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US 2003/0118144 A1Published application
Jet pump slip joint labyrinth seal method
AssigneeGeneral Electric Company
InventorsJohn Geddes Erbes, Martin Rudy Torres
Life of this patent
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Abstract
Methods for cutting a labyrinth seal in a nuclear reactor jet pump assembly are described. In one embodiment, the method includes removing an irradiated jet pump inlet mixer from the jet pump assembly, positioning the jet pump inlet mixer underwater, and cutting at least one circumferential groove in an inlet mixer outside surface.
Claims30
A method for cutting a labyrinth seal in a nuclear reactor jet pump assembly, said method comprising:
- removing an irradiated jet pump inlet mixer from the jet pump assembly;
- positioning the jet pump inlet mixer underwater;
- and
- cutting at least one circumferential groove in an irradiated inlet mixer outside surface.
1 more element
A method for cutting a labyrinth seal in a nuclear reactor jet pump assembly, said method comprising:
- removing an irradiated jet pump inlet mixer from the jet pump assembly;
- positioning at least a portion of a cutting system in a jet pump diffuser;
- and
- cutting at least one circumferential groove in a jet pump diffuser inner surface.
1 more element
Dependencies are inferred from the claim text.