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EP 3 615 772 A1

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(43) Date of publication: 04.03.2020 Bulletin 2020/10 (21) Application number: 18790577.3 (22) Date of filing: 27.04.2018

(51) International Patent Classification (IPC):  F01C 1/00(2006.01) F04C 2/00(2006.01) F02B 67/00(2006.01) F01C 9/00(2006.01) F04C 9/00(2006.01) F02B 75/00(2006.01) (86) International application number: PCT/US2018/029947 (87) International publication number: WO 2018/201045 (01.11.2018 Gazette 2018/44)

(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: KH MA MD TN (30) Priority: 28.04.2017 US 201762491629 P 04.05.2017 US 201762501318 P 23.03.2018 US 201815934625 23.03.2018 US 201815934742 27.03.2018 US 201815937293 27.03.2018 US 201815936713 28.03.2018 US 201815938130 28.03.2018 US 201815938427 30.03.2018 US 201815941397 (71) Applicant: Quest Engines, LLC Coopersburg, PA 18036 (US)

(72) Inventors: DALMAS, Elario, Dino Macungie PA 18036 (US) BLOM, Roy, A. Coopersburg PA 18036 (US) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)