| 摘要 |
<p>A pressure control valve has a non-uniformly tapered valve bore (14) that has an increasing diameter as it extends downstream. An interface angle ( alpha ), defined in part between a valve ball (16) and the valve bore (14) in the area of the smallest gap between them, increases as the valve ball (16) is increasingly displaced away from a valve seat of the valve bore (14). <IMAGE></p> |
