Variable compression ratio engine

Variable compression ratio internal combustion engine

Variable compression ratio piston including oil filter means

Variable compression ratio piston including oil filter means

Variable compression system for internal-combustion engines

Variable cylinder capacity engine

Variable diameter screw combustion engine

Variable displacement reciprocating piston machine

Variable ethanol octane enhancement of gasoline engines

Variable geometry turbocharger

Variable geometry turbocharger

Variable geometry turbocharger with sliding piston

Variable head piston

Variable nozzle turbine control strategy

Variable ratio belt drive system

Variable ratio crank assembly for internal combustion engines

Variable size torch nozzle for internal combustion engine

Variable stroke engine

Variable stroke engine

Variable stroke engine