| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching valve that can downsize a valve body and reduce manufacturing cost.SOLUTION: A fail-safe valve 82 comprises a sleeve 85 and a spool 86 provided in the sleeve 85 so as to be able to be displaced between a normal position and a fail-safe position. When the spool 86 is located at the normal position, a second input port 90 is closed, and a first input port 89 communicates with an output port 93 via a first inside oil passage 96. When the spool 86 is located at the fail-safe position, the first input port 89 is closed, only an opening part 98 of the second input port 90 is opened, the rest of the second input port 90 is closed, and the opening part 98 communicates with the output port 93 via a second inside oil passage 97.SELECTED DRAWING: Figure 5B |
