What is the difference between injectors and nozzles

Fuel injector Pic 1 above is composed of injector holder nozzle holder and nozzle while nozzle Pic 2 below usually called injection nozzle itself. In other words,nozzles,located the head of injector, also is the high precision core part of injector. It requires big dynamic flow range, anti-clogging and strong ability of anti pollution and also good atomization performance. Injector is a crucial component in diesel injection system which control of fuel injection. The fuel injector receives the injection pulse signal from the ECU electronic control unit to precisely control the fuel injection quantity.

If fuel injector is installed on the inlet pipe of each cylinder, this form is called electronic control fuel injection device. The fuel injector should be checked around h.

If the opening pressure is lower than the preset value of 1Mpa or there is serious carbon accumulation in the head of needle valve,The needle valve shall be unloaded and put into the clean diesel oil to be hung out for carbon deposition,dredge the hole with steel wire and adjust after installation,The pressure difference of each cylinder of the same machine must be less than 1Mpa. In order to make the diesel fuel injected into the cylinder of the injector can be fully burned in time, the oil supply time of the pump must be checked regularly.

Search titles only. Search Advanced search…. New posts. Search forums. Log in. For a better experience, please enable JavaScript in your browser before proceeding. Difference between nozzles and injectors. Thread starter highwaytime Start date Jan 9, Joined Jan 7, TDI none. Some of the important injector nozzle design parameters include details of the injector seat, the injector sac and nozzle hole size and shape. These features not only affect the combustion characteristics of the diesel engine, they can also affect the stability of the emissions and performance over the lifetime of the engine and the mechanical durability of the injector.

All nozzles must produce a fuel spray that meets the requirements of the performance and emissions goals of the market for which the engine is produced regardless of details of the fuel system design i. Additionally, specific requirements for injection nozzles can also depend on the fuel system type [] :.