Detection of the ingress of water or hail into a turbine engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-019/00
G06G-007/70
F02C-009/28
F02C-007/00
출원번호
US-0818729
(2011-08-22)
등록번호
US-9046040
(2015-06-02)
우선권정보
FR-10 56836 (2010-08-30)
국제출원번호
PCT/FR2011/051939
(2011-08-22)
§371/§102 date
20130225
(20130225)
국제공개번호
WO2012/028804
(2012-03-08)
발명자
/ 주소
Djelassi, Cedrik
Riou, Alexandra
출원인 / 주소
SNECMA
대리인 / 주소
Oblon, McClelland, Maier & Neustadt, L.L.P.
인용정보
피인용 횟수 :
1인용 특허 :
5
초록▼
A detection method for detecting ingestion of water or hail in a gas turbine engine, the engine including at least a compressor, a combustion chamber, and a turbine, the method including: estimating a value of a first indicator representative of water or hail being ingested; estimating a value of a
A detection method for detecting ingestion of water or hail in a gas turbine engine, the engine including at least a compressor, a combustion chamber, and a turbine, the method including: estimating a value of a first indicator representative of water or hail being ingested; estimating a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator; and calculating a value of a global indicator by summing at least the first indicator and the second indicator.
대표청구항▼
1. A detection method for detecting ingestion of water or hail in a gas turbine engine, the engine including at least a compressor, a combustion chamber, and a turbine, the method comprising: estimating, using a processor, a value of a first indicator representative of water or hail being ingested;e
1. A detection method for detecting ingestion of water or hail in a gas turbine engine, the engine including at least a compressor, a combustion chamber, and a turbine, the method comprising: estimating, using a processor, a value of a first indicator representative of water or hail being ingested;estimating, using the processor, a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator;calculating, using the processor, a value of a global indicator by summing at least the first indicator and the second indicator;measuring temperature at an inlet of the combustion chamber;estimating, using the processor, a temperature modeling the measured temperature; andfiltering, using the processor, the measured temperature,wherein the value of the first indicator is estimated as a function of a difference between a drop in the measured temperature and a drop in the estimated temperature, and the value of the second indicator is estimated as a function of a difference between the measured temperature and the estimated temperature, andwherein the value of the second indicator is estimated as a function of the difference between the measured temperature as filtered and the estimated temperature. 2. A detection method according to claim 1, wherein the value of the first indicator is estimated while taking account of a normalization function that minimizes an importance of small drops in the measured temperature. 3. A detection method according to claim 1, further comprising: measuring a speed of rotation of the compressor and of the turbine;wherein the value of the second indicator is estimated while taking account of a normalization function that depends on a variation in time of the speed of rotation. 4. A detection method according to claim 1, further comprising: measuring a fuel flow rate; andestimating, using the processor, the value of a third indicator representative of water or hail being ingested as a function at least of the fuel flow rate;wherein the value of the global indicator is calculated by summing the first indicator, the second indicator, and the third indicator. 5. A detection method according to claim 4, further comprising: measuring a speed of rotation of the compressor and of the turbine;wherein the value of the third indicator is estimated as a function of a drop in the speed of rotation. 6. A method of controlling a gas turbine engine including at least a compressor, a combustion chamber, and a turbine, the method comprising: determining a fuel flow rate setpoint within a range limited by a top limit;detecting ingestion of water or hail by estimating, using a processor, a value of a first indicator representative of water or hail being ingested;estimating, using the processor, a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator; calculating, using the processor, a value of a global indicator by summing at least the first indicator and the second indicator;measuring temperature at an inlet of the combustion chamber;estimating, using the processor, a temperature modeling the measured temperature; andfiltering, using the processor, the measured temperature,wherein the value of the first indicator is estimated as a function of a difference between a drop in the measured temperature and a drop in the estimated temperature, and the value of the second indicator is estimated as a function of a difference between the measured temperature and the estimated temperature, andwherein the value of the second indicator is estimated as a function of the difference between the measured temperature as filtered and the estimated temperature; andin response to detecting the ingestion of water or hail, determining a fuel flow rate setpoint in a range that exceeds the top limit. 7. A method of controlling a gas turbine engine including at least a compressor, a combustion chamber, and a turbine, the method comprising: detecting ingestion of water or hail by estimating, using a processor, a value of a first indicator representative of water or hail being ingested;estimating, using the processor, a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator;calculating, using the processor, a value of a global indicator by summing at least the first indicator and the second indicator;measuring temperature at an inlet of the combustion chamber;estimating, using the processor, a temperature modeling the measured temperature; andfiltering, using the processor, the measured temperature,wherein the value of the first indicator is estimated as a function of a difference between a drop in the measured temperature and a drop in the estimated temperature, and the value of the second indicator is estimated as a function of a difference between the measured temperature and the estimated temperature, andwherein the value of the second indicator is estimated as a function of the difference between the measured temperature as filtered and the estimated temperature; andin response to detecting the ingestion of water or hail that has led to a flame-out, selecting a re-ignition fuel flow rate higher than a nominal re-ignition fuel flow rate. 8. A method of controlling a gas turbine engine including at least a compressor, a combustion chamber, and a turbine, the method comprising: detecting ingestion of water or hail by estimating, using a processor, a value of a first indicator representative of water or hail being ingested;estimating, using the processor, a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator;calculating, using the processor, a value of a global indicator by summing at least the first indicator and the second indicator;measuring temperature at an inlet of the combustion chamber;estimating, using the processor, a temperature modeling the measured temperature; andfiltering, using the processor, the measured temperature,wherein the value of the first indicator is estimated as a function of a difference between a drop in the measured temperature and a drop in the estimated temperature, and the value of the second indicator is estimated as a function of a difference between the measured temperature and the estimated temperature, andwherein the value of the second indicator is estimated as a function of the difference between the measured temperature as filtered and the estimated temperature; anddetermining an idling speed setpoint as a function of the global indicator. 9. A non-transitory computer readable medium storing a program for detecting ingestion of water or hail in a gas turbine engine, the engine including at least a compressor, a combustion chamber, and a turbine, wherein the program, when executed, cause a computer to perform a method comprising: estimating a value of a first indicator representative of water or hail being ingested;estimating a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator;calculating a value of a global indicator by summing at least the first indicator and the second indicator;measuring temperature at an inlet of the combustion chamber;estimating a temperature modeling the measured temperature; andfiltering the measured temperature,wherein the value of the first indicator is estimated as a function of a difference between a drop in the measured temperature and a drop in the estimated temperature, and the value of the second indicator is estimated as a function of a difference between the measured temperature and the estimated temperature, andwherein the value of the second indicator is estimated as a function of the difference between the measured temperature as filtered and the estimated temperature. 10. An electronic unit for controlling a gas turbine engine, the electronic unit comprising a memory including the computer readable medium according to claim 9. 11. An aeroengine comprising a gas turbine engine and an electronic unit according to claim 10.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (5)
Mouton Pierre C. (Grigny FRX), Anti-flameout safety system for a gas turbine engine.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.