F28F DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)
Description
F28F covers structural and functional components applicable to heat-exchange apparatus regardless of their specific application or type. This subclass addresses design elements such as tube arrangements, fin geometries, baffles, supports, sealing devices, and corrosion-resistant coatings that improve heat transfer efficiency or apparatus durability. It encompasses both the mechanical construction details and auxiliary features common to various heat exchangers, including tubes, plates, and matrix elements used across refrigeration, air conditioning, industrial cooling, and thermal management systems. This classification excludes apparatus-specific details covered by more specialized classes (e.g., F28D for plate or frame heat exchangers, F28G for condensers) and focuses instead on universal design principles and modifications applicable across different heat-exchange technologies.
30 direct subcodes
Child Classifications
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- F28F 1/00 Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F5/00)
- F28F 11/00 Arrangements for sealing leaky tubes and conduits (stopping flow from or in pipes in general F16L55/10)
- F28F 13/00 Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F1/00 - F28F11/00 take precedence)
- F28F 17/00 Removing ice or water from heat-exchange apparatus
- F28F 19/00 Preventing the formation of deposits or corrosion, e.g. by using filters
- F28F 21/00 Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F 2200/00 Prediction; Simulation; Testing
- F28F 2210/00 Heat exchange conduits
- F28F 2215/00 Fins
- F28F 2220/00 Closure means, e.g. end caps on header boxes or plugs on conduits
- F28F 2225/00 Reinforcing means
- F28F 2230/00 Sealing means
- F28F 2235/00 Means for filling gaps between elements, e.g. between conduits within casings
- F28F 2240/00 Spacing means
- F28F 2245/00 Coatings; Surface treatments
- F28F 2250/00 Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F 2255/00 Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F 2260/00 Heat exchangers or heat exchange elements having special size, e.g. microstructures
- F28F 2265/00 Safety or protection arrangements; Arrangements for preventing malfunction
- F28F 2270/00 Thermal insulation; Thermal decoupling