the high-pressure conveyor in the container, so that the introduced product cools down quickly to its target temperature selected for transport.

In the second method step 52, the energy required for this purpose is provided by the generator, which is driven by the internal combustion engine. Not UNMIT ^¬ telbar consumed by the cooling device or high-pressure conveyor is zwischenge energy stores ^¬ in the battery.

In the third step 53, the battery has reached its charging end voltage, so that they can not store additional elec tric ^¬ energy. Therefore, in the third method step, the internal combustion engine can be switched off. The cooling device and the high pressure conveyor is powered by the discharge of the battery with electrical energy.

After reaching the discharge end voltage of the second method step 52 can be performed again by the internal combustion engine is restarted. The method ^¬ steps 52 and 53 can be repeated cyclically until an alternative source of electrical energy is available and / or the goods in the container 1 has reached its target temperature.

In the fourth method step 54, the high-pressure conveyor device can be switched off after reaching the target temperature. For pure temperature maintenance in the interior 101, the circulation of the heat transfer medium through the low ^¬ pressure conveyor, which may have a lower electrical energy consumption is sufficient. Therefore, in the fourth Process step 54, the heat transfer medium circulated via the low-pressure conveyor and cooled by the cooling device of the container, wherein the ^{erforderli ¬} che electrical energy is provided by the generator of the generator device 200.

In the fifth method step 55, the battery in the generator device 200 in turn has reached its discharge end voltage, so that the internal combustion engine can be switched off. The power supply of the low-pressure conveyor and the cooling device can now be taken over by the battery.

After discharging the battery 240, the method document 54 can be carried out again by restarting the internal combustion engine. The method steps 54 and 55 are carried out cyclically until the container 1 has found a connection to an external power source, in ^¬ example, the electrical system of a ship or a public power grid ^¬ .

Then, in step 56, the generator device 200 is dismantled. This is again immediately for the imple ^¬ tion of the second process step 52 on another container available.

Of course, the invention is not limited to the embodiments shown in the figures. The above description is not to be considered as limiting, but as illustrative. Features of different embodiments of the invention described above in detail may be combined to form other embodiments. The following claims are to be understood so that a named feature is present in at least one embodiment of the invention. This does not exclude the presence of further features. If the claims and the above description are "first" and "second" features define, this designation serves the distinction of two similar features without ^{festzule ¬} a ranking.

Claims

claims

A container (1) having side walls (110, 120), a bottom (130), a ceiling (140), a front wall (150) and a rear wall (160), each wall having an inner side (112, 122, 132, 142) and an outer side (III, 121, 131, 141) and an insulating layer (170) therebetween, wherein

the container (1) further comprises a cooling device (300) which is adapted to provide a heat transfer medium ^¬ a predeterminable temperature and / or humidity,

and the container comprising a low pressure conveying device (310) which is adapted to circulate the heat carrier ^¬ medium at a first pressure in the interior (101) of the container (1),

characterized in that

the container (1) furthermore has a high-pressure conveying device (320) which is set up to circulate the heat-transfer medium at a second pressure in the interior (101) of the container (1),

wherein the second pressure is greater than the first pressure.

2. Container according to claim 1, characterized in that the high-pressure conveyor (320) is adapted to provide a pressure of about 300 hPa to about 800 hPa or

that the high-pressure conveyor (320) to

is arranged to provide a pressure of about 500 hPa to about 700 hPa.

3. Container according to one of claims 1 or 2, characterized in that the low-pressure conveyor (310) is adapted to provide a pressure of about 1 hPa to about 20 hPa ready.

4. Container according to one of claims 1 to 3, characterized in that the high-pressure conveyor (320) from the container (1) is separable.

5. Container according to claim 1 to 4, characterized in that the high-pressure conveyor (320) by an internal combustion engine (210) is driven and / or

that the high-pressure conveying device (320) by means of a transmission (220) to a crankshaft (212) of the internal combustion engine ^¬ (210) can be coupled and / or

that the high-pressure conveyor (320) by means of

electric drive means is driven.

6. Container according to claim 5, further comprising at least one electric generator (230), wherein the internal combustion engine (210) is adapted to at least temporarily to drive the electric generator (230).

7. Container according to claim 6, further comprising at least one battery (240), which with the electrical

Generator (230) is chargeable and which to do so

is set up to supply the cooling device (300) and / or the high pressure conveyor (320) and / or the low pressure conveyor (310) with electrical energy.

8. Generator device (200) for mounting on a

Container comprising an internal combustion engine (210) and an electric generator (230),

characterized in that

the generator device (200) furthermore contains a high-pressure conveying device (320) which is set up to produce a heat transfer medium in the interior (101) of the

Containers (1) to circulate, wherein the high-pressure conveyor (320) is adapted to provide a pressure of about 300 hPa to about 800 hPa.

9. Generator device according to claim 8, characterized

characterized in that the high pressure conveyor (320) is configured to provide a pressure of about 500 hPa to about 700 hPa.

10. Generator device according to claim 8 or 9, further comprising at least one battery (240) which is chargeable with the electric generator (230) and which is adapted to the high-pressure conveyor (320) and / or at least one device (300, 310) of the container (1) to provide electrical energy.

11. Generator device according to claim 8 or 10, characterized

in that the high-pressure conveying device (320) can be driven by the internal combustion engine (210)

and or

that the high-pressure conveying device (320) by means of a transmission (220) to a crankshaft (212) of the internal combustion engine ^¬ (210) can be coupled.

12. Generator device (200) for mounting on a

characterized in that

the generator device (200) further comprises at least one battery (240) connected to the electrical

Generator (230) is chargeable and which to do so

is set up, at least one electric

Energy consumers (300, 310) of the container (1) to provide electrical energy.

13. Method for transporting goods, in which the goods are in

a container (1) having side walls (110, 120), a bottom (130), a ceiling (140), a front wall and a rear wall is introduced, wherein each wall has an inner side (112, 122, 132, 142) and an outer side (III, 121, 131, 141) and an intermediate one

Isolation layer (170), and wherein

the container (1) further comprises a cooling device (300), with which a heat transfer medium with

predetermined temperature and / or humidity provided is, which is circulated during a first period of time with a low-pressure conveyor (310) having a first pressure in the interior (101) of the container (1), characterized in that

the heat transfer medium is circulated during a second period of time with a high-pressure conveyor (320) having a second pressure in the interior (101) of the container (1),

wherein the second pressure is greater than the first pressure

14. The method according to claim 13, characterized in that the second period connects to a loading of the container (1) with goods and the first period begins after reaching a target temperature.

15. The method according to claim 13 or 14, characterized in that the high-pressure conveyor (320) with an internal combustion engine (210) is driven.

16. The method according to any one of claims 13 to 15, characterized in that the cooling device (300) and / or the low-pressure conveyor (310) with electrical

Power to be operated, which either a battery (240) removed or by a by the internal combustion engine (210) driven generator (230) ^{bereitge ¬} provides.