(19)

(11)

EP 1 377 735 A1

(12)

(43) Date of publication: 07.01.2004 Bulletin 2004/02 (21) Application number: 02704027.8 (22) Date of filing: 13.03.2002

(51) International Patent Classification (IPC)7: F02D 41/20, H03K 17/16 (86) International application number: PCT/SE2002/000465 (87) International publication number: WO 2002/081889 (17.10.2002 Gazette 2002/42)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 03.04.2001 SE 0101187 (71) Applicant: Volvo Truck Corporation 405 08 Göteborg (SE)	(72) Inventor: KARLSSON, Björn S-414 83 Göteborg (SE) (74) Representative: Fröhling, Werner  Volvo Technology Corporation,Corporate Patents,06820, M1.7 405 08 Göteborg 405 08 Göteborg (SE)