| 摘要 |
PROBLEM TO BE SOLVED: To provide fluidic channel structure of an internal combustion engine enabling an oil cooler to be smaller in size without a complicated fluidic channel structure placed inside the internal combustion engine body. SOLUTION: This fluidic channel structure for an engine 1 includes an oil cooler 7, a lubricating oil passage and a cooling water passage. The oil cooler 7 includes: a core section 72 for exchanging heat; and a flange section 73 projecting from the periphery of the core section 72. The core section 72 is formed with a pair of lubricating oil communication ports 74a and 74b and a pair of cooling water communication ports 75a and 75b. The flange section 73 is formed with a pair of through-holes 76a and 76b, and pipes P1 and P2 for cooling water are arranged in the pair of through-holes 76a and 76b. A surface of a bottom 21a of an oil pan 2, to which the oil cooler 7 is to be fitted, is formed with a first concave groove 25a and a second concave groove 25b respectively connecting the pair of cooling water communication ports 75a and 75b to the pair of through-holes 76a and 76b. COPYRIGHT: (C)2011,JPO&INPIT
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