节流阀

当压缩机和膨胀机的效率一定时，CO2节流阀循环的最佳高压压力比膨胀机循环的高。

When the compressor and the expander efficiencies are given , the optimal heat rejection pressure in the CO_2 throttle valve cycle is greater than that of in the expander cycle .

波兰KBH-5型液压安全绞车采用国产节流阀的改进

Improvement in Pole KBH-5 type hydraulic safe winch which using the throttle valve made in China

基于MATLAB的节流阀调速液压回路计算机仿真

Matlab-based Computer Simulation of Speed Control Hydraulic Circuit with Throttle Valve

结合Matlab软件分析节流阀流量特性

Analyzing Flow Characteristics of Throttle Valve Combining with Matlab

节流阀的数字化改造及PLC主控单元控制

Digital rebuilding of choke valve and control with main control unit of PLC

先导式比例方向节流阀数字PID调节

Digitizing Adjusting for the Electro-hydraulic Proportional Direction Throttle Valve

同时还对带膨胀机或节流阀的CO2跨临界水-水热泵循环系统进行了实验研究。

And experimental research on performance of the CO2 transcritical water-to-water heat pump cycle system with expander or throttling valve was executed .

与采用节流阀的CO2跨临界循环系统的对比实验验证了CO2滚动活塞膨胀机对于提高效率的作用。

According to the comparison results of throttling valve cycle and the expander cycle , the expander effect on the efficiency is demonstrated .

开发CO2膨胀机代替节流阀是提高CO2跨临界循环系统性能系数的一个有效途径。

As the replacement of throttling valve , CO_2 expander is a significant way to improve the coefficient of performance of the CO_2 transcritical cycle .

系统采用比例节流阀加载方法以及基于虚拟仪器的CAT技术，实现了测试过程的自动化。

The automatic test has been realized by adopting the proportional throttling valve for loading and by use of the CAT technology based on the virtual instrument .

斯坦福的参赛车辆是一辆改装的2006款大众帕撒特，名叫Junior。它的方向盘，节流阀和刹车全部被工程师改装，已经完全由计算机控制。

Stanford 's entrant " Junior " is a converted 2006 Volkswagen Passat whose steering , throttle and brakes all have been modified by engineers to be completely computer-controllable .

MPH是否随着节流阀微开15秒而增加？

Does the MPH increase as the throttle is opened slightly for is seconds ?

流量调节采用针阀或限流器。基于Fluent的锥形节流阀流场数值模拟

Adjustment is provided in the form of a needle-value or restrictor . Numerical Simulation for Flow Field of Conical Wing Valve Based on Fluent

为了使位移&电反馈型先导式比例方向节流阀及其应用系统的数字化，通过对阀本体数学模型的分析，设计了参数自寻优PID调节器，并给出试验系统及试验结果。

In order to digitize the proportional direction throttle valve ho the - system with it , this paper introduces a PID controller with self - optimizing , and presents the experimental system and results .

针对以上问题，研究开发了CO2摆动转子式膨胀机以代替系统中的节流阀回收膨胀过程能量。

Based on the above principle , a CO2 swing type expander was developed to take the place of the throttling valve in the system to recover power during the expanding process .

在CO2循环中可利用无吸排气阀的回转式压缩机，用膨胀机代替节流阀，以提高R290/CO2复叠式制冷循环的性能系数。

The coefficient of performance of R290 / CO_2 cascaded refrigeration cycle can be enhanced by using rotary compressor without suction and discharge valves and by replacing throttle with expander in CO_2 low temperature cycle .

以进油节流阀调速液压回路为例，建立了描述液压调速回路动态特性的集中参数数学模型，给出了在MATLAB环境下建立其仿真模型的方法。

Taking speed control hydraulic circuit with throttle valve placed in in-line as an example , the lumped parameter model was built to describe the dynamic characteristics , the methods to build the simulation models in MATLAB were given .

节流阀把高压侧压力节流到蒸发压力，同时控制高压侧压力并使其随气体冷却器出口温度的变化而变化，CO2制冷系统调节特性与传统制冷系统不同。

By throttles , the high pressure is dropped down to evaporator pressure , and changed with the refrigerant temperature at the gas cooler , the regulation characteristics of the system are different from traditional system .

用P-Q图分析差压式变量叶片泵和节流阀的调速回路

Analyzing the Speed Control Loop Made of the Pressure - Compensated Vane Pump and the Adjustable Restrictor Value with the Drawing P-Q

利用节流阀片弯曲变形量Gr计算方法，对节流缝隙增量和弯曲变形量的关系进行了分析，对节流缝隙增量随压力的变化进行了探讨。

Applying Gr calculation method of throttle valve slice bending transformation value to analyze the relation between throttle aperture increment and bending transformation value , and discuss the change of throttle aperture increment with the pressure change .

QCS003型液压实验台主要包括：由液压泵、溢流阀、节流阀等液压元件组成的液压泵性能实验液压系统；

QCS003 type liquor pressure laboratory bench include mainly : liquor pressure hydraulic pump performance experiment liquor pressure system of pump ;

确定了以P-R方程作为计算天然气液化相平衡的基础模型，并对液化流程中的设备（压缩机、膨胀机和节流阀、多股流换热器）建立了数学模型；

The author chooses the PR equation to calculate the phase equilibrium properties of LNG liquefaction , and builds mathematic models for equipment modules in the liquefaction cycle , which consists of compressor , multi-flow heat exchanger , expander and throttle valve .

气动节流阀流量特性试验方法研究

Study to Test Method of Flow Characteristic of Pneumatic Throttle Valve

节流阀失效的流固耦合分析研究

Study on the fluid - solid coupling analysis of throttle valve

当节流阀进一步打开时，主喷口开始工作。

Further opening the throttle valve activated the main fuel jet .

油气弹簧多片叠加节流阀片与开阀压力研究液压式继动阀回动弹簧

Study on Superposition Throttle-Slice and Opening Valve Pressure of Hydro-pneumatic Spring

电磁比例节流阀控制系统的动态特性研究

Study on Dynamic Features of Control System of Electromagnetic Proportion Throttle

水压比例节流阀的设计及特性研究

Design & Study on Characteristic of Water Hydraulic Proportional Throttle Valve

包括调节阀、节流阀、减压阀等。

Including control valve , throttle , valve and so on .

液压附件，液压油表，线圈，管式节流阀。

Hydraulic accessories , hydraulic oil sheet , coil , tube throttle .