Air cooled rotary distribution valve for internal combustion eng

Annular valve stratified charge spark ignition engines

Breathing system for internal combustion engines, using dual...

Coaxial poppet valve

Combined sleeve/poppet valve for internal combustion engine

Combustion chamber for an internal combustion engine

Concentric intake and exhaust valve assembly

Concentric valve structure

Cylinder head for a four stroke combustion engine

Cylinder head for internal combustion engine and a process of op

Cylinder head with colander valve

Distribution system for the intake and exhaust of a super charge

Double-flow valve for internal combustion engines

Economy engine

Engine air induction circuit

Extended circumference intake poppet valve system for opening an

Four stroke piston engine

Four stroke piston engine

Four-stroke piston engine

Four-stroke piston engine