Patent ID: 7371063

Claim:
A hot channel injection molding nozzle comprising a nozzle body ( 2 ) including a mass flow channel ( 4 ) for a melt to be injected into a mold, said nozzle body ( 2 ) having a nozzle outlet opening ( 5 ) at one end thereof and, at the opposite end, an inlet opening ( 6 ) disposed at one side of the nozzle body ( 2 ), a valve needle ( 3 ) extending through the nozzle body ( 2 ) for controlling the melt flow through the outlet opening ( 5 ) and a valve needle guide sleeve ( 7 ) disposed in the nozzle body ( 2 ) and delimiting the mass flow channel ( 7 ) in the area of the inlet opening ( 6 ), with the valve needle ( 3 ) extending through the valve needle guide sleeve ( 7 ), the valve needle guide sleeve ( 7 ) being provided at the surface thereof with recesses ( 9 ) which form guide channels with the wall of the mass flow channel ( 4 ).