| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow channel switching mechanism which reduces leakage of a fluid.SOLUTION: A flow passage switching mechanism 1 includes: a case 2 which forms a flow channel through which a fluid flows; a shaft part 3 which extends in a direction of crossing the flowing direction of the fluid, is inserted in the case 2, and is supported rotatably by a bearing part 7; a switching part 6 which is provided in the flow channel, is coupled with the shaft part 3, rotates integrally with the shaft part 3, and switches the flowing direction of the fluid; a projection part 4, which is provided on the outer circumference of the shaft part 3 to restrict the movement of the shaft part 3 in the axial direction by contacting with the bearing part 7; and a seal part 9 which makes line contact with the projection part 4. |
