Flow machine, slide ring seal thereof, body part for said slide ring seal and method of fastening said slide ring seal to said flow machine
US8240673B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jun 29, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3464
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a new kind of a mechanical seal, a so called slide ring seal, which is used, for example, for sealing a shaft space of a centrifugal pump in relation to a pumping space thereof. The present invention especially relates both to centering said mechanical seal and/or fastening said mechanical seal to the casing of said centrifugal pump and a body part used for the attachment. A characterizing feature of a mechanical seal in accordance with the present invention, comprising at least one rotary slide ring unit (24, 24′, 24″), a body part by means of which said seal is attached to said casing (16), and at least one either separate counter ring unit (42, 42′) or a counter ring unit (42, 42′) stationarily attached to said body part, is that said body part (40, 40′) is provided with inclined fastening means (52), by means of which the body part (40, 40′) is tightened to the casing both axially and radially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.