Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues

Introduced: September 1968

CPC subdivides this area 3x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F02B 27/001 CPC only CPC only
F02B 27/003 CPC only CPC only
F02B 27/005 +1 CPC CPC only CPC only
F02B 27/008 CPC only CPC only
F02B 27/02 the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means (in exhaust systems only F02B27/06) +3 CPC IPC+CPC Available in IPC and CPC
F02B 27/04 in exhaust systems only, e.g. for sucking-off combustion gases IPC+CPC Available in IPC and CPC