Strip brush seal
US7201378B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | May 25, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | May 25, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3292
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A primary technical goal of this strip brush seal device is to prevent friction of a lifting portion of a seal portion against the circumference of a rotary shaft and to improve the seal capability thereof. In the strip brush seal device, each seal strip in a seal portion forms a stoppage portion in the radially outward portion thereof and a lifting strip in the radially inward portion thereof wherein the lifting strip is inflected toward the rotational direction of the rotary shaft at a second angle (θ) to the tangential direction of the circumference of the rotary shaft and the second angle (θ) is in the range of from 0 to 40 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.