OIL-COOLING DEVICE CAPABLE OF PREVENTING TEMPERATURE OF OIL FROM RISING EXCESSIVELY EVEN WHEN ENGINE IS DRIVEN AT HIGH SPEED

摘要

PURPOSE: An oil-cooling device is provided to maintain viscosity of oil by preventing the temperature of oil from rising excessively even when an engine is driven at high speed, to prevent a rate of breakdown, and to prevent bubbles from being produced in oil. CONSTITUTION: An oil-cooling device has a case(2) installed inside an oil pan(1). A coolant inlet(3) and a coolant outlet(4) for the inflow and discharge of a coolant are formed to the sides of the case, and an oil strainer(5) and an oil discharge port(6) for the inflow and discharge of oil are formed to the upper and lower sides of the case. Plural partitions(7) are formed inside the case, to make the oil cooled by the temperature of the coolant while the oil and the coolant flow via each different path. Flow pipes(8,9) are formed between the partitions to make the oil and the coolant flow via each different path. A temperature control valve(10), the opening degree of which is varied according to the temperature of the oil in the oil pan, is formed in the middle of the coolant outlet.