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485Q型柴油机自投产以来,其活塞、活塞环和曲轴等早期磨损问题一直未得到很好的解决.机体刚性不足是上述问题的根本原因.我们通过多组方案筛选和多次对比试验,并消化吸收了国内外类似产品的成功经验,合理地布置了加强筋并采取了其他一些增强刚性的措施,提高了机体的刚性.将机体在交变应力作用下的变形量有效地控制在设计指标范围内,解决了十多年来该机存在的根本问题,提高了整机的可靠性,延长了使用寿命,降低了噪声、振动和排放,带来了好的经济性,并得到用户好评,从而为该机的批量生产和进一步扩缸成490QA型柴油机打下了坚实的基础.
485Q diesel engine has been put into production since the piston, piston ring and crankshaft and other early wear and tear has not been a good solution to the problem of rigid body rigidity is the root cause of the above problems.We through multiple sets of screening programs and multiple comparative tests and digestion Absorbing the successful experience of similar products at home and abroad, arranging the stiffeners rationally and adopting other measures to enhance the rigidity to improve the rigidity of the body, effectively controlling the deformation of the body under the alternating stress in the range of design indexes Within 10 years to solve the fundamental problems of the machine to improve the reliability of the machine to extend the service life and reduce noise, vibration and emissions, bringing good economy, and users praise, and thus For the machine mass production and further cylinder expansion 490QA-type diesel laid a solid foundation.