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 the carburetor. Is it true that the use of low-quality gasoline quickly leads to the failure of an engine with an injection system?
The word "injector" came to us from the English language. It translates as “nozzle”. The commonly known term "injection fuel system" means the supply of the fuel mixture either directly to the cylinders or to 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, and also AZLK).
Which is better?
Previously, motorists did not think about what is better - an injector or a carburetor. The first engines with an injection system appeared even earlier than the simplest carburetors. But for a long time they were not used because of the high complexity of the design. In the 60s there was a need 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 it was a simple mechanical system. In them, the amount of injected gas directly depended on how much the throttle was opened . But with the gradual development of electrical engineering, mechanical systems were supplanted by electronic ones. Now it is they who equipped the majority of foreign cars operated in our country.
The simplest electronic system includes an electric gasoline pump, an electric control unit, a pressure regulator; sensors for antifreeze temperature (or coolant), the angle of rotation of the throttle valve and the number of revolutions of the crankshaft; as well as the car injector itself. The injection systems of modern cars are much more complicated, because in order to get better engine performance, the circuit also includes a number of devices and sensors - a catalyst, a lambda probe, an intake air temperature
sensor and
a knock sensor.
What are the injection systems
Injector or carburetor? First, find out what kind of injection system. Depending on the place of fuel supply and the number of nozzles, injection systems are of three types: 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 a multi-point system, each ICE cylinder has its own nozzle, which supplies fuel to the manifold near the intake valves. And in the latest systems, the nozzle delivers fuel, like diesel engines, directly to the cylinders.
What is the difference between a carburetor and an injector?
Injection systems have several advantages: reducing exhaust toxicity (due to the precise dosage of gasoline), increasing economy, improving the speed characteristics of the car. Moreover, a correctly working engine with an injection system has the best starting properties, which are independent of temperature. It is also more reliable and more stable. So what to choose - an injector or a carburetor?
Are there any flaws in 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 kindly recall the carburetor.
Secondly, the resource of an injection ICE 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 reduce the life of the engine. To increase its service life, it is necessary to systematically flush injectors - approximately every 23,000 kilometers. Otherwise, they may coke in such a way that no flushing will help.