plain-and-fertilizer drill

At Water Hydraulic Relief Valve manufacturing process, It described the technological requirements of the pilot valve and main valve.

在纯水液压溢流阀的制造工艺方面，阐述了先导阀与主阀的工艺要求。

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dynamic analysis and experimental on a one-stage water hydraulic relief valve

直动式水压溢流阀的动态特性分析与试验

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a new developed computer system for data acquisition and analysis used in hydraulic relief valve performance test is introduced.

研制出一种液压溢流阀动态性能教学实验计算机数据采集与分析系统。

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flow field simulation of water hydraulic relief valve

直动式纯水溢流阀的流场仿真

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multiple safeties such as the hydraulic relief valve, etc. . .

液压安全阀等多重保险装置。

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plc control and performance of new digital high-pressure hydraulic relief valve

新型高压水压数字溢流阀的PLC控制及其特性

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development of a new digital electro-hydraulic relief valve

新型电液数字溢流阀的开发研究

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properties of pilot-operated water hydraulic relief valve with different structure parameters

结构参数对先导式纯水溢流阀性能的影响

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experimental investigation and dynamics simulation for a new-type direct-acting water hydraulic relief valve

一种新型水压直动式溢流阀的动态性能仿真和实验研究

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in order to solve this problem, a new pilot operated water hydraulic relief valve with membrane sealing is developed in this dissertation.

本文研制了一种带膜片密封的先导型水压溢流阀，较好地解决了这一难题。

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a kind of pilot-operated water hydraulic relief valve was invented and its principle was presented.

介绍了所研制的先导式纯水溢流阀及其工作原理。

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numerical simulation of water hydraulic relief valve

先导式纯水溢流阀的动态特性仿真

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study on cavitation resistive property of water hydraulic relief valve with different piston structure

阀芯结构对纯水溢流阀抗汽蚀特性的影响研究

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Therefore, It has great practical value that developing excellent performance, long life and high pressure water hydraulic relief valve.

所以，研制出性能优良、使用寿命长以及高压力的水压阀将具有较大的实用价值，这主要从新型工程材料、结构优化设计以及加工工艺等方面入手。

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fault diagnosis of hydraulic relief valve using time series analysis

应用时间序列分析的液压溢流阀故障诊断法

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The experiments were carried out with different supply pressure, flow rate and the pilot-operated water hydraulic relief valve opening on.

在不同压力、阀口开度等多种条件下，对先导式纯水溢流阀进行了试验研究。

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research on a new - type direct - acting water hydraulic relief valve

新型中高压水压溢流阀的研制

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it's certified by test that the developed water hydraulic relief valve has good static and dynamic performs.

通过试验证明，所研制的水压溢流阀具有良好的静态和动态性能。

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optimum dynamic stiffness of hydraulic relief valve

溢流阀动态刚度最优控制

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