Koenigsegg TFG

Common card · No. 416216

The Koenigsegg TFG ("Tiny Friendly Giant") is an inline-3 engine. It is a Freevalve (camless piston engine), thus it does not have a camshaft. Instead it uses electro-hydraulic-pneumatic actuators that allow it to open each valve (both intake and exhaust) independently to maximise performance and minimise fuel consumption depending on driving conditions. The actuators also have the ability to switch the engine between 2- and 4-stroke cycles by controlling the number of power strokes in relation to the number of idle strokes. The patent for this system was bought by Koenigsegg's sister company Cargine Engineering in 2002. The variable displacement system allows fuel economy to be 15%-20% higher than a variable camshaft engine. Cold start emissions are also drastically reduced by 60% over a variable camshaft engine. The engine is equipped with the same turbo for each set of exhaust valves developed by van der lee Turbo Systems, So this is a switchable parallel system where at low exhaust...

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