Injector 2107: features

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2020-03-11 04:00:19

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In this article we will look at the car VAZ-2107 (injector). Carbureted models will simply escape, as they are already outdated morally. As for the injector (with forced injection of the fuel mixture), they are today all more common. Modern auto industry has completely abandoned carbureted systems. What are the elements in the injection system and missing in the carburetor? In this article we will try to find out.

How it works fuel injection system injection?

The Essence of the process lies in the fact that gasoline under pressure is supplied to the fuel rail, which is blended with purified air in a ratio of 14 to 1. The mixture is always under pressure, so when you open the valve it enters the combustion chamber freely. Here, ignition occurs and the piston performs a working stroke. While rotating the crankshaft, and the car is driven.

VAZ 2107 injector under the hood

In normal operation all the nodes meets a bunch of sensors that measure temperature, pressure, quantity of air and gasoline, etc. All signals are fed to the microcontroller control unit. It has a special algorithm that regulates the work of all the major sites and mechanisms. Here is the engine VAZ-2107 (injector) that we discuss in our article. And to be precise – about its components.

Crankshaft Sensor

This is one of the important reader is available on any fuel injected motor, including on "sevens." With it reads the number of revolutions of the crankshaft. If you look closely to the design of the whole site, we can see that the sensor is installed opposite the teeth of the crankshaft pulley. And you can see that the distance between teeth the same way, but not everywhere. There is a gap that is missing two teeth – this segment is “sets”. The sensor detects it and begins to consider a new turn of the pulley.

How does crankshaft sensor

With the help of this device is based on the number of revs. Based on the data received from the sensor, the electronic control unit decides to increase or decrease the amount of air or petrol in the mix. But that's not all, the work is influenced by other devices, which we will discuss further.

the installation location of the crankshaft sensor 2107

The mass air flow Sensor

This is a device which allows to fix the amount of air that enters the fuel rail. Based on the design is the thread of platinum, which in some cases is polluted. To extend the life of this device, it is necessary to change the air filter. If the degree of contamination is small, it is allowed to clean the threads, use for cleaning injectors.

The Essence of the work lies in the fact that the filament is heated to a certain temperature. With the passage of air through the tube cools the filaments by a few degrees. Logic installed in the control unit, calculates the amount of air that flows into the ramp. This is the easiest way to calculate the air entering the ramp for the formation of the mixture.

Speed Sensor

With the help of this device measured the speed of the car. The data serves not only the electronic control unit, but also on the speedometer to inform the driver about the current speed. The device is placed directly on top of the transmission.

Camshaft Sensor

Is Set, as the name implies, on the camshaft. This is one of the devices, which turns out to set the correct ignition. The VAZ-2107 (injector) no distributor, spark is generated by means of the logical elements based on data received from readers.

Ignition System

For gasoline engines had distributors ignition mechanical type (both non-contact and contact). But they all have one major drawback – friction to a greater or lesser extent, is still present, so the reliability of the whole mechanism is low.

ignition Module 2107

As for fuel injected motors, they read all the parameters via sensors. The signals are sent to an electronic control unit, are then processed. Logic allows you to adjust the ignition timing andthe time of fuel injection into the combustion chamber. Candles and buenaposada used exactly the same as on gasoline engines.

It is Worth noting that modern cars are equipped with ignition system where each candle is installed a separate coil, it connects the low voltage wire. Such a simple way was able to avoid having high voltage under the hood.

Sensor door position

Throttle – is the node that allows you to change the amount of air supplied to the fuel rail. In fact, when you press on the accelerator pedal, you increase the amount of air, not gasoline. Already based on how much oxygen entered the ramp, there will be an increase or decrease in the amount of gasoline. Only you can find two types of structures of sensors:

  1. Resistive.
  2. Contact.

The First principle of action is similar to the volume controls in household appliances. They have one big drawback – there are friction surfaces, so often the device fails. Elaboration is present, as a rule, at the beginning of the track. In case of breakage of the position sensor will be changed often idle on the VAZ-2107 (injector cannot understand in what position is the pedal because the sensor resistance is unstable).

Such shortcomings deprived of the proximity sensor (which works on the principle of the encoder). But the cost of it is much higher, so ordinary drivers rarely install them on their cars.

Fuel injectors

This is one of the main components, cleaning and replacement of the VAZ-2107 (injector) should be made in a timely manner. On the life of the injectors is also affected by the filters. In fact, atomizers – solenoid valves, which stand in the way of the movement of the fuel mixture. The electronic control unit commands the opening and closing, focusing on the sensors.

Injector VAZ 2107 on ramp

For protecting electrical circuits in the mounting block has fuses. The VAZ-2107 (injector) all the components are protected, and nozzles must be included by means of electromagnetic relays, as they have a large current consumption.

Fuel pressure Sensor

This device is needed to the fuel rail is not formed high pressure. The pump located in the tank pumps through pipelines gasoline in the fuel rail to a certain pressure. It should be enough for the injection of the mixture in the combustion chamber. The sensor is mounted directly on the ramp, and when exceeding the maximum permissible value of the pressure is released the excess through the check valve in line connected to the tank. The principle of operation is approximately the same as the top of the surge tank in the cooling system.

Lambda

This is a sensor that allows to estimate the oxygen content in the exhaust gases. It should be noted that directly to make measurement impossible, therefore it is necessary to install the sensing element inside the exhaust pipe and outside. And in order to improve sensitivity, it is necessary to heat the device to 600 degrees.

Oxygen sensor VAZ 2107

This sensor sets the ignition timing and is subject to the quality of the fuel mixture. The presence of the device due to the introduction of emission regulations.

How it works fuel injection system?

Now let's talk about how the work of injection of the fuel injection system. So from the very beginning:

  1. You turn the key on, power is supplied to the electronic control module, all sensors and actuators.
  2. After the start of rotation of the crankshaft by the starter begins to work the generator VAZ-2107 (injector).
  3. All of the sensors record a change of parameters that they measure.
  4. Electronic control unit adjusts the quality of the mixture and adjusts the ignition timing.
  5. The Mixture under pressure is fed into the combustion chamber through the open injector, it begins the process of ignition and stroke.
rail

That's it - the engine fires, all of its nodes work. When you press the accelerator you increase the amount of air, consequently, gasoline. The number of revolutions of the crankshaft will also increase.


Article in other languages:

AR: https://tostpost.com/ar/cars/21437-2107.html

BE: https://tostpost.com/be/a-tamab-l/38968-nzhektar-vaz-2107-prylada-asabl-vasc.html

DE: https://tostpost.com/de/autos/38494-vaz-2107-injektor-ger-te-und-features.html

ES: https://tostpost.com/es/coches/38260-el-inyector-vaz-2107-el-dispositivo-y-las-caracter-sticas-de.html

HI: https://tostpost.com/hi/cars/23008-2107.html

JA: https://tostpost.com/ja/cars/21020-2107.html

KK: https://tostpost.com/kk/avtomobil-der/39348-inzhektor-vaz-2107-rylymy-men-erekshel-kter.html

PL: https://tostpost.com/pl/samochody/41020-wtryskiwacz-vaz-2107-urz-dzenia-i-funkcje.html

PT: https://tostpost.com/pt/carros/40687-injector-vaz-2107-dispositivo-e-caracter-sticas.html

TR: https://tostpost.com/tr/arabalar/35859-enjekt-r-vaz-2107-cihaz-ve-zellikleri.html

UK: https://tostpost.com/uk/avtomob-l/39774-nzhektor-vaz-2107-pristr-y-osoblivost.html

ZH: https://tostpost.com/zh/cars/24439-2107.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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