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PCE
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DIFF Subgroup
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)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means

CPC: the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means (in exhaust systems only F02B27/06)

Full Title

Full titles differ between systems:

IPC:

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 > the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means

CPC:

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 > the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means (in exhaust systems only F02B27/06)

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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