1992-1998 of release
Repair and operation of the car
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling systems, heating
+ 5. Fuel, exhaust systems
- 6. System of decrease in toxicity
6.2. Electronic control system
6.3. Electronic control unit
+ 6.4. System of onboard diagnostics
+ 6.5. Sensors of system of automatic control of the engine
6.6. System of catching of vapors of gasoline
6.7. System of recirculation (EGR system)
6.8. System of compulsory ventilation of a case (PCV system)
6.9. Catalytic converter
+ 7. Transmissions
+ 8. Coupling and half shafts
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment
Device of system of compulsory ventilation of a case
The system of compulsory ventilation of a case is intended for decrease in content of hydrocarbons in emissions of the engine at the expense of an engine case purge with the subsequent suction of intra crankcase gases. The fresh air which is selected from the air filter mixes up in internal space of the engine with intra crankcase gases and goes through a zolotnik of system of ventilation for reburning in engine cylinders.
The main components of system are the spool-type device, the channel of selection of air and connecting hoses.
For maintenance of steady operation of the engine the spool-type device which rummages inflow of mix of intra crankcase gases at low depression on the soaking-up highway idling serves. At violation of normal operation of the engine (for example, at wear of piston rings) the formed many intra crankcase gases go via the air-channel back to the air filter for reburning in the combustion chamber.
Mix of gases and air comes to the camera of a butterfly valve. In the area near a butterfly valve later time resinous deposits are formed. These deposits should be deleted periodically.