【摘要】 文章通过内、外差动回路的比较分析，阐述了内差动液压缸的特点，介绍了几种内差动液压缸的结构形式以及在作者所研制的液压冲击设备中的具体应用。更多还原

【Abstract】 The paper briefly demonstrates the rapidity of internal differential hydraulic cylinder, introduces some structure forms of internal differential hydraulic cylinder and its application on hydraulic impacting equipment designed by authors.更多还原