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(11)

EP 3 394 514 A1

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(43) Date of publication: 31.10.2018 Bulletin 2018/44 (21) Application number: 16812715.7 (22) Date of filing: 09.12.2016

(51) International Patent Classification (IPC):  F23R 3/14(2006.01) F23R 3/34(2006.01) F23R 3/28(2006.01) (86) International application number: PCT/EP2016/080488 (87) International publication number: WO 2017/108454 (29.06.2017 Gazette 2017/26)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 23.12.2015 EP 15202500 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventors: HIRD, James Lincoln LN6 9GY (GB) SADASIVUNI, Suresh Bracebridge Heath Lincoln LN4 2TW (GB) (74) Representative: Maier, Daniel Oliver  Siemens AG Postfach 22 16 34 80506 München 80506 München (DE)