| 摘要 |
An embodiment may have a stationary valve seat having a predefined surface and having at least one protruding portion, and a moveable plunger assembly having an end surface and having a plunger seal. In a closed position the predefined surface of the stationary valve seat substantially contacts the end surface of the moveable plunger assembly, and at least one protruding portion of the stationary valve seat engages the plunger seal. This embodiment may accurately determine and maintain plunger location and valve stroke length through two mechanisms, precise location of the sealing surface, and absolute location of plunger armature after compression of valve seal. |
