6.1.10. The carburettor
Carburettor details on cars without neutralizer
1. An emulsionnaja tube secondary камерв
2. The solenoidal valve of correction of idling
3. The thermoelectric drive air заслонки
4. The case air заслонки
5. A lining поплавковой chambers
6. The lever of the accelerating pump
7. An arm
8. An arm
9. Диффузор the secondary chamber
10. A jet экономайзера
11. A jet of correction of idling
12. The main air jet of the primary chamber
13. Small диффузор the primary chamber
14. The valve экономайзера
15. The main fuel jet of the primary chamber
16. The case
17. An observation port поплавковой chambers
18. The main fuel jet of the secondary chamber
19. A jet of idling of the primary chamber
|20. The needle valve
21. A float
22. An axis
23. The piston of the accelerating pump
24. An emulsionnaja tube of the primary chamber
25. The return valve of the accelerating pump
26. The valve of the accelerating pump
27. The solenoidal valve отсечки fuel
28. A diaphragm of the secondary chamber
29. The coil of the accelerating pump
30. A lining
31. The adjusting screw
32. The shock-absorber throttle заслонки
33. The case
34. The adjusting screw
35. Draught air заслонки
36. The lever throttle заслонки
37. Draught of the accelerating pump
38. The screw of quality of a mix
39. The restrictive plug
CARS WITHOUT NEUTRALIZER
Carburettors Nikki 21L – two-chamber, with a falling stream and automatic air заслонкой. Throttle заслонка the secondary chamber opens under the influence of a pneumodrive.
The carburettor case consists of three sections, the average section is separated from section throttle заслонок теплоизоляционной by the prorate.
For adjustment of turns of idling the screw with the conic termination is provided. Отсечка fuel it is provided with the electromagnetic valve.
For additional enrichment of a mix at full loading of the engine the jet эконостата is provided.
The system of preparation of a mix in normal power setting includes the main fuel jet, эмульсионная a tube, an air jet and small диффузор.
For additional injection of fuel at sharp dispersals the accelerating pump which is put in action from the draught connected to the lever throttle заслонки is provided. Regulation of a dose of fuel of the accelerating pump depending on a thermal mode of the engine is provided with the electromagnetic valve operated from the thermoswitch.
The screw of adjustment of turns of idling is closed by the restrictive plug.
Automatic increase of turns of idling at additional loading on the engine (for example at inclusion of headlights or the conditioner) is provided перепускным with the electromagnetic valve.
Air заслонка it is supplied by a thermoelectric drive which represents the spiral bimetallic spring which is heated up by the proceeding current.
CARS WITH NEUTRALIZER
Carburettors of these cars are equipped by the quick-response electromagnetic valve for maintenance стехиометрического structure of a gas mixture which the processor block (this block also operates operates the ignition moment).
On the processor block signals from gauges arrive.
The basic operating signals are signals from gauges of pressure of a stream of air and an angle of rotation коленвала (the gauge of an angle of rotation is mounted in the ignition distributor).
Additional gauges, on the basis of signals with which regulate mix structure are:
– The gauge of temperature of a cooling liquid;
– The switch throttle заслонки;
– The gauge of neutral position of transmission;
– The gauge of deenergizing of coupling;
– The gauge of speed of the car;
– The gauge of exhaust gases.
The management block compares the arriving information and develops the signals operating the moment of ignition, the valve of stabilisation of structure of a gas mixture, idling, etc., providing optimum conditions for start-up and engine work in various thermal modes.
For decrease in toxicity of the fulfilled gases and maintenance of traction qualities on the cold engine, between a collector and the carburettor the electroheater is established. After warming up of the engine the management block closes отсечной the valve that raises profitability and reduces toxicity of emissions in atmosphere.
The part of cars is equipped with systems рециркуляции and an additional fence of air.