Let’s start to learn about different types of carburetors in I C Engines. What do you mean by the term carburetor? 

What is a Carburetor?

The carburetor is a device. The uses in cars to mix air and fuel for internal combustion engines in an appropriate ratio of fuel and air. The term carburetor is also known as carb in UK and Australia. Because of the combustion or burning in the combustion chamber under all operating conditions. We want a proper mixture of air and fuel. To make the process of this proper air-fuel mixture. We need a mechanical device. And that mechanical device is a carburetor.

The carburetor manages the air-fuel ratio.  And controls the speed of the engine. In carburetion, we use always volatile fuel.  Like Petrol, benzol, and alcohol are some volatile fuels used in the carburetion process.

Let’s come to the main part of this page that mentions below.

On this page, you will learn the types of carburetors. In automobile engineering based on the direction of air and fuel flow in the carburetor. Depending upon the directions of air and fuel.

Three Types Of Carburetors

Updraught carburetor:

As the name suggests, in updraught carburetors. The air enters the carburetor from the bottom side and goes upward side against gravity. This carburetor has to lift the sprayed fuel droplets by air friction. This is the main disadvantage of an updraught carburetor. In this carburetor,  the cross-section of the jet tube is small. The carburetor can’t supply the air-fuel mixture at high speed during the high speed of the engine. This big disadvantage makes this carburetor dysfunction obsolete.


Carburetor function

Downdraught carburetor:

In a downdraught carburetor. The flow of the mixture enters the carburetor from the upside and goes downside with the help of gravity. Also, known as a gravity-assisted carburetor. Due to this up-down function of a carburetor. It is usually installed at a level higher than the intake manifolds. This carburetor allows the proper flow of mixture at both high and low engine speeds.

Horizontal or side draught carburetor:

This type of carburetor used when we have the constraint of space for assembly. In a horizontal or side draught carburetor. As the name suggests, the jet tube placed in a horizontal direction. One more advantage of this type of carburetor. It reduces the resistance of the flow due to the absence of the right angle mechanism in the intake area.


Carburetors are used only in petrol engines, not in diesel engines Why?

Yes, the automobile industry use carburetor only in a petrol engine. Not in a diesel or compression ignition engine. Because, In a diesel engine, we use hot compressed air coming from a turbocharger or respiration(natural) to burn the fuel.


On this page, we learn about carburetors and different types of carburetors in IC Engine. We hope, It will helpful for you. Visit our website: Bharat Industry


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