i need an detailed information about commercially available rotary compressor, mainly about turbocharger. i need an second hand working turbocharger..... urgently

i am working on a project of jet engine , i need to know about rotary compressors . and the commmercially available rotary compressor ...asap

can u suggest any type of rotoary compressor which is handy and easily available like a turbo charger

i need an rotary type compressor , can u suggest some which are easily available