CAJ | 학술논문

对发动机外特性曲线进行研究,发现速度特性曲线扭矩上升段为发动机不稳定工作区域,分析并指出了发动机在任意节气门开度下的稳定工作转速范围;结合某国产汽油机进行了台架试验,测试了若干组速度特性曲线数据,建立了该发动机特性曲面,描绘了该发动机的最大扭矩山脊线,特性曲面表明:山脊线左侧为发动机不稳定工作区域,山脊线右侧才是发动机稳定工作区域.
대발동궤외특성곡선진행연구,발현속도특성곡선뉴구상승단위발동궤불은정공작구역,분석병지출료발동궤재임의절기문개도하적은정공작전속범위;결합모국산기유궤진행료태가시험,측시료약간조속도특성곡선수거,건립료해발동궤특성곡면,묘회료해발동궤적최대뉴구산척선,특성곡면표명:산척선좌측위발동궤불은정공작구역,산척선우측재시발동궤은정공작구역.
This paper discusses the engine external characteristics curve and finds out that the engine torque raised segment in the speed characteristic curves is an unstable working area. Then it points out the stable working speed area at any opening of the throttle. Combined with a measured data of a domestic gasoline engine, it estab-lishes a characteristics surface of the engine, working out the maximum torque ridge line and its steady working ar-ea. It concludes that the left area of the maximum torque ridge line is unstable working area, and the right area of the maximum torque ridge line is stable working area. This study helps to express the engine's working surface ac-curately, which is significant for engine characteristics theoretical and applied research.