Fuel injection valve especially for direct injection combustion engines has two flow determining gaps between the valve closing body and valve seat

摘要

A fuel injection valve, especially for direct injection combustion engines, comprises a valve needle (3) and body (4) closing on a valve seat (6) and an injection opening (7) with a gap (38) whose size depends on the position of the body and governs the flow. A second flow-determining gap (39) lies upstream of the first.