| 摘要 |
<p>An open center hydraulic control valve of the type useful in automotive vehicles and elsewhere, in which the valve directs fluid from an inlet to a sump via first and second parallel passages including, respectively, a first outlet to a left turn cylinder and a second outlet to a right turn cylinder and in which closure of the first passage includes controlled closure of flow from the inlet to the first outlet and also controlled closure of the flow from the first outlet to the sump to provide a controlled reduced assist and improved steering stability particularly in and near the straight-ahead low turning effort valve condition.</p> |
