Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings

摘要

The valve has a valve seat body (16) with a fixed valve seat (29), and a valve closing body (7) that works together with the seat, where the valve closing body is axially movable along a valve longitudinal axis (2). A spray nozzle unit is arranged downstream to the seat and is implemented as a disk-shaped nozzle (23) with multiple injection openings, where the nozzle is designed as a multi-fan jet nozzle. A groove-shaped flow channel is formed downstream to an outlet (27) in the valve seat body, where the flow channel opens to the disk-shaped nozzle and extends downstream to the openings.