Global Patent Index - EP 1029205 A1

EP 1029205 A1 2000-08-23 - HEAT EXCHANGER FOR WATER HEATER USING HEAT PUMP

Title (en)

HEAT EXCHANGER FOR WATER HEATER USING HEAT PUMP

Title (de)

WÄRMETAUSCHER FÜR WASSERHEIZER MIT EINER WÄRMEPUMPE

Title (fr)

ECHANGEUR DE CHALEUR DESTINE A UN CHAUFFE-EAU UTILISANT UNE POMPE A CHALEUR

Publication

EP 1029205 A1 (EN)

Application

EP 98952433 A

Priority

  • AU 9800926 W
  • AU PP021197 A

Abstract (en)

[origin: WO9924765A1] A water heater comprises a water tank (21) and a heat pump system (20). The heat exchanger (26) includes an inlet manifold (27) connected to the compressor (22), an outlet manifold (28) connected to the evaporator (25) and a plurality of heat exchange tubes (29, 30) connected in parallel between the inlet and outlet manifolds (27, 28). The heat exchange tubes (29, 30) are wound helically around the water tank (21) and are secured to the tank wall (32) in a heat conductive relation with the tank (21). Heat from condensation of the refrigerant liquid circulating through the heat pump system (20) is transferred to water contained in the tank (21). The provision of two or more heat exchange tubes (29, 30) in parallel provides more rapid and efficient heating of water in the tank (21) compared to a single coiled heat exchanger.

IPC 1-7 (main, further and additional classification)

F24H 9/18; F24D 17/02; F24H 1/18; F24H 4/04

IPC 8 full level (invention and additional information)

F24H 4/04 (2006.01); F28D 1/06 (2006.01); F25B 30/02 (2006.01); F25B 39/04 (2006.01)

CPC (invention and additional information)

F24H 4/04 (2013.01); F28D 1/06 (2013.01); F25B 30/02 (2013.01); F25B 39/04 (2013.01)

Citation (search report)

See references of WO 9924765A1

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR LI

EPO simple patent family

WO 9924765 A1 19990520; AU PP021197 D0 19971127; CN 1186206 A 19980701; EP 1029205 A1 20000823; IT 1298167 B1 19991220; IT MI980096 A1 19990505; NZ 504369 A 20011026; WO 9924764 A1 19990520

INPADOC legal status


2006-01-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050531

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000513

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE ES FR GB GR LI