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2. 发明申请

WO1995005532A2 FLUID LEVEL AND TEMPERATURE MONITOR AND ALARM SYSTEM 审中-公开
标题翻译：流体液位和温度监测和报警系统
公开(公告)号：WO1995005532A2
公开(公告)日：1995-02-23
申请号：PCT/US1994008815
申请日：1994-08-04
申请人： PROULX, Raymond, A.
发明人： PROULX, Raymond, A.
IPC分类号： F01P11/14
CPC分类号： G01F23/243 , F01P11/14 , F01P11/16 , F01P11/18 , F01P2025/30 , F01P2025/33 , F01P2025/70 , F01P2031/20 , F01P2031/22 , G01F23/242
摘要： An electronic detection system for accurately monitoring the coolant level and temperature of an internal combustion engine, utilizing a unit which may be installed within the cab of a vehicle to provide the operator with a visual and audible warning if the engine temperature starts to rise above its normal hottest operating temperature indicating an overheat condition, and/or when coolant level drops below a given level in the coolant reserve tank indicating a coolant loss problem or the need to replenish coolant due to evaporation, and/or a complete loss of engine coolant, thereby preventing damage that may be caused by overheating. In a particular embodiment of the invention, the overheat detection system comprises a heat sensor, e.g. thermistor, within a bolt which may be screwed directly into the engine head. In a further embodiment, an additional heat sensor, e.g., a thermistor or a heat responsive switch, positioned in the bottom radiator hose, is used in series with the engine head sensor. The circuitry used therewith is adjustable when installed to provide an alarm activation when the temperature is a few degrees above the hottest normal operating temperature of the individual engine in which they are installed. Thus, if the engine starts to overheat, an LED lights up and an audible alarm sounds. Further, a coolant level detector is also used to detect a drop in the coolant level and comprises two probes which may be installed horizontally in a side wall of the coolant reserve tank to provide a current path through the coolant present between the probes. Circuitry which includes an appropriate timing means is connected to the probes to warn the driver, by a visual LED indicator and/or by an audible alarm sound when the coolant level drops below a predetermined level. In a further embodiment, additional coolant probes may be installed in the top radiator hose previously to warn the driver by visual and/or audible alarm if there is a sudden and substantially complete loss of coolant.
摘要翻译：一种用于精确地监测内燃机的冷却剂水平和温度的电子检测系统，利用可以安装在车辆驾驶室内的单元，以便在发动机温度开始升高到其上方时向驾驶员提供视觉和听觉警告正常的最热操作温度表示过热状态，和/或当冷却剂液位低于冷却剂储备罐中给定的水平时，指示冷却剂损失问题或由于蒸发而补充冷却剂的需要和/或发动机冷却剂的完全损失，从而防止过热引起的损坏。在本发明的特定实施例中，过热检测系统包括热传感器，例如，在可以直接拧入发动机头部的螺栓内的热敏电阻。在另一个实施例中，与发动机头传感器串联使用位于底部散热器软管中的附加热传感器，例如热敏电阻或热响应开关。与其一起使用的电路可以在安装时调节，以便当温度比安装它们的单个发动机的最热的正常工作温度高几度时提供报警启动。因此，如果发动机开始过热，则LED亮起并发出声音报警。此外，还使用冷却剂液位检测器来检测冷却剂液位的下降，并且包括可以水平地安装在冷却剂储备箱的侧壁中的两个探针，以提供穿过探针之间存在的冷却剂的电流路径。包括适当的定时装置的电路连接到探头，以在冷却剂液位低于预定水平时通过可视LED指示器和/或听觉警报声来警告驾驶员。在另一个实施例中，额外的冷却剂探针可以预先安装在顶部散热器软管中，以通过视觉和/或听觉警报来警告驾驶员，如果存在突然且基本完全的冷却剂损失。

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