EP 0208526 A3 19891004 - REFRIGERATION METHOD AND APPARATUS
Title (en)
REFRIGERATION METHOD AND APPARATUS
Publication
Application
Priority
GB 8517445 A 19850710
Abstract (en)
[origin: EP0208526A2] In a mechanical refrigeration apparatus of the vapour compression kind, comprising a compressor 2, condenser 4, expansion valve 6, and evaporator 8, a sub-cooler 12 is employed to reduce the temperature of the condensed refrigerant to a value at which at least 90% by volume and preferably all of it remains in the liquid phase on passage through the expansion valve 6. The sub-cooler 12 is cooled by means of a supply of liquid nitrogen from vessel 14. Alternatively, liquid nitrogen is evaporated in a circulating heat exchange atmosphere in the sub-cooler 12. Increased heat load in chamber 10 may thus be met without there necessarily being any increase in the evaporating temperature and pressure.
IPC 1-7
IPC 8 full level
F25B 1/00 (2006.01); F25B 25/00 (2006.01); F25B 40/02 (2006.01)
CPC (source: EP)
F25B 25/00 (2013.01); F25B 40/02 (2013.01)
Citation (search report)
- [A] DE 3025439 A1 19810527 - TYLER REFRIGERATION CORP [US]
- [A] US 4285205 A 19810825 - MARTIN LEONARD I, et al
- [A] DE 3322474 A1 19850117 - LINDE AG [DE]
Designated contracting state (EPC)
BE DE FR IT NL SE
DOCDB simple family (publication)
EP 0208526 A2 19870114; EP 0208526 A3 19891004; AU 5989086 A 19870115; GB 2177786 A 19870128; GB 2177786 B 19891108; GB 8517445 D0 19850814; JP S6266063 A 19870325; ZA 865039 B 19870225
DOCDB simple family (application)
EP 86305218 A 19860707; AU 5989086 A 19860709; GB 8517445 A 19850710; JP 16291286 A 19860710; ZA 865039 A 19860707