| 摘要 |
<p>An actuator (15) exerts control force on a valve portion (21) of a precursor valve (23) that is provided with a closure portion. The clamping force on a main stage valve (35) is influenced by precursor valve. The pressure amount in a control chamber (57) is determined based on valve seat area (29) of a valve main portion. The valve main portion and the main stage valve are in force-transferring connection during an aperture movement of the main stage valve. An elastic portion of valve portion is axially extended to the adjacent area of the valve portion.</p> |
