IPC Classification

Class code (prefix) Descriptions Number of results
F28F 1/00 Tubular elements; Assemblies of tubular elements
F28F 1/02 Tubular elements of cross-section which is non-circular
F28F 1/04 Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
F28F 1/06 Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
F28F 1/08 Tubular elements crimped or corrugated in longitudinal section
F28F 1/10 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
F28F 1/12 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
F28F 1/14 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
F28F 1/16 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
F28F 1/18 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion the element being built-up from finned sections
F28F 1/20 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
F28F 1/22 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements
F28F 1/24 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
F28F 1/26 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element
F28F 1/28 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being integral with the element the element being built-up from finned sections
F28F 1/30 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
F28F 1/32 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
F28F 1/34 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
F28F 1/36 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically-wound fins or wire spirals
F28F 1/38 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being staggered to form tortuous fluid passages
F28F 1/40 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
F28F 1/42 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
F28F 1/44 Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element and being formed of wire mesh
F28F 3/00 Plate-like or laminated elements; Assemblies of plate-like or laminated elements
F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
F28F 3/04 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
F28F 3/06 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
F28F 3/08 Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
F28F 3/10 Arrangement for sealing the margins
F28F 3/12 Elements constructed in the shape of a hollow panel, e.g. with channels
F28F 3/14 Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation
F28F 5/00 Elements specially adapted for movement
F28F 5/02 Rotary drums or rollers
F28F 5/04 Hollow impellers, e.g. stirring vane
F28F 5/06 Hollow screw conveyors
F28F 7/00 Elements not covered by group , , or
F28F 7/02 Blocks traversed by passages for heat-exchange media
F28F 9/00 Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
F28F 9/02 Header boxes; End plates
F28F 9/04 Arrangements for sealing elements into header boxes or end plates
F28F 9/06 Arrangements for sealing elements into header boxes or end plates by dismountable joints
F28F 9/007 Auxiliary supports for elements
F28F 9/08 Arrangements for sealing elements into header boxes or end plates by dismountable joints by wedge-type connections, e.g. taper ferrule
F28F 9/10 Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
F28F 9/12 Arrangements for sealing elements into header boxes or end plates by dismountable joints by flange-type connections
F28F 9/013 Auxiliary supports for elements for tubes or tube-assemblies
F28F 9/14 Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
F28F 9/16 Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
F28F 9/18 Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
F28F 9/20 Arrangements of heat reflectors, e.g. separately-insertible reflecting walls
F28F 9/22 Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
F28F 9/24 Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
F28F 9/26 Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28F 11/00 Arrangements for sealing leaky tubes or conduits
F28F 11/02 Arrangements for sealing leaky tubes or conduits using obturating elements, e.g. washers, inserted and operated independently of each other
F28F 11/04 Arrangements for sealing leaky tubes or conduits using pairs of obturating elements, e.g. washers, mounted upon central operating rods
F28F 11/06 Arrangements for sealing leaky tubes or conduits using automatic tube-obturating appliances
F28F 13/00 Arrangements for modifying heat transfer, e.g. increasing, decreasing
F28F 13/02 Arrangements for modifying heat transfer, e.g. increasing, decreasing by influencing fluid boundary
F28F 13/04 Arrangements for modifying heat transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
F28F 13/06 Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
F28F 13/08 Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
F28F 13/10 Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by imparting a pulsating motion to the flow, e.g. by sonic vibration
F28F 13/12 Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
F28F 13/14 Arrangements for modifying heat transfer, e.g. increasing, decreasing by endowing the walls of conduits with zones of different degrees of conduction of heat
F28F 13/16 Arrangements for modifying heat transfer, e.g. increasing, decreasing by applying an electrostatic field to the body of the heat-exchange medium
F28F 13/18 Arrangements for modifying heat transfer, e.g. increasing, decreasing by surface treatment, e.g. polishing
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 19/01 Preventing the formation of deposits or corrosion, e.g. by using filters by using means for separating solid materials from heat-exchange fluids, e.g. filters
F28F 19/02 Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings
F28F 19/04 Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of varnish
F28F 19/06 Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of metal
F28F 21/00 Constructions of heat-exchange apparatus characterised by the selection of particular materials
F28F 21/02 Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
F28F 21/04 Constructions of heat-exchange apparatus characterised by the selection of particular materials of natural stone
F28F 21/06 Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
F28F 21/08 Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
F28F 23/00 Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions
F28F 23/02 Arrangements for obtaining or maintaining same in a liquid state
F28F 25/00 Component parts of trickle coolers
F28F 25/02 Component parts of trickle coolers for distributing, circulating, or accumulating liquid
F28F 25/04 Distributing or accumulator troughs
F28F 25/06 Spray nozzles or spray pipes
F28F 25/08 Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
F28F 25/10 Component parts of trickle coolers for feeding gas or vapour
F28F 25/12 Ducts; Guide vanes, e.g. for carrying currents to distinct zones
F28F 27/00 Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
F28F 27/02 Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
F28F 99/00 Subject matter not provided for in other groups of this subclass