Electrical signal generating fuel injection valve

Electrical signal generating fuel injection valve having

• a housing (10, 13);
• a reciprocable needle valve element (11, 17) positioned in the housing;
• an induction coil (20) positioned to surround the needle valve element so that, upon movement of the valve element, the reluctance of the electromagnetic circuit including the induction coil will change, thereby generating an electrical operating response signal,
• said housing including an insert ring (62, 72) formed with a central opening (61, 71) and having a bottom wall (63, 73) therein, in which opening the coil (20) is retained,
• and comprising, in accordance with the invention,
• a holding sleeve (65) having a generally cylindrical, axially extending portion (66) and a radially inwardly extending flange (67) joined to said axially extending portion, fitted in the opening (61, 71) of the insert ring (62, 72),
• the induction coil being positioned within the cylindrical portion (66) of the holding sleeve and pressed against the bottom wall (63, 73) of the opening (61, 71) by said flange (67).