Title:
FATIGUE FAILURE DIAGNOSING METHOD AND DEVICE OF TURBOCHARGER
Document Type and Number:
Japanese Patent JP2005351129
Kind Code:
A
Abstract:
To determine the proper replacing timing of a turbocharger, by determining a degree of fatigue of the turbocharger in response to an actual operation state of an engine.
This method diagnoses fatigue failure of the turbocharger 5, and determines the fatigue failure of the turbocharger 5 by comparing an arithmetically operated accumulation fatigue value Ft with a predetermined fatigue limit value F1 by arithmetically operating the accumulation fatigue value Ft on the basis of a measured rotating speed by measuring the rotating speed of the turbocharger 5.
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Inventors:
MATSUMOTO SHUNJI
SONOHARA MITSUHIRO
SONOHARA MITSUHIRO
Application Number:
JP2004171147A
Publication Date:
December 22, 2005
Filing Date:
June 09, 2004
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
G01M15/04; F01D5/14; F01D5/28; F01D21/00; F01D25/00; F02B39/00; F02B39/16; F04D27/02; F04D29/00; G01M99/00; G07C3/00; (IPC1-7): F02B39/16; F01D5/14; F01D5/28; F01D25/00; F02B39/00; F04D29/00; G01M15/00
Attorney, Agent or Firm:
Nobuo Kinutani
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