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    • 5. 发明公开
    • Electronically controlled continuous lubricating oil replacement system
    • Elektronische Steueranlage zum kontinuierlichenÖlwechseln
    • EP0793005A1
    • 1997-09-03
    • EP97102021.9
    • 1997-02-08
    • CUMMINS ENGINE COMPANY, INC.
    • Graham, John P.Roettgen, Leslie A.Carver, Donald P.Wang, Jerry C.Colin, Black I.
    • F01M11/04
    • F01M11/0458F01M2011/0466F01M2011/0475F02D41/3005F16N2230/02
    • An improved method and system for automatically continuously replacing an engine's used lubricating oil with fresh lubricating oil throughout operation based on engine operating conditions is disclosed. The present system includes an injection control device for injecting small amounts of used lube oil into the engine's fuel system and an auxiliary flow control device for directing controlled quantities of fresh oil into the engine's lube oil system. An electronic controller is provided to vary the amount of used lube oil injected into the oil system based on the severity of engine operation. The process periodically determines an engine operating severity value, i.e. fuel consumption value, for an interval of engine operation and calculates a base line quantity of oil for injection based on the current fuel consumption of the engine during the current interval. The system also includes a diagnostic process for maintaining the engine's oil sump at a proper level while monitoring various components and parameters of the system and providing an indication of any abnormal condition. The system maintains the quality of the engine lube oil at a level necessary to provide optimal engine protection at all engine operating conditions while also maintaining the oil concentration in the engine's fuel at an acceptable level.
    • 公开了一种改进的方法和系统,用于基于发动机操作条件在整个操作中自动连续地更换具有新鲜润滑油的发动机使用的润滑油。 本系统包括用于将少量使用的润滑油注入发动机燃料系统的喷射控制装置和用于将受控量的新鲜油引导到发动机的润滑油系统中的辅助流量控制装置。 提供电子控制器以根据发动机操作的严重性来改变注入到油系统中的使用的润滑油的量。 该过程周期性地确定发动机操作间隔的发动机操作严重性值,即燃料消耗值,并且基于当前时间间隔内的发动机的当前燃料消耗来计算用于喷射的油的基线量。 该系统还包括用于将发动机的油底壳保持在适当水平的诊断过程,同时监测系统的各种部件和参数并提供任何异常状况的指示。 该系统将发动机润滑油的质量保持在所有发动机运行条件下提供最佳发动机保护所必需的水平,同时将发动机燃料中的油浓度维持在可接受的水平。