A high altitude atmospheric energy storing apparatus having a new structure, which is conceived to store the energy of low-temperature air located at high altitude in the sky and utilize it as needed, is provided. The high altitude atmospheric energy storing apparatus includes an air tank adapted to store air, an air supply pipe provided such that it extends in a vertical direction and its lower end is connected to the air tank, and a compression device provided in the sky, connected to the upper end of the air supply pipe, and configured to compress air using the wind and supply the compressed air to the air tank through the air supply pipe, thereby enabling air to be compressed by the wind blowing at high altitude and to be then stored in the air tank.

A cryogenic fluid delivery manifold system includes a plurality of cryogenic supply tanks. A liquid flow manifold permits flow of liquid a use device. A vapor pressure manifold is coupled to the supply tanks and to a pusher tank for regulating and/or balancing pressure across the plurality of supply tanks.

A system and a method for dispensing a liquefied fuel (e.g., hydrogen) are provided. The system includes a cryotank for storing a liquefied fuel, a pump insertable into the cryotank, and a switching valve. The pump has a piston, an intake port, and an isolation valve configured to supply the liquefied fuel to the intake port. The switching valve is controlled to flow the vapor from the pump and the liquefied fuel contacting a backside of the piston to the intake port of the pump. At least one block valve is also connected with the cryotank and the pump. At least one of the switching valve, the at least one block valve, and the isolation valve can be controlled to operate the system in one of three working modes including a pressure increase mode, a pressure maintaining mode, and a pressure decrease mode.

A filling station for pressurized fluids has a storage container and a dispenser supplied thereby, comprising a high-pressure path and a low-pressure path. The storage container is partitioned into separate sections, which are each connected to the input of a high-pressure pump via a first switching valve and to the output of said high-pressure pump via a second switching valve. The first or second switching valves are connected on their pump sides to the low-pressure path of the dispenser via a third switching valve. The output of the high-pressure pump supplies a high-pressure reservoir via a fourth switching valve, which high-pressure reservoir is connected to the high-pressure path of the dispenser via a fifth switching valve.

An apparatus for storing large quantities of compressed gas at high pressure underground.

Improvements in machining systems that utilize machining fluids comprising a supercritical fluid are described. Some systems may provide centralized distribution of a supercritical machining fluid and/or a lubricant to a plurality of machining tools in a machining facility. Other systems may allow for selective delivery of multiple machining fluids to a machine tool. For example, a supercritical machining fluid and a non-supercritical machining fluid may be selectively delivered to a machining tool as desired for a particular machining process.

The invention relates to a tank (71) for storing a liquefied gas, wherein the tank (71) includes peripheral walls (1), the peripheral walls (1) including a sealing membrane and at least one thermal insulation barrier,

wherein the sealing membrane includes corrugated metal plates comprising a first series of parallel corrugations, extending along a direction x and a second series of parallel corrugations extending along a direction y, the direction x being a direction of greater slope, wherein the peripheral walls (1) comprise filling elements with pressure loss, which are disposed in the corrugations of the first series of corrugations so as to form a belt (16) of filling elements extending all round the tank (71), the belt being formed of at least one obstruction part (17) and of at least one discontinuation part (18), the belt including at most one discontinuation part (18) per peripheral wall (1).

A tank for storing liquefied gas, having a shell delimiting a storage volume extending in a main direction which is horizontal in the use configuration of the tank, the tank comprising multiple deflecting walls in the storage volume which extend in an offset manner in the main direction configured to force the fluid to perform at least one back-and-forth movement in the main direction as the fluid passes between the lower end and the upper end of the storage volume, wherein a plurality of these deflecting walls are located in the lower half of the storage volume.

A system and method for the transfer of cryogenic fluid fuel includes a nozzle positionable with respect to fuel tank inlet, e.g., of an unmanned aerial vehicle (UAV), a seal to seal the area where the nozzle and inlet are connected, a collapsible and expandable bellows providing an isolation volume where the fluid is transferred from the nozzle into the inlet; a vacuum is provided in the volume to avoid accumulation of fuel or other species in the volume.

A pressure regulating device includes an on-board storage tank, a mixing chamber, first and second lines, a recirculation line, a pressure sensor and a controller. The storage tank stores and supplies cryogenic fuel to a combustion chamber and includes a booster pump. The first line supplies cryogenic fuel in the liquid state and includes a pressurizing pump and a first regulation valve. The second line supplies cryogenic fuel in the gaseous state and includes a compressor and a first control valve. The recirculation line includes a second regulation valve and with a first heat exchanger. The pressure sensor detects the pressure inside the storage tank. The controller receives the pressure and controls the first and second regulation valves, the first control valve, the pressurizing pump, the booster pump and the compressor, as a function of a value of a setpoint pressure inside the storage tank.