cylinder head with swirl chamber function of the valves and bucket tappet (fine springs enable smooth operation) function of the cut up injection nozzle function of the glow plug function of the swirl chamber description ordernumber 1171 see also: Petrol direct injection engine M 270 Mercedes Benz high-pressure pump for engines with direct petrol injection (GDI) Cylinder head model case Cylinder head of a petrol direct injection engine M 271 Evo Mercedes Benz