(19)

(11)

EP 2 521 885 A1

(12)

(43) Date of publication: 14.11.2012 Bulletin 2012/46 (21) Application number: 11706792.6 (22) Date of filing: 21.02.2011

(51) International Patent Classification (IPC):  F24J 2/14(2006.01) (86) International application number: PCT/EP2011/052481 (87) International publication number: WO 2011/110415 (15.09.2011 Gazette 2011/37)

(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: 09.03.2010 US 311823 P (71) Applicant: Siemens Concentrated Solar Power Ltd. 99107 Beit Shemesh (Industrial Area West) (IL)	(72) Inventors: COHEN, Gabriel 60850 Shoham (IL) EZER, Rami 52383 Ramat Gan (IL) (74) Representative: Maier, Daniel Oliver et al Siemens AG Postfach 22 16 34 80506 München 80506 München (DE)