The nozzle itself is a constant valve (often closed valve, which means that the valve has been closed when there is no input control signal; and the valve is always in the open state when the control signal is not input), and a valve needle moves up and down to control the opening and closing of...
The nozzle itself is a constant valve (often closed valve, which means that the valve has been closed when there is no input control signal; and the valve is always in the open state when the control signal is not input), and a valve needle moves up and down to control the opening and closing of the valve. When ECU reaches the fuel injection instruction, the voltage signal makes the current flow through the coil in the nozzle, producing the magnetic field to suck the valve needle and let the valve open so that the oil can be ejected from the injection hole. The biggest advantage of fuel injection is that the control of fuel supply is very accurate, allowing the engine to have the correct air fuel ratio in any state, not only to keep the engine running smoothly, but also to conform to the regulation of environmental regulations.
Now the injection nozzle used in the car is actually a simple solenoid valve. When the electromagnetic coil is electrified, it produces suction, the needle valve is sucked up, and the injection hole is opened. The fuel through the annular gap between the pin and the hole of the needle valve is spewed out at high speed, forming a fog, which is good for the burning. In the past, the nozzle of diesel engine was controlled by machinery, and the mechanical diesel nozzle was operated by controlling precision coupling parts (needle valve and needle valve body). The nozzle coupling is one of the three precision parts of the traditional diesel engine, and the three precision coupling parts are: plunger, plunger sleeve, needle valve, needle valve body, oil outlet valve and oil outlet valve seat. The gasoline engine nozzle is a part of the electronic control system of the gasoline engine, replacing the carburetor of the carburetor type gasoline engine. Automotive nozzles are mainly: Diesel nozzles, gasoline nozzles, natural gas nozzles, etc.
|NO.||Engraved number||Fit injector model||Matching model|
|14||DLLA125P889||0950006480||ISUZU DMAX 2.5STD|
|17||DLLA155P941||0950006510/6511||Dyna 200 N04C Euro|
|0950007720/7730/7731||Toyota LAND CRUISER|
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