| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent rotation of a spool without incorporating a dedicated member for prevention of rotation of the spool into a spool valve in which an inflow-side channel is formed as a curved channel.SOLUTION: When an upstream side with respect to a bent location of a curved channel 7 serves as a first channel 7a and a downstream side with respect to the bent location serves as a second channel 7b, an area ratio between the first and second channels 7a and 7b in the case where running torque applied to the spool 4 becomes small is determined by a CFD analysis. The curved channel 7 is formed in such a manner that an area ratio becomes the area ratio between the first and second channels 7a and 7b, which is determined by the CFD analysis.</p> |
