radial compressor impeller
The integration of shorter third impeller blades in radial compressor impellers addresses heating and aerodynamic challenges by transferring heat and improving flow guidance, particularly in partial load conditions.
DE102019132861B4Active Publication Date: 2026-06-11EVERLLENCE SE
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- EVERLLENCE SE
- Filing Date
- 2019-12-03
- Publication Date
- 2026-06-11
AI Technical Summary
Technical Problem
Radial compressor impellers experience heating issues during operation and require improved aerodynamic properties, particularly in partial load conditions.
Method used
Incorporation of third impeller blades that are shorter in both axial and radial directions, positioned between first and second impeller blades, to transfer heat to the flow at the outlet end and enhance flow guidance, using materials like aluminum or magnesium alloys.
Benefits of technology
The solution effectively limits heating and improves aerodynamic properties by efficiently transferring heat and enhancing flow guidance during partial load operation.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
radial compressor impeller (10), with a hub-like base body (11) whose flow-guiding surface (13) has a contour that increases radially from a flow inlet end (14) towards a flow outlet end (15); with guide vanes arranged on the hub-like base body (11), namely first guide vanes (12a) and second guide vanes (12b), wherein the first running blades (12a) are longer than the second running blades (12b), wherein a second running blade (12b) is arranged between each pair of adjacent first running blades (12a), characterized by third rotor blades (12c), which are shorter than the second rotor blades (12b), wherein a third impeller blade (12c) is arranged between each adjacent first and second impeller blades (12a, 12b), wherein the third impeller blades, which are shorter in the axial and radial directions than the second impeller blades, transfer heat to the flow to be guided by the radial compressor impeller in the region of the flow outlet end of the radial compressor impeller in order to limit heating of the radial compressor impeller during operation and furthermore, in a partial load operation of the radial compressor impeller, the aerodynamic properties of the same are improved with regard to improved flow guidance in the region of the flow outlet end.
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