(19)
(11) EP 1 500 896 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.12.2009 Bulletin 2009/51

(43) Date of publication A2:
26.01.2005 Bulletin 2005/04

(21) Application number: 04388051.7

(22) Date of filing: 21.07.2004
(51) International Patent Classification (IPC): 
F28F 9/26(2006.01)
F28D 7/00(2006.01)
 F28F 9/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL HR LT LV MK

(30) Priority: 23.07.2003 DK 200301101

(71) Applicant: Invensys APV A/S
8600 Silkeborg (DK)

(72) Inventor:
  • Jensen, Tage Erland
    6100 Haderslev (DK)

(74) Representative: Friese, Martin et al
Patentanwälte Andrae Flach Haug Balanstrasse 55
81541 München
81541 München (DE)

   


(54) A coupling element for a heat exchanger


(57) The invention relates to a plate water heater (1) comprising a coupling element (3) and a plurality of heat exchanger plates combined to form a plate stack (2a) and configured in such a manner that, between adjoining heat exchanger plates, separate flow passages are formed for conveyance of a heat-emitting liquid and a heat-absorbing liquid, respectively, said coupling element (3) comprising flow channels (21, 22, 23, 24) for conveyance of liquid between the flow passages and the couplings (7, 8, 9, 10), and regulator means (6) for regulating the liquid flow in the heat-emitting liquid. Thereby it is accomplished that there will always be hot liquid in the flow channel for heat-emitting liquid (the primary circuit) immediately the need arises for liquid to be heated in the secondary circuit. This need for hot water will be particularly pronounced in cases where the plate water heater is used for heating utility water.







Search report