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DIFF Main Group
F01P 9/00

Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 (profiting from waste heat of combustion-engine cooling F02G5/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Cooling having pertinent characteristics not provided for in, or of interest apart from, groups

CPC: Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 (profiting from waste heat of combustion-engine cooling F02G5/00)

Full Title

Full titles differ between systems:

IPC:

Cooling having pertinent characteristics not provided for in, or of interest apart from, groups

CPC:

Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 (profiting from waste heat of combustion-engine cooling F02G5/00)

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F01P 2009/005 2nd only CPC only CPC only
  • F01P 9/02 Cooling by evaporation, e.g. by spraying water on to cylinders (evaporation and condensation of liquid coolant in closed cycles F01P3/22 ) IPC+CPC Available in IPC and CPC
  • F01P 9/04 by simultaneous or alternative use of direct air-cooling and liquid cooling (F01P9/02 takes precedence) IPC+CPC Available in IPC and CPC
  • F01P 9/06 by use of refrigerating apparatus, e.g. of compressor or absorber type IPC+CPC Available in IPC and CPC