Valve, especially control valve for fuel return in injection conductor of combustion engine, having adjustable plot for limiting valve pestle, which engages with positioning drive and with spring package

摘要

The valve comprises a valve pestle (2) which releases a larger valve cross-section (13) with increasing lift, and which is activated by an electro-magnetic coil (6) against the force of a valve spring (29). A spring package (9) is provided for a variable adjustment of the valve cross-section, comprising at least two springs (18,19) arranged in an axis direction of the valve pestle. The adjustment path of the valve pestle is limited through an axial adjustable plot (5) which engages with a second positioning drive (7), and with the spring package.