| 摘要 |
PURPOSE: An air discharge system is provided to achieve improved efficiency of coolant flow by automatically discharging the air from the coolant circulation circuit. CONSTITUTION: An air discharge system comprises a water tank(210) for storage of coolant; a connection pipe(220) connected between the water tank and water pumps(260,270) of a generating system of a county electric bus so as to form a coolant circulation circuit; a circulation pump(230) mounted on the connection pipe in such a manner that the circulation pump operates by the power supplied from an external source and compulsorily circulates the coolant between the water tank and the water pump through the coolant circulation circuit; and an air discharge unit(240) for discharging the air from the coolant circulation circuit in accordance with the pressure of the coolant circulating through the coolant circulation circuit.
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