济南市长请农机局机电研究所研制的“内燃机电热式集滤器”解决了车辆冬季难起动问团，它既能过滤油中杂质，又能预热机油，具有省时、省力、省油、减少机件磨损、安装方便、经济耐用等特点，其技术指标达到国家规定，性能可不，荣获国家专利（ZL922118744），可广泛用于柴油机 Jinan Mayor invited the Agricultural Machinery Institute Institute of Electrical and Mechanical developed the “internal combustion engine electrothermal collector filter” to solve the vehicle difficult to start the mission in winter, it can filter oil impurities, but also preheat the oil, with time-saving, labor-saving, fuel-efficient and reduce Mechanical wear and tear, easy installation, economic and durable features, its technical indicators have reached the state regulations, the performance may not, won the national patent (ZL922118744), can be widely used in diesel engines