Mercedes S-Class W-140
1991-1999 of release
Repair and operation of the car
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
+ Routine maintenance
+ Cooling systems, heating
- Power supply system and release
+ A power supply system and injection of fuel of the petrol engine - the general information
+ System of injection of fuel of the diesel engine - the general information
+ Control system of injection of fuel and HFM-SFI ignition (6-cylinder petrol engines)
+ Control systems of the LH-SFI and ME-SFI engine (8-cylinder petrol engines)
+ Control systems of injection of fuel and ignition of ME-SFI and LH-SFI (12-cylinder petrol engines)
+ Control system of fuel injection (diesel engines of the OM603.971 series)
+ Control system of fuel injection (diesel engines of the OM606.961 series)
- System of a turbo-supercharging - the general information
The intercooler - the general information, removal and installation
Systems of decrease in toxicity of release - the general information
System of production of the fulfilled gases - the general information
Catalytic converter (petrol models)
+ Engine electric equipment
+ Gear shifting box
+ Automatic transmission
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
System of a turbo-supercharging - the general information
Turbocompressor - general information, removal and installation
General informationTurbocompressor design (on the example of the engine 603.971)
The turbocompressor is intended for increase in engine capacity by increase in pressure of air in the inlet pipeline. Air not just comes to cylinders, and moves in them under pressure. According to increase in air supply, TNVD increases fuel supply.
Function chart of management of pressurization (engine 603.971)
The turbine of the compressor is given to rotation by the fulfilled gases. Gases, passing through a special casing (a compressor casing), move to the compressor turbine. The turbine rotates on a shaft on which other end there is a compressor wheel in a separate casing. It gives air under pressure to the pipeline.
Between the compressor and the pipeline the intermediate cooler of compressed air is established (intercooler). In the intercooler air is cooled, compressing at the same time. Partial pressure of oxygen increases that leads to increase in engine capacity.
Air pressure in the pipeline is limited to the special sensor. At achievement of extreme pressure the sensor opens the gate, limiting to that supply of the fulfilled gases to the turbine.
The shaft of the compressor is oiled motive which moves on specially intended hose. The shaft constantly "floats" in oil. From the compressor oil is taken away in the pallet on a returnable hose.
The turbocompressor is a component of a final collector and cannot be separated from it.
Precautionary measuresSpeed of rotation of turbines of the compressor is huge, and working temperature is very big. To avoid getting injured and also not to damage a turbocompressor, observe the following precautionary measures: