Invention Application
WO2004101986A9 FUEL INJECTION VALVE 审中-公开
燃料喷射阀

FUEL INJECTION VALVE
Abstract:
The invention relates to a fuel injection valve for fuel injection systems of internal combustion engines. The fuel injection valve comprises an electromagnetic actuating element with a solenoid (1), an inner pole (2) and with an outer magnetic circuit component (5), and comprises a moving valve closing body (19), which interacts with a valve seat (16) assigned to a valve seat body (15). The valve seat body (15) and the inner pole (2) are placed inside an inner opening (11) of a thin-walled valve sleeve (6), and the solenoid (1) and the outer magnetic circuit component (5) are placed on the outer periphery of the valve sleeve (6). The valve sleeve (6) comprises an outside section (12) and comprises a bottom section (13) at the downstream end of the valve sleeve. This bottom section extends in a manner that is largely perpendicular to the otherwise axial extension of the valve sleeve (6) at an axial distance to a spraying perforated disk (21). A cavity (60) is formed between the fuel spraying perforated disk (21) and the bottom section (13) of the valve sleeve (6). This cavity exerts a capillary action in a radial outward direction onto the fuel exiting from the at least discharge opening (27).
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