Compressor housing, compressor and turbomachine

Abstract

A compressor housing, a compressor, and a turbomachine are disclosed. The compressor housing includes an inlet passage configured to receive an incoming fluid. The inlet passage has an inlet opening. The inlet passage defines a central axis. The compressor housing also includes a first axially extending wall. The compressor housing also includes an impeller chamber. The impeller chamber is in fluid communication with the inlet passage. The impeller chamber is configured to receive a compressor impeller. The compressor housing also includes an outlet passage. The outlet passage is in fluid communication with the impeller chamber. The compressor housing also includes a first recirculation passage. The compressor housing also includes a second recirculation passage. The second recirculation passage includes a conduit. The conduit includes a first end opening and a second end opening. The second end opening is disposed in axial alignment with the first axially extending wall and radially outward of the first axially extending wall. The second recirculation passage also includes an annular channel. The annular channel is configured to receive a fluid flow from the second end opening and discharge the fluid flow into the inlet passage.

Images