The carburetor or injector?
Application of various constructive decisions often not always is clear for the majority райдеров. However everyone has the merits and demerits.
The carburetor and injector (fuel injection) carry out the same function, namely form air – a fuel mix for its giving in engine cylinders. In what difference and who has advantages?
It would seem for the majority this question it is obvious also they will give a palm to an injector as last has completely forced out the carburetor from automobile motors. For the majority, an injector which is now realized in the form of the device of injection of fuel with electronic control, the thing though also mysterious, but is represented much easier the carburetor. For whom engine work is reduced to turn of a key and the gas handle, will undoubtedly prefer an injector.
However all not so is simple. The injector has appeared as a result of development of electronics and requirements on reduction of emissions from combustion in atmosphere. The carburetor representing difficult system working at the expense of a difference in pressure, образуемых in an inlet collector, its basic channels and atmosphere, at correct adjustment forms optimum structure of a fuel mix. For those who isn't so familiar with this question, we will inform that the fuel mix happens poor, rich and nominal if to estimate it by quantity of fuel of air having on volume arriving in the cylinder. And the carburetor forms such structure of a mix which is necessary to the engine for the concrete moment of work. At start, the enrichment system submits very rich mix necessary for warming up of the engine to the engine. At acceleration, the accelerating pump sharply injected an additional portion of fuel enriching a mix and allowing to raise a twisting moment on low turns. At work without reduction or increase in turns, in cylinders the balanced mix arrives, the impoverished is a bit. Carburetor adjustment is carried out by a selection of fuel and air jets. As a rule in most cases it becomes once. As a result of application of the carburetor the engine receives very good dynamic characteristics, allowing to be accelerated and realize sharply potential of volume not only on high turns, but on averages and even on the low. However, cleanliness of emission left much to be desired.
Appeared electronics has allowed to create an injector which could realize the concept of the impoverished fuel mix, allowing to reach reduction of harmful emissions. However the impoverished mix not only reduced dynamic characteristics in transitive modes, but also raised burning temperature that led to necessity of additional cooling. With air cooling the temperature of combustion of a fuel mix is rather essential to engines. Some heard, and probably and faced that replacement of a regular exhaust system by an exhaust with low resistance, led to an engine overheat. The reason of it in occurrence of the impoverished fuel mix.
Now to steam of words about reliability. The in itself carburetor is simple enough and practically doesn't demand adjustments while in service. If there is a fuel filter and you use qualitative gasoline the carburetor works smoothly. The injector system comprises much more components, such as the pump creating pressure, gages on an input and a final path, the electronic block, operating work of an atomizer. Anyhow, but in due course, what that knots can fail. Even if the got littered carburetor allows to reach to garage refusal of one of injector knots will leave us on a roadside.
Carburetor or injector application will give almost identical maximum мощностные characteristics of engines. But those who has got used to feel capacity and a twisting moment as reaction to turn of the handle of gas, instead of in the form of figures on a paper, will see at once a difference. The engine with the carburetor sharper and sympathetic on opening air заслонки. The injector smoothes characteristics and does by its smoother. The electronic block of management remembering necessity to create impoverished mix simply steals capacity in transitive modes. Thanks to injector application, and its function of smoothings, began possible to increase to volume of engines стоковых motorcycles (Japanese to 2 liters), without effort change on the coupling handle.
Some councils.
Those who wants to receive sharp and приемистый the engine can use the carburetor. Those to whom has had the luck to receive the engine with an injector, can improve its characteristics having changed the engine management program. As it is necessary to remember that at replacement стоковой an exhaust system on афтемаркет, you should think of change of options of the carburetor or an injector.
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Good article, thanks.
For some reason the author doesn't write that on инжекторном the motor any algorithm of management топливоподачей, and not just "zarezanno-ecological", and also flexible adaptation to quality of fuel, a climate and other conditions can be easily realized. Unlike carburetor where any adaptation and the unique algorithm is sewn rigidly up in a carburetor design, and this design strongly narrows a class of algorithms.
Yes the carburetor is the last century, now injection system new steers the wheel. The main thing gasoline qualitative to fill in. I will admit 98 only I fill in.