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Common rail injectors contain the characteristics of conventional injectors, in addition to an injector that uses a device such as a solenoid-operated valve or a piezoelectrically actuated valve to control the start and end of injection.
Let's talk about the structure and working principle of common rail injector, which is the common fault of injector:
The fuel supply system is an important part of the diesel engine and belongs to the heart of the diesel engine, and the fuel injector is the most important part of the system. Whether the technical state of the injector is good or not will directly affect whether the diesel engine can work...
One: the type of fuel injector. ZS represents the shaft needle type, ZK represents the porous type, and ZCK represents the long porous type.
How to repair the injector? (1) Simple inspection method When the engine is working, touch it with your hand or use a stethoscope to check the vibration or sound when the needle valve of the injector is opened and closed. If you feel no vibration or hear no sound, it means that the injector or its circuit is faulty.
The fuel injector is generally installed on the re-cylinder block that is now directly injected in the cylinder on the intake branch pipe. The gasoline engine nozzle is a part of the gasoline engine electronic control system and replaces the carburetor of the carburetor gasoline engine.
1. Unplug the plug of the injector on the fuel distribution pipe and the plug of the idle speed control valve; 2. Remove the connection between the intake hose and the throttle valve; 3. Unplug the fuel return pipe on the fuel distribution pipe;
1. Replace the damaged gasket and seal ring and the O-ring of the injector, and apply lubricating oil on the O-ring of the injector; 2. Install the injector into the fuel distribution pipe and install the circlip; 3. Install the injector bracket on the fuel distribution pipe;
The fuel injector is mainly composed of a starting circuit, a cold fuel injector and a thermal time limit switch. The function of the cold start fuel injector is to inject fuel into the intake manifold when the engine is cold started to enrich the mixture and improve the engine. the cold start performance of the device.