PLASTIC-METAL COMBINATION AND FUEL INJECTION VALVE WITH A PLASTIC-METAL COMBINATION

摘要

PLASTIC-METAL COMBINATION AND FUEL INJECTION VALVE WITH A PLASTIC-METAL COMBINATION The invention relates to a fuel injection valve, especially for fuel injection systems of internal combustion engines. Said valve is characterized by a magnetic circuit comprising a core (2), a solenoid (1), an armature (27), and a mobile valve needle (19) having a valve closing element (21) that interacts with a stationary valve seat (30), said valve seat (30) being formed on a valve seat element (29), and a valve seat support (16) into which the valve seat element (29) is introduced. The outer periphery of at least one metal component of the fuel injection valve has a serrated structure (63a-f) for establishing a solid connection to a corresponding plastic component. The connecting piece (51), the valve seat support (16), the coil body (3) and a connecting tube (23) of the valve needle (19) can be made of plastic. The fuel injection valve is especially suitable for use in fuel injection systems of mixture-compressing spark ignition engines.