Method and apparatus for packing rings
US8628092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2010 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/442
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal assembly for a turbomachine is provided. The turbomachine includes a stationary housing and a rotor rotatable about an axis. The seal assembly includes a plurality of arcuate packing ring segments disposed intermediate to the rotor and the stationary housing, and a plurality of inter-segment gaps disposed between the plurality of arcuate packing ring segments. The plurality of inter-segment gaps are inclined at a first angle from a radial axis of the rotor and inclined in a direction of motion of the plurality of arcuate packing ring segments. The seal assembly also includes a biasing member disposed intermediate to the stationary housing and the plurality of arcuate packing ring segments and coupled to both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.