Seal with stacked sealing elements
US8641045B2 · kind B2 · utility
50Cited by
34References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2011 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Jul 2, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hybrid seal for sealing the circumferential gap between a first machine component and a second machine component comprises at least one shoe extending along one of the machine components in a position to create a non-contact seal, at least one spring element connected between one of the machine components and the shoe(s) and a stack of sealing elements located within a slot formed in the shoe(s), wherein a primary seal and secondary seal of the circumferential gap is created by the shoe(s) in cooperation with the spring element(s) and sealing elements, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.