Title:
METHOD AND DEVICE FOR PERFORMANCE DETECTION OF FUEL OIL UNIT IN AUXILIARY POWER UNIT OF AIRCRAFT
Document Type and Number:
Japanese Patent JP2015038349
Kind Code:
A
Abstract:
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.
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Inventors:
HUANG LEI
GU ZHUPING
ZHENG FENGLIANG
MA HONGTAO
WU JIAJU
WANG RONG
CHEN REI
GU ZHUPING
ZHENG FENGLIANG
MA HONGTAO
WU JIAJU
WANG RONG
CHEN REI
Application Number:
JP2014151147A
Publication Date:
February 26, 2015
Filing Date:
July 24, 2014
Export Citation:
Assignee:
AIR CHINA LTD
International Classes:
F02C7/00; B64D41/00; B64D47/00; F01D25/00
Domestic Patent References:
JP2013018482A | 2013-01-31 | |||
JP2013019413A | 2013-01-31 | |||
JP2013028341A | 2013-02-07 |
Foreign References:
US20030149550A1 | 2003-08-07 | |||
US20070260390A1 | 2007-11-08 | |||
US20060195248A1 | 2006-08-31 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Previous Patent: JP2015038348
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