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Ruston 254mm缸径柴油机在铁路牵引中的应用可追溯到1939年,在国内外铁路用户中享有很高的信誊。而新型的RK270柴油机正是在这种老机型基础上的最新发展,它一方面保留了上一代RKC型柴油机经过考验的优良特性,同时又发展了一些新的结构特点,以满足提高性能的需要,从而维护了该公司柴油机50多年来在铁路牵引中赢得的良好可靠性信誉。单缸制动功率300kw的RK270柴油机完全能满足新的3型客货两用机车的需要。6RK 270T柴油机已经成功地通过了现行的英国铁路验收试验。本文叙述了为预测柴油机的性能而采取的措施,这些措施的目的在于在试验开始之前优化涡轮增压器和燃油喷射系统。文中详细地介绍了曲轴箱设计改进的整个过程。预计的性能与台架试验结果的充分比较表明,曲轴箱的设计是能够承受所受载荷的。在整个试验计划完成之后,对柴油机进行了解体检查。除活塞头部在螺栓孔处发现有裂纹外,主要零部件皆处于良好状态。尔后,对活塞结构进行了修改,并重新成功地通过了试验。
The application of the Ruston 254mm bore diesel engine to railway traction dates back to 1939 and enjoys a high level of confidence among railway users both at home and abroad. The new RK270 diesel engine is exactly the latest development on the basis of this old model. On the one hand, it retains the proven characteristics of the previous generation of RKC diesel engines and at the same time has developed some new structural features to meet the needs of improving performance Needed to maintain the company’s diesel engine for more than 50 years in railway traction won the credibility of a good reliability. Single-cylinder braking power of 300kw RK270 diesel engine fully meet the needs of the new 3-type passenger and motorcycle. 6RK 270T diesel engine has successfully passed the current British railway acceptance test. This article describes the measures taken to predict the performance of a diesel engine. The purpose of these measures is to optimize the turbocharger and fuel injection system prior to the start of the test. The paper introduces in detail the whole process of crankcase design improvement. A good comparison of the predicted performance with bench test results shows that the crankcase is designed to withstand the loads. After the entire pilot project was completed, the diesel engine was disassembled. Except for cracks in the bolt holes in the head of the piston, the main components are in good condition. Later, the piston structure was modified, and successfully passed the test.