| 摘要 |
PURPOSE: A radiator for repressing cavitation of a water pump is provided to improve cooling performance of an engine and a vehicle by suppressing cavitation generated in the water pump by keeping the pressure of coolant supplied through the radiator to the water pump higher. CONSTITUTION: In a radiator(30) having a coolant inlet port(22), a coolant outlet port(24), and a tube(26) having a passage for flowing coolant, a partition(32) is installed at the side of the tube. An upper end of the partition is contacted with an upper surface of the radiator and a lower end is extended same as a lower end of the tube. The partition forms a storage space(36) between lateral walls of the radiator. The lower part of the storage space communicates with the coolant outlet port. A vent hole(34) is formed on the upper side of the partition. An upside of the radiator that contacts with the upper end of the partition has an inclined surface(39). A radiator cap(38) connected with the storage space is disposed on the outer surface of the end of the inclined surface.
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