Gas is mixed with air by a common mixer installed before the turbocharger( s) . Gas flow is controlled by a throttle valve, which is electronically operated by the ComAp control system InteliDrive BF according to the required engine output and speed. In order to avoid knocking of the engine, ComAp knocking detector/ controller DENOX is installed, thus enabling engine operation at the most efficient gas/ diesel ratio. System for conversion of industrial diesel engines to bi– fuel operation by substitution of typically 50– 80% natural gas for diesel. Suitable for all High Speed Engines, 1200– 1800 RPM No reduction of engine power or efficiency Smooth transition between diesel and bi– fuel operations at any time Gas and air are blended behind air filter before turbocharger by central mixer State of the art electronics maximizes the amount of injected gas while keeping all engine parameters within limits specified by the engine manufacturer No modifications of internal engine components are required