Bearing assembly material reduces air leakage in gas turbines

• Book ID: 104376957
• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 262 KB
• Volume: 2001
• Category: Article
• ISSN: 1350-4789
• DOI: 10.1016/s1350-4789(00)90004-7

✦ Synopsis

The subject of this invention is an apparatus and method for sealing a rotating shaft in a housing containing a fluid, such as the drive-shaft used in a fluid-conveying pump. In particular, it relates to an apparatus and method for cooling a seal (that uses the fluid conveyed by a pump) to improve the performance of the seal. Various types of pumps are used in fluidtransportation systems to develop and maintain a desired amount of flow energy in the fluid. Many of these pumps require, for their operation, at least one rotatable shaft to drive a mechanical energy-transfer device such as a piston, impeller or gear. Typically, the rotational power (torque) transmitted to the shaft is generated by a motor located away from the pump housing. This means that part of the shaft necessarily extends outside the housing through, for example, a bore in the housing wall, for direct (or indirect) linkage to the