(19)

(11)

EP 3 391 484 A1

(12)

(43) Date of publication: 24.10.2018 Bulletin 2018/43 (21) Application number: 16806127.3 (22) Date of filing: 06.12.2016

(51) International Patent Classification (IPC):  H01T 13/08(2006.01) H01T 13/50(2006.01) H01T 13/40(2006.01) H01T 13/54(2006.01) (86) International application number: PCT/EP2016/079965 (87) International publication number: WO 2017/102465 (22.06.2017 Gazette 2017/25)

(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: 18.12.2015 GB 201522418 (71) Applicant: Caterpillar Energy Solutions GmbH 68167 Mannheim (DE)	(72) Inventor: SCHAEFER, Friedrich 67480 Edenkoben (DE) (74) Representative: Kramer Barske Schmidtchen Patentanwälte PartG mbB  European Patent Attorneys Landsberger Strasse 300 80687 München 80687 München (DE)