“pumping unit”可以造什么句，pumping unit造句
back-side-crank pumping unit
The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
Traditional horsehead of CYJ8-3-37HF pumping unit always suffers from crack in use.
Development of the balance-type walking beam pumping unit and field test
Optimum design for double-horse head beam pumping unit with rear horse head′s outline of spiral of Archimedes
A coupler drive system for pumping unit is developed by using the theory of hydraulic drive of coupler.
In this paper, analyzed the beam-Pumping unit's main problems of wasting energy and low efficiency in use and researched on a variety of new oil pumping unit status.
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.
This thesis on research dynamical loads on rubber transmitting belts used in driving pumping unit with long-stroke, especially the influence of the elasticity on rubber transmitting belts and work condition is discussed.
The electro hydraulic servo loading system of pumping unit is a kind of position disturbance servo loading system, and there are nonlinear uncertain factors and position disturbance in it.
rotary horsehead pumping unit
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.
Two-horse head beam pumping unit rod load and torque variation
The conventional crank-link pumping unit is replaced by chain transmission and the driving power and the weight of unit are reduced.
The method of motion analysis of new type and long stroke pumping unit with vertical walking-beam and pylon was studied.
The status of various reduction motors of pumping unit has been analyzed, and a research on design of a kind of three groups duplicate gear reduction motor has been made.
air-balanced sucker-rod pumping unit
The steel plate that is attached to the end of the walking beam on a beam pumping unit.
The Performance of a beam pumping unit with incremental, stroke is influenced by the linkage dimensions of the cross double rocker mechanism.
Dynamics simulation of hydraulic beam pumping unit based on 3D model.
Application of Watt chain six-bar linkage on pumping units.
The article introduces systematically the schematic method for the six-bar modification of a conventional pumping unit by use of Stephenson' chain.
