EP 2309206 A1 20110413 - REFRIGERATION CYCLE
Title (en)
REFRIGERATION CYCLE
Title (de)
GEFRIERZYKLUS
Title (fr)
CYCLE DE CONGÉLATION
Publication
Application
Priority
- JP 2009058292 W 20090427
- JP 2008122301 A 20080508
Abstract (en)
In a refrigeration cycle comprising a compressor, a condenser, a pressure reduction and expansion means, and an evaporator, R1234yf is used as the refrigerant, the refrigerant at the exit side of the evaporator is controlled in a superheated condition, and the refrigeration cycle is operated in a range of 5 to 16 degrees of superheat, and preferably in a range of 10 to 16 degrees of superheat. When the refrigerant used is changed to the new refrigerant R1234yf, while high advantage for improving the coefficient of performance can be achieved, the rise in temperature of the discharged refrigerant is appropriately suppressed so that deterioration of refrigerating machine oil in the refrigerant can be prevented, and a high-efficiency operation can be realized as the entirety of the refrigeration cycle.
IPC 8 full level
CPC (source: EP US)
F25B 1/00 (2013.01 - EP US); F25B 9/002 (2013.01 - EP US); F25B 2400/121 (2013.01 - EP US); F25B 2400/18 (2013.01 - EP US); F25B 2600/21 (2013.01 - EP US)
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
US 2011056236 A1 20110310; CN 102016448 A 20110413; EP 2309206 A1 20110413; EP 2309206 A4 20111012; EP 2309206 B1 20130814; JP 2009270775 A 20091119; WO 2009136566 A1 20091112
DOCDB simple family (application)
US 99168309 A 20090427; CN 200980116874 A 20090427; EP 09742690 A 20090427; JP 2008122301 A 20080508; JP 2009058292 W 20090427