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66We is probably known that there are two types of gasoline engines - this is an injector and carburetor. But there is one more, which comes across not often, it is a monofry, the principle of its work is similar to both the injector and carburetor. MONTROSK is one of the embodiments of the fuel internal combustion engine. Its characteristic feature is the supply of fuel into the chamber common to all cylinders. It mixes the air-fuel mixture and is sent to that cylinder that is in the open state.

At the moment of the release of cars with one fuel nozzle is not conducted, but you can meet relative many old production machines working on such a principle.

Monovprysk was designed and commissioned in the process of carburetors' carburers. First invented the system with one nozzle, and later - distributed injection for each cylinder used now.

The design of the device includes directly nozzle running under pressure, air temperature sensor, fuel pressure regulator and return fuel line. According to the modern framework, the fuel pressure for the operation of the monofrash is rather low. An electronic controller is applied to control the opening and closing of the nozzle. The solenoid valve is responsible for dosing the fuel, and the air is throttle.

What is monovplosk, principle of work, differences from the injector
What is monovplosk, principle of work, differences from the injector

The pressure regulator in the monovplésk performs the task of stabilizing the pressure and prevent the control of air stops after turning off the engine (it facilitates the engine start).

The key difference between the monofrying from the distributed injector lies in the fact that one nozzle is used for all cylinders. The distributed injector injectors stand on each cylinder separately. Due to this, when using it, the fuel is consumed more economical. In addition, the use of a shared nozzle reduces the operation of the engine.

The case is next. If the nozzle begins to work incorrectly, a bad fuel and air mixture is created, the engine operation deteriorates, an additional nagar appears, moisture is inserted inside the combustion chambers. Thus, the deterioration of the nozzle state affects the entire cylinder block. In the case of a distributed fuel supply of one of the injectors, only one cylinder is affected at work.

Compared to carburetor systems, the monofrying allows you to quickly start the engine due to a special valve that runs all the necessary processes.

Injector fuel supply systems (including monofry) do not "suffer" with diseases typical for carburetors, as frequent clogging, driving the jets, sticking the needle, the need to adjust in accordance with the mileage.

What is monovplosk, principle of work, differences from the injector
What is monovplosk, principle of work, differences from the injector

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How does the monofrying work and how to fix it

The transitional stage between the carburetor and the modern injector was monofry. Until now, many cars are driving on the roads, having such a power system under the hood, despite the fact that the release of machines with one nozzle is completed. A distributed injection came to a change of one-point.

Device Monovprovisa

Revolutionary in the appearance of a new fuel system was a refusal to use the carburetor and installing the nozzle. The idea itself was not new, but the implementation of Monovpromsk brought the engineers to the creation of modern injector systems. The main distinguishing feature of the technical solution under consideration was the use of a single nozzle spraying fuel. Otherwise, the principle of operation of the monofry is similar to the current fuel systems.

Construction structure

Construction structure

A single-point injection system worked with fuel located under modern pressure standards. The opening and closing signal arrived from the electronic control unit. Inside the nozzle is the electromagnetic valve, which is responsible for dosing gasoline. For adjusting the amount of air supplied, the throttle valve of the monofry is corresponds.

The advantages of the system

The advantages of the monofright in front of the carburetor:

  • Simplified engine launch;
  • Fuel consumption decreases while maintaining a ride style;
  • The monofrying device eliminated the need to manually adjust the mixture supplied to the engine;
  • Reducing the number of harmful substances in the exhaust as a result of a more optimal ratio of gasoline and air supplied to the combustion chamber;
  • Control with the ECU.

One of the main advantages of cars with Monovpromsky was the absence of fuel consumption dependence on the level of qualification and experience of the carburetor. The classic system with incorrect setting of quality screws and quantity, could burn gasoline several times more than the norm, due to the low professionalism of the person who made the configuration. In Monompproysk, during normal operation, the intervention is not provided. Incorrect configuration of a single-point injection system while troubleshooting is not as critical affects fuel consumption.

Disadvantages of using one nozzle

The lack of serial production of MonovPrysk to date is connected with a number of shortcomings, which did not allow him to leave him the winner in the competitive struggle. The main minuses of the system under consideration are:

  • high cost of components, especially against the background of the carburetor system;
  • low maintainability associated with the design features of nodes and with a small number of specialists capable of performing the repair of monofry;
  • turns are very floating at any deviations as fuel;
  • the inability to start a car with a discharged battery, since the mono-control system is controlled by an electronic controller;
  • Diagnostics, repair and configuration of monofrying are very difficult in garage conditions, as they require special equipment.

If the car does not start with the carburetor power supply system, the bus owner will check the fuel does not overflow and can start the motor. In the case of a monofreement, only units know how to adjust the fuel feed, so check the performance of the system for most becomes an incomprehensible task. The complication of the electrical circuit made it impossible to call it by a multimeter, now it is possible to identify a malfunction only by connecting the diagnostic scanner.

Features of the principle of action of monofry

The principle of preparation of the fuel-air mixture is simple. The nozzle, controlled by the ECU, doses the required amount of fuel, and the throttle supplies the necessary air. The combustible combustion mixture is distributed using special sensors.

Podcast space

Podcast space

Gasoline is supplied to the combustion chamber between the motor housing and the throttle valve. To ensure good performance characteristics, the ignition and monofrysk work simply. This became possible due to the management of all processes with a single controller.

Factors influence the mode of operation of the fuel system:

  • crankshaft rotation frequency;
  • The ratio of the components of the belligent mixture;
  • the position of the throttle;
  • Pressure gasoline in the fuel line.

The control of the monofry has a plurality of negative feedbacks coming from sensors. All information obtained by the ECU serves to reduce emissions of harmful substances and improve the dynamic indicators of the car. On a technically, a serviceable machine with a mono-depth exhaust fully complies with the modern requirements of ecology.

Faults of the injection system

To the main faults most common on cars with mono-site relating:

  • nozzle problems, clogging or wear;
  • Wrong operation of electronics.
Finding a fault

Finding a fault

The causes that cause malfunction can be:

  • Natural wear of the elements of the fuel system;
  • The factory defect that may appear both immediately and after a certain period of time;
  • unfavorable operating conditions, such as refueling by poor-quality gasoline, will at best cause clogging of the nozzle;
  • failure regulator;
  • Sporty driving style, causing critical load on the engine and injection in particular.

To diagnose, you need to connect a laptop with a special software installed. The car with brains is good because if there is a suitable software for reading the information, a tablet with a smartphone is suitable. The resulting characteristic of the engine operation allows you to narrow the circle of troubleshooting.

Many car owners in the absence of the ability to use a personal computer, operate according to the principle of "I will check the external inspection". It is possible to produce any manipulations with the monofraight only with confidence in the performance of all other auto systems. Some breakdowns, for example, if the sensors have oxidized contacts, can be defined with visual inspection. Oxidation and pollution clean without excessive effort.

After the motorist cleaned the nozzle and the sensor contacts are required to perform a trial launch. It should not interfere with the work of the ECU. If it is impossible to eliminate the problem, it is advisable to contact professionals from the service center.

Tips for setting

Configuration of monofrying is most often required when the motor turnover is floating. It can be observed as idling and while driving. The most significant noticeably in the engine operation when switching gear. All of these symptoms say that the adjustment of the monofrash will be required soon.

Adjustment

Adjustment

Description of the sequence of actions:

  1. Multimeter Check the resistance of the temperature sensor of the absorbable air and verify with tabular values; Integrated air temperature sensor

    Integrated air temperature sensor

  2. Check whether the sensor scheme is operational;
  3. Control the pressure of the nozzles;
  4. Expose idle gap;
  5. Check the accelerator and terminating regulator;
  6. Configure the position of the throttle.

Upon completion of the adjustment, you need to start a car. The trial trip should show the absence of floating revolutions. Otherwise, you must additionally check the associated systems.

Maintaining monofrying in good condition is possible only with high-quality diagnostics. It is necessary to pay attention to any changes in the behavior of the car. The earlier a malfunction is noticed, the cheaper it will be eliminated. It is necessary to regularly pay attention to the injection.

If you have any questions - leave them in the comments under the article. We or our visitors will gladly respond to them

Modern cars on the system of the system that provides fuel in the engine. We are divided into carburetor and injection. But there is also a third version of the fuel system - MonovPrysk. At one time, he became an intermediate generation between the first two, so there were deficiencies and advantages in work. What is a monofrash, how it works, what is good - consider in this article.

How the monovprosk is arranged

Monovpromsk is one of the embodiments of the injector fuel supply to the internal combustion engine. Its characteristic feature is the supply of fuel into the chamber common to all cylinders. It mixes the air-fuel mixture and is sent to that cylinder that is in the open state.

At the moment of the release of cars with one fuel nozzle is not conducted, but you can meet relative many old production machines working on such a principle.

Device Monovprovisa

Device monovplisk. 1 - electric fuel pump; 2 - fuel filter; 3A - choke potentiometer; 3b - pressure regulator; 3C - nozzle; 3D - air temperature sensor; 3E - an activator idling throttle valve; 4 - engine temperature sensor; 5 - lambda probe; 6 - Electronic control unit (ECU)

Monovprysk was designed and commissioned in the process of carburetors' carburers. First invented the system with one nozzle, and later - distributed injection for each cylinder used now.

The design of the device includes directly nozzle running under pressure, air temperature sensor, fuel pressure regulator and return fuel line. According to the modern framework, the fuel pressure for the operation of the monofrash is rather low. An electronic controller is applied to control the opening and closing of the nozzle. The solenoid valve is responsible for dosing the fuel, and the air is throttle.

The pressure regulator in the monovplésk performs the task of stabilizing the pressure and prevent the control of air stops after turning off the engine (it facilitates the engine start).

How monovprysk works

  1. In the functional chain of the monofry, it is located in front of the DVT cylinders. Through its nozzle, fuel enters the overall air chamber.
  2. The prepared fuel and air mixture is sent to the first cylinder opened.
  3. The volume of air and fuel transmitted inside the cylinders is determined by various sensors included in the monofry.
  4. Excess fuel returns from the backway system.

In the operating cycle, the nozzle made in the form of an electromagnetic valve provides a pulsed combustible grain. Its construction, as a rule, includes a spray nozzle, shut-off valve, a return spring and a solenoid. The throttle, regulating air flow, is controlled via an electric or mechanical drive.

What monovprysk differs from the injector and carburetor

Monovplus on Opel Astra FThe key difference between the monofrying from the distributed injector lies in the fact that one nozzle is used for all cylinders. The distributed injector injectors stand on each cylinder separately. Due to this, when using it, the fuel is consumed more economical. In addition, the use of a shared nozzle reduces the operation of the engine.

The case is next. If the nozzle begins to work incorrectly, a bad fuel and air mixture is created, the engine operation deteriorates, an additional nagar appears, moisture is inserted inside the combustion chambers. Thus, the deterioration of the nozzle state affects the entire cylinder block. In the case of a distributed fuel supply of one of the injectors, only one cylinder is affected at work.

Compared to carburetor systems, the monofrying allows you to quickly start the engine due to a special valve that runs all the necessary processes.

Injector fuel supply systems (including monofry) do not "suffer" with diseases typical for carburetors, as frequent clogging, driving the jets, sticking the needle, the need to adjust in accordance with the mileage.

For manual drivers who do not understand the features of the settings of carburetors and the effect of combustible quality to work, the injector system is more convenient, because long saves the driving conditions given during installation. The carburetor system, in turn, over time loses the settings, so begins to "burn" more than gasoline.

Pros and cons of Monovprosiska

The main advantages of using a monofry to supply a fuel to the engine are:

  • Simple and quick start of the motor (compared to carburetor options).
  • Reducing fuel consumption with an increase in engine efficiency, as when the machine is moving, so when starting and operating.
  • No need to adjust the fuel supply system and create a fuel and air mixture manually. Everything is regulated automatically in accordance with the data of the temperature sensors, oxygen, and the like.
  • Monovprysk, like other injection systems, reduced carbon dioxide emissions into the atmosphere.
  • In contrast to the injector, the monofrysk has a simpler design.

At the time of its introduction, Monovpromsk became a system that allowed to "plant" behind the wheel of an even greater number of ordinary people far from understanding the internal processes of the car. Now the composition of the fuel mixture was automatically regulated, reduced the cost of fuel, improved efficiency and reduced the engine wear. Earlier, in the era of carburetor engines, fuel consumption depended on the settings that it was necessary to manually set and adjust depending on the style of driving, road conditions, engine behavior and other factors.

Overview and mono jetronic mono-section device. Configure and diagnostics Mono-Jetronic mono-jetronic

Monovprysk - This is an injector fuel supply system into the engine, which is used in not very modern cars. This is a transitional fuel supply system that has been introduced into widespread use instead of a carburetor. A feature of the fuel injection in this system is that this uses one nozzle, which is located on the site of the carburetor. This nozzle spares fuel to all cylinders. Unfortunately because of new environmental standards, today, this method of supplying fuel for a gasoline engine is not in demand, a distributed injection has come to change.

Working mechanism MONOVPRYA

Operation and device nozzle

The nozzle is over the throttle. The fuel is fed by a jet, which falls specifically into the sickle hole located between the housing and the throttle. In this place there is a mixing formation, which can be due to a large pressure difference. This mechanism of work eliminates the precipitation of fuel on the walls of the intake path. The nozzle works at extra pressure into one bar. Spraying the fuel makes a consistency of a homogeneous even with full loads. The moment of fuel injection through the nozzle is synchronized with ignition pulses.

Manage Monovpromsky

The operation of the mono-section system is depending on several variables. The main thing includes: the rotational speed of the crankshaft of the motor, also the ratio of air and its mass in the stream, the position of the opening angle of the throttle valve and the absolute value of the pressure in the pipeline. Passing the ratio of the opening angle of the throttle valve and the rotational speed of the crankshaft in the mono-jetronic mono-jetronic system, it is possible to achieve a situation when the content of poisonous substances in the exhaust gases will even meet the most serious standards and requirements. The system consumes a negotiable bond with a lambda probe (oxygen sensor) and a three-component catalytic neutralizer. Lambda Probe gives a signal to a self-test system that uses it to compensate for the configurations that have occurred in the operation of the motor. In addition, it is fundamentally to ensure stability in the operation of the motor throughout the service life.

Differences between monofry and carburetor

  1. Monovpromsk - the method of supplying the mixture by means of one nozzle into all cylinders. It is better than the carburetor.
  2. By means of a special valve providing control of all processes, you can easily start the engine, which you can not say about carburetor systems. This structure makes this option preferable.
  3. The ability to reduce fuel consumption: carburetor elements are designed to make it higher due to incorrect settings, using the method under consideration it is possible to reduce this indicator. For this parameter, the scheme under consideration is better than others.
  4. To carry out the engine operation, it is not necessary to manually set up the system. If in the carburetor scheme or in the area of ​​a distributed injector, the same is the need for specialists.
  5. More advanced performance indicators associated with the highest accuracy of the functioning of the scheme - pressure, voltage, etc. As a result, the optimal dynamic characteristics of the engine and other mechanisms are achieved. The main thing is to check the pressure in a timely manner and work on the normalization of this indicator. It is also important to compare stress.

This system provides high quality engine performance and creates optimal conditions for its functioning - normal pressure and other. Which of the types of devices is better - each user decides itself.

• Maintenance and diagnostics.

To determine the problems in the work of the monofree, it is necessary to use special equipment for diagnostics, as well as repair. Without accessing the car service - it is not necessary. MoneTrash in essence, it is an electronic-controlled, single-point low-pressure injection system, which is used in gasoline engines. The feature of the monofree, as mentioned earlier, is a nozzle that controls the solenoid valve. To dosing the air when creating a fuel mixture, a throttle valve is used.

In the inlet pipeline, the most distribution of fuel on the engine cylinders occurs, this also contributes to special sensors that control all engine characteristics. The nozzle is located above the throttle. The fuel stream is directed directly into the hole between the housing and the throttle itself. The fuel injection via the nozzle is synchronized with the ignition pulses. The time of starting the cold engine, as well as immediately after start-up - the fuel injection time is increased, specifically to enrich the fuel mixture. With an immentable engine - the position of the throttle is installed so that a more fuel mixture falls into the engine to maintain the crankshaft revolutions. The entire fuel injection process is controlled by an electronic control unit.

According to the signals of various sensors (the throttle position sensor, the lamb probe sensor, the temperature sensor) is calculated the required amount of fuel and this data is transmitted to the nozzle. The air, in turn, falls through the air filter in the intake manifold, fuel and air are mixed with each other, creating a fuel mixture that enters the engine cylinders. Equipment in the operation of monofry. Car owner, always wait for hidden troubles that are a little later poured economic spending. Typically, owners of used cars fall on money. Multifunctions of monofrying can act as a banal nozzle clogging and serious breakdowns in electronics.

The advantages of the mono-section system:

  • Simplified engine start. With the help of an electromagnetic valve that controls all the operation processes of the monovplisk, it is possible to easily start the engine, compared to carburetor engines, because it takes part of the start-up processes.
  • Reducing fuel consumption. Carburetor cars are subject to increased fuel consumption due to improperly setting the carburetor, using the use of the mono-section system, you can save fuel both when the engine is started and during the vehicle movement.
  • No manual system setup is required. Again, if in the carburetor fuel supply system, the wizard intervention is required and the painstaking setting, the monofrying system is configured by data that transmit oxygen sensors.
  • Reducing carbon dioxide emissions.
  • Improved indicators. Due to the high accuracy of the entire system of the monovospury, you can achieve the improved dynamic characteristics of the car.

As with any technique, the monofrying system has its drawbacks:

  • The big cost of repair and components. As a rule, no one counts on breakdown, but in one way or another it will happen and at this moment you need to be prepared for this procedure. Repair or replace one of the functional nodes of the system will cost a good penny.
  • Low suitability of most nodes to repair. Almost always repair is cheaper than a complete replacement, so the possibility of repair is very important for expensive elements. The monofrying system does not boast of this, as a rule, the breakdown leads to a complete or partial replacement of functioning nodes.
  • The need for high-quality fuel. In our country, it is practically impossible to purchase high-quality fuel in our country, because most of the filling stations are simply used to purchase and implement low-quality fuels.
  • Power Dependency. For the operation of the mono-section system, power is necessary. In this case, the carburetor system wins, because to start the engine, it is enough to scroll the engine and file a spark, the fuel is served mechanically. Using the monovosprysk - you need to always have a good battery charge, otherwise you risk not a car.
  • Service and diagnostics. To determine the problems in the work of the monofree, it is necessary to use special equipment for diagnostics, as well as repair. Without contacting the car service - can not do.

Monovpromsk in essence, it is an electronic-controlled, single-point low-pressure injection system (injector), which is used in gasoline engines. The feature of the monofree, as mentioned earlier, is a nozzle that controls the solenoid valve. To dosing the air when creating a fuel mixture, a throttle valve is used. In the inlet pipeline, the most distribution of fuel on the engine cylinders occurs, this also contributes to special sensors that control all engine characteristics. The nozzle is located above the throttle. The fuel stream is directed directly into the hole between the housing and the throttle itself. The fuel injection through the nozzle is synchronized with ignition pulses.

During the start of the cold engine, as well as immediately after the start - the fuel injection time is increased, specifically for enriching the fuel mixture. With an immentable engine - the position of the throttle is installed so that a more fuel mixture falls into the engine to maintain the crankshaft revolutions. The entire fuel injection process is controlled by an electronic control unit. According to the signals of various sensors (the throttle position sensor, the lamb probe sensor, the temperature sensor) is calculated the required amount of fuel and this data is transmitted to the nozzle. The air in turn falls through the air filter in the intake manifold, fuel and air are mixed with each other, creating a fuel mixture that enters the engine cylinders.

Malfunctions in the work of monofry. Car owner, always wait for hidden troubles that are a little later poured economic spending. Typically, owners of used cars fall on money. Multifunctions of monofrying can act as a banal nozzle clogging and serious breakdowns in electronics.

Various factors lead to malfunctions in the fuel supply system:

  • Service life of key nodes and basic system elements.
  • Factory marriage elements.
  • Incorrect operating conditions.
  • External impacts on functional elements that reduce the service life.

To determine the malfunction, you should use diagnostics, while diagnostics can be carried out both on the service and your own efforts. Currently, there are a large number of software and technical devices that will help carry out proper diagnosis in garage conditions. Usually for such diagnostics requires a laptop, a tablet or a mobile phone, a cable for connecting, as well as special software. All inconsistencies standards are stored in the electronic control unit, therefore the purpose of the diagnostic program is to read this data and the proper display of the motorist. Many programs are able to drop errors thus after troubleshooting, its trace can be lost in the control unit.

Sometimes, it may be necessary to diagnose a malfunction without the help of additional devices, and with the help of external (primary) features. The following features include:

  • Symptoms when starting the engine. Difficult to start the engine, starting the engine is not possible, and also if the engine stalls immediately after launch - this is the initial reasons why further analysis should be carried out.
  • Idling. Symptoms at this stage are the unstable operation of the engine at idle, detonation, floating momentum.
  • In move. Improving the fuel consumption, deterioration of the dynamics of overclocking and interruption of the engine during the acceleration of the car - talk about a malfunction in the fuel supply system.

I would like to note that on external features you can determine the fault exactly, only if the rest of the system nodes is properly operational. When repairing or replacing functional nodes, it is recommended to resort for help from specialists, because any not professional intervention can entail very large consequences.

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