| 摘要 |
A valve comprises a valve member (8) carried by a displaceable element (12). A spring (22) biases the valve member (8) towards a closed position, but the valve is held open by a retaining element (36) through which the displaceable element (12) extends. The retaining element (36) is tilted, and so grips the displaceable element (12). The retaining element (36) is the armature of a solenoid (32), which, when energised, causes the retaining element to move into a position in which the displaceable element (12) is released to allow the valve to close. |
