机械式调速器的工作与调速特性分析

ANALYSIS ON THE PRINCIPLE AND GOVERNING CHARACTERISTIC OF MECHANICAL SPEED GOVERNOR

柴油机工作时,喷油泵、调速器、柴油机三者构成一个自动调节系统。当负荷改变时,将引起柴油机自身某些参数发生相应的变化;本文前一部分对机械式调速器的工作原理、系列、工作指标做了重点叙述,使我们对机械式调速器有一个总体认识;本文后一部分以4125A柴油机BF4Ⅱ90Y喷油泵匹配TⅡ型全程式调速器和6102Q柴油机A型泵匹配RAD型两极式调速器进行试验,将试验结果绘制成调速特性曲线图2、图3,对上述两种调速器进行特性分析。

In diesel engine,the fuel injection pump,the speed governor and the engine constitute an automatic regulating system.The parameters of diesel engine vary correspondently when the load change.The front part of this article focuses on the principles,series and indexes of the mechanical speed governor which gives a general understanding over the mechanical governor.The latter part gives experiments on 4125A diesel engine with BF4Ⅱ90Y fuel injection pump matching T Ⅱ type variable speed governor and 6102Q diesel engine with A type pump matching RAD type maximum-minimum speed governor.And the test results were drawn to curve 2 and curve 3 and undergone characteristic analysis.