2. Wang Yiqun, edited by Kong Xiangdong. Fundamentals of control engineering. Machinery Industry Press, 200 1, 1.
3. Editor-in-Chief Lu Yongxiang and Editor-in-Chief Kong Xiangdong (writing the first chapter of Chapter 5). Handbook of hydraulic and pneumatic technology. Machinery industry press. June 5438, 2002+10 month.
4. Editor-in-Chief Liu Xinde and Editor-in-Chief Kong Xiangdong (writing Chapter 3. 1 and Chapter 5). Pocket hydraulic pneumatic manual. Machinery industry press. March 2004.
5. Kong Xiangdong, edited by Wang Yiqun. Fundamentals of Control Engineering (3rd Edition) (the national planning textbook of the 11th Five-Year Plan for general higher education). Machinery Industry Press, March 2008, 1. The invention patent number of the four-high rolling mill with work roll offset and cross comprehensive adjustment plate is 9 1 1008.
2. American invention patents
Patent No.7013223b1
Patent date: March 65438, 2006+April.
Inventors: Zhang Qin (USA), Gao Yingjie (China) and Xiangkong (China),
methodandappartusforanalyzingperformanceofhydraulicpump。
3. Leather-bag hydraulic accumulator with self-adaptive parameter adjustment. The invention patent number is ZL2009 10073744.5, and the inventor is 1, which was published in 20 1 and1.
4. A proportional cartridge valve with variable flow gain, utility modelNo.: 201kloc-0/20504491.5, published by the second inventor on May 8th, 200012.
5. An undamped hydraulic yaw system based on pressure detection. : 20 1120559412.0, inventor's number1,published on July 20 12.
6. Proportional valve controlled hydraulic motor independent pitch control system, practical model number: ZL 20 1120558712.7, inventor'sNo.1,published in 20 12/October 24th.