US 10,890,293 B2
Cryogenic fluid transfer system and method
Erik Gustafson, Woodstock, GA (US)
Assigned to Chart Inc., Ball Ground, GA (US)
Filed by Chart Inc., Ball Ground, GA (US)
Filed on Mar. 6, 2019, as Appl. No. 16/293,985.
Claims priority of provisional application 62/639,311, filed on Mar. 6, 2018.
Prior Publication US 2019/0277450 A1, Sep. 12, 2019
Int. Cl. F17C 7/02 (2006.01); F17C 5/02 (2006.01); F17C 5/00 (2006.01); F17C 7/00 (2006.01)
CPC F17C 7/02 (2013.01) [F17C 5/00 (2013.01); F17C 5/02 (2013.01); F17C 7/00 (2013.01); F17C 2205/0367 (2013.01); F17C 2221/014 (2013.01); F17C 2221/033 (2013.01); F17C 2223/0161 (2013.01); F17C 2223/033 (2013.01); F17C 2225/0161 (2013.01); F17C 2225/033 (2013.01); F17C 2227/0107 (2013.01); F17C 2227/0157 (2013.01); F17C 2227/0311 (2013.01); F17C 2227/042 (2013.01); F17C 2250/0408 (2013.01); F17C 2260/025 (2013.01); F17C 2260/036 (2013.01); F17C 2265/065 (2013.01); F17C 2270/0139 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A cryogenic fluid transfer system comprising:
a. a dispensing tank having a dispensing tank headspace, said dispensing tank configured to store a supply of cryogenic liquid with the dispensing tank headspace above the supply of cryogenic liquid;
b. a receiving tank having a receiving tank headspace;
c. a compressor having an inlet and an outlet;
d. a compressor inlet line in fluid communication with the receiving tank headspace and the compressor inlet;
e. a compressor outlet line in fluid communication with the compressor outlet and the headspace of the dispensing tank;
f. a liquid transfer line in fluid communication with the dispensing tank and the receiving tank and configured to transfer cryogenic liquid from the dispensing tank to the receiving tank when the compressor is activated so as to transfer vapor from the headspace of the receiving tank to the headspace of the dispensing tank to create a pressure differential between the dispensing and receiving tanks; and
g. a compressor bypass line selectively in fluid communication with the headspaces of the dispensing and receiving tanks for equalizing pressures of the dispensing and receiving tanks.