| 发明名称 | Fastening system for fan and shaft interconnection | ||
| 摘要 | A fan and shaft assembly for a turbofan gas turbine engine comprises a shaft and a fan. Sets of aligned throughbores are respectively of the shaft and the fan, at a junction between the shaft and the fan. Fastening systems are provided for the sets of aligned throughbores. Each fastening system comprises a sleeve received in one of the sets of aligned throughbores and sized to fit without play in the set of aligned throughbores. A head of the sleeve abuts a surface at the junction between the shaft and the fan. A fastener is inserted in the sleeve and extends beyond both ends of the sleeve to clamp the fan to the shaft, the fastener being loosely received in the sleeve. A method for replacing a component of a fastening system retaining a fan to a shaft is provided as well. | ||
| 申请公布号 | US8932022(B2) | 申请公布日期 | 2015.01.13 |
| 申请号 | US201213365557 | 申请日期 | 2012.02.03 |
| 申请人 | Pratt & Whitney Canada Corp. | 发明人 | Ivakitch Richard;Eleftheriou Andreas;Carrieres Alain |
| 分类号 | F01D5/02 | 主分类号 | F01D5/02 |
| 代理机构 | Norton Rose Fulbright Canada LLP | 代理人 | Norton Rose Fulbright Canada LLP |
| 主权项 | 1. A fan and shaft assembly for a turbofan gas turbine engine comprising: a shaft; a fan; sets of aligned throughbores respectively of the shaft and the fan, at a junction between the shaft and the fan; fastening systems for the sets of aligned throughbores, each fastening system comprising a sleeve received in one of the sets of aligned throughbores and sized to fit without play in the set of aligned throughbores, a head of the sleeve abutting a surface at the junction between the shaft and the fan; and a fastener inserted in the sleeve and extending beyond both ends of the sleeve to clamp the fan to the shaft, the fastener being loosely received in the sleeve. | ||
| 地址 | Longueuil, Quebec unknown | ||