Compressor device
AssigneeAtlas Copco Airpower, Naamloze Vennootschap
InventorPhilippe Alphonse Louis Ernens
Life of this patent
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Abstract
An improved multi-stage compressor device for compressing gas, which compressor device (1) mainly consists of at least two compressor elements (2-5-28) placed in series one after the other, at least one of which (5-28) is driven by a motor (9), characterized in that at least one other compressor element (2) is driven separately, in other words without any mechanical link with said motor (9), by means of an expander (18) of a closed power cycle (12) with a circulating medium inside which is heated by the compressed gas.
Claims16
1-18. (canceled)
An improved multi-stage compressor device for compressing gas, comprising at least two compressor elements (2-5-28) placed in series one after the other, at least one of which (5-28) is driven by a motor (9), and at least another of which (2) is driven separately without a mechanical link with said motor (9), by an expander (18) included in a closed power cycle (12) with a circulating medium inside which is heated by the compressed gas;
- and wherein the compressor element (5-28) which is driven by the motor (9) is of the screw type, while the compressor element (2) which is driven separately by the expander (18) of the closed power cycle (12) is of the centrifugal type.
Dependencies are inferred from the claim text.