液压自由活塞发动机的节能方式研究  

Research on Energy-saving Mode of Hydraulic Free Piston Engine

作　　者：夏必忠[1] 周华[1] 傅新[1] 杨华勇[1] 杨开传 

机构地区：[1]浙江大学流体传动及控制国家重点实验室 [2]杭州市劳动安全卫生检测站

出　　处：《农业机械学报》2001年第6期8-10,14,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目 (项目编号 :5 0 0 75 0 77)

摘　　要：液压自由活塞发动机是将内燃机和液压泵集成于一体 ,实现动力非刚性传输的复合发动机。本文从其内部能量转换及外部能量回收两个方面 ,详细地分析和阐明了液压自由活塞发动机各种节能方式和实现途径。以液压挖掘机为例 ,强调液压自由活塞发动机作为中心液压站 ,结合二次调节及液压变压器技术 ,简单方便地实现群控节能。A hydraulic free piston engine (HFPE) integrates one hydraulic pump and diesel engine into one compact assembly. As a compound engine used for nonstiff-transmission of power, its internal energy conversion and external energy recuperation process were analyzed. The great advantages such as high fuel-economy, low energy-conversion loss, flexible power combination, multi-substitute fuel and energy recapture were described. Last but not the least, HFPE makes multi-load control easy through serving as power central station and using hydraulic transformer as interface between hydraulic motors and common pressure rail. HFPE has a promising potential in mobile machinery that starts and stops frequently.

关 键 词：液压自由活塞发动机 节能 发动机 

分 类 号：TK45[动力工程及工程热物理—动力机械及工程] TK018