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进一步降低机油消耗和提高其使用寿命,是完善柴油机的基本任务之一。按机油消耗指标来看,苏联制造的很多柴油机落后于先进国家的水平。从国外柴油机在苏联试验来看,机油消耗为燃油消耗量的0.4—0.7%,而较好的为0.2—0.4%。苏联柴油机制造业暂定的耗油定额为0.6—0.8。因此,在研究所和柴油机制造厂面前提出了研究结构和工艺措施的任务,使机油消耗量降低到燃油消耗量0.3—0.5%的水平。 降低机油烧损量gM·Y,课题涉及Ч9.5/10高速柴油机,其gM·Y值为燃油消耗量的1%以上。为了降低机油消耗量,在柴油机上设计和试验了不同弹性的铸铁油环和钢带环。油环弹性的提高是依靠采用专门的衬簧(弹簧式和片式)。油环弹性根据ГОCT7295一76测量,据此确定活塞环对缸壁的平均压力P。在8瓩柴油机—发电机组(柴油机2Ч9.5/10)上,研究了油环弹性对机油消耗及使用寿命的影响,使用燃油按ГОCT305—73、M10B2,机油为TY38—101—278—72,用下述负荷规范:空转、50%、75%、100%、110%。110%负荷规范下工作1小时(在100%负荷规范下工作9小时以后)。柴油机油底壳每经25小时加油一次,而机油的物理—化学分析试样每经
To further reduce the oil consumption and improve its service life, it is one of the basic tasks to perfect the diesel engine. According to the oil consumption index, many Soviet-made diesel engines lag behind the advanced countries. From foreign diesel engine tests in the Soviet Union point of view, the oil consumption of 0.4-0.7% of fuel consumption, and preferably 0.2-0.4%. The provisional fuel consumption quotas for the Soviet diesel engine manufacturing industry are 0.6-0.8. Therefore, in the face of the Institute and the diesel engine manufacturing plant, the task of studying the structure and process measures has been put forward, reducing the oil consumption to the level of 0.3-0.5% of the fuel consumption. Reduce the oil loss gM · Y, the subject involves Ч9.5 / 10 high-speed diesel engine, the gM · Y value of the fuel consumption of 1% or more. In order to reduce the oil consumption, different elastic cast-iron oil rings and steel belt rings were designed and tested on diesel engines. Elastic ring is enhanced by the use of special spring (spring and slice). Oil ring elasticity measured according to ГОCT7295 a 76, thus determining the average piston pressure on the cylinder wall P. The effect of oil ring elasticity on oil consumption and service life was studied on an 8 瓩 diesel engine-generator set (diesel engine 2,95 / 10). The fuel oil used was ГОCT305-73 and M10B2, the oil was TY38-101-278-72, Use the following load specifications: Idling, 50%, 75%, 100%, 110%. Work 110% load for 1 hour (after 9 hours at 100% load). Diesel oil pan refueling once every 25 hours, while the oil physical - chemical analysis of each sample