Spark ignited internal combustion engines

Spark ignition combustion engine of the fuel injection type and

Spark ignition direct injection system

Spark ignition engine with pressure-wave supercharger

Spark ignition timing control system for internal combustion eng

Spark timing control

Spark timing control apparatus for use with a internal combustio

Spark timing control circuit for controlling the timing of spark

Spark timing control device for an internal combustion engine

Spark timing control for marine propulsion devices

Spark timing control method and device

Spark timing control of multiple fuel engine

Spark timing control system for a vehicle-driving internal combu

Spark timing control system for internal combustion engine

Spark timing controller for spark ignited internal combustion en

Spark-ignition internal combustion engine

Spark-ignition internal combustion engine capable of preventing

Spark-ignition internal combustion engine capable of reducing no

Special purpose blends of hydrogen and natural gas

Speed dependent ignition controller and method