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1. (WO1998049503) REFRIGERATION SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049503 International Application No.: PCT/US1997/021284
Publication Date: 05.11.1998 International Filing Date: 12.11.1997
IPC:
F25B 41/04 (2006.01) ,F25B 45/00 (2006.01) ,F25B 49/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
41
Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler
04
Disposition of valves
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
45
Arrangements for charging or discharging refrigerant
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
49
Arrangement or mounting of control or safety devices
02
for compression type machines, plant or systems
Applicants:
TYLER REFRIGERATION CORPORATION [US/US]; 1329 Lake Street Niles, MI 49120, US
Inventors:
BARROWS, Richard, C.; US
Agent:
DECKER, Ken, C. ; Suite 250 205 West Jefferson Boulevard South Bend, IN 46601, US
Priority Data:
08/843,09725.04.1997US
Title (EN) REFRIGERATION SYSTEM
(FR) SYSTEME FRIGORIFIQUE
Abstract:
(EN) A refrigeration system (10) which controls subcooling by controlling the amount of refrigerant diverted from the condenser (14) to the receiver (16) based upon the difference in temperature between the phase change transition temperature of the refrigerant in the condenser (14) and the liquid refrigerant temperature at the condenser output. Refrigerant is bled from the receiver (16) to charge the system until the condenser pressure causes the difference between the phase change and liquid temperatures to exceed a predetermined value. A controller (100) responds to this condition by simultaneously operating a bleed valve (32) at the receiver inlet (34) and a release valve (56) at its outlet to draw refrigerant from the condenser (14) into the receiver (16). As the condenser pressure drops, the difference between the phase change and liquid temperatures decreases toward the desired amount, and the cycle begins again.
(FR) L'invention concerne un système frigorifique (10) commandant le sous-refroidissement par régulation de la quantité de frigorigène déviée du condenseur (14) au récepteur (16) en fonction de la différence entre la température de transition de phase du frigorigène dans le condenseur (14) et la température du frigorigène liquide à la sortie du condenseur. Le frigorigène est évacué du récepteur (16) de sorte que le système soit chargé jusqu'à ce que la différence entre les températures de transition de phase et du liquide dépasse une valeur prédéterminée sous l'effet de la pression du condenseur. Une unité de commande (100) réagit à cette condition en actionnant simultanément une soupape (32) de décharge à l'entrée (34) du réservoir et une soupape (56) de libération à sa sortie que le frigorigène soit envoyé du condenseur (14) au réservoir (16). A mesure que la pression du condenseur tombe, la différence entre les températures de transition de phase et du liquide diminue à mesure que l'on se rapproche de la quantité désirée, et le cycle recommence.
Designated States: AU, BR, CA, JP, MX
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXPA/a/1998/007270ES2202655EP0912867JP2000513797 CA2253208AU1998055092