Flow machine for a fluid having a radial sealing gap and a stationary wear ring
US9188134B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2011 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/0465
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flow machine 10 for a fluid shown contains a radial sealing gap (9) which is formed between stator parts (4, 4a, 4b) and a closed impeller (3) of the flow machine, with at least one wear ring (5) arranged in a stationary manner being provided at the sealing gap and having an inner side facing the impeller, an outer side and two axially spaced apart side surfaces. A concentrically extending recess (6) in the form of a radial gap or of a radial incision is formed in the wear ring (5), with the recess 6, starting from one of the side surfaces, extending in the axial direction over more than a fifth of the axial length of the wear ring and with the wear ring (5) being produced from metal, hard metal or a ceramic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.