介绍变速泵站优化运行及变速泵机组最佳台数的选择。
The optimized operation of pumping station with variable speed drive (VSD)and the selection of number of pump-units in the station are discussed.
利用特性曲线对变速泵与定速泵并联运行工况进行了讨论，指出其正确切换步骤。
Running conditions of parallel-connected variable and constant speed pump are discussed using pump performance curve, and the correct switch steps are pointed out.
经理论分析计算，确定变速泵理想的转速，确定调节阀理想的开度，调节过程一次完成。
Calculation by theoretical analysis may ascertain the ideal rotate speed of variable-speed pump and ideal opening of regulating valve, completes adjust process at one time.
建立了整定水位PID调节器的控制模型，优化变速泵控制前池水位变化系统的动态品质。
Though setting up the model to calibrating the level control parameter PID, the system dynamic performances is optimized in regulating the upper pool water level by variable speed pumps.
从泵的效率提高、泵的新材料、泵的密封、变速泵、计算机在泵上的应用等几个方面分析了国外工业泵的发展趋势。
The development trends of pumps were discussed from the aspects such as efficiency, new materials, seal, pumps of varying speed and computer applications.
同时在变速箱内用一部电子油泵取代了原有的变矩器泵。
Inside the transmission, an electric oil pump replaces the torque-converter pump.
可变速的水泵：新的可变速的泵在压力鼓系统上面也有改进。
Variable Speed: New variable speed pumps offer a noticeable improvement over accumulator tank systems.
泵轮的旋转作用冲击液体，液体的作用推动涡轮旋转变速器输入轴。
The rotating action of the pump against the fluid and the action of the fluid against the turbine turn the transmission input shaft.
同时建立了该液压电机泵变速控制系统的数学模型。
The model of hydraulic motor pump variable speed control system is built.
变速调节我们已经知道，轴流泵是在一定转速下工作的，而且获得相应的流量、扬程、功率和效率等。
Variable-speed control we already know, at a certain speed axial flow pump are working under, and to obtain the corresponding flow, lift, power and efficiency.
当总循环泵变速运行时，各个支路的流量分配比例保持不变。
When the total cycle pump gear shift operation, the flow of the slip road ratio unchanged.
本文从离心泵变速调节原理入手，探讨了以节能为目标的离心泵变速调节的计算方法和效果。
Based on principle in speed regulation of centrifugal pump, method of speed regulation calculation for energy saving and its effects have been studied.
工作机构的变速和换向靠调节泵或马达的变量机构实现，避免了开式系统换向过程中所出现的液压冲击和能量损失。
The work of agencies to rely on speed and for adjusting the pump or motor variables agencies to achieve, to avoid the open loop system for the process are the hydraulic impact and energy loss.
在高压条件下，通过曲柄连杆机构的变速运动实现钻井泵动力的传递。
Through the crank link system in high-pressured condition of variable speed movement with drilling pump power transfer.
差距尤以液压泵、液压马达和变速箱用旋转油封及液压缸往复动密封的产品质量最甚。
Particularly the gap between the hydraulic pump, hydraulic motor and gearbox oil seals and hydraulic rotary cylinder reciprocating dynamic seal product quality most.
通过设计单泵多马达液压变速器的传动回路，得出多马达中各个子马达之间工作方式的组合可以使变速器传动比有多级变化。
Through the drive circuit design of the new hydraulic transformer, it is concluded that the transmission ratio has multi-level changes due to the combination of each sub motor working mode.
文章介绍了一种获得专利的螺杆泵无级变速驱动装置的结构特点。
This paper presents the structure feature of a patented device that is an infinitively variable device for screw pump.
液压行走，采用进口行走泵和行走马达，无级变速。
供给水轮机模型试验的水泵由一个卧式离心泵组成，由一个整流器自控制的变速电机带动。
The pumping unit supplying the tested models consists in one horizontal shaft centrifugal pump driven by a variable speed D. C. motor itself controlled by a thyristor speed drive.
螺旋输送器依次连接液压马达、液压泵、带轮传动系统、空压机和传动轴、变速箱等。
The spiral conveyor is sequentially connected with a hydraulic motor, a hydraulic pump, a belt wheel transmission system, an air compressor, a transmission shaft, a gearbox and the like.
为此，本文设计了螺杆泵用新型多星形移相变极电机，使得螺杆泵采油系统工作效率进一步提高，同时可以减少了变速装置。
To settle the problem, a novel energy-saving motor used in screw pump was designed, and this motor could make efficiency of screw pump oil system improved and variable speed device decreasing.
在泵的机构中设有变速箱或以液压马达调理其速率﹐以到达转变排量的目标。
Institutions in the pump or hydraulic motor with gear to adjust its speed to achieve the purpose of changing the displacement.
在车架的后方固定一个喷雾泵及药箱，喷雾泵与药箱用软管连接，与变速箱用皮带传动。
In rear of frame, there is sprayer and pesticide box which are linked by soft tube and driven by belt.
指出了ZL5 0铲运机变速箱油液增多的原因是工作泵、转向泵的密封不良或已坏造成的。
The reasons for the failure of oil increasing in the gearbox of ZL50 load-hauler-dumper are the seal of work pump and steering pump out of work or already spoiling.
针对单泵单马达液压变速器手动变量传动比不准确的问题，提出了单泵多马达液压变速器。
The transmission ratio of manual variable single-pump single-motor hydraulic transformer is not accurate. To avoid the problem, the single-pump multi-motors hydraulic transformer is proposed.
针对单泵单马达液压变速器手动变量传动比不准确的问题，提出了单泵多马达液压变速器。
The transmission ratio of manual variable single-pump single-motor hydraulic transformer is not accurate. To avoid the problem, the single-pump multi-motors hydraulic transformer is proposed.
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