검색결과 : 2건
No. | Article |
---|---|
1 |
Kinematic and dynamic simulation of a dual-beam pumping unit for increasing stroke and reducing force Yi L, Leinonen T Journal of Energy Resources Technology-Transactions of The ASME, 126(4), 320, 2004 |
2 |
Synthesis and analysis of stroke-increasing and force-balancing mechanisms for rod pumping units Yi L, Leinonen T Journal of Energy Resources Technology-Transactions of The ASME, 124(1), 14, 2002 |