An abradable and anti-encrustation coating is described for a rotating fluid machine (10) of the type comprising a casing (12), in which a shaft (14) equipped with at least one rotor (16) having a series of circumferential vanes (18) is rotatingly assembled and at least one diffuser (20) integral with the casing (12). The outer edge of each circumferential vane (18) faces an annular surface portion (28) of the diffuser (20). The annular surface portion (28) of the diffuser (20) is at least partially covered with a coating which can be abraded by the outer edge of each circumferential vane (18), said abradable coating comprising of a first lower metal-based coating layer (30), applied on the annular surface portion (28) of the diffuser (20), and a second upper polymer-based coating layer (32), applied on the first lower metal-based coating layer (30).
https://app.acclaimip.com/pdf/Vx_l1yraEbxwH-Wyz9oRsBtX-Oa0SKEixRg4zVY/US20080241527A1
For more information or to license this innovation:
- Log In
to view the innovation's details
- Sign Up
with discount code "ECOS"
