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1. (WO2018183682) INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2018/183682    International Application No.:    PCT/US2018/025151
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 30 01:59:59 CEST 2018
IPC: F01M 11/06
Applicants: QUEST ENGINES, LLC
Inventors: DALMAS, Elario, Dino
BLOM, Roy, A.
Title: INTERNAL COMBUSTION ENGINE
Abstract:
Internal combustion engines that operate in an inverted orientation in which the piston is closer to the local gravitationally dominant terrestrial body's center of gravity at top dead center position than at bottom dead center position are disclosed. The engines may have non-circular, preferably rectangular, cross-section pistons and cylinders, and the pistons may include a skirt with a field of pockets that provide a ringless, non-lubricated, seal equivalent. The pistons also may have a domed piston head with depressions thereon to facilitate the movement of air/charge in the cylinder. The engines also may use multi-stage poppet valves in lieu of conventional poppet valves, and a split crankshaft. The engines may use the pumping motion of the engine piston to supercharge the cylinder with air/charge.