Deposit control in fuel injector nozzles

  • US 6,923,387 B2
  • Filed: 04/20/2001
  • Issued: 08/02/2005
  • Est. Priority Date: 04/20/2000
  • Status: Active Grant
First Claim
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1. An injector nozzle for a fuel injected internal combustion engine, said injector nozzle including a port having a valve seat surface and valve member having a seating surface, said valve member being movable relative to the port to respectively provide a nozzle passage between the valve seat surface and the seating surface for the delivery of fuel there-through or sealed contact there-between to prevent said delivery of fuel, the valve member including an outer valve surface located adjacent the seating surface and external to the port, wherein a sharp edge is provided on the valve member at the transition between the seating surface and the outer valve surface thereof, for controlling the formation of deposits at or adjacent an exit of the nozzle passage.

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