(19)
(11) EP 0 849 978 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.09.1998 Bulletin 1998/36

(43) Date of publication A2:
24.06.1998 Bulletin 1998/26

(21) Application number: 97500218.9

(22) Date of filing: 19.12.1997
(51) International Patent Classification (IPC)6: H05B 6/02
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 20.12.1996 ES 9602706

(71) Applicant: Rayotherm Espana Vergely, S.L.
08012 Barcelona (ES)

(72) Inventor:
  • Nicolau, Jordi Roca
    08012 Barcelona (ES)

(74) Representative: Marques Alos, Fernando 
Tuset, 34
08006 Barcelona
08006 Barcelona (ES)

   


(54) Device for warming heating liquids at low pressure or with closed expansion vessel


(57) The device In a circulation chamber of the fluid to be warmed surrounded on the outside by an inductor circuit that magnetically shorts circuits.
The inductive charge is fed by a power stage, and other power components, driven by modular drivers which in turn are controlled by a microprocessor with two specific aims, to generate the square wave at the established frequency, which controls the power stage, by means of the drivers, as well as to control the system's functions of heating.






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