2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Many car owners, stopping by the masters at the service station, hear from them that it is necessary to flush or replace the nozzles. At the same time, motorists do not know what it is. What is a nozzle in a car and what is it for?
Short description
All diesel and gasoline internal combustion engines that exist today have a fuel injection system in their design. The nozzle is an analogue of a pump that supplies a powerful, but very thin jet of fuel. It is an integral part of the injection system. Where the nozzles are located and what their principle of operation will be described later.
Types of injectors
The injector is a solenoid valve controlled by a special program in the vehicle engine control unit. It is thanks to the injector that fuel is supplied to the cylinders in doses. If they talk about an injector, then here they mean a system of controlled nozzles.
Eatseveral types of nozzles that are designed:
- for multiport fuel injection;
- central injection;
- direct injection.
The principle of operation of injectors
Fuel from the frame to each individual nozzle is supplied under the required certain pressure. Electrical impulses are sent from the control unit to the injector solenoid. It is they who use the needle valve, the purpose of which is to open and close the nozzle channel. The duration of the opening of the needle valve and the amount of fuel supplied depend on the duration of the electrical impulse. This duration is regulated by the engine control unit. In addition, different types of nozzles can create several shapes of the fuel jet, as well as change its direction. And this greatly affects the mixture formation in the engine.
Location
Many people don't know about injectors in cars. Where are these elements located? Their location depends on the type of injection:
- With central injection, one or a pair of injectors are located inside the intake manifold, near the throttle valve. So, the nozzle is a replacement for an already obsolete device - a carburetor.
- With distributed fuel injection, each cylinder has its own nozzles in the car. Where are they in this case? At the base of the inlet pipeline into which injection is carried outfuel injector.
- With direct fuel injection, they are located in the upper region of the cylinder walls. They inject fuel into the combustion chamber itself.
This is the location of the injectors in the car. Where these parts are located has become clear.
Flushing
Due to the fact that harmful impurities are present in the fuel, soot often settles on the injectors. They need to be washed. This operation involves washing out unnecessary dirt from the nozzle system. Nozzles can be washed with a special liquid. It is also called a special additive. At the same time, the nozzles themselves can not even be removed from the engine. This additive is added to the fuel, and the engine is forced to work on this mixture for a couple of thousand kilometers. Faster flushing can also be carried out without removing the nozzles from the engine. For this purpose, a special installation is used. It connects to the engine in place of the fuel pump. Solvent is supplied to the nozzles themselves. This is a special flushing fuel. The time of such a process is about fifteen minutes.
Nozzles can also be cleaned from carbon deposits using ultrasound. This method already involves removing them from the engine.
Results
Thus, it becomes clear what injectors are in a car, where they are, how they work, what they are for. Obviously, these are very important parts of the engine, without which its operation is impossible. It is necessary to monitor their serviceability, as well as wash them regularly.
Recommended:
Truck battery: what are they and how do they differ?
Do I need to say that in any weather, in any weather conditions, your car must be in working condition? Changing oil, replacing tires, filters, antifreeze or antifreeze on time does not give you a full guarantee that the truck will start. Especially in the cold. The battery is what you need to keep your car running smoothly
What do they wash the car with? Instructions and rules for the use of detergents and cleaners when washing a car
Before, cars were washed in yards and garages with rags from a bucket. Now times have changed. Almost no one does it manually anymore, and if they do, it is with the help of pressure washers. In most cities, a variety of car washes provide services. How do they wash cars in most cities?
Where are the injectors in the car and what are they for
The nozzle is a fuel dispenser. Also, its function is to make an air-fuel mixture and spray it into the combustion chamber of the engine. Depending on how the nozzle works, and its location depends
Gasoline pump: where is it located and how does it work, description and purpose of the device
The article details the purpose of the fuel pump. The principle of its operation on injection and carburetor engines is considered. Attention is focused on the location of the fuel pump in both cases. Causes of fuel pump failure are given
What are car start chargers and how much do they cost?
Probably every motorist has faced the problem of a dead battery. This is especially unpleasant when everything is discovered 5 minutes before departure. There are two ways out of this situation. The first is the installation of a new, pre-charged battery on the car. The second is recharging the old battery with a special device. Of course, the first method will solve the situation very quickly, but few of us keep 2 charged batteries in the garage
