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机油压力报警开关漏油分析及解决方案

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机油压力报警开关广泛应用于多个领域,作为机油压力报警系统重要原件检测机油压力并发出报警信号.某发动机用机油压力报警开关在台架耐久试验中漏油频发,成立公关小组调查.从设计、制造、安装、运行过程排查,用故障树FTA分析原因,确认要因为压紧垫片弯折面无倒角和膜片冲型面有裂纹.针对要因制定对策,重新设计压紧垫片结构,更换膜片结构及材质,优化膜片制作工艺.效果检查表明改进后耐压合格,台架耐久试验及市场量装跟踪无泄漏,漏油问题解决,为其他部件优化提供思路.
Oil Pressure Alarm Switch Oil Leakage Analysis and Solution
Oil pressure alarm switch is widely used in many fields,as an important component of oil pressure alarm system to detect oil pressure and send alarm signals.The oil pressure alarm switch for an engine was leaking frequently in the bench durability test,and a public relations group was established to investigate.Check the process of design,manufacturing,installation and operation,analyze the cause with fault tree FTA,and confirm that there is no chamfer on the bending surface of the compression gasket and crack on the punching surface of the diaphragm.According to the main reasons,the structure of the compression gasket is redesigned,the structure and material of the diaphragm are replaced,and the production process of the diaphragm is optimized.The effect check shows that the improved pressure resistance is qualified,the bench durability test and market load tracking have no leakage,the oil leakage problem is solved,and the ideas for the optimization of other components are provided.

oil pressure alarm switchoil spillsdiaphragmcontact point

卢军波、李红梅

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力帆科技(集团)股份有限公司,重庆 401120

机油压力报警开关 漏油 膜片 触点

2025

汽车电器
长沙汽车电器研究所

汽车电器

影响因子:0.195
ISSN:1003-8639
年,卷(期):2025.(1)