Internal combustion engine with supercharger

Claim 1

An internal combustion engine including a crankcase, at least two opposed power cylinder and piston assemblies and two opposed supercharger cylinder and piston assemblies mounted in said crankcase, a single crankshaft journalled on a vertical axis in said crankcase, piston means in each of said cylinders each piston having a connecting rod, said crankshaft having a single power throw on which both power piston connecting rods are journalled and a single second throw on which both supercharger piston connecting rods are journalled, a flywheel fixed on said crankshaft between said power throw and said second throw, means for admitting air into said supercharger cylinders and means for conducting compressed air from each supercharger cylinder to its adjacent power cylinder, means for injecting fuel into said power cylinder, ignition means for igniting said fuel and timing means for properly sequenced timing of the entrance and exhaust of fuel and gases into and from said cylinders and for ignition within said power cylinders, a sump for lubricating material formed in said crankcase at its lower part, pump means communicating with said sump to pump said lubricating material from said sump throughout means in said engine to distribute said material, a turbine wheel journalled in said crankcase coaxially with said crankshaft, means for conducting exhaust gases from said power cylinder to said turbine wheel and guide means adjacent said wheel to direct said exhaust gases to impinge on said wheel.