COUPLING FOR DIRECTLY DRIVEN COMPRESSOR

A coupling to attach an impeller of a compressor to a shaft of an electric motor. The coupling has a coupling body that is attached at a first of the ends thereof to the impeller and at the opposite second end, to the motor shaft. The coupling body has a deformable section between the first and seco...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: STANKO, MICHAEL J, OWENS, WILLIAM J, SCHWARZ, CARL L
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A coupling to attach an impeller of a compressor to a shaft of an electric motor. The coupling has a coupling body that is attached at a first of the ends thereof to the impeller and at the opposite second end, to the motor shaft. The coupling body has a deformable section between the first and second ends of the coupling body. The deformable section is configured such that under an unbalanced loading exerted against the coupling body upon a failure of the impeller, the deformable section will permanently deform without the ultimate strength of a material forming the coupling body being exceeded and prior to a permanent deformation of the shaft. In such manner, the electric motor is protected from damage upon a failure of the impeller.