Temperature responsive control apparatus
US4253603A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Jan 19, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2409
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detector for sensing the compressor inlet temperature of a gas turbine engine and for producing an output pressure signal which is used by the fuel control of the engine. The magnitude of the output signal is determined by the position of a valve which changes positions in response to changes in temperature. The response time of the detector is made faster by causing a feedback pressure which acts on the valve to initially change at a slower rate than the output pressure (i.e., to lag the output pressure) when the output pressure changes as a result of temperature variations. The invention can be incorporated either in a self-contained sensor or in an add-on unit which can be retrofitted to existing sensors having relatively slow response characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.