Global Patent Index - EP 3617391 A1

EP 3617391 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 3617391 A1 20200304 (EN)

Application

EP 18191845 A 20180830

Priority

EP 18191845 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 said second heat exchanger (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 is not in contact with the plurality of fins;∘ and wherein a ratio between a total external volume (TEV2) of all sections of the tube included in the central portion in contact with the plurality of fins (50) and a compressor displacement (Vmax) has a value lower than 26.

IPC 8 full level

D06F 58/20 (2006.01)

CPC (source: CN EP US)

D06F 58/02 (2013.01 - CN); D06F 58/20 (2013.01 - CN); D06F 58/206 (2013.01 - CN EP US); F25B 30/02 (2013.01 - EP); F25B 39/00 (2013.01 - EP); F04C 18/356 (2013.01 - EP); F25B 2400/12 (2013.01 - EP); F25B 2500/01 (2013.01 - EP); F28D 1/0477 (2013.01 - EP); F28F 1/325 (2013.01 - EP)

Citation (applicant)

EP 3066406 B1 20180110 - BSH HAUSGERAETE 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 3617391 A1 20200304; AU 2019208186 A1 20200319; CN 110872774 A 20200310

DOCDB simple family (application)

EP 18191845 A 20180830; AU 2019208186 A 20190723; CN 201910808321 A 20190829