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Leak detection method for electrohydraulic injectors of diesel engines in operation

机译：柴油发动机电液喷射器泄漏检测方法

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摘要

Modern automobiles equipped with an accumulator fuel-delivery system can fulfill the most demanding operational and ecological requirements. However, when fuel-delivery components (predominantly, electrohydraulic injectors) break down, it is difficult to analyze their faults. Therefore, studies aimed to decrease diagnosis time, enhance informativity and accuracy and develop methods for continuous injector's health control, and fault prediction are topical. The issue is lacking data on the parameters of common rail injector, return line leaks. It makes it difficult to identify extreme conditions of accumulator fuel-delivery system's injectors. The research alms to determine the relations between injector's conditions and leakage parameters and to develop methods for identifying individual leaks in order to localize the injector's faults. The research methods are a set of analytical and experimental researches using existing analytical approaches, tools and equipment and special methods and devices. The research results are dependencies of Common Rail injectors' conditions on the parameters of individual leaks, methods for determining the parameters of individual common line leaks, equipment applied for implementation of these methods.
机译：配备蓄能器燃料输送系统的现代汽车可以满足最苛刻的运营和生态需求。但是，当燃料输送组件（主要是电动液压喷射器）分解时，难以分析其故障。因此，旨在降低诊断时间，提高信息性和准确性以及开发连续注射器的健康控制的方法，故障预测是局部的。该问题缺乏关于公共导轨注射器参数的数据，返回线路泄漏。它使得难以识别蓄能器燃料输送系统的注射器的极端条件。研究领域，以确定注射器条件和泄漏参数之间的关系，以及开发用于识别单个泄漏的方法，以便定位注射器的故障。研究方法是一系列使用现有的分析方法，工具和设备以及特殊方法和设备的分析和实验研究。研究结果是普通轨道注射器对单个泄漏参数的条件的依赖性，用于确定各个公共线路泄漏参数的方法，用于实施这些方法的设备。

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