Testbed for single-cylinder electronic-controlled fuel injector of marine low-speed diesel engine

摘要

#$%^&*AU2020102252A420201029.pdf#####ABSTRACT The invention discloses a testbed for single-cylinder electronic-controlled fuel injector of marine low-speed diesel engine. It comprises an electronic-controlled fuel injection module communicated with ECU, a cooling system connected with the electronic-controlled fuel injection module, an oil quantity measuring mechanism connected with the cooling system, a PLC communicated with the oil quantity measuring mechanism, a weighing module connected with the oil quantity measuring mechanism, a servo motor communicated with PLC and a testbed measurement and control module. The electric-controlled fuel injection module, the PLC, the weighing module and the servo motor are respectively communicated with the testbed measurement and control module. The invention has the advantages that the simulated rotating speed of the servo motor completely meets the rotating speed requirement of the marine lowspeed diesel engine; the fuel injection quantity of the third-party fuel injector per cycle can be measured; it can measure various performance parameters of fuel injector and provide direction for the optimization of control strategies and overall engine performance1 /3 control 2.1 c 4" 2.2 Injection volume control test signal 82 81 5 3 switching 4 ABZ three- Fuel qualityetonicbalance phasesigae 7 6control rotate speed A schematic diagram of the structural framework of the present invention FIG, 1