JP2550788B

A fault diagnosis device and process for an exhaust gas recycle control unit of an engine, comprising a return pipe for returning the exhaust gas to an intake pipe, apparatus for opening and closing the return pipe and apparatus for detecting and storing engine operating conditions when the return p...

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Bibliographische Detailangaben
Hauptverfasser:	OOCHI YASUSHI, AZUMA TADAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A fault diagnosis device and process for an exhaust gas recycle control unit of an engine, comprising a return pipe for returning the exhaust gas to an intake pipe, apparatus for opening and closing the return pipe and apparatus for detecting and storing engine operating conditions when the return pipe is opened and closed. The opening and closing apparatus is controlled so that the flow rate of the returned gas is gradually changed when the return pipe is closed from the open state or vice versa.