Honeywell International Inc.

Daniel Frank

Lorrain Sausse

Gary Agnew

Baptiste Szczyrba

Claude Nivoit

Dominique Colombier

Clemence Filou

Tanguy Domange

A variable nozzle for a turbocharger () has a nozzle ring () supporting an array of vanes () that are variable in setting angle. The nozzle ring () is rotationally oriented and fixed in position by a plurality of circumferentially spaced, radially outwardly extending locating members () that engage corresponding locating grooves () in a flange member () of the turbocharger.

Variable nozzle for a turbocharger, having nozzle ring located by radial members

An exemplary vane fronting surface for a variable geometry turbine includes a white layer that comprises nitrides. Such a layer may be formed using gas nitriding. As described, trials demonstrate that such nitriding reduces friction between a vane fronting surface and vanes of a variable geometry turbine. Consequently, nitriding can enhance longevity and controllability of a variable geometry turbine.

Surface treatment for variable geometry turbine

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Charmes, France

Daniel Frank