ENGINE DIAGNOSIS DEVICE

To improve a prediction accuracy at a turbine outlet temperature of a jet engine of an aircraft.SOLUTION: An engine diagnosis device 10 comprises an engine operation data holding part 11 where engine operation data including data of a turbine outlet temperature; a prediction formula holding part 12...

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Bibliographic Details
Main Authors KANIWA MASATO, MOGI YUSUKE, KONO YUKIHIRO
Format Patent
LanguageEnglish
Japanese
Published 29.08.2019
Subjects
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
COMBUSTION ENGINES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
GAS-TURBINE PLANTS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:To improve a prediction accuracy at a turbine outlet temperature of a jet engine of an aircraft.SOLUTION: An engine diagnosis device 10 comprises an engine operation data holding part 11 where engine operation data including data of a turbine outlet temperature; a prediction formula holding part 12 where air temperature and air pressure formula are accumulated; air temperature and air pressure formula holding part 13 where air temperature and air pressure data are accumulated; an air temperature acquisition converter part 14 for calculating prediction expression of air temperature data to calculate the prediction data of air temperature; an air pressure acquisition converter part 15 for calculating the prediction formula of the air pressure data to calculate the prediction data of the air pressure; an engine operation data retrieval part 16 for extracting engine operation data approximate to the air temperature and the air pressure prediction data from the engine operation data of the engine operation data holding part; and an engine operation diagnosis part 17 for diagnosing whether or not the operation of the engine is normal in reference to a distribution of the turbine outlet temperature of the extracted engine operation data.SELECTED DRAWING: Figure 1 【課題】航空機のジェットエンジンのタービン出口温度の予測精度を向上させる。【解決手段】エンジン診断装置１０は、タービン出口温度のデータを含むエンジン運転データが蓄積されるエンジン運転データ保持部１１、気温・気圧の予測式が蓄積される予測式保持部１２、気温、気圧のデータが蓄積される気温・気圧データ保持部１３、気温のデータの予測式を算出して気温の予測データを算出する気温取得変換部１４、気圧のデータの予測式を算出して気圧の予測データを算出する気圧取得変換部１５、気温及び気圧の予測データに近いエンジン運転データをエンジン運転データ保持部のエンジン運転データから抽出するエンジン運転データ検索部１６、及び抽出されたエンジン運転データのタービン出口温度の分布に基づいてエンジンの運転が正常であるかどうかを診断するエンジン運転診断部１７を有している。【選択図】図１
Bibliography:Application Number: JP20180025506