DIFF Subgroup
F02C 9/20 by throttling; by adjusting vanes
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Controlling gas-turbine plants; Controlling fuel supply in air-breathing jet-propulsion plants > Control of working fluid flow > by throttling; by adjusting vanes
CPC:
Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants (controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05) > Control of working fluid flow (F02C9/48 takes precedence; control of air-intake flow F02C7/057) > by throttling; by adjusting vanes
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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