EP 3358277 A4 20180808 - REFRIGERANT LEAKAGE SPOT SPECIFYING METHOD
Title (en)
REFRIGERANT LEAKAGE SPOT SPECIFYING METHOD
Title (de)
VERFAHREN ZUM SPEZIFIZIEREN EINER KÄLTEMITTELLECKAGESTELLE
Title (fr)
PROCÉDÉ DE SPÉCIFICATION DE POINT DE FUITE DE RÉFRIGÉRANT
Publication
Application
Priority
- JP 2015195327 A 20150930
- JP 2016078489 W 20160927
Abstract (en)
[origin: EP3358277A1] Provided is a refrigerant leakage spot identifying method that is capable of identifying a refrigerant leakage spot when a refrigerant leakage has occurred while restraining an increase in cost. The refrigerant leakage spot identifying method applied to a refrigeration apparatus (100) is a method for identifying a refrigerant leakage spot when a leakage of refrigerant has occurred in a refrigerant circuit (RC) including a compressor (11) and a liquid-side closing valve (17), a gas-side closing valve (18), and a utilization-side expansion valve (32), the valves being capable of being in a closed state to block the flow of the refrigerant. The method includs a step for dividing the refrigerant circuit (RC) into a plurality of refrigerant flow paths by setting each of the valves to the closed state in the state of the compressor (11) being stopped; and a step for determining whether or not there is a leakage of the refrigerant in each of the refrigerant flow paths by detecting a change in the state of the refrigerant in each of the refrigerant flow paths after the first step.
IPC 8 full level
F24F 11/89 (2018.01); F25B 45/00 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP)
F24F 11/36 (2017.12); F25B 45/00 (2013.01); F25B 49/02 (2013.01); F25B 2313/006 (2013.01); F25B 2500/222 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/2108 (2013.01)
Citation (search report)
- [XAI] JP 2005241050 A 20050908 - MITSUBISHI ELEC BUILDING TECHN
- [IAY] US 2011302941 A1 20111215 - TAKATA SHIGEO [JP]
- [Y] JP 2014095514 A 20140522 - PANASONIC CORP
- [A] JP H04369370 A 19921222 - HITACHI LTD
- [A] EP 1876403 A1 20080109 - DAIKIN IND LTD [JP]
- See references of WO 2017057377A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3358277 A1 20180808; EP 3358277 A4 20180808; EP 3358277 B1 20190807; ES 2753754 T3 20200414; JP 2017067396 A 20170406; JP 6191671 B2 20170906; WO 2017057377 A1 20170406
DOCDB simple family (application)
EP 16851548 A 20160927; ES 16851548 T 20160927; JP 2015195327 A 20150930; JP 2016078489 W 20160927