FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to fuel devices of internal combustion engines. Proposed fuel injector control device contains metering valve including valve body with seat surface for injector control rod, and control chamber arranged in one axis with seat surface. Control chamber communicates with drain chamber through drain channel. Rod has thrust part whose displacement is limited by end face surface of seat surface for temporary closing of control chamber. Fuel pressure feed channel communicates with area formed by seat surface adjoining end face surface. Thrust part is made with surface in form of truncated cone getting into contact with part of end face surface made in form of truncated cone, said part in form of truncated cone adjoining control chamber having conicity equal to that of surface in form of truncated cone. EFFECT: improved reliability. 4 cl, 2 dwg
