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1运行农用柴油车液压系统中的工作液体,是在液压元件(包括管道)的容腔内流动或暂存的,循环的工作液体理应限于在规定的容腔内,然而由于压力、间隙等种种原因,有部分液体超过容腔边界流出,液体的“越界流出”现象称为泄漏。泄漏分为内泄漏和外泄漏。内泄漏是指液压元件内部有少量液体从高压腔泄漏到低压腔,如液压传动中油液从高压腔向低压腔的泄漏;从换向阀内压力通道向回油通道的泄漏等。外泄漏是指少量液体从元件内部向外
1 running agricultural diesel engine hydraulic system of working fluid is in the hydraulic components (including pipes) in the cavity of the flow or temporary storage, circulating working fluid should be limited to the provisions of the cavity, but due to pressure, clearance and other species The reason is that some of the liquid flows out of the cavity boundary and the liquid’s “out of bounds” is called a leak. Leakage is divided into internal leakage and external leakage. Internal leakage refers to the hydraulic components within a small amount of liquid leakage from the high pressure chamber to the low pressure chamber, such as hydraulic transmission fluid from the high pressure chamber to the low pressure chamber leakage; from the valve to the pressure channel back to the oil passage leakage. External leakage is a small amount of liquid from the inside to the outside of the component