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1.前言纵观各种汽车发动机杂志,目前大多数学者的研究方向之一是如何减少发动机的摩擦损失。六年前我们通过活塞摩擦力的测量认识到:主要的摩擦损失是活塞与气缸间的摩擦,以及轴承和各种附属装置造成的摩擦损失。这些摩擦损失在发动机总损失中占有很大的比例。现在,对于各种形式的摩擦和润滑的特性,尚未完全解释清楚。而且,为了减少摩擦损失目前所采取的缩小滑动面,降低润滑油粘度以及加入减少摩擦的添加剂等等措施的效果也并不好。相反地,却带来了摩损严重,润滑油消耗率高以及其它一系列新的问题。面对这样的状
1. Foreword Looking at a variety of automotive engine magazine, most scholars at present one of the research directions is how to reduce engine friction loss. Six years ago we learned from the piston friction measurement that the main friction loss is the friction between the piston and the cylinder, as well as the friction losses caused by the bearings and various attachments. These friction losses account for a large proportion of the total engine loss. Now, the characteristics of various forms of friction and lubrication have not yet been fully explained. Moreover, in order to reduce the friction loss to reduce the sliding surface, reduce the viscosity of lubricating oil and add friction reducing additives and so on the effect is not good. On the contrary, it brings serious wear and tear, high consumption of lubricants and a series of other new problems. Faced with such a shape