Simple carburetor diagram

Design of simple carburetor Carburetor is the device that used to mix air and fuel in an internal combustion engine. Simple carburetor diagram main objective of the carburetor is to provide quality air-fuel mixture for cruising range and for other special requirements likes at starting, idling, acceleration, variable load, and speed operation condition.

Carburetor is a device used for atomizing and vapourizing the fuel and mixing it with the air in varying proportions to suit for changing the operating conditions of engines. The process of breaking up and mixing the fuel with the air is called carburetion. The term vapourization and atomization should be understood clearly. Vaporization is a change of state of the fuel from liquid to vapour whereas atomization is a mechanical breaking-up of the liquid into small particles so that every minute particle of the fuel is surrounded by the air. The carburetor is supposed to supply the fuel air mixture in correct proportion under different conditions of temperature, speed and load on engine. Relatively rich mixture of air fuel ratio of is required by the engine while accelerating or running at high speeds.

Simple carburetor diagram

The process of preparing a combustible mixture of a certain composition from finely atomized fuel and air that occurs outside the engine cylinders is called carburetion, and the device in which this process occurs is a carburetor. The principle of operation of the simplest carburetor is similar to the principle of operation of the atomizer. Carburetor works this way: liquid under the action of discharge flows from the atomizer, and then mixes with air to form a combustible mixture. Simple Carburetor Diagram: intake system diagram with the simplest carburetor; 1 — pipeline; 2 — hole in the float chamber; 3 — diffuser; 4 — spray; 5 — throttle valve; 6 — mixing chamber; 7 — nozzle; 8 — float chamber; 9 — float; 10 — needle valve; Y — simple carburetor, X — ideal carburetor. A nozzle is a metal plug with a small calibration hole through which a certain portion of fuel per unit time passes. The simple carburetor consists of a float chamber 8, a diffuser 3, an atomizer 4 with a jet 7, a mixing chamber 6 and a throttle valve 5. In the float chamber there is a hollow float 9 pivotally connected to the axis and acting on the needle valve Fuel is pumped into the float chamber through a pipeline 1. The hole 2 connects the float chamber to the surrounding air, so atmospheric pressure is constantly maintained in the chamber. During filling of the float chamber 8, the float 9 gradually floats up.

The tip will be slightly above the level of fuel in the float chamber to avoid overflow.

In this post I am going to explain what a simple carburetor is and how it works, not going in deep calculations so a non-technical person can also understand easily. What is carburetor? It is a device which is used in spark ignition engine or you can say petrol engines for proper mixing of air and fuel. As oxygen is needed for combustion so in petrol engine mixing of fuel and air is done through carburettor and then this mixture is sent into the cylinder. Above shown a basic layout diagram of a carburetor, now what I am explaining further you can match it with this diagram to get a proper image of how it works.

Design of simple carburetor Carburetor is the device that used to mix air and fuel in an internal combustion engine. The main objective of the carburetor is to provide quality air-fuel mixture for cruising range and for other special requirements likes at starting, idling, acceleration, variable load, and speed operation condition. Above figure shows a simple carburetor. The main parts of a simple carburetor are carburetor air filter, float chamber, fuel discharge nozzle, metering orifice , choke valve , throttle valve and venturi. The float chamber is vented to the upstream side of the venturi or to the atmosphere. The float goes down as a result of the decreasing amount of fuel inside the chamber. When the fuel level goes down the designed level, the floats go down, actuate the fuel supply valve and admits fuel into the chamber. When fuel reached the designed level, float closes the fuel supply valve. The tip of fuel discharge nozzle from the float chamber is located to the throat of venturi. The tip will be slightly above the level of fuel in the float chamber to avoid overflow.

Simple carburetor diagram

Glad you liked it. A simple carburetor has many limitations. Industries using new carburetors available in the market to tackle this situation. No one uses this carburetor nowadays. Table of Contents.

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Fuel is pumped from the fuel tank to the float chamber through a strainer. Schematic diagram shows the carburetor features of a simple Y and an ideal X carburetor. The other one b to allow air-fuel mixture to the engine known as throttle valve. It consists of a float chamber, main fuel jet, venturi, jet tube, and throttle valve. In the later sections, the advantages, disadvantages and applications shall also be covered. The main parts of a simple carburetor are float bowl, venturi, throttle valve, main jet, idle jet, and choke. We are going to learn the following topics from this article on simple carburetor —. Carburettors were commonly used in older vehicles before fuel injection systems became prevalent, and they come in various types, each with its own unique design and characteristics. Definition of a simple carburetor. Yes, on different load conditions different ratio of air fuel mixture is required for proper working of the engine. The float chamber supplies fuel to the main nozzle through the main fuel jet. These fine fuel particles mix with the incoming air to form air-fuel mixture. When fuel reached the designed level, float closes the fuel supply valve. You received a personal award! View Test Series.

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Working of a simple carburetor. The size of jet is designed very carefully according to required performance of the engine. Because of this vacuum, the fuel comes out from the nozzle in the form of fine spray. When the fuel level goes down the designed level, the floats go down, actuate the fuel supply valve and admits fuel into the chamber. The Meet the Steemians Contest is over - Results are coming soon Additionally, he has interested in Product Design, Animation, and Project design. When the throttle valve opening varies, the air flow rate also varies. Please write about carter automobile carburetor …. You can view your badges on your Steem Board and compare to others on the Steem Ranking Vote for Steemitboard as a witness to get one more award and increased upvotes! Design of simple carburetor Carburetor is the device that used to mix air and fuel in an internal combustion engine.