Diesel Injector Fuel Injector 0445120140 Bosch for VW 18.320 Eot 8.3 Cummins Isce I6

Under normal circumstances, the oil amount of the first and fourth holes of the nozzle for two-valve diesel engine is slightly larger, and the oil amount of the second and third holes is slightly smaller. Under the condition that the diameter of each nozzle is the same, this is mainly related to the Angle between each nozzle and the axis. The test results of each nozzle flow of some nozzle with certain processing quality problems are obviously different from the former, but the flow of the third or second hole is slightly greater than 1 and 4 holes. Engine bench test results show that the installed performance of the nozzle becomes worse when this phenomenon occurs, which is mainly due to some problems in the processing quality of the nozzle, such as the shape of the head of the needle valve, the volume of the pressure chamber, the processing accuracy of the nozzle, the diameter of the nozzle, the relative position and Angle of the nozzle, the roughness of the nozzle, the burr removal effect in the nozzle, the cleaning condition of the nozzle and other factors All of them affect the flow dispersion characteristics of each orifice.

The above test results using this testing equipment show that because the equipment can simultaneously measure the flow rate of each nozzle hole, more information can be obtained than only measuring the total flow rate, so as to find the problems that are not easy to be found in the past, and provide a new measuring tool and means for further improving the quality of the nozzle.

5 Closing Remarks

The test results show that the device is reasonable in design, convenient in detection, reliable in performance, and can quickly and accurately measure the flow rate of nozzle couple parts.