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Abstract

Two stage centrifugal compressors especially with a single sided wheel architecture face significant thrust loads. The proposed solution uses a relief hole in the impeller combined with a through hole in the shaft that allows gas flow from the first stage to flow through the rotor and cool the rear journal bearing. This flow architecture reduces the thrust loads significantly and improves efficiency by cooling the rotor along with bearings.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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