MB-jev trahtarski oddelek je napisal/-a: * Two-stage turbocharging ensures high power output and optimum torque delivery.
* Fourth-generation common-rail technology with a rail pressure that has been increased by 400 bar to 2000 bar, plus a new piezoelectric injector concept featuring direct injector needle control creates the ideal basis for more flexible injection timing, leading to smoother engine running, lower fuel consumption and reduced emissions.
* The maximum ignition pressure is 200 bar which also contributes to the high output.
* Both the oil-spray nozzles and the water pump are activated in accordance with requirements to save energy.
* The camshaft drive is positioned at the rear in order to enhance running refinement and satisfy the exacting pedestrian protection requirements.
* The engine block is made from cast iron, the cylinder head from aluminium.
* Two water jackets guarantee maximum cooling even at the points of greatest thermal radiation; it is this that enables a ignition pressure of 200 bar and such a high power-to-displacement ratio.
* The aluminium pistons slide up and down in cast-iron barrels for minimum frictional resistance.
* The connecting rods are made from forged steel, and their weight has been optimised by the Mercedes engineers.
* In the interests of vibrational comfort, the forged crankshaft with its eight counterweights turns supported by five bearings. The radii of the crankpins are rolled for high strength.
* To compensate for the free vibration moments which are inherent to four-cylinder inline engines there are two Lanchester balancer shafts at the bottom of the engine block running in low-friction roller bearings rather than conventional plain bearings.
* A two-mass flywheel, featuring a primary flywheel mass fixed to the crankshaft that is connected to the secondary flywheel mass on the transmission by means of springs (technical term: spring-mass system), isolates the crankshaft's vibration stimuli from the drivetrain, thereby contributing to the engine's excellent smoothness.
ESTEMP je napisal/-a:Konec?