The Research And Design Of The Integrated Fuel Pump

The fuel pump mainly composed of three parts, the gear pumps, motors and controlsystems. According to the shortcomings of the current locomotive fuel pump. In this paperpresent the design of the integrated fuel pump.Between whole and part, well coordinated work is integrated, to play to the overalleffectiveness of the overall optimization. Through system integration to achieve the effect ofone plus one is greater than 2. Gear pumps, motors, control systems design integrated into oneto reduce the overall mass and volume .Achieve structural optimization design and internalcooling of the motor and control system. Using BLDCM to improve pump efficiency andreduce noise. And using arc gear pump instead of involute gear pump To reduce vibration,noise generated by the trapped oil, bearing loads, reduce wear and prolong life. In controlsystems using the more advanced DSP (digital signal processor) control technology. As thecore component TMS320F28335 chip motor control system, the motor is more stable, moreaccurate. In this paper, the control system including hardware and software of two parts. Thehardware design of the circuit part of the overall institutional design, the drive circuit design,the position detection circuit design, hardware protection circuit design. The software part ofthe design including the main design, the interrupt service routine, the motor start subroutine,system protection, interrupt subroutine.Through various parts of the in-depth study designed to test prototype, and tested theoverall design to achieve the desired effect. This fuel pump can not only be applied to thelocomotive, and can also be used in other types of engines, has broad application prospects.