| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2aef2d0718520f0ce189c4982a77eb74 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B43-003 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-3804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17C3-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B9-002 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B9-14 |
| filingDate |
2013-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4944101644d60b7bd7a85be128286857
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12d249029d35da548a275341f181a830 |
| publicationDate |
2013-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2501191-A |
| titleOfInvention |
Cryogenic refrigeration system |
| abstract |
A cryogenic refrigeration system 100 comprising a conduit 9 arranged as a cooling circuit through which a coolant fluid is pumped 1. The conduit is in thermal communication with a least one cooled stage for cooling the coolant fluid to a first temperature, and comprises a cryotrap 5 in communication with the coolant fluid. The cryotrap removes contaminants from the coolant fluid by cryogenic pumping. The conduit further comprises a flow impedance 8 (needle valve) for cooling the coolant fluid to a second temperature lower than the first temperature. A hydrogen filter 7 is upstream of the flow impedance and in communication with the coolant fluid, and cooled to a temperature below the freezing point of hydrogen in the coolant fluid to remove contaminant hydrogen from the coolant fluid. The cryotrap and hydrogen filter may have a heater to accelerate regeneration of them. A zeolite molecular trap 3 which may be heated may be located upstream of the cryotrap. A particulate filter 2 may be located downstream of the pump to remove contaminant associated with the pump. Applications include cooling a Magnetic Resonance Imaging system. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2018261366-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3345188-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017037456-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10699829-B2 |
| priorityDate |
2012-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |