Grooved double combustion chamber rotary engine

High compression rotary engine

High Efficiency rotary piston combustion engine

Hinge valved rotary engine with separate compression and expansi

Ignition apparatus for a rotary internal combustion engine

Intake air control system for an automotive engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine

Internal combustion engine having rotating pistons

Internal combustion engine of circular impulsion

Internal combustion engine of three rotation piston

Internal combustion engine with substantially continuous...

Internal combustion engine with toroidal cylinders

Internal combustion rotary engine

Internal combustion rotary power plant system