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The power supply system of the diesel engine
The power supply system of the diesel engine
1. Fuel filter - do not confuse connections. The direction of the cross section marked by arrows
2. Ring
3. Control valve
4. Fuel return pipe (the fuel tank)
5. retainer
6. The fuel line (from the tank)
7. Screw draining
8. Bolt 25 Nm.
9. The hollow screw 25 Nm - hollow screw reverse fuel supply pipe labeled "CBO" | 10. The switch rod 40 Nm
11. High pressure fuel pump (pump)
12. A fuel injector 70 Nm
13. The heat insulator
14. The pipeline 25 Nm
15. Bolt, 15 Nm - with depressurization tighten torque of over 25 Nm
16. The connecting pipe
17. Lock
18. Shock
19. Holder
20. Console
21. The gear pump
22. Nut, 45 Nm |
In a diesel engine the cylinders, when the piston moves downward, air is sucked clean and sharply shrinks. The temperature inside the cylinder rises above the ignition temperature of diesel fuel. If the piston is to TDC, then heated to a temperature of 700-900 ?� C is injected diesel fuel which ignites spontaneously, so that the spark plug is not required.
When the engine is cold only compression ignition temperature does not reach. In this case, you need to warm up the engine. To this end the vortex chamber is the glow plug, which heats the combustion chamber. Block time management filament glow plugs are provided with current both during and after the engine starts. Moreover, the diesel engine accelerator has a cold start, which is controlled by the throttle before starting button, which is located on the instrument panel. As a result of pulling cold start accelerator piston distributor injection of high pressure fuel pump (pump) is rearranged by about 2,5 ?� before. This fuel is injected into the hot air is also used to cool the engine and run faster. Once the engine reaches operating temperature, cold start accelerator cable should be returned to its original position, sinking to the end button on the instrument panel.
The fuel pump is taken directly from the fuel tank. The high pressure pump before injecting, pressurized to 130-160 bar and then fed to the engine cylinders in order of their operation. Simultaneously, the controller measures the fuel pump depending on the position of the gas pedal. Diesel fuel through nozzles at a certain time is injected into a chamber of the cylinder. The shape of the prechamber or swirl chamber, inlet air receives compressive certain twist, wherein the fuel is mixed with air optimally.
Before you go on the fuel injection pump, it passes through the fuel filter, where it is cleaned of dirt and water. Therefore it is very important in a timely manner in accordance with prescribed maintenance, clean or replace the filter.
Pump does not require maintenance. All moving parts are lubricated by diesel fuel pump. Pump - driven by a crankshaft toothed belt.
Since the engine is a diesel engine with spontaneous ignition of the combustible mixture does not require ignition system with distributor, it has a magnetic valve. When you turn off the ignition voltage supply to the solenoid valve is interrupted and the valve closes the fuel passage. This ensures the termination of the fuel supply before the steering lock is closed. When starting the engine to the solenoid valve, when the starter is energized, and it opens the fuel passage.
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