To provide a flow channel switching mechanism in which sealing performance is improved.
A flow channel switching mechanism 1, which switches a flow direction of a fluid flowing in a flow passage, includes: a switching part 4 which is provided in the flow passage to switch the flow direction of the fluid; a shaft part 3 which is coupled with the switching part 4; a first bearing part 7 which supports the shaft part 3 rotatably; and a seal part 5 which is provided integrally with the shaft part 3 on the outer circumference of the shaft part 3, contacts with the first bearing part 7, and seals between the shaft part 3 and the first bearing part 7. The seal part 5 includes a first pressure receiving part 5a, which receives a force for pressing the seal part to the first bearing part 7 side from the fluid.
| JPH0680839U | 1994-11-15 | |||
| JPH0465916U | 1992-06-09 | |||
| JP2004353695A | 2004-12-16 | |||
| JPH09296867A | 1997-11-18 | |||
| JPH0680839U | 1994-11-15 | |||
| JPH0465916U | 1992-06-09 |
Masaaki Iida
Ryota Tanaka