Deep well pump jack counterbalance control means

• 1. 用于平衡千斤顶的具有压力补偿功能的平衡双向锁 [P] . 中国专利： CN201173124Y . 2008.12.31
• 2. 一种油囊式油浸潜水深井泵增加独立机封室及油腔油压平衡囊装置 [P] . 中国专利： CN209687740U . 2019.11.26
• 3. Well pump jack with controlled counterbalancing [P] . 美国专利： US4377092A . 1983-03-22

  机译： 井泵千斤顶，可控平衡

• 4. PUMP JACK PUMP-OFF CONTROL METHOD AND PUMP JACK CONTROL APPARATUS [P] . CA2667599C . 2014-09-23

  机译： 抽油烟机的抽油烟控制方法及抽油烟机的控制装置

• 5. Pump jack pump-off control method and pump jack control apparatus [P] . 美国专利： US8106615B2 . 2012-01-31

  机译： 抽油机抽油控制方法及抽油机控制装置

• 1. Control characteristics of D+A combined multi-pump controlled system [J] . Yao Jing, Wang Pei, Cao Xiaoming, 高技术通讯（英文版） . 2018,第003期
• 2. A Micro Peristaltic Pump Using an Optically Controllable Bioactuator [J] . Eitaro Yamatsuta, Sze Ping Beh, Kaoru Uesugi, 工程（英文） . 2019,第003期
• 3. A Micro Peristaltic Pump Using an Optically Controllable Bioactuator [J] . Eitaro Yamatsuta, Sze Ping Beh, Kaoru Uesugi, 工程（英文） . 2019,第003期
• 4. Improving the Energy Efficiency of the Sucker-rod Pump via Its Optimal Counterbalancing [C] . E.M. Solodkiy, V.P. Kazantsev, D.A. Dadenkov International Russian Automation Conference . 2019
• 5. Effects of pump jack geometry on oil-well pump performance. [D] . Purvis, Ross A. 1966
• 6. The Acute Effects of Interval-Type Exercise on Glycemic Control in Type 2 Diabetes Subjects: Importance of Interval Length. A Controlled Counterbalanced Crossover Study [O] . Ida Jakobsen, Thomas P. J. Solomon, Kristian Karstoft -1
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• 8. Fatality Assessment and Control Evaluation (FACE) for Oregon: Construction Worker Died After Falling 20-25 Feet from a Pump-Jack Scaffold. [R] . 2017

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