Fault Detection in Internal Combustion Engines Using an Acoustic Signal

Format:

Conference/Event

Author/Creator:

Ordubadi, Afarin, author.

Conference Name:

SAE International Congress & Exposition (1982-02-22 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1982

Summary:

The engine block vibration is the result of the structural response of the engine to its internal forces. The engine malfunctions which affect these forces also affect the vibration signal. The aim of this study was to demonstrate the feasibility of using engine block vibration for diagnosis of combustion faults. A four-cylinder diesel engine was used for this study. In order to detect variations in combustion force (or equivalent cylinder pressure trace), this signal was reconstructed from the engine block vibration. Measured and modified structural responses were used to reconstruct cylinder pressure trace. The modification of structural response was accomplished by processing its magnitude and/or phase. Finally, the method was used to detect and localize a leak in the injector of one of the cylinders

Notes:

Vendor supplied data

Publisher Number:

820365

Access Restriction:

Restricted for use by site license