论文部分内容阅读
1.缸套穿孔 康明斯NT855型柴油机在山推TY220型推土机和中环牌自卸汽车上均有使用。它采用湿式气缸套,缸套直接与柴油机冷却水接触进行散热。冷却水在循环过程中冲刷气缸套的外表面,会在气缸套外表面形成穴蚀及气蚀现象;时间一长会使缸套外表面的迎水面处出现较密集的凹坑,严重时会使气缸套锈蚀穿孔,冷却液就会通过缸套的穿孔进入柴油机油底壳内。要检查缸套是否穿孔或具体是哪一缸
1. Cylinder Perforated Cummins NT855 diesel engine in the TY220 bulldozers and the Central Dump Truck are used. It uses wet cylinder liner, cylinder liner and diesel cooling water in direct contact with the heat. The cooling water flushes the outer surface of the cylinder liner during the circulation process to cause cavitation and cavitation on the outer surface of the cylinder liner. Over time, the surface of the liner will have dense pits at the water-facing surface, Corrosion of the cylinder liner perforation, the coolant will be through the cylinder liner perforation into the diesel engine oil pan. Check if the cylinder liner is perforated or specifically which cylinder