Patent ID: 6330981
Filing Date: 2001-12-18
Classification: F02M

Abstract:
A fuel injection valve for an internal combustion engine, comprising:an armature assembly including an injector needle reciprocable between a closed position and an open position:a needle seat for receiving the injector needle in the closed position, the needle seat including a central opening therethrough;a discharge orifice disk disposed downstream of the needle seat, the discharge orifice disk having at least one opening directing fuel toward a desired location; anda turbulence generator disposed upstream of the discharge orifice disk, the turbulence generator including:a first turbulence generator disk having a central opening smaller than the central opening in the needle seat, the first turbulence generator disk disposed downstream of the needle seat, a perimeter of the central opening in the first turbulence generator disk is angled upstream from a remainder of the first turbulence generator disk, anda second turbulence generator disk having a central opening at least as large as a diameter of a circle containing the at least one opening in the discharge orifice disk, the second turbulence generator disk being disposed downstream of the first turbulence generator disk.