EP 1992893 A1 20081119 - METHOD OF RECOVERING REFRIGERATOR OIL
Title (en)
METHOD OF RECOVERING REFRIGERATOR OIL
Title (de)
VERFAHREN ZUR RÜCKGEWINNUNG VON KÄLTEMASCHINENÖL
Title (fr)
PROCEDE DE RECUPERATION D'HUILE DE REFRIGERATEUR
Publication
Application
Priority
- JP 2007053061 W 20070220
- JP 2006046343 A 20060223
Abstract (en)
A first step and a second step are carried out sequentially. In the first step, via a gas side port (28) which is open to the gas side interconnecting line's (24) side of the shut-off position of a gas side shut-off valve (26) mounted at one end of the heat source side circuit (21), refrigeration oil is recovered together with refrigerant present in a portion of the refrigerant circuit (20) , which portion is in fluid communication with the gas side port (28) . In the second step, via a liquid side port (27) which is open to the liquid side interconnecting line's (23) side of the shut-off position of a liquid side shut-off valve (25) mounted at the other end of the heat source side circuit (21) , refrigeration oil is recovered together with a part or all of refrigerant present in a portion of the refrigerant circuit (20), which portion is in fluid communication with the liquid side port (27) , with the gas side shut-off valve (26) placed in the closed state.
IPC 8 full level
F25B 45/00 (2006.01)
CPC (source: EP)
F25B 45/00 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1992893 A1 20081119; EP 1992893 A4 20110601; AU 2007225990 A1 20070920; AU 2007225990 B2 20100211; CN 101379351 A 20090304; CN 101379351 B 20110720; JP 2007225184 A 20070906; JP 3956997 B1 20070808; WO 2007105425 A1 20070920
DOCDB simple family (application)
EP 07714564 A 20070220; AU 2007225990 A 20070220; CN 200780004462 A 20070220; JP 2006046343 A 20060223; JP 2007053061 W 20070220