Multi-stage compressor with single electric direct drive motor
AssigneeIngersoll-Rand Industrial U.S., Inc.
InventorsCristiano Lissoni, Juha Tuomas Saari, Jouko Tapani Peussa
Life of this patent
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Abstract
A compressor system includes an electric motor having a rotatable output shaft extending from either end thereof. The compressor system further includes multiple compression stages fluidly coupled to one another in series and mechanically connected to the output shaft. The first compressor stage includes two split impellers with each impeller discharging approximately one half of the fluid flow at a desired pressure to the second compressor stage.
Claims25
A compressor system comprising:
- a single electric motor having a first and a second end;
- a rotatable output shaft extending from the electric motor;
- first, second and third compressor stages fluidly coupled to one another in series and mechanically connected to the output shaft the first compressor stage including two split impellers with each impeller discharging approximately one half of the fluid flow at a desired pressure to the second compressor stage,
- wherein one of the spilt impellers of the first stage compressor is positioned at the first end of the electric motor and the other of the split impellers is positioned at the second end of the electric motor.
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A compressor system comprising:
- an electric motor;
- a rotatable output shaft extending from the electric motor;
- an active magnetic bearing coupled to the output shaft;
- a first compressor stage coupled to the output shaft;
- a first aftercooler positioned downstream of the first compressor stage;
- a second compressor stage coupled to the output shaft positioned downstream of the first aftercooler;
- a second aftercooler positioned downstream of the second compressor stage;
- a third compressor stage coupled to the output shaft positioned downstream of the second aftercooler;
- a third aftercooler positioned downstream of the third compressor stage the first compressor stage including a pair of split impellers such that each of the split impellers compresses approximately one half of the fluid flow to a desired pressure in the first compressor stage,
- wherein one of the spilt impellers is positioned at a first end of the electric motor and the other of the split impellers is positioned at a second end of the electric motor.
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24-28. (canceled)
A compressor system comprising:
- an electric motor;
- a rotatable output shaft extending from the electric motor;
- an active magnetic bearing coupled to the output shaft;
- a first compressor stage coupled to the output shaft;
- a first aftercooler positioned downstream of the first compressor stage;
- a second compressor stage coupled to the output shaft positioned downstream of the first aftercooler;
- a second aftercooler positioned downstream of the second compressor stage;
- a third compressor stage coupled to the output shaft positioned downstream of the second aftercooler;
- a third aftercooler positioned downstream of the third compressor stage, the first compressor stage including a pair of split impellers such that each of the split impellers compresses approximately one half of the fluid flow to a desired pressure in the first compressor stage,
- wherein one of the spilt impellers is positioned at a first end of the electric motor and the other of the split impellers is positioned at a second end of the electric motor wherein the output shaft extends from each of the first end and the second end of the electric motor.
Dependencies are inferred from the claim text.