Patent ID: 11905969
Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. The scroll structure of a centrifugal compressor according to claim 7
wherein a flow passage shape of the scroll passage in a cross-section extending in a direction perpendicular to a centerline of the scroll passage is not circular in the cross-section including the tongue portion,
wherein a flow passage shape of the outlet passage in a cross-section extending in a direction perpendicular to a centerline of the outlet passage approaches circular as the outlet passage extends downstream from a connecting position with the scroll passage, and
wherein a position where the flow passage shape of the outlet passage changes from a non-circular shape to a circular shape is downstream of the outlet passage from the connecting position by a distance equal to or greater than a passage height at the winding end portion along an axial direction of the centrifugal compressor.