(19)

(11)

EP 0 832 356 A1

(12)

(43) Date of publication: 01.04.1998 Bulletin 1998/14 (21) Application number: 96918617.0 (22) Date of filing: 06.06.1996

(51) International Patent Classification (IPC):  F04B 53/ 16( . ) (86) International application number: PCT/DK1996/000240 (87) International publication number: WO 1996/041953 (27.12.1996 Gazette 1997/04)

(84) Designated Contracting States: AT BE CH DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 10.06.1995 DE 19951021259 (71) Applicant: Danfoss A/S 6430 Nordborg (DK)	(72) Inventors: HANSEN, Ove, Thorböl DK-6430 Nordborg (DK) MARTENSEN, Lars DK-6400 Sönderborg (DK) (74) Representative: Knoblauch, Andreas, Dr.-Ing., et al  Schlosserstrasse 23 60322 Frankfurt 60322 Frankfurt (DE)