Casing for rotary machine
AssigneeAlfa-Laval AB
InventorsLennart Wahlstrom, Lars K. J. Ehnstrom
Life of this patent
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Abstract
An evacuable casing for a rotor machine comprises a cover surrounding the machine, bearing means mounting the cover for rotation on a foundation, the cover having an endless base edge, and sealing means extending along the base edge to seal against the foundation when a vacuum is applied within the cover. One part of the cover is mounted for movement relative to a second part of the cover to form a large opening in the cover, this opening in combination with said rotation of the cover on the foundation providing easy access to the machine from any radial direction.
Claims10
In combination with a rotor machine having a drive motor and mounted on a foundation, an evacuable casing for said machine comprising a cover arranged on the foundation to surround said machine and its drive motor, bearing means mounting the cover for rotation relative to the foundation, the cover having an endless base edge, sealing means extending along said base edge to seal against the foundation when a sub-atmospheric pressure is applied within the cover, the cover including first and second parts and means mounting said second part for movement relative to said first part to form a large opening in the cover, said opening in combination with said rotation of the cover relative to the foundation providing easy access to said machine from any radial direction.
Dependencies are inferred from the claim text.