Abstract: Device for pumping liquid hydrogen including, arranged in series between an inlet for fluid to be compressed and an outlet for compressed fluid, a first compression member with a piston forming a first compression stage and a second compression member with a piston forming a second compression stage. The first compression member compresses the liquid hydrogen to a supercritical state. The second compression member compresses the supercritical hydrogen from the first compression member to an increased pressure, in particular, between 200 and 1000 bar.

Abstract: The invention relates to a vegetable Cream Cheese, that is to say a product formulated with vegetable raw materials that reproduces the features of a dairy Cream Cheese in terms of texture and organoleptic profile.

Abstract: The present invention relates to a food product composed of vegetable ingredients having visual, textural and flavour properties of a soft fermented cheese.

Abstract: The present invention relates to the field of the food industry; it is aimed more particularly at the preparation of food products, sliceable solids, composed of vegetable ingredients and having organoleptic properties close to those of dairy products.

Abstract: The present invention relates to the field of the food industry; it is aimed more particularly at the preparation of food products, namely a range of cream analogues, composed of vegetable ingredients and having functional and organoleptic properties close to those of dairy products.

Abstract: Cryogenic refrigeration device comprising a working circuit intended to cool a working fluid circulating in the said circuit, the working circuit comprising, arranged in series in a loop: a compression portion, a cooling portion, a portion with valve(s), an expansion portion and a reheating portion, in order to subject the working fluid to a recuperative working cycle comprising compression, then cooling, then expansion and then reheating to prepare for a new cycle, wherein the compression portion comprises at least one compressor having a linear piston driven by a linear motor, the expansion proportion comprises at least one expander with a linear piston, the portion with valve(s) comprises at least one regulating valve linearly actuated by a linear motor and controlled in order to supply or extract the working fluid from the at least one expansion piston.

Abstract: A method for storing and distributing liquefied hydrogen using an installation having a storage facility for liquid hydrogen, a source of gaseous hydrogen, a liquefier having an inlet connected to the source and an outlet connected to the liquid hydrogen storage facility, the storage facility having a liquid withdrawal pipe having an end connected to the liquid hydrogen storage facility and an end configured to be connected to at least one mobile tank, the method having a stage of liquefying gaseous hydrogen and a stage of transferring the liquefied hydrogen to the storage facility, wherein the liquefied hydrogen has a temperature below the bubble point of hydrogen at the storage pressure and further having a stage of transfer of liquid hydrogen directly to the tank at a temperature between the saturation temperature at the pressure of the liquid and a temperature above the solidification temperature of the hydrogen.

Abstract: Refrigeration device intended to extract heat from at least one member by heat exchange with a working fluid circulating in the working circuit comprising in series: a fluid compression mechanism a fluid cooling mechanism, preferably isobaric or substantially isobaric, a fluid expansion mechanism, and a fluid heating mechanism, in which device the compression mechanism is of the centrifugal compression type and consists of two compression stages arranged in series in the circuit, the device comprising two respective electric drive motors driving the two compression stages, the expansion mechanism consisting of a turbine coupled to the motor of one of the compression stages, the turbine of the expansion mechanism being coupled to the drive motor of the first compression stage.

Abstract: The invention relates to an electrical machine comprising a stator and a rotor that are disposed in a casing comprising a first face provided with ribs and intended to be in contact with a cooling fluid, the machine being provided with a closing structure which is fastened in a leaktight manner to the first face of the casing so as to delimit with the first face of the casing a space forming a circuit for the cooling fluid of the motor, the closing structure being fastened to the first face of the casing by welding and/or brazing and/or crimping and comprising at least one cover, characterized in that the closing structure is fastened to the casing by welding and/or brazing and/or crimping only at said ribs.

Abstract: Device and method for purifying a gas mixture to produce a concentrated gas, notably neon, starting from a mixture comprising neon, said device including, in a cold box housing a cryogenic purification circuit comprising, in series, at least one unit for purifying the mixture by cryogenic adsorption at a temperature between 65K and 100K and notably 65K, then a unit for cooling the mixture to a temperature between 25 and 65 K and then a unit for cryogenic distillation of the mixture to produce the concentrated liquid at the outlet of the cryogenic distillation unit, characterized in that the unit for cooling the mixture to a temperature between 25 and 65 K comprises at least one cryocooler that extracts thermal power from the mixture via a heat exchanger.

Abstract: Device and method for centrifugal compression of a working gas comprising a plurality of centrifugal compressors forming a plurality of compression stages and plurality of drive motors for driving the compressors, the device comprising a gas circuit comprising a first, inlet, pipe for the gas to be compressed, connected to an inlet of a first compressor, the circuit comprising a second pipe connected to an outlet of said first compressor, the second pipe being connected to an inlet of a second compressor, the circuit comprising at least one third, cooling, pipe having one end connected to the outlet of at least one of the compressors and at least one second end connected to an inlet of at least one motor for cooling thereof, the third, cooling, pipe comprising a first member for cooling the gas and two parallel branches respectively supplying two distinct motors of the device for their respective cooling.

Abstract: A device for centrifugal compression of a working gas comprising a plurality of centrifugal compressors forming a plurality of compression stages and a plurality of drive motors for driving the compressors, the device comprising a gas circuit comprising a first pipe for supplying gas to be compressed into the first compressor, the gas circuit comprising a second pipe for discharging the gas compressed therein, the second pipe being connected to an inlet of a second compressor in order to carry out a second compression, the gas circuit comprising a third, cooling, pipe for transferring a fraction of the gas compressed in said compressor into said at least one first motor in order to limit heating thereof, the gas circuit comprising a fourth pipe for recovering the gas that has circulated in the first motor and a downstream end connected to an inlet of a second motor for transferring the gas into same in order to limit the heating of second motor.

Abstract: The invention relates to a method for low-temperature cooling/liquefaction of a working fluid, in particular a working fluid including helium or consisting of pure helium by means of a refrigerator/liquefier that includes a working circuit provided with a compressor station and a cold box. The refrigerator/liquefier subjects the working gas within the working circuit to a cycle that includes, in series: compressing the working fluid within the compressor station, cooling and decompressing the working fluid in the cold box, and heating the working fluid with a view to the return thereof to the compressor station. The compressor station includes one or more compression levels, each one using one or more compressors mounted on landings.

Abstract: A method for conditioning the air of the passenger compartment of an electric vehicle, which includes: a preliminary step conditioning the air in at least one portion of the passenger compartment by an air-conditioning device supplied with power by a power source external to the vehicle, when the vehicle is linked to the external power source; and a main step conditioning the air in the at least one portion of the passenger compartment, by an air-conditioning device supplied with power by a vehicle fossil power source during use of the vehicle; the preliminary step conditioning the air giving priority to the conditioning of the air, in a driver area of the vehicle. A system implementing such a method and an electric vehicle, in particular, an electric bus, implementing such a method or system is also provided.

Abstract: A method for heating the passenger compartment of an electric vehicle, including the following steps: pre-heating at least one part of the passenger compartment by at least one electric heater when the vehicle is connected to an external energy source, and heating the at least one part of the passenger compartment by a combustion heater when the vehicle is in use. Also provided is a system implementing such a method and an electric vehicle, in particular of the electric bus type, utilizing such a method or such a system.

Abstract: A device for refrigerating and/or liquefying a working gas comprising helium, the device comprising a looped working circuit for the working gas includes, in series, a compression station, a cold box, a heat exchange system exchanging heat between the cooled working gas and a user, the device further comprising an additional pre-cooling system comprising at least one tank of auxiliary cryogenic fluid, such as liquid nitrogen, the cold box comprising a first cooling stage of the working gas comprising a first exchanger disposed at the output of the compression station as well as a second heat exchanger and a third heat exchanger, the first heat exchanger being of the aluminum plate-fin type, the second heat exchanger being of the tube or welded plate type, characterized in that the second and third heat exchangers are connected both serially and in parallel on the working circuit downstream of the first heat exchanger.

Abstract: Refrigeration device comprising a working circuit in a loop for the working gas and comprising, in series: a compression station, a cold box, a system for the exchange of heat between the cooled working gas and a point of use, a system for the additional pre-cooling of the working gas leaving the compression station comprising an auxiliary cryogenic fluid volume, the cold box comprising a first cooling stage for the working gas comprising a first and a second heat exchanger, these being connected both in series and in parallel to the working circuit at the outlet of the compression station, the first cooling stage also comprising a third heat exchanger selectively exchanging heat with the auxiliary fluid, characterized in that the third heat exchanger is connected both in series and in parallel to the first and to the second heat exchangers, the working circuit comprising a recuperation pipe fitted with at least one valve and which connects the outlet of the third heat exchanger to the second heat exchanger.

Abstract: A device for refrigerating and/or liquefying a working gas comprising helium, the device comprising a looped working circuit for the working gas includes, in series, a compression station, a cold box, a heat exchange system exchanging heat between the cooled working gas and a user, the device further comprising an additional pre-cooling system comprising at least one tank of auxiliary cryogenic fluid, such as liquid nitrogen, the cold box comprising a first cooling stage of the working gas comprising a first exchanger disposed at the output of the compression station as well as a second heat exchanger and a third heat exchanger, the first heat exchanger being of the aluminum plate-fin type, the second heat exchanger being of the tube or welded plate type, characterized in that the second and third heat exchangers are connected both serially and in parallel on the working circuit downstream of the first heat exchanger.

Abstract: The invention relates to a device for cooling and/or liquefying, at a low-temperature, a working fluid containing helium or consisting of pure helium. The device includes a working circuit provided with a compressor station and a cold box. The compressor station includes one or more compression stages, each using one or more compressors that include a compressor wheel rigidly connected to an axle that is rotatably mounted on bearings. The axle of each compressor is rotated by an output shaft of a motor via a gear mechanism placed in a mechanical housing including lubricating oil. Said device is characterized in that the inner space of the mechanical housing contains a gaseous atmosphere consisting of a gaseous mixture having a mean molar mass that smaller than the molar mass of the air.

Abstract: The invention primarily concerns a facility for storing and cooling a liquefied gas, for example a liquefied natural gas, the facility comprising at least one tank configured to contain the liquefied gas, a closed cooling circuit configured to be supplied with liquefied gas in the liquid state coming from the tank, at least one injection member configured for reinjecting cooled liquefied gas into the tank, the facility being characterized in that it comprises at least one connection line configured to recover a cooled gas from at least one remote container that is separate and independent from the facility.