universal pump

The feature of the progressive cavity pump mobile intermittent recovery technique is using a tractor as power unit, adopting a double universal coupling transmitting the power to a drive head to make the rod string rotate and thereby drive the progressive cavity pump for pumping.

新开发的螺杆泵机动间歇采油技术及设备的主要特征是用拖拉机做动力源，用双万向联轴器把动力传递给驱动头，由驱动头带动抽油杆柱旋转，进而驱动螺杆泵旋转抽油。

Calculation of Machining Parameters for Grinding of Internal Race in Gothic Arc Type Ball Cage Universal Joint The Calculation and Application of Dynamical Parameter in the Combinative Operation of Centrifugal Pump

球笼式万向节钟形壳内滚道磨削加工参数计算离心泵变速与变径联合调节时性能参数计算与应用

This paper introduces a new type of portable power-operated aspirator which is composed of tubular piston oilless pump, universal motor, automatic liquid level control system, noise proof and vibration absorptive devices and so on.

介绍一种由筒形活塞无油泵、交直流两用电动机、自动液面控制系统、防噪声和减震装置等组成的新型便携电动吸引器装置。