piston top

The structure parameters include wedge-shaped combustion chamber angle, piston top shape and the locations of dual-spark.

其中结构参数包括楔形燃烧室角度、活塞顶形状和火花塞位置，运行参数包括点火时刻、混合气浓度和残余废气量。

In order to understand better the process of hydrocarbon formation and the effect of the top land crevice and the oil layer of the cylinder liner on unburned hydrocarbons during cold start and idling period, the temperature of piston top land and liner has been measured.

为了更好地弄清起动和怠速时发动机缸内未燃碳氢生成过程以及顶岸间隙和油膜对缸内未燃碳氢的影响，测量了起动和怠速过程活塞顶岸壁面和缸套壁面温度。

moreover, the ball plungers (6) are positioned near the piston top dead center, at which the piston ring is positioned.

另外，球塞（6）设置在靠近活塞上死点的活塞环所在的部位。

and the crown part is provided with a piston top and a piston ring belt which form the lower wall of a combustion chamber.

所述冠部上设置有构成燃烧室下壁的活塞顶以及活塞环带。

ion nitriding on piston top of diesel engine of locomotive

内燃机车活塞赛顶的离子氮化

Ion Nitridation and Technology Optimization for 240 Two-pieces Piston Top

240组合活塞钢顶氮化及工艺优化

ion nitridation and technology optimization for 240 two -pieces piston top

240组合活塞钢顶氮化及工艺优化

Piston top lands are machined to piston manufacturer's specifications.

根据制造厂家说明书要求重新加工活塞环.