Tandem twin power unit engine having an oscillating cylinder

An internal combustion engine power unit, comprising:

• a cylinder assembly comprising an intake cylinder and an exhaust cylinder, the cylinder assembly connected to a trunnion allowing the cylinder assembly to oscillate;
• a parallel piston rod assembly having a first end and a second end, wherein the first end is movable within the cylinder assembly;
• and
• a crank assembly movably attached to the parallel piston rod assembly via a crank throw portion, the crank assembly further connected to a main journal.

A tandem internal combustion engine, comprising:

• a first power unit having an enclosed intake cylinder, an enclosed exhaust cylinder and two pistons each disposed within an enclosed cylinder, wherein each piston compresses air beneath the piston before the compressed air is transferred to the intake cylinder, the first power unit further including a main journal attached to a crank coupler;
• a second power unit having an enclosed intake cylinder, an enclosed exhaust cylinder and two pistons each disposed within an enclosed cylinder, wherein each piston compresses air beneath the piston before the compressed air is transferred to the intake cylinder, the second power unit further including a main journal attached to a crank coupler;
• and
• a crank coupler assembly in physical communication with the crank coupler of the first power unit and the crank coupler of the second power unit.

A tandem internal combustion engine, comprising:

• a first power unit having an enclosed intake cylinder, an enclosed exhaust cylinder and two pistons each disposed within an enclosed cylinder, wherein each piston compresses air beneath the piston before the compressed air is transferred to the intake cylinder, the first power unit further including a main journal attached to a crank coupler and a crank coupler assembly in physical communication with the crank coupler;
• a second power unit having an enclosed intake cylinder, an enclosed exhaust cylinder and two pistons each disposed within an enclosed cylinder, wherein each piston compresses air beneath the piston before the compressed air is transferred to the intake cylinder, the second power unit further including a main journal attached to a crank coupler and a crank coupler assembly in physical communication with the crank coupler;
• and
• a coupling means that couples the crank coupler assembly of the first power unit to the crank coupler assembly of the second power unit.