Hyundai Elantra

since 2000-2004 of release

Repair and car operation

Elantr's Hyundai
+ Petrol engines 1,6, 1,8 and 2,0 of l
+ Diesel engine of 2,0 l
+ greasing System
+ cooling System
- Fuel system
   + Fuel system of petrol engines
   - Fuel system of diesel engines
      General information about system of injection of "Common Rail"
      Characteristics of system of injection
      Control injection of fuel
      Main injection of fuel
      Additional injection of fuel
      Reduction of toxicity of the fulfilled gases
      Fuel system Common Rail
      EDC control system
      Management of the maximum quantity of air arriving in the engine
      The active shock-absorber reducing fluctuations of frequency of rotation of a cranked shaft of the engine
      Engine switching off
      Glow plugs
      Removal and nozzle installation
      Installation of the fuel pump of a high pressure
      Measuring instrument of a consumption of air (Air flow sensor – AFS)
      The sensor of temperature of cooling liquid (ECT)
      Sensor of provision of a camshaft (CMP)
      Sensor of an angle of rotation of a cranked shaft
      The sensor of pressure of fuel in the accumulator of a high pressure (RPS)
      Sensor of temperature of fuel (FTS)
      Valve of adjustment of pressure
      Search and elimination of malfunctions
+ Monitoring systems and decrease in toxicity of the fulfilled gases
+ ignition System
+ System of preliminary heating of the diesel engine
+ Coupling
+ Mechanical transmission
+ Automatic transmission
+ Power shafts, forward and back axes
+ Suspension bracket
+ Steering
+ Brake system
+ Body
+ air Central air
+ Electric equipment
Electric circuits

Control injection of fuel

Control injection of fuel can be made in the provision of a cranked shaft 90 ° to VMT. If the beginning of injection of fuel occurs less than 40 ° to VMT, fuel can be postponed on a surface of the piston and walls of the cylinder and to lead to undesirable dissolution it in engine oil. At control injection a small amount of diesel fuel (1 … 4 cm3) move in the cylinder in «previously conditional» the combustion chamber.

Efficiency of combustion of fuel can be improved and the following effects are reached:

– pressure of compression insignificant to start reaction and incomplete combustion of fuel that, in turn, brings to:

    to delay of ignition of the main injection of fuel; to pressure reduction at combustion of fuel and to smoothing of peaks of pressure (softer combustion).

These effects reduce noise from combustion, reduce fuel consumption and in many cases reduce toxicity of the fulfilled gases. In case of speed of unloading without control injection of fuel according to compression only the insignificant increase in pressure before VMT which reaches a maximum rather sharply in a point of the maximum pressure takes place.

The sharp increase in pressure together with abrupt peak makes the significant contribution to noise creation at fuel combustion in the diesel engine. As is shown in curve speed of unloading with control injection, pressure about VMT reaches some higher value and pressure increases with smaller speed. As it reduces an ignition delay, control injection makes an indirect contribution to formation of a torque of the engine. Specific fuel consumption can increase or decrease as function of the main injection and time between control and main injection of fuel.

Lifting of the needle valve of a nozzle and speed of unloading without control injection