Wear resistant piston seal
US10760686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Nov 25, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Aspects are directed to a tribological and creep resistant system configured to operate at temperature in excess of 750° C., comprising: a piston seal that includes a nickel base alloy, where the nickel base alloy includes a Ni3(Al,X) type precipitated phase in an amount greater than 40% by volume. Aspects are directed to a system comprising: a piston seal that includes a cobalt-based alloy. Aspects are directed to a method comprising: heat treating an ingot of a nickel base alloy that includes coarsening a precipitated phase to facilitate forging or wrought forming the ingot, machining the ingot to include a substantially flat surface, and processing the ingot to generate a piston seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.