Fuel Oil System(petrol)

                                              

  Complete circuit of petrol fuel systems

                        Watch .... take notes and try to do a sketch in accordance with below., then read the following description;

Petrol Fuel System Circuit

Petrol fuel stored in fuel tanks will be pumped by transfer pump to be sent to the carburetor. Prior to the carburetor fuel will be filtered by the filter so that all the dirt does not enter into the carburettor, where dirt can cause damage to the carburetor.


      Features carburetor is to mix air with fuel at a certain rate into the cylinder during the stroke in and will produce power during the power stroke. The driver will move the throttle valve in the carburetor so that the amount of fuel mixture into the cylinder will vary by driver. And with the speed of vehicles can also be determined.

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Components of petrol fuel systems

Components of petrol fuel systems, tanks, pumps, filters, gauges, and the carburettor


     Fuel Tanks

            Fuel tanks used to store fuel for vehicle travel. Typically, a fuel tank for fuel could save 200 to 500 km journey. These tanks are usually located away from the position of the engine to prevent fires. For large tanks will be built separate pieces, to reduce the prevailing agitation / shaking during the trip. This tank was also placed on the transmitter unit of information to gauge the fuel level indication

     Fuel Pump

   Fuel pump is divided into two types:


             Mechanical fuel pump (diaphragm type)

The action sucked fuel drums
When the carburetor is full, the engine was still alive then jempelang arm would still move. With this one-jointed connection method will allow jempelang diaphragm continues to move but stopped (not moving). With the blessings of this incident did not occur in the carburettor.


      Electric fuel pump (impeller type)

When the switch di'On'kan current will flow into the armature and the armature will rotate and the impeller. Impeller will move the fuel from the tank to the carburetor. When karberetor full fuel flow through the regulator valve and the pump impeller semuka outstanding. With this overflow does not occur

     Fuel level gauge indicator

i) type of loop balance

when the switch is "On" state current will go to the main loop and will be looking for land. While fuel in the tank or less empty, the indicator will be in contact resistance at low (on the sending unit in the tank) with the current efforts will lead to the grounding of the unit (not in the loop) the main loop will become a powerful magnet and pull the meter to the '0 'or MIN.

During a full tank of fuel. pointer in the sender unit (the tank) will appoint a high rate of resistance. Will flow to the grounding of the second loop. With a duplicate of this loop will be a strong magnet and will pull the meter to the FULL or MAXIMUM

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  Bimetallic strip type / Termostastik

when the switch is "On" state current will go to the meter loop and continue heating to the ground through the resistor in the sending unit in the tank.

While less fuel tank or empty the resistance of the transmitter unit is high. With this amount of current flowing in the circuit is small. How hot the heating loop is causing the expansion rate is small and bimetallic STRIP penarikkan rate meter to indicate less low-value (empty or MIN)

During a full tank on the resistance of the sending unit (the tank) is low, then the amount of current flowing in the lot. Heating loop is hot enough and the resulting bimetallic STRIP expand and rejected many meters to the MAXIMUM or full.


    Petrol fuel filter

Fuel filters serve to separate the impurities from the fuel petrol is not so into the carburetor, which can cause damage to the system. Is the type of filter that can replace conventional (disposable). Made from special paper and coated with a transparent plastic container that can be seen if it has too many impurities trapped