(19)

(11)

EP 2 008 032 A1

(12)

(43) Date of publication: 31.12.2008 Bulletin 2009/01 (21) Application number: 07732276.6 (22) Date of filing: 03.04.2007

(51) International Patent Classification (IPC):  F24F 13/08(2006.01) F04D 29/70(2006.01) F04D 25/12(2006.01) (86) International application number: PCT/GB2007/001227 (87) International publication number: WO 2007/113553 (11.10.2007 Gazette 2007/41)

(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 LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 03.04.2006 GB 0606689 (71) Applicant: Greenwood Air Management Limited Rustington West Sussex BN16 3LF (GB)	(72) Inventors: CROKE, Anthony, Laurence West Sussex BN16 3LF (GB) KEARSLEY, Paul, Nicholas West Sussex BN17 7LU (GB) (74) Representative: Gardiner, Stephen Robin  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square GB-London EC4Y 8JD GB-London EC4Y 8JD (GB)