Method and system for monitoring the level of oil contained in a tank of an aircraft engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01M-011/12
F01D-025/18
출원번호
US-0641743
(2011-04-14)
등록번호
US-9540974
(2017-01-10)
우선권정보
FR-10 52954 (2010-04-19)
국제출원번호
PCT/FR2011/050854
(2011-04-14)
§371/§102 date
20130321
(20130321)
국제공개번호
WO2011/131892
(2011-10-27)
발명자
/ 주소
Demaison, Francois
Flandrois, Xavier
Masse, Jean-Remi
Massot, Gilles
Ricordeau, Julien
Hmad, Ouadir
출원인 / 주소
SNECMA
대리인 / 주소
Oblon, McClelland, Maier & Neustadt, L.L.P.
인용정보
피인용 횟수 :
1인용 특허 :
48
초록▼
A method of monitoring oil level in a tank of an aircraft engine, including: for at least two predetermined operating stages of the engine, during at least one mission of the aircraft: obtaining a plurality of measurements of an oil level of the tank, each measurement being associated with an oil te
A method of monitoring oil level in a tank of an aircraft engine, including: for at least two predetermined operating stages of the engine, during at least one mission of the aircraft: obtaining a plurality of measurements of an oil level of the tank, each measurement being associated with an oil temperature and with an engine speed of rotation, and selecting measurements representative of oil level variations and associated with oil temperatures that are close to a reference temperature and with engine speeds of rotation that are close to a reference speed of rotation; aggregating the measurements selected over the operating stages and during the at least one mission of the aircraft; and comparing the aggregated measurements with reference data to identify abnormal oil consumption of the engine.
대표청구항▼
1. A method of monitoring a level of oil contained in a tank of an aircraft engine, the method comprising: for at least two predetermined operating stages of the engine, during at least one mission of the aircraft: measuring, by an oil level sensor, a plurality of measurements of an oil level of the
1. A method of monitoring a level of oil contained in a tank of an aircraft engine, the method comprising: for at least two predetermined operating stages of the engine, during at least one mission of the aircraft: measuring, by an oil level sensor, a plurality of measurements of an oil level of the tank,measuring an oil temperature and an engine speed of rotation associated with each measurement of the oil level of the tank,storing, in a memory of a first computer, the measurements of the oil level of the tank and the associated oil temperature and associated engine speed of rotation, andselecting, using the first computer, measurements representative of oil level variations having both oil temperatures that are within a predetermined range of a reference temperature and engine speeds of rotation that are within a predetermined range of a reference speed of rotation corresponding to an iso-condition;aggregating, using a second computer, only the measurements corresponding to the iso-condition selected over the operating stages during the at least one mission of the aircraft to produce a curve of the oil level of the tank; andcomparing, using the second computer, the curve produced by the aggregated measurements with reference data to identify abnormal oil consumption of the engine. 2. A monitoring method according to claim 1, wherein the two predetermined operating stages of the engine correspond to a taxiing stage and to a cruising stage in the mission of the aircraft. 3. A monitoring method according to claim 1, wherein, when selecting measurements, measurements that are representative of oil level variations that appear over a duration shorter than a predetermined limit duration are excluded. 4. A monitoring method according to claim 1, wherein, when selecting measurements, oil level measurements greater than a predetermined limit oil level are excluded. 5. A monitoring method according to claim 1, wherein, when selecting measurements, measurements representative of oil level variations greater than a predetermined limit variation are excluded. 6. A monitoring method according to claim 1, wherein the aggregating the measurements includes detecting at least one filling of the tank between two successive missions of the aircraft. 7. A monitoring method according to claim 1, wherein the aggregating the measurements includes correcting at least one oil level measurement as a function of a difference that exists between the oil temperature associated with the measurement and the reference temperature. 8. A monitoring method according to claim 1, wherein the aggregating the measurements includes applying linear regression to the measurements. 9. A monitoring method according to claim 1, wherein the aggregated measurements are compared relative to a predetermined threshold representative of abnormal consumption of oil by the engine. 10. A monitoring method according to claim 1, wherein measurements are aggregated over a plurality of missions of the aircraft, and the aggregated measurements are compared with a reference curve representative of normal consumption of oil by the engine. 11. A monitoring method according to claim 1, wherein: measurements are obtained and selected during the mission of the aircraft; andmeasurements are aggregated and compared by a device on the ground to which the selected measurements have been sent. 12. A monitoring system for monitoring the oil level contained in a tank of an aeroengine, the system comprising: means that are activated for at least two predetermined operating stages of the engine during at least one mission of the aircraft: for measuring a plurality of measurements of an oil level of the tank,for measuring an oil temperature and an engine speed of rotation associated with each measurement of the oil level of the tank, andfor selecting measurements representative of oil level variations having both oil temperatures within a predetermined range of a reference temperature and engine speeds of rotation that are within a predetermined range of a reference speed of rotation corresponding to an iso-condition:means for aggregating only the measurements corresponding to the iso-condition selected over the operating stages during the at least one mission of the aircraft to produce a curve of the oil level of the tank; andmeans for comparing the curve produced by the aggregated measurements with reference data in order to identify abnormal oil consumption of the engine. 13. A monitoring system according to claim 12, wherein: the means for obtaining a plurality of measurements and for selecting the measurements representative of oil level variations are on board the aircraft; andthe means for aggregating the selected measurements and for comparing the aggregated measurements with reference data are incorporated in a device on the ground;the aircraft further including means for sending the selected measurements to the device on the ground.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (48)
Bernhardt, Gerd; H?bner, Ralf, Apparatus and method for determining grain loss in combine harvesters.
Niemczyk Robert T. (Indianapolis IN) Wilson Thomas H. (Indianapolis IN) McCauley Phillip F. (Zionsville IN) Lee Ronald A. (Brownsburg IN) Murray William M. (Pittsboro IN), Apparatus and technique for fluid level determination in automatic transmissions.
Hagerer Paul (Zweibrucken DEX) Glaser Fritz (Zweibrucken DEX) Klimmer Josef W. (Zweibrucken DEX) Kunze Reinhard (Zweibrucken DEX), Combine crop material flow adjustment system.
Georg Eggenhaus DE; Eckehard Jeppe DE; Dieter Strickmann DE; Ulrich Claes DE, Device and method for adjustment of sieve openings in a cleaning mechanism for a combine harvester.
Yeung, Chung-hei (Simon); Schirle, Steven M.; Prasad, Jonnalagadda Venkata Rama (JVR), Method and apparatus for compressor control and operation in industrial gas turbines using stall precursors.
Wickert, Thomas Edward; Sweet, Bryan Edward, Method and operational strategy for controlling variable stator vanes of a gas turbine power generator compressor component during under-frequency events.
Cornet, Albert; Raimarckers, Nicolas; Bajusz, Denis, Method for controlling the consumption and for detecting leaks in the lubrication system of a turbine engine.
Philip L. Andrew ; Chung-hei Yeung ; Joseph A. Cotroneo ; John David Stampfli, Method of air-flow measurement and active operating limit line management for compressor surge avoidance.
Andrew Philip Lynn ; Marks Paul Thomas ; Dwyer Daniel Robert ; Stampfli John David ; Cotroneo Joseph Anthony ; Miller Harold Edward ; Wesorick Ronald Richard, Method of operation of industrial gas turbine for optimal performance.
Hegemier Timothy A. (Eaton OH) Lafever Edward E. (Hagarstown IN) Spoonamore John G. (Hagarstown IN), Oil consumption measurement system for internal combustion engine.
Guertler Thomas,DEX ; Hartmann Markus,DEX ; Land Klaus,DEX ; Weinschenk Alfred,DEX, Process for determining a liquid quantity, particularly an engine oil quantity in a motor vehicle.
Anderson, Mark David; Burns, Jon Leo; Bush, Martin Kenneth; Chervenka, Heather Irene; Nelson, Jeff Arthur; Seyller, Jack Richard; Ziegler, Duane Herbert, Remote adjustment mechanism for a combine harvester cleaning element.
Brown,Eric D.; Cameron,Douglas C.; Krothapalli,Krish R.; von Klein, Jr.,Walter; Williams,Todd M., System and method for automatically controlling a path of travel of a vehicle.
Ohashi Tatsuyuki,JPX ; Tashiro Yoshirou,JPX ; Suzuki Toshiyuki,JPX ; Tokita Kaname,JPX, System for estimating temperature of vehicle hydraulically-operated transmission.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.