| 摘要 |
PROBLEM TO BE SOLVED: To provide an intra-pipe cooler as a reformed body of an assembly of heat conduction tubes and liquid chamber of a conventional intra-pipe cooler, in which the pump lifted liquid flows into the region where the heat conduction tubes in a cooler casing are arranged, thereby efficiently cooling a high-temperature engine cooling liquid from an engine.SOLUTION: An assembly 20 of heat exchanger tubes and liquid chamber formed by connecting an inlet side liquid chamber 21 with an outlet side liquid chamber 22 through a plurality of heat conduction tubes 23 is installed in the casing in such an arrangement that the pump lifted liquid 4 flows in the region surrounded by the heat exchanger tubes from the inlet side liquid chamber 21 to the outlet side liquid chamber 22, and a high-temperature cooling liquid from the engine is introduced to the inlet side liquid chamber, and heat exchange takes place between the high-temperature cooling liquid and the pump lifted liquid 4 while the high-temperature cooling liquid flows to the outlet side liquid chamber through the heat conduction tubes 23. In this intra-pipe cooler, the inlet side liquid chamber 21 has a side plate where the heat conduction tubes 23 are connected, and the inner end (arcuate face 21a) of that surface of the side plate which faces the outlet side liquid chamber 22 across the flow of the pump lifted liquid 4 is shaped as such a curved surface that the pump lifted liquid 4 easily flows into the region where the heat conduction tubes 23 are arranged. |
