EP 3617392 B1 20220525 - LAUNDRY DRYER INCLUDING A HEAT PUMP SYSTEM
Title (en)
LAUNDRY DRYER INCLUDING A HEAT PUMP SYSTEM
Title (de)
WÄSCHETROCKNER MIT EINEM WÄRMEPUMPENSYSTEM
Title (fr)
SÈCHE-LINGE COMPRENANT UN SYSTÈME DE POMPE À CHALEUR
Publication
Application
Priority
EP 18191846 A 20180830
Abstract (en)
[origin: EP3617392A1] The invention relates to a dryer (1) including• A treating chamber (3) where items are introduced and treated with a process air flow;• a heat pump system (30) having a refrigerant circuit in which a refrigerant can flow, said refrigerant circuit including a first heat exchanger (32) where the refrigerant is heated up, a second heat exchanger (31) where the refrigerant is cooled off, a compressor (33) to pressurize and circulate the refrigerant through the refrigerant circuit, and a pressure-lowering device; said first and/or second heat exchanger (32, 31) being apt to perform heat exchange between said refrigerant flowing in said refrigerant circuit and said process air; the refrigerant being a flammable refrigerant;• wherein each of said first and second heat exchanger (32, 31):• is a finned tube heat exchanger comprising a tube (40) having multiple sections (41) one above the other and a plurality of fins (50);• is divided in three portions: a central portion (60) wherein said multiple sections (41) of the tube are in contact with said plurality of fins (50), and a first and second end portions (61, 62) where said tube (40) is not in contact with the plurality of fins (50);• and wherein a ratio between a total external volume (TEV2) of all sections of the tube included in the central portion (60) in contact with the plurality of fins of the second heat exchanger (31) and a total external volume (TEV1) of all sections of the tube included in the central portion (60) in contact with the plurality of fins of the first heat exchanger (32) has a value higher than 0.98.
IPC 8 full level
D06F 58/20 (2006.01)
CPC (source: CN EP US)
D06F 25/00 (2013.01 - CN); D06F 58/02 (2013.01 - CN); D06F 58/20 (2013.01 - CN); D06F 58/206 (2013.01 - CN EP US); F24H 4/06 (2013.01 - CN); F25B 39/00 (2013.01 - CN EP); F25B 2339/02 (2013.01 - CN); F25B 2339/04 (2013.01 - CN); F25B 2400/12 (2013.01 - EP); F25B 2500/01 (2013.01 - EP); F28D 1/0477 (2013.01 - EP); F28F 1/32 (2013.01 - EP)
Citation (examination)
CN 104233735 A 20141224 - HAIER GROUP CORP, et al
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
DOCDB simple family (publication)
EP 3617392 A1 20200304; EP 3617392 B1 20220525; AU 2019208187 A1 20200319; CN 110872775 A 20200310; CN 110872775 B 20230829; PL 3617392 T3 20220926
DOCDB simple family (application)
EP 18191846 A 20180830; AU 2019208187 A 20190723; CN 201910815713 A 20190830; PL 18191846 T 20180830