| 摘要 |
PURPOSE: A controlling device for temperature of engine oil is provided to prevent odor caused by overheat and generation of bubble through automatically controlling temperature of the engine oil in testing a valve train. CONSTITUTION: An oil pump(66) is operated for circulating oil while operating an oil heater. Herein, oil pressure is controlled by using first and second opening and closing valves(68,72). Herein, the second opening and closing valve is used to adjusting the oil by bypassing. A first temperature sensor is installed in an oil heater, and a second oil temperature sensor(70) is installed at an engine oil inlet of a cylinder head(38) side. Temperatures measured by the sensors used for interlocking electric relays to control temperatures of the oil heater to be 130deg.C and engine oil to be 100deg.C. An oil heater tank is separated into first, second, and third chambers while deviating through holes on first and second separate walls. Therefore, generation of bubble and overheat caused by temperature of oil are prevented. The bubbles are collected at an upper portion of the oil heater tank. Then, the oil is supplied through an oil strainer.
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