F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B41/00—Fluid-circulation arrangements
F25B41/30—Expansion means; Dispositions thereof
F25B41/31—Expansion valves
F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
Dispositif de lubrification d'un palier recevant un arbre rotatif d'un element d'un circuit ferme fonctionnant selon un cycle de rankine et procede utilisant un tel dispositif.
Organe de detente adapte pour un fluide refrigerant a base d'un melange comprenant du 1,1,1,2-tetrafluoropropene ("hfo-1234yf") et du trifluoroiodomethane ("cf31"