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
| Class | Title | Descendants |
|---|---|---|
| F01 | MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES | 2,187 |
| F02 | COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS | 3,467 |
| F03 | MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR | 698 |
| F04 | POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS | 1,905 |
| F05 | INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 | 1,399 |
| F15 | FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL | 728 |
| F16 | ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL | 7,600 |
| F17 | STORING OR DISTRIBUTING GASES OR LIQUIDS | 651 |
| F21 | LIGHTING | 977 |
| F22 | STEAM GENERATION | 467 |
| F23 | COMBUSTION APPARATUS; COMBUSTION PROCESSES | 1,679 |
| F24 | HEATING; RANGES; VENTILATING | 1,744 |
| F25 | REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES | 1,522 |
| F26 | DRYING | 326 |
| F27 | FURNACES; KILNS; OVENS; RETORTS | 892 |
| F28 | HEAT EXCHANGE IN GENERAL | 662 |
| F41 | WEAPONS | 1,010 |
| F42 | AMMUNITION; BLASTING | 530 |
| F99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 2 |
Classification entries by hierarchy level
Child Classifications
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- F01 MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F02 COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F03 MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F04 POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F05 INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F15 FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F16 ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F17 STORING OR DISTRIBUTING GASES OR LIQUIDS
- F21 LIGHTING
- F22 STEAM GENERATION
- F23 COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F24 HEATING; RANGES; VENTILATING
- F25 REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F26 DRYING
- F27 FURNACES; KILNS; OVENS; RETORTS
- F28 HEAT EXCHANGE IN GENERAL
- F41 WEAPONS
- F42 AMMUNITION; BLASTING
- F99 SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION