CDI Cleanburning powerful and refined compressionignition engines…

9 Июн 2015 | Author: | No comments yet »
Mercedes-Benz E 200 CDI 125hp W210

CDI: Clean-burning, powerful and compression-ignition engines

E 300 BLUETEC

In December 1997, Mercedes-Benz in a new era of diesel engines in passenger with “common rail injection” technology, first in the Mercedes-Benz C-Class (202 CDI engines have a fuel in the form of a central pressure (common rail), from fuel is released into the via solenoid valves as required. rail technology made it to design smooth-running engines low emissions and high torque, and became established as the new standard for car diesel engines.

E 320 BueTEC

C 200 CDI station wagon

Mercedes-Benz E 200 CDI 125hp W210


At the Motor Show (IAA) in 1997, Mercedes-Benz launched the wagon version of its new C 220 Turbodiesel. previous Mercedes-Benz cars had been described as turbodiesel this time the familiar concealed a vehicle that was different from its predecessors, and it became known as the Mercedes-Benz C 220 The new station wagon – along the corresponding sedan – was the world’s production car to be fitted with a engine with direct based on the common rail Its 92-kW (125-hp) four-cylinder OM 611 developed an impressive 300 Nm (221 from just 1800 The C 220 CDI was thus the highest-torque engine in its category and also set new standards in economy and emissions.

OM 611 DE 22 LA engine from the C 220 CDI (W 202)

The outstandingly refined characteristics and performance of this diesel were mainly attributable to the new rail technology, developed with Bosch. The common system differs in several respects from the traditional of prechamber diesel engines, and from other direct injection methods. Whereas conventional systems had to generate the required for each injection CDI engines have a common line (or common rail) in pressure is maintained at a high by a separate high-pressure pump. forms a pressure reservoir which the fuel is distributed to the nozzles via solenoid valves. The improved mixture formation in comparison with older engines is the result of high pressure ratings of up to 1350 bar psi) – available even at low speeds – and variable injection The electronic engine management the fuel requirements separately for cylinder, according to the driving CDI results in lower fuel and exhaust emissions in

comparison with other technologies, along with performance values.

CDI engines also run very mainly because of so-called injection. This refers to the of the combustion chambers through the of a small quantity of diesel injected into the cylinder a few before the actual fuel This results in a less increase in pressure and temperature main injection, and the engine more quietly. Along the common rail technology as the Mercedes-Benz engine developers incorporated some other design features in the new CDI engines, the use of four-valve technology in the four-cylinder of the C 220 CDI.

Mercedes-Benz E 200 CDI 125hp W210
Mercedes-Benz E 200 CDI 125hp W210

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