Borgwarner Inc.

Malcolm Carr

James Mawer

Steve Birnie

Sanjit Chaggar

Andrew Richardson

A method of assembling and retaining a noise attenuation device () within an air inlet () of a compressor cover () includes inserting the noise attenuation device () into the air inlet () and applying a rolling compressive force to the air inlet () using a forming tool (). As a result, the air inlet terminal end () is deformed radially inward so as to form a radially-inwardly protruding lip (b) about the air inlet terminal end (). The radially-inwardly protruding lip () is configured to retain the noise attenuation device () within the air inlet (). The forming tool () used to form the radially-inwardly protruding lip () is also described.

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Mexborough, United Kingdom

Malcolm Carr