Subaru Legacy

since 1990-1998 release

Repair and operation of the car

Subaru Legacy
+ 1.1. Identification numbers
+ 2. Maintenance
+ 3. Engines
+ 4. Heating, ventilation
- 5. Fuel system
   5.1. Introduction
   5.2. Technical characteristics
   5.3. Removal of pressure in fuel system
   5.4. Check of the fuel pump
   5.5. Fuel pump
   5.6. Fuel separator (only models 4WD)
   5.7. Fuel level sensor
   5.8. Fuel tank
   5.9. Casing of the air filter
   5.10. Accelerator cable
   5.11. Electronic system of injection of fuel
   5.12. Fuel system
   5.13. System of air supply
   5.14. System of electronic control
   5.15. Check of system of injection of fuel
   + 5.16. Check and replacement of elements of system of injection of fuel
   5.17. Turbocharger
   5.18. Check of the executive mechanism of the gate of a turbocharger
   5.19. General check of a turbocharger
   5.20. Removal and installation of a turbocharger
+ 6. Exhaust system
+ 7. Systems of start, ignition
+ 8. Transmissions
+ 9. Coupling, shaft
+ 10. Brake system
+ 11. Suspension bracket
+ 12. Steering
+ 13. Body
+ 14. Electric equipment


5.17. Turbocharger


Scheme of work of a turbocharger

Turbocharger details

1 – the giving oil pipe
2 – entrance branch pipe of a turbocharger
3 – gate valve regulator
4 – turbocharger
5 – cooling pipe
6 – oil return pipe
7 – arm

The turbocharger consists of the centrifugal air pump and the turbine connected by means of the general rigid axis among themselves. Both of these elements rotate in one direction and with an identical speed. Energy of a stream of the fulfilled gases which in ordinary engines are not used will be transformed here to the torque putting the compressor in action. There is it so. The fulfilled gases which are going out of engine cylinders have high temperature and pressure. They disperse to high speed and come into contact with shovels of the turbine which will transform their kinetic energy to mechanical energy of rotation. This transformation of energy is followed by decrease in temperature of gases and their pressure. The turbocharger sucks in air via the air filter, squeezes it and gives to engine cylinders. The amount of fuel which can be mixed with air at the same time can be increased that allows the engine to develop big power.