Global Patent Index - EP 3617393 A1

EP 3617393 A1 20200304 - 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

EP 3617393 A1 20200304 (EN)

Application

EP 18191847 A 20180830

Priority

EP 18191847 A 20180830

Abstract (en)

The present 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 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 of the tube (40) are in contact with said plurality of fins (50), and a first and second end portions where said tube is not in contact with the plurality of fins;▪ defines a thickness (tevap, tcondens) of said central portion (60) along a thickness direction (Y);∘ and wherein the value of the ratio (tcondens/tevap) between a thickness of the central portion (60) of the second heat exchanger (31) and a thickness of the central portion (60) of the first heat exchanger (31) is lower than 1.

IPC 8 full level

D06F 58/20 (2006.01)

CPC (source: CN EP)

D06F 58/20 (2013.01 - CN); D06F 58/206 (2013.01 - CN EP); F28D 1/0477 (2013.01 - EP); F28F 1/32 (2013.01 - EP); F25B 1/00 (2013.01 - EP); F25B 39/00 (2013.01 - EP); F25B 2400/12 (2013.01 - EP); F25B 2500/01 (2013.01 - EP)

Citation (applicant)

EP 3066406 B1 20180110 - BSH HAUSGERÄTE GMBH [DE]

Citation (search report)

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 3617393 A1 20200304; AU 2019208188 A1 20200319; CN 110872782 A 20200310

DOCDB simple family (application)

EP 18191847 A 20180830; AU 2019208188 A 20190723; CN 201910801465 A 20190828