EP 2754979 A1 20140716 - Refrigerating plant with ejector
Title (en)
Refrigerating plant with ejector
Title (de)
Kälteanlage mit Ejektor
Title (fr)
Installation frigorifique avec éjecteur
Publication
Application
Priority
IT PD20130004 A 20130115
Abstract (en)
The invention relates to a refrigerating plant with ejector, operating with a refrigerant according to a vapour compression cycle and comprising in a main circuit 200A: - a condenser 210; - an expansion device 211 positioned downstream of the condenser 210; -an evaporator 214 positioned downstream of the expansion device 211; - compression means 215 which are positioned downstream of the evaporator 214 and comprise a first low pressure compression stage 215b fluidically connected to the evaporator and a second high pressure compression stage 215a fluidically connected to the condenser 210. The plant comprises an ejector 216 positioned between the two compression stages, which comprises a first inlet 216a for a driving flow, a second inlet 216b for a driven flow and an outlet 216c for ejection of the mixture of the two flows. The ejector is fluidically connected to the first low pressure stage at the second inlet and to the second high pressure stage at the outlet. The plant comprises a receiver of liquid 212 positioned in the main circuit between the outlet of the ejector and the second high pressure stage. In the receiver the refrigerant ejected by the ejector separates into the liquid phase and the vapour phase. The plant comprises a secondary branch 200B which connects the receiver in parallel to the first inlet of the ejector and comprises at least one pump 221 which recirculates the liquid phase at the first inlet of the ejector. The vapour phase of the refrigerant is aspirated by the second high pressure stage of the compression means.
IPC 8 full level
F25B 1/10 (2006.01); F25B 1/06 (2006.01); F25B 41/00 (2006.01)
CPC (source: EP)
F25B 1/10 (2013.01); F25B 41/00 (2013.01); F25B 41/39 (2021.01); F25B 9/008 (2013.01); F25B 40/00 (2013.01); F25B 2309/061 (2013.01); F25B 2341/0012 (2013.01); F25B 2341/0014 (2013.01); F25B 2400/0751 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01)
Citation (applicant)
- IT 1351459 B
- GB 1132477 A 19681106 - JOSEPH KAYE & COMPANY INC
- US 2007101760 A1 20070510 - BERGANDER MARK [US]
Citation (search report)
- [A] US 2011005268 A1 20110113 - OSHITANI HIROSHI [JP], et al
- [A] JP 2004212025 A 20040729 - DENSO CORP
- [A] WO 2012012493 A2 20120126 - CARRIER CORP [US], et al
- [A] US 2012247146 A1 20121004 - YAMADA ETSUHISA [JP], et al
- [A] US 4102392 A 19780725 - SCHNEIDER THEODORE S
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 2754978 A1 20140716; EP 2754979 A1 20140716; EP 2754979 B1 20160406; ES 2581063 T3 20160831; IT PD20130004 A1 20140716
DOCDB simple family (application)
EP 13196598 A 20131211; EP 13196599 A 20131211; ES 13196599 T 20131211; IT PD20130004 A 20130115