Back to results
US 10,697,545 B2Granted
Packing cups manufacturing
AssigneeNuovo Pignone S.p.A.
InventorsCarmelo Maggi, Tognarelli Leonardo, Alessio Capanni, Jan Wojnar
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a packing cup for a hyper-compressor is described. The method comprises the following steps: providing an inner disc (25), having opposed first front face (25X) and second front face (25Y), a central axial hole (18) and at least one lubrication-oil duct (23); autofrettaging the lubrication-oil duct (23); after autofrettaging, removing a thickness (D) of the inner disc on both faces thereof.
Claims10
A method of manufacturing a packing cup for a hyper-compressor, the method comprising the following steps:
- providing an inner disc, having opposed first front face and second front face, a central axial hole, and at least one lubrication-oil duct;
- said axial hole and said at least one lubrication-oil duct extending from said first front face to said second front face;
- autofrettaging said at least one lubrication-oil duct;
- after autofrettaging, removing a thickness of said inner disc on both said first front face and said second front face;
- and
- after removing the thickness of said inner disc on both said first front face and said second front face, shrink-fitting said inner disc and an outer disc.
3 more elements
Dependencies are inferred from the claim text.