Global Patent Index - EP 2023060 A1

EP 2023060 A1 2009-02-11 - FREEZING APPARATUS

Title (en)

FREEZING APPARATUS

Title (de)

GEFRIERVORRICHTUNG

Title (fr)

APPAREIL DE CONGÉLATION

Publication

EP 2023060 A1 (EN)

Application

EP 07744293 A

Priority

  • JP 2007060873 W
  • JP 2006151480 A

Abstract (en)

A refrigeration system (1) includes first to third compressors (11a, 11b, 11c) connected in parallel and an oil separator for separating a refrigeration oil from a refrigerant discharged from the compressors (11a, 11b, 11c). A main suction pipe (55) in which a refrigerant to be sucked into the compressors (11a, 11b, 11c) flows includes a primary curved portion (101) and a primary branch element (102) assembled to part of the main suction pipe (55) downstream of a junction with an oil return pipe (71) for returning the refrigeration oil separated by the oil separator. The main suction pipe (55) is branched by the primary branch element (102) into a first suction pipe branch (61a) of the first compressor (11a) and a connecting suction pipe (56). In the primary branch element (102), the first suction pipe branch (61a) is at the bottommost position and the outermost position in the direction of a radius of curvature of the primary curved portion (101).

IPC 8 full level (invention and additional information)

F25B 1/00 (2006.01)

CPC (invention and additional information)

F25B 31/004 (2013.01); F25B 41/003 (2013.01); F25B 13/00 (2013.01); F25B 2400/075 (2013.01)

Citation (search report)

See references of WO 2007139093A1

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 MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

EP 2023060 A1 20090211; AU 2007268608 A1 20071206; CN 101454623 A 20090610; JP 2007322048 A 20071213; KR 20090018971 A 20090224; TW 200809150 A 20080216; US 2009229301 A1 20090917; WO 2007139093 A1 20071206

INPADOC legal status


2014-05-28 [18W] APPLICATION WITHDRAWN

- Effective date: 20140416

2012-08-08 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2009-02-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081211

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS