Turbocompressor provided with an abradable coating
US4536127A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1984 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | May 1, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/936
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improvement for a turbocompressor having a rotor, a stator and a casing, and an abradable coating provided between the rotor blades and the casing, or between the stator vanes and the rotor, such that the blades make initial contact with the coating to abrade the coating and produce a minimal clearance. The abradable coating is formed on a member having a first layer of carbon-fiber reinforced graphite adapted for attaching the coating member to the casing or rotor, and a second layer of graphite in the region in which the blade tips are intended to rub. The second layer may optionally contain, preferably radially oriented brush-type graphite-fiber reinforcements, or be entirely composed thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.