Apparatus to measure the clearance between a first component and a second component
US7688081B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2008 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Nov 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for determining a clearance between rotor blade tips of rotor blades mounted on a rotor and a stator lining mounted on a stator casing. The stator lining is movable radially relative to the stator casing. The stator lining comprises an abradable material. At least one probe is arranged to measure the clearance between blade tips and stator lining. A first portion of the at least one probe is arranged within the stator lining and a tip of the first portion of the at least one probe is arranged flush with the surface of the abradable material. The tip of the first portion of the at least one probe comprises an abradable material. A second portion of the at least one probe is secured to the stator casing. A wire-less and connector-less coupling transmits a measurement signal from the first portion to the second portion of the at least one probe to allow radial movement of the stator lining relative to the stator casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.