| 摘要 |
A fuel injector, especially for the direct injection of fuel into a combustion chamber of an internal combustion engine has an actuator which is in operative connection with a valve needle, the valve needle having a valve-closure member at its spray-off end, which cooperates to form a sealing seat together with a valve seat surface which is formed on a valve seat element. Valve-closure member reaches through a swirl element which is positioned on a flow-supply side end face of valve seat element, swirl channels being formed in swirl element. The valve seat element has a ring-shaped elevation on the flow-supply side end face facing the swirl element.
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