(19)

(11)

EP 1 740 802 A1

(12)

(43) Date of publication: 10.01.2007 Bulletin 2007/02 (21) Application number: 05722276.2 (22) Date of filing: 24.03.2005

(51) International Patent Classification (IPC):  F01N 3/06(2006.01) (86) International application number: PCT/SE2005/000449 (87) International publication number: WO 2005/095766 (13.10.2005 Gazette 2005/41)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 02.04.2004 SE 0400903 (71) Applicant: Husqvarna AB 561 82 Huskvarna (SE)	(72) Inventor: EDHOLM, Fredrik S-554 47 Jönköping (SE) (74) Representative: Hyltner, Jan-Olof et al Albihns Stockholm AB Box 5581 114 85 Stockholm 114 85 Stockholm (SE)