Chevrolet Lanos (since 2004 release)
1. Car device
2. Recommendations about operation
3. Malfunctions in way
4. Maintenance
5. Engine
5.1. Features of a design
5.2. Check of a compression in cylinders
5.3. Removal and installation of mudguards of the engine
5.4. Replacement of support of a suspension bracket of the power unit
5.5. Installation of the piston of the first cylinder in the provision of VMT of a step of compression
5.6. Removal, installation and troubleshooting of a flywheel
5.7. Replacement of details of consolidation of the engine
5.8. Head of the block of cylinders
5.9. Removal and installation of the engine
5.10. Repair of the engine
5.11. Lubrication system
5.12. Cooling system
5.13. System of production of the fulfilled gases
5.14. Engine power supply system
5.15. System of catching of vapors of fuel
5.16. System of recirculation of the fulfilled gases
5.16.1. Features of the device
5.16.2. Removal, check and installation of the pneumatic valve of recirculation of the fulfilled gases
5.16.3. Removal, check and installation of the electromagnetic valve of system of recirculation of the fulfilled gases
6. Transmission
7. Running gear
8. Steering
9. Brake system
10. Electric equipment
11. Body
12. Wheels and tires
13. Purchase of spare parts
14. A trip on HUNDRED
15. Winter operation of the car
16. Preparation for checkup
17. Advice to the beginning mechanic
18. Appendices
19. Schemes of electric equipment
 








5-16-1-osobennosti-ustrojjstva.html

5.16.1. Features of the device

The system of recirculation of the fulfilled gases serves for decrease in toxicity of an exhaust (due to reduction of formation of oxides of nitrogen). At high temperature of combustion of fuel-air mix in the combustion chamber a large amount of oxides of nitrogen is formed. Through system of recirculation a part of the fulfilled gases for their reburning comes back to cylinders of the engine that reduces concentration of fresh fuel-air mix and, therefore, temperature in the combustion chamber.
Basic element of system — the recirculation valve installed on an inlet pipe which at the big angles of opening of a butterfly valve allows for a dogoraniye into the inlet highway the fulfilled gases from a final collector on channels in a flange of a branch pipe of a final collector and in an inlet pipe. The electromagnetic valve which is operated, in turn, by the control unit of the engine operates the pneumatic valve.
The system of recirculation of the fulfilled gases does not work under following conditions:
– low temperature of cooling liquid of the engine;
– the engine idles;
– the engine works at full opening of a butterfly valve.
The failure of valves of system of recirculation leads to increase in toxicity of the fulfilled gases. Valves are non-demountable, at failure replace them assembled.

"previous page
5.16. System of recirculation of the fulfilled gases
following page"
5.16.2. Removal, check and installation of the pneumatic valve of recirculation of the fulfilled gases