(19)

(11)

EP 1 725 791 A1

(12)

(43) Date of publication: 29.11.2006 Bulletin 2006/48 (21) Application number: 05717905.3 (22) Date of filing: 04.03.2005

(51) International Patent Classification (IPC):  F16H 61/30(2006.01) F16H 63/30(2006.01) (86) International application number: PCT/GB2005/000835 (87) International publication number: WO 2005/085683 (15.09.2005 Gazette 2005/37)

(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: 05.03.2004 GB 0405094 (71) Applicant: RICARDO UK LIMITED Shoreham-by-Sea, West Sussex BN4 5FG (GB)	(72) Inventor: BURKE, John Pius Leamington Spa, Warwickshire CV31 1UD (GB) (74) Representative: Chettle, Adrian John et al Withers & Rogers LLP Goldings House, 2 Hays Lane London SE1 2HW London SE1 2HW (GB)