The principle of operation of the simplest carburetor

In advertisements for the sale of a car, you can find many offers of new, but quite decent cars in good condition. As the saying goes, "ride and ride." But here's the bad luck - a carburetor is installed on the selected car. A rather old device in its type, which scares off modern motorists, especially young people, with its complexity, possible lack of repair parts and possible breakdowns. Whether to buy a car with a carburetor, or find a more modern design with an injection fuel system - you can only make a decision after you understand the nuances of the operation and design of this device.

What is a carburetor and what is it for?

In order for the internal combustion engine to work in optimal mode, it is necessary to mix fuel and air in a certain proportion and feed this mixture into the combustion chamber. The mixture parameters can change depending on the operating mode of the internal combustion engine, the fuel consumption too, which means that you need a device that will do all this in automatic mode.

A carburetor is a device for mixing air with fuel. As a result of its operation, at the right time, atomized gasoline, mixed with air, is supplied to the combustion chamber of the engine, ready for ignition. Despite the fact that the carburetor is one for several cylinders, the mixture through the intake manifold always gets to the right place thanks to the well-coordinated system of operation of all elements of the internal combustion engine.

A bit of history

Early developments at the dawn of the engine era used luminous gas as fuel. The carburetor was simply not needed for such engines at an early stage. The luminous gas entered the cylinders due to the vacuum generated during the operation of the engine. The main problem of such fuel was its high cost and a number of difficulties. in use.

The second half of the 19th century was the period when inventors, engineers and mechanics all over the world tried to replace expensive luminescent gas with a more economical, cheap and affordable type of fuel for an internal combustion engine. The best solution was to use liquid fuel, which is familiar to us today. It is worth considering that such fuel cannot ignite without the participation of air.

An additional device was required to prepare a mixture of air and fuel. Not only that, but it was also necessary to mix air with fuel in the right proportions. To solve this problem, the first carburetor was invented. The device was released in 1876. The early carburetor model was created by the Italian inventor Luigi De Christoforis. In terms of its design and principle of operation, the first carburetor had a number of significant differences from more modern counterparts.

To obtain a high-quality fuel-air mixture, the fuel in the first device was heated, and its vapors were mixed with air. For a number of reasons, this method of forming a working mixture is not widespread. Development in this area continued, and a year later the talented engineers Gottlieb Daimler and Wilhelm Maybach created an internal combustion engine that had a carburetor operating on the principle of fuel atomization. This device formed the basis for all subsequent developments.

Carburetor device