Patent ID: 7900604

Claim:
A nozzle body for a fuel injector, said nozzle body comprising: a nozzle, including: at least one injection hole at a first section of said nozzle; a nozzle sealing surface at a second section of the nozzle spaced from the first section; and a first bore disposed between the first and second sections of the nozzle; a movable needle having a portion disposed within the first bore; a cage having an inner surface defining a second bore; a biasing mechanism disposed within said second bore that biases said needle towards said at least one injection hole of said nozzle in a closed position; and a dampening stop pin, including: a first portion upon which said biasing mechanism applies its biasing force, a second portion disposed adjacent said nozzle sealing surface; a third portion disposed adjacent said inner surface of said cage; a shim; and a cylindrical pin, wherein said shim is associated with a first end of said cylindrical pin and said first portion is a associated with a second end of the cylindrical pin; wherein said second portion is spaced apart from said nozzle sealing surface at a first distance between approximately 180 microns and approximately 320 microns when said needle is in the closed position, and wherein said third portion is spaced apart from said inner surface of said cage at a second distance between approximately 40 microns and approximately 100 microns.