US Patent 7469577 Method of diagnosing turbochargers for internal combustion engines

Patent 7469577 was granted and assigned to Detroit Diesel on December, 2008 by the United States Patent and Trademark Office.

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Jason Thomas Barton0

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Golden AI

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Patent abstract

A method for diagnosing a turbocharger (10) includes disconnecting the compressor outlet conduit (26) so that the engine (12) is naturally aspirated and using the engine to drive the turbine (14) of the turbocharger. The compressor outlet conduit (26) has a restriction (28) to create a backpressure which is measured along with the inlet pressure, barometric pressure and ambient temperature. The flow rate is determined and compared to acceptable parameters from a map data provided by a turbocharger manufacturer to diagnose if the turbocharger is operating within the acceptable parameters.

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Golden AI

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