(19)

(11)

EP 2 542 768 A1

(12)

(43) Date of publication: 09.01.2013 Bulletin 2013/02 (21) Application number: 11743855.6 (22) Date of filing: 21.06.2011

(51) International Patent Classification (IPC):  F02B 63/04(2006.01) H02K 7/18(2006.01) F02B 71/04(2006.01) (86) International application number: PCT/GB2011/051154 (87) International publication number: WO 2012/080709 (21.06.2012 Gazette 2012/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 17.12.2010 GB 201021406 (71) Applicant: Libertine Fpe Ltd York, Yorkshire Y019 4SQ (GB)	(72) Inventor: COCKERILL, Sam York Yorkshire YO19 4SQ (GB) (74) Representative: Smee, Anthony James Michael  Gill Jennings & Every LLP The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)