Diesel Fuel Injector 0445120035 Bosch for Cummins for Car Engine Parts

Diesel injectors are generally divided into two types: open type and closed type. However, due to the disadvantages of simple structure and poor fuel atomization of open injectors, it is rarely used at present. Closed injectors are widely used at present. Closed injectors are divided into orifice injectors, needle valve injectors and low inertia injectors according to the injector structure. These are also the most common type of injectors used for different purposes in diesel engines.
The orifice injector is mainly composed of needle valve, needle valve body, ejector rod, pressure regulating spring, pressure regulating screw and injector body. The main parts are needle valve and needle valve body, which are the main components of diesel engine. One of the three precision couplings and the main type studied in this paper. At the same time, the orifice injector is divided into long-hole injector and short-hole injector. The needle guide of the short-bore injector is closer to the combustion chamber. Needle valves are heated more than long bore injectors. It is easy to deform and cause jamming and other faults, so it is mostly used in diesel engines with small thermal loads. The fuel injector is mainly composed of electromagnet, solenoid valve spring, armature, valve stem, isolation block, ball valve, intermediate block, metering hole, sleeve, needle valve, needle valve spring, nozzle, sleeve, inner sleeve, etc.