| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing structure for a heat exchanger using caps which make installation processing of the caps easy and prevent liquid leakage, and a heat exchanger which, by working in combination with a flow channel member which impedes deformation, prevents a space from forming between the cap and the flow channel member, thereby preventing liquid leakage. <P>SOLUTION: The heat exchanger H includes the tubular flow channel member 1, and caps 2 which are installed by being inserted with pressure into the openings on both ends of the flow channel member 1. The caps 2 are provided with a flow passage route 222 and diverging routes 271-278 for a heat medium to flow through, and engaging parts 23, 23b which are parts to be engaged with the heat exchanger H. The engaging part 23 has a larger radius than the inner diameter of the flow channel member 1, and recessed grooves 251, 252 are formed along the entire perimeter of the engaging part in the longitudinal direction of the circumference surface of the engaging part 23. The circumference surface of the engaging part 23 closely contacts an inner wall 12 of the flow channel member, and an open space 14 is formed between the recessed grooves 251, 252 and the inner wall 12 of the flow channel member. <P>COPYRIGHT: (C)2012,JPO&INPIT |
