Global Patent Index - EP 1990587 B1

EP 1990587 B1 20190417 - REFRIGERATION DEVICE

Title (en)

REFRIGERATION DEVICE

Title (de)

KÜHLVORRICHTUNG

Title (fr)

DISPOSITIF DE RÉFRIGÉRATION

Publication

EP 1990587 B1 20190417 (EN)

Application

EP 07714753 A 20070222

Priority

  • JP 2007053255 W 20070222
  • JP 2006053431 A 20060228

Abstract (en)

[origin: EP1990587A1] A refrigerant circuit ( 10 ) includes a gas-liquid separator ( 15 ) and a compressor ( 30 ) including a low pressure side compression mechanism ( 34 ) and a high pressure side compression mechanism ( 35 ) connected to each other by means of a drive shaft ( 33 ). In the refrigerant circuit ( 10 ), a two-stage compression/two-stage expansion refrigeration cycle is performed with CO 2 refrigerant utilized as that at its critical pressure. In the compressor ( 30 ), a volume ratio V2/V1 of the displacement volume V2 of the second compression mechanism ( 35 ) to that V1 of the first compression mechanism is set within a range between 0.8 and 1.3, both exclusive.

IPC 8 full level

F25B 1/10 (2006.01); F25B 1/00 (2006.01); F25B 1/04 (2006.01)

CPC (source: EP)

F25B 1/10 (2013.01); F25B 9/008 (2013.01); F25B 13/00 (2013.01); F25B 2309/061 (2013.01); F25B 2313/0272 (2013.01); F25B 2313/02741 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01)

Citation (examination)

None

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 1990587 A1 20081112; EP 1990587 A4 20141119; EP 1990587 B1 20190417; AU 2007226005 A1 20070920; AU 2007226005 B2 20100520; CN 101384865 A 20090311; CN 101384865 B 20120418; ES 2733021 T3 20191127; JP 2007232263 A 20070913; KR 20080090528 A 20081008; TR 201909681 T4 20190722; US 2009044564 A1 20090219; WO 2007105440 A1 20070920

DOCDB simple family (application)

EP 07714753 A 20070222; AU 2007226005 A 20070222; CN 200780005850 A 20070222; ES 07714753 T 20070222; JP 2006053431 A 20060228; JP 2007053255 W 20070222; KR 20087020719 A 20080825; TR 201909681 T 20070222; US 22408607 A 20070222