Which is better: carburetor or injection ICE. Which is better: carburetor or injector - differences, pros and cons

Fuel system car consists of various nodes and parts that can perform similar functions. For the engine to work, a fuel supply system is needed, and the solution to such problems is to install a carburetor or injector. Although these devices have fundamental differences in construction, their task is to prepare combustible mixture. Depending on the model of the car, one of these systems is installed, and it is quite simple to find out how the injector differs from the carburetor.

Carburetor device

The carburetor is simplest form devices for supplying and spraying gasoline. The process of mixing fuel with air is carried out mechanically, and the adjustment of the mixture supply requires careful tuning. Carburetor system thanks to the use simple mechanisms easy to maintain. An experienced motorist can perform such repairs on their own, which gives certain advantages in operation. For such operations, it is not difficult to purchase a repair kit, and all work is carried out regular tool available in the car.

The carburetor is located on the intake manifold, and its design consists of a float and mixing chambers. For fuel supply, a spray tube is used, connecting the chambers to each other. Fuel is supplied to the float chamber using a gasoline pump, and a needle filter and a float provide a stable supply of gasoline. The mixing chamber is also called air and consists of a diffuser, atomizer and throttle valve. When the pistons move, a vacuum is created that provides suction atmospheric air and gasoline. This mixing ensures stable operation of the engine.

Injector device

Injector - has a more advanced fuel supply control system. All transactions are controlled electronically. Such equipment with high accuracy calculates the portion of fuel necessary for the operation of the engine. To determine the desired flow rate, readings are taken from a variety of vehicle sensors, and the microcontroller instantly makes the necessary calculation. To understand what better carburetor or an injector, it is worth comparing their device and giving preference to a more practical model.

Fuel is supplied to the injector using special nozzles. This principle of operation differs from carburetor injection, and almost all modern cars are equipped with it. The injection of fuel into the air stream is automatic and depends on the engine operating mode. The nozzle itself opens due to the action of an electromagnet, and closing is done using a spring. In such a system, constant pressure is maintained by a special valve on the ramp, which dumps excess fuel.

Depending on the brand of the car and the features of the engine, the following options for connecting injectors can be used:

• Single point (single injection);
• Multipoint (distributed);
• Direct (direct injection).

Such a system requires precise injection control and depends on the quality of the fuel. For such purposes, the injector uses the electronic unit control, matching the supply of gasoline to driving conditions.

Fundamental differences between a carburetor and an injector

The task of the carburetor is to prepare and supply the air-fuel mixture, which is necessary for the operation of the engine. Moreover, such a mixture is supplied regardless of the engine operating mode. This fuel supply system is characterized by high flow and heavy pollution of the atmosphere by exhaust gases.

You can determine the difference between an injector and a carburetor by studying their principle of operation and the main differences. An engine equipped with an injector receives fuel in a precisely calculated dosage, which eliminates overspending. The use of such technology has not only an economic effect. The power of the engine running under the control of the injector increases by an average of 10%. It also improves the dynamics of the car, which has a positive effect on its handling.

Benefits of a carburetor

The carburetor fuel supply system has passed decades of testing and has the right to count on the attention of drivers. Its main advantage lies in the possibility of repair in almost any unforeseen situation away from service center. The advantages and differences of such technology are easy to see from the following indicators:

• Lower cost of the device and its operating costs;
• Lack of carbon deposits and relative undemanding to fuel;
• Ease of repair and low cost of services;
• Using engine power to suck up fuel.

The carburetor is sensitive to temperature conditions. Extreme heat or freezing temperatures can make it difficult to start the engine. It is worth noting that the carburetor is considered obsolete technology and does not meet the requirements of EURO 3.

Advantages of the injector

Modern electronic fuel delivery systems are superior to the carburetor in many ways. In this case stable work engine extends the life of the equipment, and makes repairs rare. A significant difference between the carburetor and the injector can be seen in the advantages of the electronic system.

• Optimal fuel composition for any engine mode;
• High reliability automatic system injection;
• Better handling with increasing speed;
• Insensitivity to negative temperatures;
• Advantages in power and moderate fuel consumption.

The injector has proven itself in various conditions operation. Such equipment is sensitive to fuel quality and questionable refueling should be avoided. Repair of the injector is expensive, but given its resource and reliability, this system is preferable to the carburetor.

Selecting the optimal fuel supply system

Thinking about the difference between an injector and a carburetor, many motorists come to the conclusion that the electronic system is much more reliable. However, the conversion of any car is not economically viable and will only lead to unnecessary costs. The decision to choose a more economical system is relevant when buying a car. Understanding the difference between an injector and a carburetor is quite simple, and such knowledge will definitely come in handy.

The carburetor has already served its time in the modern car market. Despite its advantages, the use of an injector is the most effective and meets all environmental requirements. Carburetor engines are used mainly in older cars, but this technology has proven itself well and does not need to be improved. The use of an injector has many advantages and this system is installed without a choice in any new car.

If you have any questions - leave them in the comments below the article. We or our visitors will be happy to answer them.

December 22, 2017

At the end of the last century, power systems gasoline engines began to massively modernize - the good old carburetors were replaced by simpler and high-tech injectors, electronically controlled. However, obsolete fuel supply devices continue to work properly on many domestic cars mobiles. For beginners who are not versed in the topic and planning to buy a used car, it will be useful to understand how an injection engine differs from a carburetor engine.

General concept of carburetors

The principle of operation of these devices is based on carburation - mixing fuel with air and supplying it to the manifold due to the vacuum created by the engine pistons. The unit itself is mounted on a flange intake manifold and receives gasoline from the pump mechanical action through a tube. Air is sucked into the chambers from above through the filter element, control is carried out using rods and cables.

The carburetor body houses a float chamber and many small parts that work as part of several systems:

1. Starter mechanism with air damper and diaphragm opening drive.
2. The main fuel dosing system includes throttle valves, diffusers and 2 groups of jets - fuel and air. The latter stand in wells and work in conjunction with emulsion tubes.
3. Idle channels, where their own jets for the dosage of gasoline and air are located.
4. Forced enrichment device air-fuel mixture- accelerator pump.
5. Economizer and econostat - additional systems that improve the performance of the carburetor.

Note. Far from all the details of the unit are listed here - their number is too large. The first difference between an injector and a carburetor is the simplicity of design and the absence of a large number of wear parts.

For a cold start of a carburetor engine, the driver must pull out the “choke” lever by turning on the trigger. Due to the closed air damper the combustible mixture is greatly enriched, due to which the engine starts. The algorithm for further work looks like this:

1. A running engine creates a vacuum in the manifold and thus draws gasoline mixed with air through the idling channels.
2. When the gas pedal is pressed, the throttle of the primary chamber opens. The intake of an increased amount of the mixture begins through the main diffuser and the first pair of jets. The car starts moving.
3. Further acceleration leads to the opening of the second throttle and an increase in the dose of the air-fuel mixture.

To smooth out the "dips" that occur during overclocking, a special mechanical drive presses the accelerator pump diaphragm. The atomizer installed in the primary chamber supplies a stream of clean gasoline to the manifold when the driver presses the accelerator pedal sharply.

How does an injection motor work?

In addition to a simpler design, the injector differs from the carburetor in terms of the principle of operation. Here the main element is the nozzle - atomizer with electromagnetic drive, supplying a combustible mixture directly into the combustion chamber or into the intake manifold. The injectors are controlled by an electronic unit that collects the readings of the following sensors:

• provisions crankshaft;
• mass air flow (abbreviated as DMRV);
• lambda probe ( more about the sensor);
• throttle position (DPPV);
• speed;
• detonation.

Reference. To replace the meters air flow gradually comes a new kind of devices - sensors absolute pressure(DAD).

The injection of gasoline with air is forced into the combustion chambers. The pressure in the fuel rail, where all the nozzles are connected, is provided by an electric fuel pump. When the nozzles consume little fuel, the pressure in fuel line limited by a valve that dumps gasoline back into the tank.

"Seeing" the position of the crankshaft, the controller selects the moment the nozzle is turned on when the piston in the cylinder moves down. The amount of the supplied mixture depends on the duration of the sprayer and is determined by the control unit using the throttle position sensors and the DMRV. The remaining meters are needed to adjust the proportions of gasoline and air in the mixture.

Thanks to the lambda probe built into exhaust pipe, the controller is aware of the fuel combustion quality. Velocity and knock meters provide a more complete picture of performance power unit. In the engines of more modern cars are placed additional devices– sensors camshafts, allowing the electronic unit to track the valve timing.

Comparison of fuel supply systems

To summarize briefly, the difference between a carburetor and an injector is as follows:

1. The first allows the engine to suck in a combustible mixture through a system of calibrated holes, the second forcibly supplies fuel to the cylinders through injectors.
2. Carburetor control is completely mechanical. Only on the latest modifications appeared solenoid valves operating from primitive forced idle controllers (PHX). Injection feed fuel is fully electronically controlled.
3. The injector is fuel rail with injectors, whose number is equal to the number of cylinders. A carburetor is a complex mechanical assembly consisting of many small parts.
4. The injector nozzles are located in the immediate vicinity of the combustion chambers or are mounted in them. The carburetor is bolted to a common manifold that distributes the mixture among the cylinders.
5. Gasoline for carburation is supplied by a pump driven by a crankshaft drive. The injector rail receives fuel from an electric fuel pump submerged in the tank.

Reference. The principle of the injector has long been implemented in diesel engines. Atomizers feed clean diesel directly into the cylinders during the compression stroke.

Despite the complexity of the design and the abundance of small elements, the carburetor is easier to maintain with your own hands. A motorist can independently disassemble the unit, clean the jets, replace the membranes, or adjust the gasoline level in the float chamber.

Not so easy with the injector - troubleshooting electronic circuit or sensors are much more difficult. But the reliability of the system plays a role here - the carburetor requires maintenance once per 20 thousand kilometers, and it is advisable to clean the nozzles at intervals of 40–50 thousand km. The service life of the sensors is at least 50 thousand km, during which time the carburetor will have to be disassembled twice. Please note that during operation, jets often become clogged and diaphragms become unusable.

By performance characteristics the injector also wins, and here's why:

• facilitated by forced injection cold start motor;
• for the same reason it is easier to start worn engine with reduced compression, which is not able to draw fuel from the carburetor;
• electronics provides a more accurate dosage and ratio of gasoline to air in the mixture, and this gives an increase in engine power and a decrease in fuel consumption.

For these reasons, drivers of cars equipped with an injector will never go back to the carburetor, and the younger generation does not know about it at all. The outdated method of fuel supply is retained only on some sports cars and domestic cars with high mileage.

Relatively recently, under the hood of any automobile engine running on gasoline, one could find a carburetor - a device responsible for filling the cylinders with a fuel mixture. Recently, it has been replaced by a new device - an injector.

However, not everyone knows what is the difference between them. The proposed article contains information about technical features the systems mentioned.

Historical digression

The first liquid carburetor operating on the principle of evaporation was created in 1872, according to other sources - in 1876. And 20 years later (1893), the Italian Donat Banki developed a device based on gasoline spraying. Gradually improving and growing various systems, it existed for automotive engines almost a century.

The pedigree of the injector dates back to the same time. Ever since 1902, the engines of the French engineer and racing driver Levasseur contained some elements of mechanical fuel injection.

The idea was borrowed by aviation designers, who were interested in the fact that the operation of the injector does not depend on the force of gravity. By the end of the Second World War, they appeared on some aircraft of the warring parties, including the USSR.

First time on stock car mechanical forced injection received the Mercedes-Benz 300SL ("Gull Wing") in 1954. And electronically controlled fuel injection was tested by the Italians before the war.

Since the 80s of the last century, they have become widespread due to the advent of affordable electronic components for creating electronic engine control systems. On modern cars almost never found, except for some racing cars.

The principle of operation of the carburetor

Carburation, translated from English, is gasification, saturation of air with vapors, mixture formation. A carburetor is a mixer, that is, a device for spraying the smallest particles of fuel into the air.

How is this device schematically arranged? The device is installed on the intake manifold and consists of two chambers: a float and a mixing chamber, which are interconnected by a spray tube.

The first is communicated through a pipeline with fuel tank. Fuel is supplied to it by a fuel pump. constant level gasoline is maintained by a needle valve and a float, similar to a toilet inlet.

The second (air) chamber includes a diffuser (Venturi tube), atomizer and throttle valve. The cavity in front of the diffuser communicates with the atmosphere through the air filter, and the mixing chamber - through the intake manifold with the engine cylinders. At the bottom of the spray tube on the side of the float chamber there is a calibrated hole (jet), which measures the required amount of fuel to form a combustible mixture.

When the pistons move in the mixing chamber, a rarefaction is created, the maximum of which falls on the place where the diffuser narrows, where the atomizer opening is also located. There is a suction of outside air from the atmosphere and gasoline through the spray tube. Gasoline, getting into a moving air stream, is sprayed and mixed with the air volume.

How the injector works

Fuel injection device (Fuel injection system) is actually more primitive than that of a carburetor, which is the focus of the most complex systems that obey the laws of fluid flow. In fact, here one working element is an injector or nozzle, which is one and the same.

The nozzle has only two states: open and closed. It opens with a built-in electromagnet, closes with a spring. The amount of fuel supplied is determined by the duration of the inclusion. Gasoline is pumped from the tank to a common line (fuel rail), from which the injection nozzles are powered.

To maintain a constant pressure on the rail, there is a valve that dumps excess fuel back into the tank. There are several options for connecting injectors:

• Single point (single injection).
• Multipoint (distributed). It is divided into parallel (simultaneous), pairwise-parallel and phased.
• Direct or direct injection.

The electronic control unit (ECU) controls the operation of the injectors. A microprogram is “hardwired” in its memory, issuing commands to various executive mechanisms engine, including injector electromagnets.

The amount of gasoline supply is regulated according to numerous parameters: load, engine temperature, composition exhaust gases and so on. The moment of injection is set by sensors: crankshaft position (DPKV), camshaft position (Hall sensor), throttle valve (TPDZ) and is adjusted in accordance with driving conditions.

Differences between the two types of engines

What is the difference between an injection engine and a carburetor? Two types gasoline engines internal combustion(ICE) differ from each other both in the method of nutrition and the composition of the incoming components. Injector and represent "two big differences", as they said in Odessa.

The main thing that characterizes each system is the mixture formation technology and, accordingly, technical solution. The table shows the most important fundamental and design differences.

Note: With single injection, one common nozzle is installed on the intake manifold instead of the carburetor, that is, it performs its function. However, this solution was intermediate, and is now practically not used.

Comparison of two systems

forced injection

• The injector, unlike the carburetor, provides an optimal composition working mixture depending on the operating mode of the engine, so it copes better with its function.
• In terms of dynamic qualities, the injection engine is superior to the carburetor. Eg, injection Niva VAZ-2121 is much faster than its carburetor counterpart.
• The reliability of the injection system is higher. The disadvantage of carburetors is the large number of jets prone to clogging. In addition, they are sensitive to temperature conditions. In summer, they suffer from increased evaporation of fuel from the float chamber, in winter - from the formation and freezing of condensate.
• The injection engine starts up steadily even at significant negative temperatures due to e-governance. Experienced drivers remember how hard it was to start a carburetor engine, despite the notorious "suction".
• Carburetor engines do not meet modern environmental requirements. Electronic system, which controls the injector, controls the content harmful emissions and adjusts the composition of the feed mixture.
• Since a lean mixture is supplied to the cylinders during normal operation of the injection engine, fuel consumption is reduced, so the injector is more economical than the carburetor.
• Due to the fact that the composition and quantity of the supplied mixture is electronically regulated, the power of the injection units is increased. The increase is up to 10%.

Carburetor

• Lower device cost. True, if we compare the prices of two new cars with different systems fuel supply, they will differ slightly.
• There is no carbon deposits in the carburetor. Injector nozzles are more demanding on fuel, because they work in difficult conditions (heat especially for direct injection). It is advisable to avoid doubtful gas stations.
• Much easier to maintain, so carbureted cars are still popular in the outback, where it is far from a repair service, and in the event of a breakdown, the driver is forced to fix the problem with his own hands.

Advantages injector injection undeniable: improved dynamics, immunity to outdoor temperature, less damage to the environment, fuel efficiency while increasing the power output.

Due to the above advantages, the injector on gasoline internal combustion engines received wide distribution. Everything today cars equipped with fuel injection system. Carburetor engines survived only on older cars, with the exception of some racing sports cars.

It seems to me that this topic has long been “hackneyed” and, with the development of new environmental standards, has long been removed from the agenda. AND THERE IS NO! Many write - what is really better carburetor or injector? And "newbies" in cars also ask this question - what's the difference in them? For me, everything is already obvious (I closed this question a long time ago), but if there is such an interest, then I will write an article and shoot a video, there will be a vote below. So read, watch, it will be interesting ...

My driving experience is almost 20 years. During this time, I had a lot of ride on the carburetor (there were several VAZs, such as 2101, 2103, 2105, etc.), and I already had a lot of experience on injector modifications of cars (not only ours, but also imported ones). Therefore, I have a real opportunity to evaluate one and the other unit, although I think this is not correct, it's like comparing tube TV and modern LCD panel.

What are both systems responsible for?

This item is for beginners - but what are both these systems really responsible for? Friends, everything is very simple. In fact, they are needed to “power” our motors, namely to create an air-fuel mixture that burns in our engine cylinders .

The only difference they have is that one system is mechanical (virtually no electronics), but the second, on the contrary, is electronic (sensors, electronic pumps, etc. are responsible for everything)

The mechanical system is also a carburetor.

Electronic - it's an injector.

Well, now in more detail.

Was invented first, its exaggerated modifications were still at the dawn of internal combustion engines, so it can be called a grandfather modern systems engine power supply.

Device in the power system carburetor engines internal combustion, designed for mixing (carburetion, from French - carburation) gasoline and air, creating a combustible mixture and regulating its consumption.

What such a system consisted of (for example, I will take the VAZ 2101):

• Tank (for fuel storage)
• Float and together with it a tube for pumping gasoline. The float monitored the fuel level and showed it on the instrument panel
• Fuel line. Usually these are petrol-resistant hoses and tubes (copper, aluminum)
• Fuel pump (diaphragm type). He pumped with a pressure of 20 - 30 kPa (about 0.3 atmospheres). Usually located in engine compartment, and was attached to the engine. Why? Yes, simply because it was driven mechanically - by a drive eccentric oil pump and the ignition distributor through the pusher. If you exaggerate, there is a special “lever” on the pump inside, on which this eccentric pressed and fuel was pumped due to the vibration of the membrane. By the way, there was also a lever for manual pumping on the outside of the case, for example - the fuel ran out, a new one was filled in, and you had to manually pump it in order to start the car and not waste the battery charge.
• Carburetor. From the pump came a hose with fuel, which was suitable for the main assembly. It was the carburetor that mixed the fuel on one side and captured air on the other. By the way, there was usually a round jar on top in which there was an air filter through which air passed and entered inside for mixing.
• Intake manifold. Already through him came ready fuel-air mixture into the engine cylinders.

The system by modern standards is VERY SIMPLE and not whimsical. In fact, there was nothing to break, but inside the carburetor there were several jets, a needle, a float, a throttle valve (flaps), which could affect the performance of this unit. It should be noted that the dampers were opened by pressing the gas pedal, and the drive was mechanical (ordinary cable).

PROS :

• Simple construction. Indeed, you can make out in any forest
• Cheap and easy repair. It seems to me that almost any motorist picked in his garage
• Cheap parts
• Low requirements for fuel quality (worked on AI-76)
• Simplified diagnostics. Often you do not need to use different stands
• No a large number electronic sensors needed for work

MINUSES :

• Low stability. Once every 2-3 months it was necessary to adjust
• It was hard to get it right.
• Dependence on temperature changes (in winter it could freeze, condensation could form, which led to sticking of the float or needle. In summer it could overheat)
• More fuel consumption than the opponent
• Big release harmful substances(such as SO). One of the reasons for the ban, meets EURO2 standards
• It is difficult to spin the engine and bring it to full power
• Pouring candles. If it doesn’t start once or twice, it can fill the candles with fuel, they will not effectively spark, do not start the engine. It is necessary to unscrew the candles and dry them - heat them.
• Smell in the cabin. No matter how I adjusted the carburetor, there was a constant smell in the cabin, either gasoline, or the wrong exhaust

No matter how they seem carburetor systems simple and easy to maintain, there was more trouble with them. For a year of operation, you would definitely regulate it at least 3-4 times, and maybe more. in winter in very coldy once they didn’t start the engine, the chance that they would start at all (without calcining the candles) decreased significantly. It was necessary to play with suction after launch ( modern drivers now they don't know what it is).

And to be honest, I DON'T REGRET THAT CARBURETTORS ARE GONE OF THE PAST AT ALL. They have fulfilled their task, and in fact have reached their limit.

Electronic air-fuel mixture supply system. It appeared much later and has now been modernized several times. All mechanical parts have been replaced with electronic ones, there is also a control system (ECU), which is based on various sensors

Injector from the word INGECTION, translation - injection or fuel injection

There are currently three main types of systems:

• MONOVPRYSK . The most ancient type, replaced the carburetor, in fact it is the same, only with an electronic component. Sprays gasoline directly into the entire intake manifold. It is no longer installed on cars, because it is not included in environmental standards
• DISTRIBUTION injection . Here, each pipe has its own injector, which supplies fuel only to its cylinder
• DIRECT injection . Here the nozzles are installed in the engine block, in the combustion chamber itself.

What does this system consist of:

• Tank. Also for gasoline storage
• Fuel pump. It is usually immersed directly into the fuel. It does not need to be mounted on the engine, because it is electric, it does not need drives. It should be noted that it creates a pressure of about 3 atmospheres.
• Fuel line. Also includes hoses and pipes.
• Fuel rail. A tube or hoses from the highway are like it, and the injectors themselves are often screwed in.
• Injector. Fuel injection system in a certain proportion. In systems with port injection are located on the intake manifold.
• Throttle assembly (combined with air filter). It supplies air for the mixture, it has a damper that regulates the desired amount of air. And you, in turn, regulate everything by pressing the gas pedal (often electronic)

Of course, to make the injection version work, you need a large number of sensors that control - the supply of fuel, air, vehicle speed, crankshaft rotation, throttle position, coolant temperature, detonation.

It may seem that the system is complex, but it is not. One of the main sensors is DPKV (crankshaft position sensor). According to its testimony, the cylinder, the time of fuel supply and spark are determined.

This information goes to the ECU and it is this control unit that instructs the pump to start building up fuel pressure in the line after the ramp. That is, it is located behind the injector. Further air goes from throttle assembly and when the injector is reached, it opens and the air is mixed with gasoline in the right proportion. After this mixture is sucked in by the engine cylinder and burns inside.

The injection option has many advantages

POSITIVE POINTS:

• Stable engine operation
• Big power
• Durability. No need to adjust every 2-3 months
• Less fuel consumption, up to 30%
• Does not depend on temperature difference. Works the same in summer and winter
• Up to 75% less harmful emissions
• No fuel spills on start up. You can spin as long as the battery allows
• No stink of gasoline in the cabin. Because it is a very precise dosage

NEGATIVE POINTS :

As you know, in modern cars, two devices are used to create a fuel mixture: an injector and a carburetor. At first glance, the principle of operation of both units is very similar, but why is the number of carburetor engines inexorably decreasing, while the number of injection engines is growing? The main reason for this phenomenon is the requirements that European standards impose on the composition of exhaust gases. Carburettors are finding it increasingly difficult to prepare a mixture that is safe for environment, therefore, cars equipped with historically the first fuel mixers are less and less on the market. But the ability to comply with environmental regulations is not the only difference between the systems. To understand the difference between an injector and a carburetor and which is better for the driver, consider the principle of operation of both devices.

The principle of operation of the injection and carburetor engine

The combustion chamber of carburetor (top) and injection (bottom) type engines

The word "injector" is derived from the English "Inject", that is, injection. This means that the injector is an injector regulated by an electronic control unit. The operation of the device resembles the system used in diesel engines: fuel is injected directly into the combustion chamber by means of a nozzle. Due to the possibility of precise adjustment of the composition of the working mixture, injectors are used in the production of most makes and models of modern cars.

The name "carburetor" appeared at the dawn of the automotive industry. It is derived from the French word "Carburation" - mixing. The device prepares the fuel mixture inside its housing, distributing the proportions of fuel and air in accordance with the composition and octane rating gasoline. The resulting mixture is simply sucked into the intake manifold due to the created pressure difference.

The carburetor is not equipped with sensors capable of analyzing the number of engine revolutions, so the same “portion” of the fuel mixture enters the combustion chamber, which is Idling, What's on top speed movement. This leads to irrational consumption of gasoline and the entry of a large amount of environmentally harmful substances into the exhaust system.

The injector is devoid of such a drawback, because the electronic unit constantly monitors the engine speed and regulates gasoline injection. Due to the high precision, the fuel is consumed economically and the minimum amount of harmful substances is emitted into the exhaust system. This allows you to pass the test for compliance with European standards for the content of toxins.

Pros and cons of carbureted engines

The device of the simplest carburetor

The main advantage of the carburetor is ease of maintenance. To adjust the composition of the working mixture, just read a simple manual. At the same time, a carburetor, correctly adjusted once, is able to work without failures for a long time. To repair the fuel mixer, expensive tools and devices are not needed, a few screwdrivers and wrenches are enough. All work can be done right in the garage, without contacting a car service. Here is a significant difference between the injector and the carburetor, because problems with the injector are not so easy to fix.

A carbureted car can be refueled with low quality indicators, because it is almost insensitive to the presence of impurities. The only consequence of using fuel with poor quality- clogged jets, but they can be easily cleaned or blown out.

An important advantage of carburetor units is the increased throttle response of the engine. The mode of operation of the motor changes quickly, without jerks. On carbureted car easier to overcome steep slopes and drive off-road.

The disadvantages of the carburetor include:

• increased formation of harmful substances in exhaust gases;
• high sensitivity to temperature changes;
• irrational consumption of gasoline.

The carburetor is reliable and easy to maintain, but its shortcomings are too significant and level the list of advantages.

Pros and cons of injection engines

The power of the injection engine can increase by 10% compared to that of the carburetor. The special way of fuel injection, the exact setting of the ignition angle, the design of the intake manifold - all these factors contribute to an increase in power.

In addition, injection systems are more economical than carburetor ones. Electronics regulates the amount of gasoline depending on engine speed. Thanks to precision work control unit, in traffic fumes fewer toxic substances enter, because the fuel burns without residue.

Injected engine is easier to start in winter time, because it does not need to be warmed up, the system works automatically and does not depend on the ambient temperature. Majority injection motors very reliable. There is no distributor in their design, which often breaks down on carbureted cars.

The disadvantages of the injector include:

• complexity of diagnostics and repair;
• high sensitivity to the quality of gasoline;
• high cost of spare parts.

Although cars with injection engines and dominate the market, but even they are not without flaws.

The difference between an injector and a carburetor

To sum up and formulate a list of differences between the two fuel systems:

• The injector, unlike the carburetor, is sensitive to fuel quality.
• The injector breaks less often than the carburetor, but its repair is more expensive.
• The injector is more economical than the carburetor.
• The injector is more environmentally friendly than the carburetor.
• The injector is not sensitive to temperature differences.
• The injector injects fuel into the combustion chamber and fuel mixture from the carburetor is sucked into the cylinder.

The difference between an injector and a carburetor is obvious. Fuel economy and compliance environmental regulations forces car manufacturers to use fuel-injected engines.