在选择增压柴油机进一步强化的措施时活塞缸套组零件热负荷准则的应用

• 作 者: Л.В.Нечаев 金国庠
• 出 处: 柴油机
• 发表日期: 1984年12期
• 关键词: 缸套 活塞 增压柴油机 平均有效压力 涡轮增压 曲柄连杆 功率 使用性能 机械负荷 转/分

提高已批量生产的运输式发动机的升功率,使它在经济性、热应力和机械应力等方面仍保持在一个合适的水平上,这是使已正常生产并且具有良好使用性能的一些基本机型实现现代化的主要措施之一。这点对于废气涡轮增压柴油机也完全适用。但是,无论用那种方式提高功率——用提高平均有效压力Pe的办法,用提高转速n的办法,或是两者兼而有之,通常都会引起活塞、缸套和气缸盖的热负荷以及曲柄连杆组件机械负荷增加。客观地评价涡轮增压运输式柴由机功率强化是用提高

Raising the power output of a mass-produced transport engine to an appropriate level in terms of economy, thermal stress, mechanical stress, etc., is a way to make some of the basic models that are normally produced and have good performance One of the main measures to achieve modernization. This is also true for exhaust turbocharged diesel engines. However, increasing the power in that manner, either by increasing the mean effective pressure Pe, by increasing the speed n, or both, usually results in thermal loads on the piston, cylinder liner and cylinder head and Crank link assembly mechanical load increases. Objectively evaluate turbocharged transport diesel engine power enhancement is used to improve