ELECTROMAGNETIC METERING VALVE FOR FUEL NOZZLE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; fuel injection devices of internal combustion engines. SUBSTANCE: electromagnetic metering valve contains control chamber with outlet channel communicating with outlet chamber, outlet channel gate, first spring acting onto intermediate element made in form of rod for holding the gate in closed position, and electromagnetic to drive armature adapter to control said gate by means of rod. Armature is made in form of disk integral with bushing coaxial with rod and installed for sliding along rod. Second spring holds disk to thrust against rod being installed with preload between disk and ring belt of rod. Rod is provided with flange made for displacement inside swirl chamber located between control chamber and outlet chamber. Flange is used to stop rod. EFFECT: simplified design, improved reliability and quick response. 10 cl, 6 dwg