Axially nested compressors

A compressor comprising:

• a first compressor wheel comprising:
• a first chamber configured to retain a medium;
• a first impeller disposed within the first chamber, wherein the first impeller is configured to revolve around a longitudinal axis of the compressor and within the first chamber;
• and
• a first diffuser fluidically connected to the first chamber, wherein the first diffuser is configured to output the medium from the first chamber;
• and a second compressor wheel comprising:
• a second chamber disposed radially outwards of the first chamber relative to the longitudinal axis, wherein the second chamber is separated from the first chamber by a first outer wall, wherein the second chamber is configured to receive the outputted medium from the first chamber, and wherein the second chamber comprises a second outer wall radially outwards of the first outer wall;
• a second impeller disposed within the second chamber and radially inwards of the second outer wall, wherein the second impeller is configured to revolve around the longitudinal axis within the second chamber;
• and
• a second diffuser fluidically connected to the second chamber, wherein the second diffuser is configured output the medium from the second chamber,
• wherein the second outer wall shrouds the second chamber from a first opening of the second chamber to a second opening of the second chamber and around an outer circumference of the second chamber.

A method of manufacturing a compressor, the method comprising:

• forming a first chamber of a first compressor wheel around a longitudinal axis;
• disposing a first impeller of the first compressor wheel within the first chamber, wherein the first impeller is configured to revolve around the and within the first chamber;
• affixing a first diffuser of the first compressor wheel to the first chamber, wherein the first diffuser is configured to output the medium from the first chamber;
• disposing a second chamber of a second compressor wheel radially outwards of the first chamber relative to the longitudinal axis, wherein the second chamber is separated from the first chamber by a first outer wall, and wherein the second chamber is configured to receive the outputted medium from the first chamber;
• disposing a second impeller of the second compressor wheel within the second chamber, wherein the second impeller is configured to revolve around the longitudinal axis within the second chamber;
• and
• affixing a second diffuser of the second compressor wheel to the second chamber, wherein the second diffuser is configured output the medium from the second chamber.