高强化游艇用柴油机开发  

Development of High Power-density Engine for Yacht

作　　者：张英 常会楷 ZHANG Ying;CHANG Huikai(State key Laboratory of Engine Reliability,Weifang 261061,China;R＆D Centre,Weichai Power Co.,Ltd.,Weifang 261061 China)

机构地区：[1]内燃机可靠性国家重点实验室,山东潍坊261061 [2]潍柴动力股份有限公司发动机研究院,山东潍坊261061

出　　处：《内燃机与动力装置》2018年第4期47-56,共10页Internal Combustion Engine & Powerplant

摘　　要：为了研究在车用发动机基础上开发游艇用发动机,根据市场调研情况,确定游艇用发动机的扭矩、功率、转速等指标,各指标都比车机大幅度提升。为达到提升的目标,在结构强化方面,提升主要零部件的材料等级,如蠕铁缸盖和蠕铁曲轴箱的应用开发,活塞采用钢活塞,为达到扭矩指标,采用两级增压、两级中冷的技术,为解决热负荷优化提升了冷却润滑系统,同时也优化燃油系统,采用更高的喷油压力。并通过仿真、试验验证设计,达到游艇用发动机的指标要求。This paper studies the development of a yacht engine based on a vehicle engine. According to market research, the indexes of the yacht engine are determined, and the torque, power, speed and other indexes are greatly improved. In order to achieve the goal of improvement, the material grade of main parts is improved in the aspect of structural reinforcement. For example, the vermicular iron cylinder head and the vermicular iron crankcase are developed for the application and the steel piston takes the place of the ordinary piston. To achieve the torque index, the two-stage turbocharge and two-stage cooling technology is used. To solve the heat load optimization, the cooling lubrication system is improved, and the fuel system is optimized with higher injection pressure. The design is verified by the simulation and experiment to meet the requirements of yacht engine.

关 键 词：游艇 发动机 两级增压 两级中冷 过盈配合缸套 

分 类 号：U674.91[交通运输工程—船舶及航道工程] U664.121[交通运输工程—船舶与海洋工程]