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Section F: Mechanical Engineering; Lighting; Heating; Weapons; Blasting

19

Classes

103

Subclasses

1,510

Main Groups

9,609

IPC

28,141

CPC

Description

Section F encompasses mechanical engineering disciplines and related technologies that convert energy into motion or mechanical work. It covers a broad range of industrial applications including engines, turbines, pumps, compressors, mechanical transmission systems, and fluid handling equipment. The section also includes auxiliary technologies such as lighting devices, heating systems, weapons, and blasting equipment. This section excludes electrical engineering (Class H) and chemical processes unrelated to mechanical operation, focusing instead on the mechanical principles and physical systems underlying these diverse technological fields.

Visualizations

Size of each class by number of subgroups

Classes in section F by descendant count
ClassTitleDescendants
F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES2,187
F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS3,467
F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR698
F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS1,905
F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F041,399
F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL728
F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL7,600
F17STORING OR DISTRIBUTING GASES OR LIQUIDS651
F21LIGHTING977
F22STEAM GENERATION467
F23COMBUSTION APPARATUS; COMBUSTION PROCESSES1,679
F24HEATING; RANGES; VENTILATING1,744
F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES1,522
F26DRYING326
F27FURNACES; KILNS; OVENS; RETORTS892
F28HEAT EXCHANGE IN GENERAL662
F41WEAPONS1,010
F42AMMUNITION; BLASTING530
F99SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION2

Of 19 combined children, 18 exist in both systems.

1 codes are CPC-only extensions.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

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