HEAT TRANSFER BODY AND HEAT EXCHANGER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a heat transfer body not only efficiently performing heat exchange between fluid flowing in the heat transfer body and the outside of the heat transfer body but also reducing an increase of pressure loss of fluid. SOLUTION: In this heat transfer body 1, a plurality of inner wall projections 4 are projected at fixed intervals on an inner peripheral wall of a heat transfer pipe 3 capable of making fluid flow at the inside. This heat exchanger is a multitube heat exchanger in which a plurality of the heat transfer bodies 1 are assembled at fixed intervals or a radiator incorporated type oil cooler having the heat transfer body 1 arranged in a heat exchange part. COPYRIGHT: (C)2004,JPO