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ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (heat-transfer, heat-exchange or heat-storage materials C09K0005000000;  fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general application F28F); HEAT STORAGE PLANTS OR APPARATUS IN GENERAL 1
F28D0001000000 Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators (F28D0005000000 takes precedence);; 1
F28D0001020000 with the heat-exchange conduits immersed in the body of fluid 1
F28D0001030000 with plate-like or laminated conduits 1
F28D0001040000 with tubular conduits 1
F28D0001047000 the conduits being bent, e.g. in a serpentine or zig-zag 1
F28D0001053000 the conduits being straight 1
F28D0001060000 with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid 1
F28D0003000000 Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits (F28D0005000000 takes precedence);; 1
F28D0003020000 with tubular conduits 1
F28D0003040000 Distributing arrangements 1
F28D0005000000 Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation 1
F28D0005020000 in which the evaporating medium flows in a continuous film or trickles freely over the conduits 1
F28D0007000000 Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall 1
F28D0007020000 the conduits being helically coiled (F28D0007100000 takes precedence);; 1
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