Method for detecting ice ingestion in a gas turbine engine
US7895818B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | May 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K3/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of detecting an ice shedding event in a gas turbine engine, the engine having a rotor comprising a compressor drivingly connected via a shaft to a turbine; the method for detecting an ice shedding event comprising the steps of measuring the temperature at regular intervals and where a temperature drop of at least 20 degrees per second is recorded, producing a signal indicative of an ice shedding event and sending the signal to an indicator device. Advantageously, the engine may then be inspected for damage associated to an ice impact rather than other foreign object ingestion event or fuel flow irregularity. Alternatively, instead of temperature, pressure may be measured and a pressure drop of at least 20 kPa per second is indicative of an ice shedding event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.