When a pressure accumulator tank A3a is used as a low-pressure bank, a controller sends an open control signal to an electromagnetic open/close valve A10a to open the electromagnetic open/close valve A10a so that hydrogen in the pressure accumulator tank A3a can be supplied to a tank to be filled (not shown) of an FCV. In parallel with this, the controller sends an open control signal to a first electromagnetic open/close valve 6a and a second electromagnetic open/close valve 6b to open the first and second electromagnetic open/close valves 6a and 6b so that hydrogen can be supplied also from a compressor 2 to the tank to be filled of the FCV.

A system comprising an ammonia cracking unit in which ammonia is split into hydrogen and nitrogen and a hydrogen fueling station for fueling of vehicle tanks with hydrogen from the ammonia cracking unit which comprises gas operated valves (GOVs), one or more hydrogen compressing units wherein the hydrogen from the ammonia cracking unit is compressed, and one or more dispensing units for dispensing the compressed hydrogen to vehicle tanks which each comprise a nozzle through which the hydrogen is passed to the vehicle tank, wherein nitrogen from the ammonia cracking unit is used in e.g.: the operation of one or more of the GOVs; for blanketing one or more of said hydrogen compressing units; for blanketing and/or purging one or more of the dispensing units; for drying one or more of the nozzles between uses to prevent nozzle freeze on.

A system for compressing hydrogen gas may include a compression stage with a water lubricated and sealed compressor, a gas-liquid separation stage, and a drying stage with an adsorption-type gas dryer. The system receives hydrogen gas via an inlet and discharges dry compressed hydrogen gas via an outlet. The system has an encapsulating vessel defining a cavity within which the separation stage and drying stage are located.

A control device of a gas charging device controls opening/closing of a control valve so that pressure increase rate of gas pressure in a tank when gas charging to the tank increases at a reference increase rate determined in advance. The control device, when gas charge to the tank begins, controls pressure increase rate at a high increase rate higher than the reference increase rate. After the difference between gas pressure in the tank when gas charging is performed at the high increase rate and gas pressure in the tank when the charging is performed at the reference increase rate has reached a predetermined pressure difference, the control device controls the opening/closing of the control valve so that gas charge to the tank is performed at the reference increase rate.

A screw compressor includes a hollow casing inside which a reservoir for air and oil is realized and on which, in an upper position, a suction group for air from outside the reservoir having at least an air intake valve and at least an air filter; on one lateral end a flow block provided with an oil/air separation device and an oil filter and at least a valve for extracting compressed air are disposed. The casing is provided with an opening on the opposite side with respect to that on which the flow block is provided. The compressor includes a casing closure flange to which a screw compression unit is fixed that when the flange is placed to close the opening causes the insertion into the reservoir of the unit.

A method and apparatus for compressing gases and supplying fuel to a gaseous fuel consuming device, such as a gaseous fueled vehicle or the like. One embodiment includes a gas compressor for compressing the gaseous fuel to an array of tanks having predetermined initial set points which are increasing for tanks in the array. One embodiment provides a selecting valve having first and second families of ports wherein the valve can be operated to select a plurality of ports from the first family to be fluidly connected with a plurality of ports with the second family, and such fluid connections can be changed by operation of the valve.

According to at least one aspect, a hydrogen gas dispensing system is provided. The hydrogen gas dispensing system includes a source configured to provide a hydrogen gas, a storage device configured to store the hydrogen gas up to a first pressure level, a dispenser configured to dispense the hydrogen gas up to a second pressure level that is higher than the first pressure level, and a compressor configured to compress the hydrogen gas from the source up to the first pressure level for storage in the storage device and configured to compress the hydrogen gas from the storage device up to the second pressure level for dispensing via the dispenser. According to at least one aspect, the dispensing system comprises an input power port configured to receive input power and an output power port configured to deliver output power derived from the input power to charge an electric vehicle.

Disclosed herein are a method for diagnosing a disease of a body tissue by using LIBS (Laser-Induced Breakdown Spectroscopy) comprising: preparing a laser device including: a laser projection module, outputting the laser to a suspicious region of the body tissue, a light receiving module, receiving a plurality of light, a spectrum measurement module, and a guide unit; and projecting the laser to generate plasma by inducing tissue ablation in the suspicious region; wherein the laser projected to the suspicious region has a target area, and wherein the target area has smaller size than the suspicious region such that the target area is located inside the suspicious region.

A liquefied gas unloading and deep evacuation system may more quickly, more efficiently and more completely unload liquefied gases from transport tanks, such as rail cars, into stationary storage tanks or into truck tanks. The system may utilize a two stage compressor, an electric motor, a variable frequency drive, a four way valve, a three way valve, a two way valve, a programmable logic controller based control system and pressure and temperature transmitters. The valving enables deep evacuation of the transport or supply tank to more completely empty the transport tank. The programmable logic controller and variable speed drive may be used to variably control the speed of the two stage compressor so that the system may be running as fast as possible during changes in ambient temperature and/or different stages of offloading the liquefied gases without exceeding the compressor's horsepower limit.

A compressor unit includes: a reciprocating compressor main body having a drive portion and a compression portion driven by the drive portion to compress a hydrogen gas; an electric motor that is a power source of the drive portion; a hydrogen supply flow path which is connected to a suction side flow path and to the compressor main body and through which a hydrogen gas flows; a fuel cell module that is disposed in the hydrogen station, generates electric power using a hydrogen gas guided through the hydrogen supply flow path, and supplies the generated electric power to the electric motor; and an inverter that adjusts a rotation speed of the electric motor.