| 1. | Design and simulation analysis of reconfigurable beam pumping unit 可重构游梁式抽油机的设计和仿真分析 |
| 2. | Study and application of packing feeder for pumping unit on oil well 游梁式抽油机井口盘根旋进器的研制与应用 |
| 3. | Reforming beam pumping unit into dual variable - diameter wheel pumping unit 由游梁式抽油机改造成的双变径轮式抽油机 |
| 4. | Study and simulation about pumping unit with double circulation and each - other balance 双循环互平衡游梁式抽油机的设计及仿真 |
| 5. | Beam pumping units 游梁式抽油机 |
| 6. | Beam - pumping unit 游梁式抽油机 |
| 7. | Analysis and research on the projection declination of horsehead ' s pendulous point of beam pumping unit 游梁式抽油机驴头悬点投影偏差的分析研究 |
| 8. | Adopting high slip motor and increasing the rotary inertia of the rotating parts is an effective approach to achieving good power - saving effect of beam pumping units 采用高转差率电动机,并增加旋转件的转动惯量,是综合提高游梁式抽油机节能效果的有效途径。 |
| 9. | The operational characteristic of beam pumping unit is introduced , beam pumping unit is running , the cause changing three - phase asynchronous motor as a generator is also analyzed in detail 介绍了游梁式抽油机的工作特性,详细分析了抽油机运行时三相异步电机产生“倒发电”现象的原因。 |
| 10. | The main factors influencing power saving of the beam pumping unit with high slip motor are pumping speed of the unit , slip ratio of the motor and rotary inertia of rotating parts 指出影响使用高转差率电动机的游梁式抽油机节能的主要因素是抽油机的冲次、电动机转差率和旋转件的转动惯量。 |