Arrangement for pressurizing of fluid
AssigneeVetco Gray Scandinavia AS
InventorsGiacomo Landi, Vittorio Michelassi, Matteo Dozzini, Francesco Cangioli, Massimiliano Borghetti
Life of this patent
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Abstract
A compressor or pump stage is provided. The compressor or pump stage at least comprising a central shaft (8) and one rotor (3), where the axis of rotation of the rotor (3) is the central shaft (8) and where the rotor comprises a number, n, of rows of impellers (5) arranged at an outer perimeter of the rotor with an axial distance between neighbouring rows of impellers (5), where n={2, 3, 4 . . . }.
Claims7
A compressor or pump arrangement at least comprising a number 1t of compressor or pump stages arranged axially adjacent with each other about a central shaft, wherein each stage at least comprises:
- a rotor, wherein an axis of rotation of each rotor is the central shaft and where each rotor at least is provided with a number n≥2 rows of impellers arranged at an outer surface of the associated rotor with an axial distance between neighbouring rows of impellers;
- and
- an outer shroud surrounding the rotor, where the outer shroud comprises at least, m, rows of diffusors arranged on the inner diameter of the outer shroud, where m=n−1, and where the m diffusors are arranged to protrude from the inner perimeter of the outer shroud and expand in between neighbouring rows of impellers thereby providing a compressor or pump stage.
Dependencies are inferred from the claim text.