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(11)

EP 2 094 915 A1

(12)

(43) Date of publication: 02.09.2009 Bulletin 2009/36 (21) Application number: 07851716.6 (22) Date of filing: 21.12.2007

(51) International Patent Classification (IPC):  E02F 9/20(2006.01) (86) International application number: PCT/KR2007/006754 (87) International publication number: WO 2008/078930 (03.07.2008 Gazette 2008/27)

(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 (30) Priority: 22.12.2006 KR 20060133167 (71) Applicant: Doosan Infracore Co., Ltd. Dong-gu Incheon 401-020 (KR)	(72) Inventor: KIM, Yong-Chae Incheon 403-766 (KR) (74) Representative: Barth, Stephan Manuel  Reinhard, Skuhra, Weise & Partner GbR Patent- und Rechtsanwälte Friedrichstrasse 31 80801 München 80801 München (DE)