Improvements to the hydraulic rams have been, or transformers are based on the principle of the hydraulic hammer

• 1. 液压打桩锤油路、提升液压打桩锤管道部件寿命的方法、液压打桩锤 [P] . 中国专利： CN113202095A . 2021-08-03
• 2. 摆动液压马达控制的斜盘柱塞式液压变压器 [P] . 中国专利： CN103016430A . 2013-04-03
• 3. Improvements to the hydraulic rams have been pressure or transformers, based on the principle of the hydraulic hammer [P] . 法国专利： FR36230E . 1930-04-30

  机译： 根据液压锤的原理，对液压柱塞的改进是压力或变压器

• 4. Improvements in hydraulic rams, or pressure transformers based upon the principle ofthe hydraulic hammer shock [P] . 英国专利： GB297121A . 1929-02-28

  机译： 基于液压锤冲击原理的液压夯锤或压力互感器的改进

• 5. Transformer of pressure (and consequently, the flow rate) of a current of fluid, based on the principle of the hydraulic ram [P] . 法国专利： FR592730A . 1925-08-08

  机译： 基于液压柱塞的原理的流体流的压力（因此，流量）的变压器

• 1. Design and Experiment of Electronic-hydraulic Loading Test-bed Based on Tractor’s Hydraulic Steering By-wire [J] . Yue JIN, Yang LU, Jiahui GONG, 亚洲农业研究：英文版 . 2015,第012期
• 2. Research on a Hydraulic Impact Hammer System for Pipe-Ramming [C] . Kun Yin, Jianming Peng, Qingyan Wang, American Society of Civil Engineers(ASCE) International Conference on Pipeline Engineering and Construction v.2; 20030713-20030716; Baltimore,MD; US . 2003
• 3. Frequency Spectrum Analysis of Water Hammer Events during Hydraulic Fracturing and the Associated Diagnostic Applications [D] . Clark, Connor J. 2018
• 4. Theoretical Stable Hydraulic Section based on the Principle of Least Action [O] . Noriaki Ohara, Katsu Yamatani -1
• 5. WATER ENERGY IN HYDROAMELIORATIVE SYSTEMS USING THE HYDRAULIC TRANSFORMER TYPE A. BARGLAZAN AND THE HYDRAULIC HAMMER (HYDRAULIC PUMP) [O] . Teodor Eugen Man, Laura Constantinescu, Dima Attila Blenesi 2010
• 6. Development of Micro-Based Interactive Computer Programs: Hydraulics [R] . Sarikelle, S. 1993

• 1. RESEARCH OF THE DYNAMIC CHARACTERISTICS ON A NEW HYDRAULIC SYSTEM OF ELECTRO-HYDRAULIC HAMMER [J] . . 中国机械工程学报 . 2001,第002期
• 2. Simulation and Experimental Study on Influence of Multi⁃port Integrated Hydraulic Transformer Port Number on Transformer Ratio Characteristics [J] . Chengqiang Liu ,Nianning Luo ,Chang Liu . 哈尔滨工业大学学报:英文版 . 2021,第6期
• 3. Sliding Mode Control of Hydraulic Pressure in Electro-Hydraulic Brake System Based on the Linearization of Higher-Order Model [J] . Qiping Chen ,Haoyu Sun ,Ning Wang . 流体力学与材料加工(英文) . 2020,第3期
• 4. Development of River Rating Curves for Simple to Complex Hydraulic Structure Based on Calibrated HEC-RAS Hydraulic Model, in Kwale, Coastal Kenya [J] . Calvince Wara ,Mike Thomas ,Suleiman Mwakurya . 水资源与保护（英文） . 2019,第4期
• 5. 全液压锤即电液锤是液压锤发展的又一里程碑 [C] . . 第十届中国国际锻造会议暨2008年全国锻造企业厂长会议 . 2008
• 6. 斜盘柱塞式液压变压器缓冲结构与流场仿真研究 [A] . 李文杰 . 2021