valve control motor

The control strategies of the DC-motor-driven clutch, step motor-driven transmission and step motor-driven oil valve were studied.

对电机驱动离合器、变速器和油门的控制技术进行了研究。

The digital servo valve is composed of 2-stage pneumatic servo valve developed with rotary and linear motions of a single spool, and stepper motor under continual control.

2D气动数字伺服阀由阀芯双自由度设计的两级气动伺服阀和连续跟踪控制的步进电动机作为电&机械的接口两部分构成。

The author achieved the hardware circuit design and system algorithm design, using stepper motor to adjust the oil rod and pre-stroke sleeve, using the proportional solenoid valve to control EGR valve.

本文针对常柴4L88系列柴油机，采用步进电机控制油量调节齿杆和预行程滑套、比例电磁阀控制EGR阀门的方案，完成了控制系统的硬件电路和控制软件的设计。

Integrating application and research technology of DCS and frequency inverter, realize switchover without interference between control valve and frequency-inverter motor in producing process control.

经过DCS与变频控制技术的结合应用与研究，实现了生产过程控制中调频电机与调节阀的无扰动切换。

The thesis studies mainly the drive and control technique of aeronautic linear DC step motor ( LDCSM) used in emergency discharging oil valve on airplane.

本文针对“十五”航空基金项目&新型航空用直线直流电动机驱动控制系统，研究了飞机应急放油阀用航空直线步进电动机的驱动控制技术。

When load is between 15% and 25%, feedwater control valve is closing at fixed speed determined by function module, main motor-operated-valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly;

15%至25%负荷阶段，给水调节阀由函数模块按照一定的速率自动平滑关闭，主给水电动门自动打开，汽包水位控制方式自动无扰切换为给水泵自动控制；

Both units ( 2X300MW) of one power plant in India, designed and constructed by China, employ feedwater system composed of three 50% capacity motor driven feedwater pumps, one low load feedwater control valve and one main motor-operated-valve.

由我国承建的印度某电厂两台300MW发电机组，其给水系统设三台电动调速给水泵、一个低负荷给水调节阀（用于低负荷水位控制）和一个电动主闸阀。

Apply to motor vehicles, petroleum, chemical, pharmaceutical and automatic control valve system.

适用于汽车 、 石油 、 化工, 制药及自动控制系统中的调节阀.