Detection of Obstructions in Automotive Manifolds by Aeroacoustic Means*

An aeroacoustic method has been developed to detect obstructions in automotive manifolds. The method has been tested extensively in the laboratory and on production lines of exhaust manifolds and has shown superior performance compared to other methods currently used in industry. It provides the most reliable diagnosis of small-size obstructions. Moreover, the method is very simple, provides fast results, is easy to implement into production …