| 摘要 |
<p>A hydraulic control valve apparatus including a valve body (2,2A,2B,2C) and a hydraulic control valve (4,5,6) that is disposed in the valve body in parallel to an upper horizontal surface of the valve body. The hydraulic control valve includes a spool (22), a biasing member (23) that biases the spool, and a damper chamber (R DA-4 ,R DA-5 ,R DA-6 ) that accommodates the biasing member. The valve body includes a drain hole (H DR-4 ,H DR-5 ,H DR-6 ) through which a pressurized oil is discharged from the hydraulic control valve, and a first communication passage (W 1 ,W 2 ,W 3 ) that allows fluid communication between the drain hole of the valve body and the damper chamber of the hydraulic control valve. The drain hole and the first communication passage are formed on the upper horizontal surface of the valve body.</p> |
