Secondary-fluid supply for the diffuser of a compressor stage
AssigneeTurbo Systems Switzerland Ltd.
InventorsDaniel RUSCH, Jean-Francois TISSOT
Life of this patent
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Abstract
Embodiments of a compressor stage, in particular for a turbocharging system and/or a turbocompound, and a process for operating a compressor stage are provided herein. The compressor stage comprises an impeller, and a vaned diffuser arranged downstream of the impeller. The vaned diffuser is in fluid connection with an outlet of the impeller and comprises an injection device configured to inject a secondary fluid into the vaned diffuser. The injection device comprises a displaceable port at least partially arranged between an adjacent pair of vanes of the diffuser.
Claims19
Compressor stage comprising:
- an impeller;
- and
- a vaned diffuser arranged downstream of the impeller and being in fluid connection with an outlet of the impeller, the vaned diffuser comprising an injection device configured to inject a secondary fluid into the vaned diffuser;
- wherein the injection device comprises a displaceable port at least partially arranged between an adjacent pair of vanes of the diffuser.
A process for operating a compressor stage for a turbocharging system and/or a turbocompound comprising the following sequence of steps:
- determining a desired mass flow of a secondary fluid;
- determining an effective cross-section of a vaned diffuser of the compressor, to maintain an impeller of the compressor within predetermined operating limits;
- adjusting a cross-section of the vaned diffuser to the effective cross-section.
Dependencies are inferred from the claim text.