EP 1548379 A1 20050629 - Refrigerating apparatus and control method thereof
Title (en)
Refrigerating apparatus and control method thereof
Title (de)
Kühlgerät und Steuerverfahren dafür
Title (fr)
Appareil frigorifique et méthode de côntrole associée
Publication
Application
Priority
JP 2003427025 A 20031224
Abstract (en)
A refrigerating apparatus (1) and a control method thereof which can rapidly detect the fact that no high pressure refrigerant is introduced into an oil equalizing tube (11) due to failure of an opening/closing value (13), etc., thereby being capable of preventing the flow of oil mist, and thus, preventing damage to compressors (3, 4). The refrigerating apparatus includes a plurality of compressors (3, 4) connected in parallel in a refrigerant circuit (2), an oil equalizing tube (11) adapted to connect shells of the compressors, a bypass tube (12) adapted to connect the oil equalizing tube to a discharge refrigerant line (8) of the compressors, and an opening/closing valve (13) arranged at an intermediate portion of the bypass tube. The bypass tube, which is positioned between the opening/closing valve and the oil equalizing tube, is provided with a temperature sensor (14) adapted to detect a temperature of the bypass tube itself or an internal temperature of the bypass tube. <IMAGE>
IPC 1-7
IPC 8 full level
F25B 1/00 (2006.01); F04B 49/24 (2006.01); F25B 31/00 (2006.01); F25B 49/00 (2006.01)
CPC (source: EP KR)
F04B 49/24 (2013.01 - EP); F25B 1/00 (2013.01 - KR); F25B 31/004 (2013.01 - EP); F25B 49/00 (2013.01 - KR); F25B 2400/04 (2013.01 - EP); F25B 2400/075 (2013.01 - EP); F25B 2500/06 (2013.01 - EP); F25B 2700/1931 (2013.01 - EP); F25B 2700/2101 (2013.01 - EP); F25B 2700/2105 (2013.01 - EP)
Citation (applicant)
JP H04222354 A 19920812 - DAIKIN IND LTD
Citation (search report)
- [X] EP 1367259 A1 20031203 - TOSHIBA CARRIER CORP [JP]
- [A] WO 03085332 A1 20031016 - DAIKIN IND LTD [JP], et al
- [A] EP 1293734 A1 20030319 - TEKO GES FUER KAELTETECHNIK MB [DE]
- [A] US 2002073721 A1 20020620 - SEO HYEONG-JOON [KR], et al
- [A] US 2003010046 A1 20030116 - FREUND PETER W [US], et al
- [A] WO 0246664 A1 20020613 - DAIKIN IND LTD [JP], et al
- [A] EP 1170558 A2 20020109 - SANYO ELECTRIC CO [JP]
- [A] EP 0838640 A2 19980429 - MATSUSHITA REFRIGERATION [JP]
- [A] US 5634345 A 19970603 - ALSENZ RICHARD H [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1548379 A1 20050629; EP 1548379 B1 20070919; CN 1313782 C 20070502; CN 1637361 A 20050713; DE 602004009027 D1 20071031; DE 602004009027 T2 20080619; JP 2005188771 A 20050714; JP 3946191 B2 20070718; KR 100539593 B1 20051229; KR 20050065256 A 20050629
DOCDB simple family (application)
EP 04254258 A 20040715; CN 200410063856 A 20040713; DE 602004009027 T 20040715; JP 2003427025 A 20031224; KR 20040053091 A 20040708