Fan rub strip in situ machining system and method
US8888418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2006 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Jun 19, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/30644
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An in situ fan case rub strip machining tool mounts to a LPT/fan rotor shaft assembly of a gas turbine engine. After a fan is removed therefrom such that the machining tool is rotatable about an engine axis of rotation in conjunction with rotation of the LPT/fan rotor shaft assembly. The machining tool permits machining of a rub strip within the fan case of the gas turbine engine without disassembly of the fan case from the core engine as heretofore required. As the machining tool is mounted to the LPT/fan rotor shaft assembly, the cutting tool is accurately locatable relative the engine axis of rotation such that the rub strip is evenly and precisely machined to be concentric with the engine axis to assure proper fan blade tip to rub strip interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.