needle valve

This paper briefly analyzes the accident of failure of fuel oil injection of single cylinder in the main engine,which caused by needle valve sticking in the injector pump.

分析了某船主机由于喷油泵针形阀故障造成单缸停油的事故,并提出应对措施,以期同行们能从中吸取教训,避免类似事故发生。

Forming crucial technology of needle-like famous teas by steaming;

蒸青针形名茶造型关键技术

The effect factors of needle shape nozzle's output power have many to do with the choice of the nozzle structure and jet pressure.

讨论了针形喷嘴结构、压力等改变对其输出功率的影响 ,在实验的基础上详细分析了诸因素——喷嘴的直径、长径比、入口角与出口扩散角对喷嘴输出功率的作用结果 ,从而获得最佳输出功率的喷嘴结构参数。

A series of experiments were carried out to investigate the broken length and the size of broken liquid drop, aimed at the main structural parameter of needle shape nozzle.

本文针对针形喷嘴的主要结构参数,对射流破碎长度和破碎液滴的尺寸进行了一系列的实验研究,得出了针形喷嘴的主要几何参数与射流破碎长度之间的关系,以及射流破碎后的液滴情况,为针形喷嘴的设计提供了依据。