The nozzle is a fuel dispenser. Also in its function is to make an air-fuel mixture and spray it in the combustion chamber of the engine.
To understand where the nozzle is in the car, you need to find out in which fuel system it works.
Where in the car is the central system nozzleinjection (mono-injection)? It is located in the intake manifold (or collector, through which fuel comes from the carburetor into the engine cylinders) in front of the throttle, which is indispensable for regulating the air supply to the system).
This first injection system, calledreplace the carburetor engines. It has only one 4-cylinder nozzle (that's why it is called "mono-shot"). The nozzle sprays the fuel over the throttle, which enriches it with air. Then this mixture enters the intake manifold and is distributed along the cylinders. The whole process is controlled by different sensors.
Where in the car to find injectors distributedinjection? This system is more complicated. It has 4 nozzles equipped with solenoid valves. They are in the intake tracts of the cylinders, one for each.
Форсунка подаёт бензин на впускной клапан cylinder. The fuel evaporates and mixes with air (the same throttle is responsible for its supply). Unlike the mono-shot, here the fuel mixture is formed in the cylinders themselves.
The operation of the injectors is controlled by an electronic control unit. It is he who signals the Check Engine indicator on the dashboard in case of malfunctions in the engine.
The direct injection system is the most"young" regarding the application on the car. Where the injectors of this system are in the car, it's easy to guess. They absolutely "got close" to the combustion chamber and settled on the top of the cylinder. Accordingly, the fuel gets directly into the combustion chamber and is already mixed there with air. Many nozzles respond to the nozzle operation, the information goes to the control unit.
The operation of the injector in this system is much more difficult: the pressure for fuel supply is much higher, and for a sharp increase in the speed of the machine at low speeds, a double fuel injection is triggered.
In this engine there are two types of mixture formation. Accordingly, the nozzles can operate in two modes:
In both cases, significant fuel economy occurs at high efficiency.
Cars go not only on gasoline ordiesel fuel, but also on gas. As a rule, a gas installation is an additional equipment in a car that is not provided for by the manufacturers. Conventional fuel injectors for such a device are not designed. Therefore, in the kit for the gas cylinder and the reducer go their own nozzles, which are mounted in the engine.
To find where the injectors are in the cargas equipment, it is enough to open the hood. They are a plastic block of four sections (inside each nozzle is located) with the hoses brought to them. This design is mounted as close as possible to the standard nozzles.
Distinctions of a nozzle gas from a gasoline:
After installing the gas equipment of the computerit is necessary to "explain" how to calculate and deliver gas. For this purpose, special adjustment programs are used. They are similar to each other on the interface. Can be used both independently and on specialized services.
Cleaning and adjustment of gas injectors coststo spend after some time of operation, if symptoms of their incorrect work have appeared: the car hardly starts, refuses to go on gas (stalls or rides with jerks). Most often they arise because of impurities that are added to the gas at the gas stations.
To get rid of the problem, you need to change the fine filter and put the nozzles in order.
Determine where in the car there are nozzles HBO, we remove them. The epicenter of the blockage is in the chamber with the rod. We disassemble it, clean it (preferably with alcohol) from the adhered resin, then collect it back.
Using a micrometer, we calibrate the gaps of each rod (they should be the same for all four). If there is no such device, you can contact the service for repair of HBO.
