Descriptions for F22B and notes/indexes are displayed on this screen.
| F22B
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METHODS OF STEAM GENERATION; STEAM BOILERS (steam engine plants where engine aspects predominate F01K; removal of combustion products or residues, e.g. cleaning of the combustion contaminated surfaces of tubes of boilers, F23J 3/00; domestic central-heating systems using steam F24D; heat exchange or heat transfer in general F28; generation of vapour in the cores of nuclear reactors G21)
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Note(s)
This subclass covers only methods of, or apparatus for, the generation of steam under pressure for heating or power purposes.
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Subclass indexes
METHODS FOR STEAM GENERATION | 1/00, 3/00 | STEAM BOILERS | General characteristics | having drum; having furnace tube; having fire tube; having combined fire tube and water tube; having fire-box | 5/00; 7/00; 9/00; 11/00; 13/00 | having water tubes | auxiliary tubes | 11/00 | horizontal; horizontally-inclined; combined horizontally-inclined and vertical; vertical or steeply-inclined | 15/00; 17/00; 19/00; 21/00 | formed of sets of spaced double-walled water tubes or of return tubes; water tubes with internally-arranged flue tubes | 23/00; 25/00 | Special characteristics | 27/00, 29/00 | Modifications or arrangements; details of general application | 31/00; 37/00 | PLANTS; CONTROL SYSTEMS | 33/00; 35/00 |
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