| 摘要 |
The invention relates to a valve assembly for an injection valve, comprising a valve body (14) including a central longitudinal axis (L), the valve body (14) having a cavity (18) with a fluid inlet portion (42) and a fluid outlet portion (40), and a chamber (26), with an electro-magnetic actuator unit (36) being arranged in the chamber (26), and a valve needle (20) axially movable in the cavity (18), the valve needle (20) preventing a fluid flow through the fluid outlet portion (40) in a closing position and releasing the fluid flow through the fluid outlet portion (40) in further positions. The valve needle (20) is designed to be actuated by the electro-magnetic actuator unit (36). A bellows (46) is arranged between the valve body (14) and the valve needle (20) and is sealingly coupled to the valve body (14) and to the valve needle (20). The bellows (46) is designed to prevent a fluid flow between the cavity (18) and the chamber (26). Furthermore, the invention relates to an injection valve (10) comprising the valve assembly (12). |
