IPC Subgroup
F22D 5/26 Automatic feed-control systems
Introduced: September 1968
Last revised: January 2006
Full Title
Controlling water feed or water level; Automatic water feeding or water-level regulators > Automatic feed-control systems
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- STEAM GENERATION
- Subclass:
- PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
5 direct subcodes
Child Classifications
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- F22D 5/28 responsive to amount of steam withdrawn; responsive to steam pressure
- F22D 5/3 responsive to both water level and amount of steam withdrawn or steam pressure
- F22D 5/32 influencing the speed or delivery pressure of the feed pumps
- F22D 5/34 Applications of valves
- F22D 5/36 for feeding a number of steam boilers designed for different ranges of temperature and pressure