Injector for gaseous fuel
AssigneePhinia Delphi Luxembourg Sarl
InventorManfred Kolkman
Life of this patent
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Abstract
A fuel injector suitable for gaseous fuels comprises an injection nozzle having a tip region that is shaped to define a valve seat that extends about a central outlet opening and an outward opening injection needle slidably received in the injection nozzle. A nozzle cap is received over the tip region of the injection nozzle, wherein the tip region and the nozzle cap are configured to define an thermal barrier layer between them to reduce thermal transfer. The nozzle cap is releasably clipped onto the tip region. It comprises a slot and is configured to be compressible in a radial direction so as to reduce its outer diameter.
Claims11
A fuel injector suitable for gaseous fuels, comprising:
- an injection nozzle having a tip region that is shaped to define a valve seat that extends about a central outlet opening;
- and
- an outward opening injection needle slidably received in the injection nozzle;
- wherein the injection nozzle further includes a nozzle cap that is received over the tip region of the injection nozzle, wherein the tip region and the nozzle cap are configured to define a thermal barrier layer between them to reduce thermal transfer;
- wherein the nozzle cap and the tip region of the injection nozzle are configured so that the nozzle cap is releasably clipped onto the tip region;
- wherein the nozzle cap is configured to be compressible in a radial direction so as to reduce its outer diameter;
- and
- wherein the nozzle cap comprises a first end and a second end, and an axial slot that extends from the first end to the second end.
Dependencies are inferred from the claim text.