(19)

(11)

EP 2 536 943 A2

(12)

(88) Date of publication A3: 28.04.2011 (43) Date of publication: 26.12.2012 Bulletin 2012/52 (21) Application number: 09805897.7 (22) Date of filing: 16.12.2009

(51) International Patent Classification (IPC):  F03B 13/08(2006.01) (86) International application number: PCT/BG2009/000019 (87) International publication number: WO 2010/069013 (24.06.2010 Gazette 2010/25)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 20.12.2008 BG 11029108 (71) Applicant: Genchev, Georgi 1632 Sofia (BG)	(72) Inventor: Genchev, Georgi 1632 Sofia (BG)