A mixed flow compressor
combines the axial and radial components to produce a diagonal flow unit. The exit mean radius is greater than at the inlet, but the flow tends to exit in an axial rather than radial direction. This eliminates the need for a relatively large diameter exit diffuser associated with centrifugal compressors
, The impeller
can be machined from solid using NC machines, in much the same way as that of a centrifugal compressor
Only a handful of mixed flow research compressors have been tested around the world so far.
In the USA, mixed flow compressors are called diagonal flow compressors.