| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling system of an internal combustion engine separating air from cooling liquid and venting air accumulated at bent portions of piping with a simple construction. SOLUTION: An engine hose 20, a first radiator hose 22 and a second radiator hose 23 are connected in a bent manner through a three-way branch pipe joint 21, and an engine hose 24, a first radiator hose 26 and a second radiator hose 27 are connected in a bent manner through a three-way branch pipe joint 25. The three-way branch pipe joints 21, 25 are formed with neck portions 43, 47 having openings 43a, 47a for air vent, the openings 43a, 47a are opened during filling operation of cooling liquid and air separated from the cooling liquid is discharged to the outside through the openings 43a, 47a of the three-way branch pipe joints 21, 25. COPYRIGHT: (C)2009,JPO&INPIT
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