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

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES

Subclass:

COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES

Child Classifications

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• F01P 9/02 Cooling by evaporation, e.g. by spraying water on to cylinders
• F01P 9/04 by simultaneous or alternative use of direct air cooling and liquid cooling
• F01P 9/06 by use of refrigerating apparatus, e.g. of compressor or absorber type