Njg-427 Engine Lpg Control System Research And Development

Aimed at the status that the market occupancy ratio of the carburetor engine is still upper, and associated with the related laws in our country, it is necessary to refit the carburetor engine into the single-fuel engine of LPG. It can be helpful to make full use of the recent resource of the carburetor engine, and to prolong life, and to lower huge unwanted waste. In order to develop a kind of control system of LPG single-fuel engine, which must be economic and practicable, as well on the safe side, NJST and Nanjing Yuejin Engine LMD. cooperate to design and develop the engine control system applying to NJG427A5 engine. On the base of the technology and the refitting cost, the scheme is put forward firstly to refit the carburetor engine, and then the whole frame of control system is laid out, and the hardware of this system is designed and produced. Then the related performances and parameters of the engine are tested, and based on it, the software of the control system is worked out. At last, the developed engine control system is experimented and adjusted after it is installed on the engine. The experiment is very effective just as expected.