METHOD AND DEVICE FOR PERFORMANCE DETECTION OF FUEL OIL UNIT IN AUXILIARY POWER UNIT OF AIRCRAFT

Japanese Patent JP2015038349

A

PROBLEM TO BE SOLVED: To provide a performance detection unit for determining that the performance of a fuel oil unit in an APU is in a stable phase, a decline phase, a serious decline phase or a failure phase.SOLUTION: The invention relates to a method for performance detection of a fuel oil unit in an auxiliary power unit APU. The method comprises the steps of: obtaining APU messages at multiple time points within a certain time period; obtaining operation parameters of the fuel oil unit in the APU on the basis of the APU messages, the operation parameters including at least starting times STA; calculating an average value AVG and a deviation index δ of the starting times STA within the time period; and determining on the basis of the deviation index δ that the performance of the fuel oil unit in the APU is in a stable phase, a decline phase or a failure phase.

WO/2013/133997	EROSION RESISTANT AND HYDROPHOBIC ARTICLE
JPH0842359	TURBINE INLET PASSAGE STRUCTURE
JPH11114662	JOINING METHOD FOR CASTING MATERIAL AND MANUFACTURE OF TURBINE BLADE

HUANG LEI
GU ZHUPING
ZHENG FENGLIANG
MA HONGTAO
WU JIAJU
WANG RONG
CHEN REI

JP2014151147A

February 26, 2015

July 24, 2014

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AIR CHINA LTD

F02C7/00; B64D41/00; B64D47/00; F01D25/00

JP2013018482A	2013-01-31
JP2013019413A	2013-01-31
JP2013028341A	2013-02-07

US20030149550A1	2003-08-07
US20070260390A1	2007-11-08
US20060195248A1	2006-08-31

Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito

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