Abstract: System comprising: a pressurized casing delimiting an enclosure for at least one machine; a cooling device including: a cooling jacket located inside the pressurized casing; at least one removable sealing element between the cooling jacket and one of a cooling medium inlet or outlet pipe located outside the pressurized casing, wherein the removable sealing element comprises inner and outer cylindrical pieces extending coaxially through the casing and a flange attached to the casing for maintaining the cylindrical pieces, the inner cylindrical piece allowing the cooling medium circulation between the cooling jacket and one of the cooling medium inlet or outlet pipe, the removable sealing element comprising a cooling medium sealing barrier including a sealing located between the inner cylindrical piece and the cooling jacket, and a gas sealing barrier including a sealing located between the outer cylindrical piece and the cooling jacket.

Abstract: The integrated expander and motor-compressor assembly comprises a compression section mounted between the two radial bearings on a trans-mission shaft, an expander cantilevered at a free end of the transmission shaft, a gas diffuser and a duct between the expander and a first radial bearing, the first radial bearing been the closest radial bearing to the expander. The gas diffuser diffuses a gas barrier which is sucked up by the duct.

Abstract: An integrated motor-compressor unit comprising a motor and a compressor coupled to said motor via a rotatable shaft and mounted in a single common housing configured to circulate a cooling fluid in a cooling circuit, wherein the integrated motor-compressor unit comprises a depressurization system configured to depressurize the pressure of the motor.

Abstract: The bundle compressor to a bundle motor for compressor unit compressor unit includes one at fastening device configured to fasten the compressor bundle to a motor casing of the motor compressor unit, and also includes at least one opening sized to couple a motor rotor and a compressor rotor through the at least one opening.

Abstract: This motor-driven compressor equipped with multiple compression sections, the motor-driven compressor including, at least one housing, at least two drive shafts, the at least two drive shafts being rotatably supported in the housing by at least two bearings, a flexible coupling device connecting the drive shafts, an electric motor mounted on a first compression shaft of the at least two drive shafts, and at least two compression sections. A first compression section of the at least two compression sections is cantilevered at a free end of a first compression shaft of the at least two drive shafts, and a second compression section is mounted between two bearings on a second compression shaft of the at least two drive shafts.

Abstract: The balancing and sealing piston for an integrated motor compressor comprising a balancing piston designed to be mounted on a shaft of the motor compressor to compensate for the differential pressure being applied to the wheels of a compression section of the motor compressor between the suction pressure and the discharge pressure, and a sealing device surrounding the balancing piston and designed to be mounted on the case of the motor compressor to render the compression section tight. It furthermore comprises a gas extraction port, the axial position of the extraction port being determined such that the pressure value of the extracted gas is equal to a predetermined value less than the value of the discharge pressure.