Device for sealing orifices on nozzle of fuel injector for autofrettage process
AssigneeCaterpillar Inc.
InventorsRahul N. Gami, Marion B. Grant, John S. Miller, JR.
Life of this patent
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Abstract
A device for sealing one or more orifices on a vessel for pressurizing fluid is provided. The device includes an outer surface and an inner surface. The inner surface includes one or more substantially semi-spherical protrusions corresponding to the orifices. The protrusions are configured to contact with edges of the orifices and seal the orifices.
Claims20
A device for sealing one or more orifices on a vessel for pressurizing fluid, the device comprising:
- an outer surface;
- and
- an inner surface including:
- one or more substantially semi-spherical protrusions corresponding to the orifices, the protrusions configured to contact with edges of the orifices, and seal the orifices.
A device for sealing one or more orifices on a vessel for pressurizing fluid, the device comprising:
- an outer surface;
- and
- an inner surface including:
- one or more substantially semi-cylindrical protrusions corresponding to the orifices, the protrusions configured to contact with edges of the orifices, and seal the orifices.
A method of sealing one or more orifices on a vessel for pressurizing fluid, the method comprising:
- positioning an outer surface of a device to rest on an autofrettage tool;
- positioning an inner surface of the device to face the vessel;
- positioning one or more protrusions disposed on the inner surface to align with the orifices;
- contacting the protrusions with edges of the orifices;
- plastically deforming the protrusions through a force from the autofrettage tool on the outer surface;
- and
- sealing the orifices.
Dependencies are inferred from the claim text.