(19)

(11)

EP 0 478 717 A1

(12)

(43) Date of publication: 08.04.1992 Bulletin 1992/15 (21) Application number: 91902340.0 (22) Date of filing: 29.01.1991

(51) International Patent Classification (IPC):  F24D 13/ 02( . ) F24H 3/ 00( . ) (86) International application number: PCT/EP1991/000160 (87) International publication number: WO 1991/011665 (08.08.1991 Gazette 1991/18)

(84) Designated Contracting States: DE FR GB (30) Priority: 01.02.1990 IT 19900041511 19.07.1990 IT 19900041661 (71) Applicant: TERMO-TECNOLOGIE AVANZATE S.R.L. I-35020 Albignasego (IT)	(72) Inventor: ZULLO, Giovanni I-35100 Padova (IT) (74) Representative: Modiano, Guido, Dr.-Ing.  Modiano & Associati S.r.l. Via Meravigli, 16 I-20123 Milano I-20123 Milano (IT)