DIFF Main Group
F01B 25/00 Regulating, controlling or safety means (controlling combustion engines F02D)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Regulating, controlling or safety means
CPC: Regulating, controlling or safety means (controlling combustion engines F02D)
Full Title
Full titles differ between systems:
IPC:
Regulating, controlling or safety means
CPC:
Regulating, controlling or safety means (controlling combustion engines F02D)
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F01B 25/02 Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity IPC+CPC Available in IPC and CPC
- F01B 25/16 Safety means responsive to specific conditions (against water hammer or the like in steam engines F01B31/34) IPC+CPC Available in IPC and CPC