Injector or carburetor? What's better?

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

Injector or carburetor? What's better? Almost every driver asked this question. In this article, we will tell you how the injector works, what disadvantages and advantages it has, and how it differs from a carburetor. Is it true that the use of poor quality gasoline quickly leads to the failure of an injection engine?

The word "injector" came to us from the English language. It translates as "nozzle". The widely known term "injection power system" means the supply of a fuel mixture either directly into the cylinders or into the intake manifold. Now almost all cars are equipped with such power systems. Therefore, the question “which carburetor is better” is asked only by owners of old cars (some models of VAZ, UAZ, as well as AZLK).

Which is better?

Earlier, motorists did not think about what is better - an injector or a carburetor. The first injection engines appeared even before the mostsimple carburetors. But for a long time they were not used due to the high complexity of the design. In the 60s, it became necessary to reduce the toxicity of exhaust gases as much as possible, which is why fuel injection systems began to be introduced into production cars. At first, these were simple mechanical systems. In them, the amount of injected gasoline directly depended on how much the throttle valve was opened. But with the gradual development of electrical engineering, mechanical systems were supplanted by electronic ones. Now most of the foreign cars operated in our country are equipped with them.

The simplest electronic system includes an electric fuel pump, an electric control unit, a pressure regulator; temperature sensors for antifreeze (or coolant), throttle angle and crankshaft speed; as well as, in fact, the car injector itself. The injection systems of modern cars are much more complicated, because in order to obtain better engine performance, a number of devices and sensors are included in the electrical circuit - a catalyst, a lambda probe, an intake air temperature sensor and a knock sensor.

What are injection systems

Injector or carburetor? First, find out what injection systems are. Depending on the place of fuel supply and the number of nozzles, there are three types of injection systems: multi-point, single-point and direct. The single-point system assumes the presence of a single nozzle, which is located in place of the carburetor. In multi-point system per cylinderThe internal combustion engine has its own injector that supplies fuel to the manifold near the intake valves. And in the latest systems, the nozzle delivers fuel, like in diesel engines, directly into the cylinders.

What is the difference between a carburetor and an injector?

Injection systems have a number of advantages: reduced exhaust emissions (due to the precise dosage of gasoline), increased economy, improved vehicle speed. Moreover, a properly working engine with an injection system has the best starting properties, which do not depend on temperature. It is also more reliable and stable. So what to choose - an injector or a carburetor?

Are there any drawbacks to the injector?

Injectors also have disadvantages. Firstly, these are high requirements for the composition and quality of gasoline, the expensive price of spare parts and maintenance. Therefore, if it becomes necessary to replace the injection system, many motorists remember the carburetor with a kind word.

Secondly, the resource of an injection internal combustion engine largely depends on the quality of the gasoline used. Now the fuel sold at some Russian gas stations contains a variety of mechanical impurities, chemical compounds, resins, which can significantly shorten the life of the engine. To increase its service life, it is necessary to systematically flush the injectors - approximately every 23,000 kilometers. Otherwise, they may become so coked that no amount of flushing will help.