357217bd 357217bd

5.1.2. Five-cylinder diesel engines


Fig. 4.3. A motor compartment with the diesel engine 270 CDI: 1 – electronic block; 2 – lattice of an air inlet of ventilation of salon; 3 – case of the valve of management; 4 – cover of nozzles and candles of heating; 5 – cleaner lever drive; 6 – oil filter; 7 – inlet collector; 8 – a tank for brake fluid with the main cylinder and the amplifier; 9 – block of safety locks and relay; 10 – broad tank of the cooling system; 11 – an air inlet with the air filter; 12 – valve of management of removal of gases; 13 – masloizmeritelny probe; 14 – maslozalivny mouth; 15 – fuel filter; 16 – module of management of the brake system; 17 – a tank of washers (in front — for headlights, behind — for a screen wiper); 18 – a tank for servo-driver oil


Fig. 4.4. Diesel engine 290 TD (OHM 602): 1 – air inlet of inlet system; 2 – cover of a head of cylinders; 3 – the case of valves of management with the operating valve of low pressure; 4 – valve of removal of gases; 5 – transmission; 6 – turbine; 7 – cooling system branch pipes; 8 – the channel of supply of nadduvochny air from the compressor in a radiator; 9 – generator; 10 – fan; 11 – turbocompressor radiator; 12 – conditioner drive; 13 – the channel of supply of nadduvochny air from a radiator in an inlet collector; 14 – drive of the oil pump of a servoupravleniye; 15 – a tank for servo-driver oil; 16 – inlet collector


The engine 290 TD (OHM 602) is the first diesel with direct injection on the Mercedes-Benz cars (fig. 4.3). It is equipped with two valves on the cylinder. The nozzle giving fuel under high pressure (to 310 bars) which ignites directly in the combustion chamber under the influence of hot compressed air is installed in the combustion chamber. According to the characteristics the 5-cylinder engine corresponds 4-cylinder OHM 604. The bent shaft of the 5-cylinder engine is mounted on six (instead of five) basic bearings (fig. 4.4). Since 1999 the release of the line 5-cylinder engine 270 CDI with the Common Rail system which replaced the previous model 290 TD began.