EP 1719964 A4 20131106 - HEAT EXCHANGER FOR HOT WATER SUPPLY
Title (en)
HEAT EXCHANGER FOR HOT WATER SUPPLY
Title (de)
WÄRMETAUSCHER FÜR HEISSWASSERVERSORGUNG
Title (fr)
CHANGEUR DE CHALEUR POUR ALIMENTATION EN EAU CHAUDE
Publication
Application
Priority
- JP 2005001687 W 20050204
- JP 2004030600 A 20040206
Abstract (en)
[origin: EP1719964A1] A hot water supply heat exchanger includes a water pipe (1) including a water pipe (W) and a refrigerant pipe (2) forming a refrigerant passage (R) and heats water flowing through the water passage (W) by a refrigerant flowing through the refrigerant passage (R). An inlet part (A) of the water passage (W) including water of a predetermined temperature or less is provided with a heat transfer enhancer. This sharply enhances the performance of the whole heat exchanger.
IPC 8 full level
F24H 1/00 (2006.01); F28D 7/00 (2006.01); F24H 9/00 (2006.01); F25B 39/04 (2006.01); F28D 7/02 (2006.01); F28F 1/10 (2006.01); F28F 1/40 (2006.01)
CPC (source: EP US)
F28D 7/0016 (2013.01 - EP US); F28D 7/022 (2013.01 - EP US); F28F 1/10 (2013.01 - EP US); F28F 1/40 (2013.01 - EP US)
Citation (search report)
- [X] US 1833876 A 19311124 - MCGRATH WILLIAM H
- [XY] JP 2003156291 A 20030530 - DAIKIN IND LTD
- [Y] FR 2697077 A1 19940422 - SOFATH [FR]
- [X] JP 2002228370 A 20020814 - DAIKIN IND LTD
- [X] US 5791401 A 19980811 - NOBILE JOHN R [US]
- [Y] JP 2003097898 A 20030403 - DAIKIN IND LTD
- [Y] JP H0972683 A 19970318 - HITACHI CABLE
- [Y] US 3777343 A 19731211 - D ONOFRIO M
- [X] DE 2153654 A1 19720525 - LUFT U KAELTETECHNIK VEB K
- [A] JP H08105699 A 19960423 - HITACHI CABLE
- See references of WO 2005075914A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1719964 A1 20061108; EP 1719964 A4 20131106; CN 1914470 A 20070214; JP 2005221172 A 20050818; JP 4501446 B2 20100714; US 2007119578 A1 20070531; WO 2005075914 A1 20050818
DOCDB simple family (application)
EP 05709752 A 20050204; CN 200580004065 A 20050204; JP 2004030600 A 20040206; JP 2005001687 W 20050204; US 58822805 A 20050204