The upper part of the needle valve has a shoulder. When the needle valve is closed, the distance between the shoulder and the lower end face of the injector body is the maximum lift of the needle valve. The size of the needle valve determines
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In order to realize the automatic control of cement vertical roller mill with multivariable, large time delay and nonlinear problems, a controller design method based on bang bang and fuzzy PID is proposed. It's to speed up tracking...
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It adopts self-developed modular solenoid valve driving power supply and excellent protection design, allowing long-term short circuit without damage. The installation of fuel tank filter improves the cleanliness of test oil and prolongs the service life of standard injector.
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