“beam pumping unit”造句，怎麼用beam pumping unit造句

The steel plate that is attached to the end of the walking beam on a beam pumping unit.

Based on the theory of modular design,a beam pumping unit is assumed to be separated into several modules according to their specific functions.

Optimum design for double-horse head beam pumping unit is a question of non-linear programming with inequality constraint condition and multi-objective function.

The geometric dimensions and balance parameters of the beam pumping units are optimized. As a result, Me is re- duced 31.2% and Mnmax is reduced 35.3% than phased balance.

Dynamics simulation of hydraulic beam pumping unit based on 3D model.

Development of the balance-type walking beam pumping unit and field test

The Performance of a beam pumping unit with incremental, stroke is influenced by the linkage dimensions of the cross double rocker mechanism.

Compared with conventional beam pumping unit, the swing-rod beam pumping unit can reduce the maximum crank axle torque markedly, reduce and even eliminate negative crank axle torque.

Optimum design for double-horse head beam pumping unit with rear horse head′s outline of spiral of Archimedes

Two-horse head beam pumping unit rod load and torque variation

The influence of variable load on a beam pumping unit on the electric current, input power, efficiency and power factor of the electric motor is discussed, and relevant calculating formulae are given.