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US 2020/0347679 A1Published application
Boring assembly and associated boring method
AssigneeFramatome
InventorMarc LACROIX
Life of this patent
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Abstract
A boring assembly extends along a main axis and comprises a boring head comprising at least one first nozzle; at least one second nozzle, the or each second nozzle being different from the or each first nozzle; a first delivery device configured to deliver a jet of abrasive-free water at a pressure comprised between 2000 bar and 4000 bar to the at least one first nozzle; and a second delivery device configured to deliver a jet containing at least one abrasive material at a pressure comprised between 2000 bar and 6000 bar to the at least one second nozzle.
Claims16
1-13 (canceled)
A boring assembly extending along a main axis and comprising:
- a boring head including:
- at least one first nozzle;
- at least one second nozzle, the at least one second nozzle being different from the at least one first nozzle;
- a first delivery device configured to deliver a jet of abrasive-free water at a pressure of between 2000 bar and 4000 bar to the at least one first nozzle;
- and
- a second delivery device configured to deliver a jet containing at least one abrasive material at a pressure of between 2000 bar and 6000 bar to the at least one second nozzle.
3 more elements
Dependencies are inferred from the claim text.