Daewoo Nexia

since 1994 of release

Repair and car operation



Deu Neksiya
+ Maintenance instruction
+ Maintenance
+ Engine
+ 3. Engine (two top camshafts)
+ cooling System
- Fuel and exhaust systems
   5.2. System of injection of fuel
   5.3. Modes of functioning of system
   - 5.4. Main knots of system
      5.4.1. Fuel tank, pump and pipelines
      5.4.2. Distributive fuel pipeline
      5.4.3. Fuel nozzles
      5.4.4. Regulator of pressure of fuel
      + 5.4.5. Butterfly valve case
      5.4.6. Relay of pressure of oil
      5.4.7. Relay of turning on of the fuel pump
      5.4.8. Check of giving of the fuel pump
      5.4.9. Fuel tank
      5.4.10. Accelerator pedal
      5.4.11. Fuel filter
      5.4.12. Fuel pump
      5.4.13. Dumping of pressure of fuel in system
      5.4.14. Distributive fuel pipeline
      5.4.15. Fuel nozzles
      5.4.16. Regulator of pressure of fuel
      5.4.17. Butterfly valve case
      5.4.18. Sensor of provision of a butterfly valve (DDZ)
      5.4.19. Valve of idling (KHH)
      5.4.20. Replacement of the case of a butterfly valve
      5.4.21. System of compulsory ventilation of a case (SPVK)
      5.4.22. Check of functioning of the valve of ventilation of a case (KVK)
      5.4.23. System of production of the fulfilled gases
      5.4.24. Catalytic converter
      5.4.25. Reception exhaust pipe and catalytic converter
      5.4.26. The forward exhaust silencer with an intermediate exhaust pipe
      5.4.27. The back exhaust silencer with an exhaust pipe
+ Electric chain
+ 7. Ignition system
+ 8. Electronic control unit and sensors
+ Transmission
+ 10. Five-speed transmission and main RPO MM5 broadcast
+ 11. Automatic Transmission
+ Steering
+ Running gear
+ 14. Forward suspension bracket
+ 15. Drive of forward wheels
+ 16. Back suspension bracket
+ Brake system
+ Body
+ Heating, ventilation
+ Electric equipment


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5.4.4. Regulator of pressure of fuel

GENERAL INFORMATION

Regulator of pressure of fuel

1. VACUUM PIPELINE
2. SEALING RING
3. REGULATOR CASE
4. UNION OF THE DRAIN PIPELINE
5. SEALING RING OF THE UNION
6. DIAPHRAGM
7. PRESS SPRING
8. COVER OF THE VACUUM CAVITY OF THE REGULATOR

The regulator of pressure of fuel includes the reduktsionny valve with a press spring and a diafragmenny sensitive element, fig. Regulator of pressure of fuel. The diaphragm divides two cavities of a regulator: fuel and vacuum. The vacuum cavity is connected by the pipeline to an inlet collector of the engine. In a vacuum cavity also press spring of a regulator is located. Function of a regulator is maintenance of the set stable pressure of the fuel arriving to nozzles, and correction of this pressure depending on engine loading. At razryazheniye reduction in an inlet collector, pressure of fuel in system increases. The regulator of pressure of fuel is established on the end of the distributive pipeline and is not subject to repair in operation.

At the working engine the regulator supports pressure of fuel in system in a range of 284-225 kPas.

If pressure leaves for the bottom border, normal work двигате ля is broken and EBU establishes a code of malfunction 44. At a fuel elevated pressure more than 325 kPas appear a strong smell of the fulfilled gases and the code of malfunction 45 is established.