Injection nozzle
AssigneeDelphi Technologies Holding S.arl
InventorsNoureddine Guerrassi, Laurent Doradoux, Christophe Garsi, Cyrille Lesieur
Life of this patent
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Abstract
An injection nozzle for injecting a fluid, the injection nozzle including a nozzle body and a nozzle hole defining a flow passage for fluid, the flow passage including passage walls and the nozzle hole having an inlet in fluid communication via the flow passage with an outlet wherein, the inlet is larger than the output and for at least one section through the inlet and outlet along the flow passage that the nozzle hole is defined, for all distances x within a substantial length of the flow passage, by the condition: |(dS/dx)|>45 microns/millimeter, where S=passage wall separation and x is the distance from the inlet.
Claims15
An injection nozzle for injecting a fluid, the injection nozzle comprising:
- a nozzle body defining a nozzle hole defining a flow passage for fluid, the flow passage comprising passage walls and the nozzle hole having an inlet in fluid communication via the flow passage with an outlet, wherein
- the inlet is larger than the output and for at least one section through the inlet and outlet along the flow passage the nozzle hole is defined, for all distances x within a substantial length of the flow passage, by the condition |(dS/dx)|>45 microns/millimeter, where S=passage wall separation and x is the distance from the inlet.
A fuel injector for an internal combustion engine comprising an injection nozzle, said injector nozzle comprising a nozzle body defining a nozzle hole defining a flow passage for fluid, the flow passage comprising passage walls and the nozzle hole having an inlet in fluid communication via the flow passage with an outlet, wherein the inlet is larger than the output and for at least one section through the inlet and outlet along the flow passage the nozzle hole is defined by the condition |(dS/dx)| is greater than 45 microns/millimeter for all values of x within a substantial length of the flow passage, wherein S=passage wall separation and x is the distance from the inlet.
Dependencies are inferred from the claim text.