Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Load children
F25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
Load children
F25J
LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
Load children
2270/00
Refrigeration techniques used
Load children Filter patents View analytics View as hierarchy
F25J2270/14
External refrigeration with work-producing gas expansion loop
Load children Filter patents View analytics View as hierarchy
F25J2270/16
with mutliple gas expansion loops of the same refrigerant
Filter patents View analytics View as hierarchy