CR Diesel Injector Spare Parts is to a certain time in the fuel injection pump high-pressure fuel supplied in the fuel is atomized into fine particles is sprayed into the cylinder , and distributed throughout the combustion chamber, the fuel particles are mixed with air to form a combustible good mixed gas . When bad injector work, make diesel starting difficulties, running black smoke, power and economic decline , speed instability.
Injector is a key component of the diesel engine , and its direct impact on the quality of the work of the diesel engine power, economy, emissions and reliability. According to the requirements mixture formation and combustion, the injectors should have a certain injection pressure, injection stroke , the appropriate injection cone angle .
Currently, small and medium- power diesel engines used closed injector. When not closed injector fuel injection, an injection hole is pressed by a strong spring to close the needle valve , the oil separated from the high pressure combustion chamber . Before the fuel injected into the combustion chamber , the spring will have to overcome in order to put the needle valve open. That is, to have the fuel injection is started to a certain pressure . This ensures that the quality of fuel atomization can quickly cut off the fuel supply , fuel leakage does not occur .
Commonly used closed injector, there are hole injector and pintle injector, the head of the nozzle structure as shown below:
(Live chat)
