Global Patent Index - EP 1298395 A3

EP 1298395 A3 20040114 - Heat pump type hot water supply system

Title (en)

Heat pump type hot water supply system

Title (de)

Heizwasserversorgungsanlage mit Wärmepumpe

Title (fr)

Installation à eau chaude avec pompe à chaleur

Publication

EP 1298395 A3 20040114 (EN)

Application

EP 02021700 A 20020927

Priority

JP 2001302126 A 20010928

Abstract (en)

[origin: EP1298395A2] A heat pump type hot water supply system includes a hot water storage tank (3), and a circulation line (12) connecting a water outlet (10) at the lower part of the storage tank (3) and a hot water inlet (11) at the upper part thereof. The circulation line (12) is provided partway therealong with a heat exchange line (14) to be heated by a heat pump heat source. The system is configured to return hot water heated up in the heat exchange line (14) to the hot water storage tank (3) through the hot water inlet (11). When the heated water temperature of the heat exchange line (14) is equal to or below a set point, the return of the water to the hot water storage tank (3) through the hot water inlet (11) is hindered, and when the heated temperature of the heat exchange line (14) is above the set point, the outgoing water from the heat exchange line (14) is returned to the hot water storage tank (3) through the hot water inlet (11). <IMAGE>

IPC 1-7

F24D 17/02; F24D 19/10; F24H 4/04; F24H 9/20

IPC 8 full level

F24H 1/00 (2006.01); F24D 17/02 (2006.01); F24D 19/10 (2006.01)

CPC (source: EP US)

F24D 17/02 (2013.01 - EP); F24D 19/1054 (2013.01 - EP US); F24H 4/04 (2013.01 - EP); F24H 9/2021 (2013.01 - EP); F24H 15/136 (2022.01 - EP US); F24H 15/164 (2022.01 - EP US); F24H 15/227 (2022.01 - EP US); F24H 15/242 (2022.01 - EP US); F24H 15/385 (2022.01 - EP US); F24H 15/414 (2022.01 - EP US); F24D 2220/042 (2013.01 - EP); F24D 2240/26 (2013.01 - EP)

Citation (search report)

  • [XY] US 5052187 A 19911001 - ROBINSON JR GLEN P [US]
  • [XY] EP 0686816 A1 19951213 - CTC FERRO FIL A S [NO]
  • [X] JP 2001263800 A 20010926 - DAIKIN IND LTD
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 018, no. 411 (M - 1648) 2 August 1994 (1994-08-02)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 26 1 July 2002 (2002-07-01)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 09 31 July 1998 (1998-07-31)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

EP 1298395 A2 20030402; EP 1298395 A3 20040114; EP 1298395 B1 20110216; AT E498803 T1 20110315; DE 60239177 D1 20110331; EP 2241829 A2 20101020; EP 2241829 A3 20160615; EP 2241829 B1 20170913; JP 2003106653 A 20030409

DOCDB simple family (application)

EP 02021700 A 20020927; AT 02021700 T 20020927; DE 60239177 T 20020927; EP 10008096 A 20020927; JP 2001302126 A 20010928