The working of simple carburetor

DFkR...mEbn

16 Oct 2022

There are two types of carburettor one is simple and other is solex carburettor.The main difference in simple carburettor and solex carburettor is the simple carburettor is not use in engine like bike and cars and the solex is used is engine like bikes and cars.the simple carburettor is consist of different parts like float chamber,main fuel jet,Venturi tube jet,meddle and throtle valve.and in solex carburettor the solex carburettor is consist different parts.The solex carburettor has 4 stages.1.Normal running. 2.Cold start up and warm up. 3.Idling and slow speed.4. Acceleration.1.Normal running:-During the normal running of a carburetor, fuel is provided by the main jet tube and the air is provided by the choke or venturi tube. Main jet fuel enters into the air bleed emulsion tube present in the carburetor. There is an air correction jet which is used for the correct balance of air and fuel. An orifice is drilled in the horizontal position in the vertical pipe in the middle of the venturi tube present in the carburetor.2.Cold start up and warm up:-The presence of in-line progressive starter is the main and unique feature of Solex carburetor. The starter valve which is in the form of a flat disc plate has holes with different sizes. These holes in the flat disc connect the starter petrol jet and starter air jet which opens below the throttle valve. The position of the starter level decides when either small or large holes of the flat disc come opposite side of the passage.For starting, a rich mixture of air-fuel is required. So in the start position of the engine, bigger holes on the flat disc are connecting holes. After the engine has started, the starter lever comes to the middle position and now small holes on the flat disc are the connecting holes. Due to these small holes, the amount of petrol required reduces.3.Idling and slow speed:-In idling and slow speed operation, the pilot jet is taken from the main jet. When the engine is at the idle position, the throttle is closed completely and therefore suction applied to the pilot jet. Idling screw is used for variation in the delivery of the petrol through jets. It allows the mixture to become rich.4. Acceleration:-The diaphragm pump system is provided in the Solex carburetor which is used to provide an extra quantity of fuel during acceleration. When you press the accelerator lever for more acceleration, the pump lever which is connected to the accelerator lever also got pressed. Due to this fuel is compressed and it allows to flow through the pump jet and acceleration pump injector to the air-fuel mixing chamber.The solex carburettor is mainly yese in cars bike and other vehicles.the simple carburettor is not use in bikes and other vehicles.The solex carburettor is very important part of the engine and bikes.The advantages of the Solex carburetor are:-1.Easy starting. 2.It is reliable and gives high performance. 3.Allcircuits above-mentioned circuits work separately.4.It reduces waste and carbon formation.5.Throttle response is very high as compared to other carburetors.The solex carburettor is really so amazing and very useful part of the all engine.