Abstract: A supply device and a method for building and operating a supply device of a filling station for liquid hydrogen are disclosed. The supply device has at least one storage tank for liquid hydrogen, and at least one pump for liquid hydrogen, the storage tank and pump being directly interconnected.

Abstract: The invention relates to a method for adjusting a hydrogen outlet temperature at a filling station, comprising inter alia a liquid reservoir (1), a cryopump (2), a heat exchanger (6), a gas reservoir (11) and a mixing point (7), wherein a cold hydrogen stream and a warm hydrogen stream are intermixed such that the temperature at the mixing point (7) lies between ?30 and ?45° C.

Abstract: A fluid energy machine, comprising a crank drive (A) and a drive device which is mechanically connected to the crank drive, wherein the drive device has two electric motors, the respective output members of which are mechanically connected to the crank drive is disclosed. The fluid energy machine is arranged within a housing which seals the fluid energy machine with respect to the surroundings and which is connected to a pressure-holding system. A method for operating a fluid energy machine of this type is further disclosed.

Abstract: The invention relates to a fluid energy machine and a method for generating a fluid-volume flow and for compressing a fluid by means of the fluid energy machine according to the invention. The invention also relates to a method for refuelling a vehicle with a fluid using the method according to the invention for generating a fluid-volume flow and for compressing a fluid, and to the use of a fluid energy machine according to the invention for refuelling a motor vehicle. The fluid energy machine comprises a crank drive (20) and a drive device (10) that is mechanically connected to the crank drive (20), by means of which drive device a torque can be introduced into the crank drive (20), as well as a piston-cylinder unit (30), the piston (32) of which is mechanically connected to the crank drive (20). The drive device (10) comprises two electric motors (50, 60), the respective output members (51, 61) of which are mechanically connected to the crank drive (20).

Abstract: A method for operating a hydrogen fueling station is described, wherein the latter exhibits at least at least one storage tank, which is used to store liquefied hydrogen, and in which boil-off gas at least occasionally accumulates, at least one cryogenic pump, which is used to compress the hydrogen to the desired dispensing pressure, at least one dispenser, through which the compressed hydrogen is dispensed, and lines that connect the aforementioned components. According to the invention, the boil-off gas that accumulates is at least partially used for cooling at least one component and/or line of the hydrogen fueling station and/or is at least partially catalytically combusted.

Abstract: A method for determining a tank pressure in a tank before the tank is filled with pressurised, gaseous hydrogen, according to which method an accumulator, in which the hydrogen to be used to fill the tank is stored as liquid hydrogen, is connected to the tank by means of a filling line and a subsequent check valve of the tank wherein hydrogen is pumped from the accumulator into the filling line by means of a pump and the filling-line pressure arising in the filling line during the pumping is measured, wherein the check valve is opened if the filling-line pressure exceeds the tank pressure, and wherein the tank pressure is determined as the filling-line pressure that exists when the check valve is opened.

Abstract: Described as a filler-tank coupling, exhibiting a) a coupling plug (S), b) in which is arranged an axially movable conduit (R), c) a coupling socket (D) corresponding to the coupling plug (S), d) wherein the conduit (R) extends beyond the parting plane (T) into the coupling socket (D) in the coupled state, so that a media opening (9) provided in the front area of the conduit (R) becomes aligned with the inlet opening of a media line (L) arranged in the coupling socket (D), and e) means for joining the coupling plug (S) and coupling socket (D). According to the invention f) the conduit (R) has an insulated design (1), g) a first insulating body (2) is arranged at the front end of the conduit (R), h) the coupling socket (D) exhibits a second insulating body (6) that can move in an axial direction and corresponds to the first insulating body (2), and i) the conduit (R), first insulating body (2) and second insulating body (6) are sealed gastight (3, 4, 7).

Abstract: A method for compressing a cryogenic medium, in particular hydrogen, oxygen, nitrogen or argon is described. The cryogenic medium is compressed in two compressor stages from an initial pressure to a final pressure by way of an intermediate pressure, such that the first compressor stage is designed as a cryogenic compressor stage. The cryogenic medium is advantageously compressed to a pressure between 30 and 70 bar in the first compressor stage and in the second compressor stage is compressed to the desired final pressure by means of a hot gas compression.

Abstract: The invention relates to a system for heating and/or cooling a medium, comprising an ambient air heat exchanger via which the medium can be heated and/or cooled relative to the ambient air in one or more heat exchanger tubes. The ambient air heat exchanger comprises means for the controlled guidance and/or flow-control of the ambient air along the one or at least one heat exchanger tube, the means for the controlled guidance and/or flow-control of the ambient air being designed to allow a variable or controlled manipulation of the flow speed, flow direction and/or flow intensity of the ambient air.

Abstract: A method and an arrangement for filling a storage container, in particular a storage tank of a vehicle, having a compressed medium, in particular compressed hydrogen, wherein the medium is temporarily stored in at least one high pressure storage container and immediately before being delivered to the storage container to be filled has a temperature that is within a predetermined temperature interval. The high-pressure storage containers, in which the medium is temporarily stored, are cooled and/or heated. Thus, the medium temporarily stored in the high-pressure storage container is temporarily stored substantially at the temperature at which it is delivered to the storage container to be filled.

Abstract: A method for filling a storage tank with gaseous, pressurized hydrogen where a) liquid hydrogen, which is extracted from a storage tank, is compressed to an average pressure and is stored intermediately in a buffer tank; b) the boil-off gas accumulating in the storage tank is compressed and is stored intermediately in the buffer tank; c) a pressure compensation between the storage tank, which is to be filled, and the buffer tank is carried out initially for filling the storage tank and d) hydrogen from the buffer tank is compressed subsequently to the desired storage pressure and is supplied to the storage tank wherein this compression of the hydrogen and the compression of the boil-off gas are realized by means of one compressor or by means of two compressors.

Abstract: A storage tank, specifically a storage tank for low-temperature fluids, preferably for liquid hydrogen, having an outer tank, at least one inner tank, insulation having at least one metal layer located between the outer tank and the inner tank or tanks, and two or more process lines, is disclosed. The, or at least two of the process lines have means to vent evaporated, low-temperature fluid from the inner tank or tanks. The means to vent evaporated, low-temperature fluid are configured such that they enable the quantity of gas to be vented to be controlled.

Abstract: A coupling for vacuum-insulated pipe or hose lines provided for conducting one or more cryogenic media, in which a single- or multi-core coupler plug and corresponding coupler socket each have a ball valve provided with a through hole and a locking sleeve coupled to rotate its respective ball valve when the sleeve is axially displaced. When the coupler plug and coupler socket are brought together, the locking sleeves engage and are displaced axially, such that the ball valves are moved into open positions in which a conduit of the coupler plug may be extended through the coupler plug ball valve into the coupler socket. Such a coupler allows a docking procedure to be reliably performed in all radial angular positions between the plug side and socket side, without need for skilled operators, position sensor technology or a precision refueling robot.

Abstract: A storage container (1) for cryogenic media (2), especially for liquid hydrogen, having an outside container (3), an inside container (4) and at least one extraction and fill line (6, 6?) is described. According to the invention in the storage container (1), there is at least one additional storage space (5, 5?) for a medium and at least the extraction line (6, 6?) is dynamically connected to the additional storage space (5, 5?). A shield (12) that preferably at least partially surrounds the inside container (4) can be assigned to the additional storage space (5, 5?) and can be in thermal contact with it. The additional storage space (5) can also be made in the form of a hollow chamber section and can at least partially surround the inside container (4). The invention makes it possible to greatly reduce the evaporation rate in storage containers (1) that are used to store cryogenic media (2).

Abstract: A storage tank for liquid hydrogen has an outer tank, at least one inner tank, an insulation arranged between the outer tank and the inner tank or tanks and has at least one metallic layer, and at least one filling and/or removing line. The at least one filling and/or removing line are/is in a direct and/or indirect thermal contact with the metal layers or at least one of the metal layers of the insulation.

Abstract: A coupling for handling fluid media, preferably for cryogenic media or liquefied natural gas. The coupling has a single core or multicore coupling connector plug and a coupling socket, with associated ball valves. Rotating rings associated with the coupling connector plug and the coupling socket allow for opening and closing of the ball valves to permit transfer of fluids via a conduit that can extend into the coupling socket past the plane of separation.

Abstract: The invention relates to a vacuum-insulated filling line, especially for cryogenic media, preferably for liquefied and/or gaseous, highly-pressurized hydrogen. The invention also relates to a filling station for cryogenic media, having said vacuum-insulated filling line. According to the invention, the vacuum-insulated filling line has a pipe fracture safety. Said pipe fracture safety can be embodied in the shape of a guide pipe (5) arranged on the outer wall (1) of the filling line, a bellows (6) arranged in the guide pipe (5) and firmly connected to the outer wall (1) of the filling line, a (contact) plate (7) closing the bellows (6) and a device assigned to the (contact) plate (7), which is configured to detect movement of the (contact) plate (7) and/or the bellows (6).

Abstract: A storage container (1) for cryogenic media (2), especially for liquid hydrogen, having an outside container (3), an inside container (4) and at least one extraction and fill line (6, 6′) is described. According to the invention in the storage container (1), there is at least one additional storage space (5, 5′) for a medium and at least the extraction line (6, 6′) is dynamically connected to the additional storage space (5, 5′). A shield (12) that preferably at least partially surrounds the inside container (4) can be assigned to the additional storage space (5, 5′) and can be in thermal contact with it. The additional storage space (5) can also be made in the form of a hollow chamber section and can at least partially surround the inside container (4). The invention makes it possible to greatly reduce the evaporation rate in storage containers (1) that are used to store cryogenic media (2).

Abstract: A storage tank, especially for liquefied gases, is separated into cells by numerous partitions of a material having low heat conductivity. The maximum diameter of the cells in a plane that is perpendicular to the partitions is less than 50 mm.

Abstract: A process for withdrawing a gaseous and liquid cryogenic medium from a storage container is described, whereby the withdrawing from the gas phase or the liquid phase is carried out via at least one withdrawal line in each case, and these withdrawal lines are joined to at least one line that leads to the consumer of the cryogenic medium and can be switched using a valve between the two withdrawal lines. Further described is a storage container for a cryogenic medium with at least one withdrawal line, via which gaseous, cryogenic medium can be removed, and with at least one withdrawal line, via which liquid cryogenic medium can be removed, with a line, to which the withdrawal lines are joined and with at least one valve, which makes it possible to switch between the two withdrawal lines. According to the invention, valve (9) is moved using at least one electrochemical actuator (10), and the valve (9) and/or electrochemical actuator (10) can be arranged inside storage container (1).