基于降低摩擦功耗的活塞型线优化设计
Piston Profile Optimization Based on Reducing Friction
田放 1黄鹏华 1汪应生1
作者信息
- 1. 上汽通用五菱汽车股份有限公司 广西 柳州 545007
- 折叠
摘要
混合动力汽车对发动机提出高热效率需求,而降低摩擦功耗为提高发动机热效率的有效措施.活塞连杆系统摩擦损耗占整个发动机摩擦损耗的40%～60%,活塞裙部良好的型线设计,可使活塞与缸套间具有合适的油膜间隙,从而产生最佳的流体动力润滑效果,降低活塞摩擦功耗,提高内燃机的热效率.针对某混合动力用高效发动机活塞进行设计优化,使活塞平均磨损载荷降低 56.4%,并通过耐久试验验证.
Abstract
Hybrid electric vehicle requires high thermal efficiency of engine,reducing friction consump-tion is the effective measures for improving thermal efficiency.The population of piston and connecting rod system friction loss was 40%～60%.Good piston skirt design can make the piston and cylinder suit with a suitable oil film clearance,to produce the best hydrodynamic lubrication,to reduce the consump-tion of friction,and to improve the thermal efficiency of internal combustion engine.A piston design opti-mization was carried out for a hybrid power system with high efficient engine,with the piston average wear load reduced by 56.4%,and passed the endurance test lastly.
关键词
混合动力/裙部型线/仿真分析/裙部面压/摩擦功耗/磨损载荷Key words
Hybrid power/Skirt profile/Simulated analysis/Skirt pressure/Friction consumption/Wear load引用本文复制引用
出版年
2024
NETL
NSTL
万方数据