US 11,953,158 B2
Device and process for refueling containers with pressurized gas
Etienne Werlen, Kobe (JP); and Marcus Buck, Wiesbaden (DE)
Assigned to L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Paris (FR)
Filed by L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Paris (FR)
Filed on Oct. 31, 2022, as Appl. No. 17/977,932.
Application 17/977,932 is a division of application No. 16/525,871, filed on Jul. 30, 2019, granted, now 11,506,339.
Claims priority of application No. 18306046 (EP), filed on Aug. 1, 2018; and application No. 2018-145230 (JP), filed on Aug. 1, 2018.
Prior Publication US 2023/0046990 A1, Feb. 16, 2023
Int. Cl. F17C 5/00 (2006.01); B60S 5/02 (2006.01); F17C 5/06 (2006.01)
CPC F17C 5/007 (2013.01) [B60S 5/02 (2013.01); F17C 5/06 (2013.01); F17C 2221/012 (2013.01); F17C 2223/0123 (2013.01); F17C 2225/0123 (2013.01); F17C 2227/0157 (2013.01); F17C 2227/0341 (2013.01); F17C 2265/065 (2013.01); F17C 2270/0139 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A process for refueling containers with pressurized gas with a device comprising gas source and a transfer circuit for transferring compressed gas from the gas source to a container, the process comprising the steps of:
cooling a heat exchanger located in the transfer circuit, the heat exchanger being in heat exchange with the pressurized gas flowing from the source to the container(s), wherein said step of cooling comprises production of a cooling power in an evaporator section of a refrigerant cooling loop circuit, the cooling loop circuit comprising, arranged in series, a compressor, a condenser section, an expansion valve and the evaporator section, the condenser section being in heat exchange with a cold source; and
regulating a suction pressure at an inlet of the compressor via control of a speed of the compressor and control of a quantity of refrigerant compressed by the compressor which is reinjected via a bypass conduit upstream of the compressor without flowing through the condenser section and the expansion valve.