Having variable working fluid interconnections between turbines or compressors or stages of

Official title: having variable working fluid interconnections between turbines or compressors or stages of different rotors {(controlling flow ratio between different flows of multi-flow jet-propulsion plant, e.g. ducted fan F02K3/075)}

F02C3/13 (Having variable working fluid interconnections between turbines or compressors or stages of) appears on 173 US grants and 205 published applications in this corpus.