Common rail fuel injector and the fuel pump test apparatus of a large internal combustion engine

摘要

The present invention relates to a common rail fuel injector and a fuel pump testing apparatus for a large-sized internal combustion engine, comprising: a frame-shaped testing machine body (10); A fuel pump fixing jig 20 horizontally installed on the tester main body 10 and fixed to the fuel pump 1; A fuel pump driving motor 30 mounted on a side surface of the fuel pump fixing jig 20 for rotating the fuel pump 1; A test fuel supply unit 40 for supplying the test fuel into the fuel pump 1; A common rail 50 to which test fuel is supplied at a high pressure and a low pressure by the rotation drive of the fuel pump 1; An injector fixing jig (60) connected to the common rail (50) and fixing the injector (2) to which the test fuel of a predetermined pressure is supplied, to the main body (10); An injected fuel recovery unit (70) for recovering test fuel injected through the injector (2); A flow meter 80 for measuring the flow rate of the test fuel recovered in the injected fuel recovery unit 70; The operation of each of the fuel pump driving motor 30, the test fuel supply unit 40, the common rail 50 and the injector 2 is controlled and the flow rate of the test fuel is measured using the flow rate of the test fuel measured by the flow meter 80 And a controller 90 for judging whether the fuel pump 1 and the injector 2 are operating normally. With this configuration, the performance of the injector and the fuel pump can be tested at the same time.;