Global Patent Index - EP 2770278 A1

EP 2770278 A1 20140827 - WATER HEATER

Title (en)

WATER HEATER

Title (de)

WARMWASSERBEREITER

Title (fr)

CHAUFFE-EAU

Publication

EP 2770278 A1 20140827 (EN)

Application

EP 14155464 A 20140217

Priority

JP 2013034189 A 20130225

Abstract (en)

A water heater including: a refrigerant circuit 3 configured by annularly connecting, to one another through refrigerant pipes, a compressor 11, a first radiator 12, an expansion device 13, and an evaporator 14; a hot water tank 21; and a heat medium circuit 4 configured by annularly connecting, to one another through heat medium pipes, the first radiator 12, a second radiator 22, and a circulation device 23, wherein the refrigerant circulating through the refrigerant circuit 3 is carbon dioxide, and in the second radiator 22, the heat medium pipe is wound around an outer surface of the hot water tank 21, and the heat medium releases heat to water in the hot water tank 21. Therefore, it is possible to efficiently produce high temperature water while suppressing precipitation of scale.

IPC 8 full level

F25B 9/00 (2006.01); F25B 25/00 (2006.01)

CPC (source: EP)

F25B 9/008 (2013.01); F25B 25/005 (2013.01); F25B 2309/061 (2013.01); F25B 2339/047 (2013.01)

Citation (applicant)

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 2770278 A1 20140827; EP 2770278 B1 20190731; CN 104006534 A 20140827; JP 2014163566 A 20140908

DOCDB simple family (application)

EP 14155464 A 20140217; CN 201410064728 A 20140225; JP 2013034189 A 20130225