| 摘要 |
A fuel injector has a movable valve part (20), which for opening and closing of the valve cooperates with a stationary valve seat (27) which is formed on a valve seat element (26). A swirl disk (30) is situated downstream from the valve seat (27) and has a multilayer design. The fuel flowing through is imparted to a swirl component between at least one inlet area (65) and at least one outlet area (79). In a first swirl-generating plane (59) a swirl component is imparted to a first portion of the flow, while a second portion of the flow without swirl and independent of the first swirling portion of the flow is routed inside the swirl disk (30), and in a second swirl-generating plane (61) a swirl component is imparted only to the second portion of the flow. The fuel injector is particularly suitable for direct injection of fuel into a combustion chamber of an internal combustion engine having compression of a fuel/air mixture with spark ignition.
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