(19)

(11)

EP 0 922 158 A1

(12)

(43) Date of publication: 16.06.1999 Bulletin 1999/24 (21) Application number: 98917791.0 (22) Date of filing: 21.04.1998

(51) International Patent Classification (IPC):  F01C 1/ 10( . ) F02B 53/ 00( . ) F01C 19/ 04( . ) (86) International application number: PCT/NL1998/000223 (87) International publication number: WO 1998/049435 (05.11.1998 Gazette 1998/44)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 25.04.1997 NL 19971005904 (71) Applicant: De Geus, Pieter Adolf NL-3011 MH Rotterdam (NL)	(72) Inventor: De Geus, Pieter Adolf NL-3011 MH Rotterdam (NL)