TEST APPARATUS FOR FUEL INJECTOR AND FUEL PUMP OF COMMON RAIL OF LARGE INTERNAL COMBUSTION ENGINE

摘要

The present invention relates to a test apparatus for a fuel injector and a fuel pump of a common rail of a large internal combustion engine, capable of simultaneously testing capabilities of both the injector and the fuel pump. According to the present invention, the test apparatus comprises: a tester main body (10) having a frame shape; a fuel pump fixating jig (20) horizontally installed on the tester main body (10), on which the fuel pump (1) is mounted fixatedly; a fuel pump driving motor (30) provided on a lateral surface of the fuel pump fixating jig (20) to rotate the fuel pump (1); a testing fuel supply unit (40) to supply a testing fuel into the fuel pump (1); a common rail (50) to be supplied with the testing fuel in a high pressure and a low pressure by the rotation of the fuel pump (1); an injector fixating jig (60) to fixate an injector (2) on the main body (10), wherein the injector receives the testing fuel of a predefined pressure thereinto by being connected with common rail (50); an injection fuel recovery unit (70) to collect the testing fuel sprayed through the injector (2); a flow rate measuring apparatus (80) to measure a flow rate of the testing fuel collected in the injection fuel recovery unit (70); and a controller (90) to respectively control operations of the fuel pump driving motor (30), the testing fuel supply unit (40), the common rail (50) and the injector (2), and to determine whether the fuel pump (1) and the injector (2) are in a normal operation using the flow rate of the testing fuel measured in the flow rate measuring apparatus (80).;COPYRIGHT KIPO 2016