A sort of novel dispersant by the reaction of PIBSA with aminosalicylic acid is used for low or medium-speeddiesel engines, with evident effect on solving problem of "black paint".
PIBSA与胺基水杨酸反应合成的一种新型分散剂，应用到中低速柴油机中，对解决“黑漆”现象效果明显；
2
To meet the market demand, a new medium-speed X6170Z diesel engine was designed and developed by Weichai Power CO.
为满足市场需求，潍柴动力股份有限公司自行开发研制了X6170Z型新一代中速柴油机。
3
This article has described the RR bending and upsetting process for crankshaft forging of the medium and high speeddiesel engine.