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CPC
COOPERATIVE PATENT CLASSIFICATION
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F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)
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F28F 1/00
Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00)
F28F 1/003
.
{
Multiple wall conduits, e.g. for leak detection (leak-detection in metal cooled nuclear reactor steam generators F22B 1/066)
}
F28F 1/006
.
{
with variable shape, e.g. with modified tube ends, with different geometrical features (F28F 1/025, F28F 1/06, F28F 1/08, F28F 9/16, F28F 9/18 take precedence)
}
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F28F 1/02
.
Tubular elements of cross-section which is non-circular (F28F 1/08, F28F 1/10 take precedence)
F28F 1/022
. .
{
with multiple channels
}
F28F 1/025
. .
{
with variable shape. e.g. with modified tube ends, with different geometrical features (F28F 1/06, F28F 1/08, F28F 9/16, F28F 9/18 take precedence)
}
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F28F 1/04
. .
polygonal, e.g. rectangular
{
(F28F 1/022 takes precedence)
}
F28F 1/045
. . .
{
with assemblies of stacked elements
}
F28F 1/06
. .
crimped or corrugated in cross-section
F28F 1/08
.
Tubular elements crimped or corrugated in longitudinal section
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F28F 1/10
.
Tubular lements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses (crimped or corrugated elements F28F 1/06, F28F 1/08)
F28F 1/105
. .
{
the means being corrugated elements extending around the tubular elements
}
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F28F 1/12
. .
the means being only outside the tubular element
F28F 1/122
. . .
{
and being formed of wires
}
F28F 1/124
. . .
{
and being formed of pins
}
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F28F 1/126
. . .
{
consisting of zig-zag shaped fins (F28F 1/105 takes precedence)
}
F28F 1/128
. . . .
{
Fins with openings, e.g. louvered fins
}
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F28F 1/14
. . .
and extending longitudinally (F28F 1/38 takes precedence)
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F28F 1/16
. . . .
the means being integral with the element, e.g. formed by extrusion (F28F 1/22 takes precedence)
F28F 1/18
. . . . .
the element being built-up from finned sections
F28F 1/20
. . . .
the means being attachable to the element (F28F 1/22 takes precedence)
F28F 1/22
. . . .
the means having portions engaging further tubular elements
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F28F 1/24
. . .
and extending transversely (F28F 1/38 takes precedence)
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F28F 1/26
. . . .
the means being integral with the element (F28F 1/32 takes precedence)
F28F 1/28
. . . . .
the element being built-up from finned sections
F28F 1/30
. . . .
the means being attachable to the element (F28F 1/32 takes precedence)
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F28F 1/32
. . . .
the means having portions engaging further tubular elements
F28F 1/325
. . . . .
{
Fins with openings
}
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F28F 1/34
. . .
and extending obliquely (F28F 1/38 takes precedence)
F28F 1/36
. . . .
the means being helically wound fins or wire spirals
F28F 1/38
. . .
and being staggered to form tortuous fluid passages
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F28F 1/40
. .
the means being only inside the tubular element
F28F 1/405
. . .
{
and being formed of wires
}
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F28F 1/42
. .
the means being both outside and inside the tubular element
F28F 1/422
. . .
{
with outside means integral with the tubular element and inside means integral with the tubular element (F28F 1/424 takes precedence)
}
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F28F 1/424
. . .
{
Means comprising outside portions integral with inside portions
}
F28F 1/426
. . . .
{
the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
}
F28F 1/44
. . .
and being formed of wire mesh
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F28F 3/00
Plate-like or laminated elements; Assemblies of plate-like or laminated elements (specially adapted for movement F28F 5/00)
F28F 3/005
.
{
Arrangements for preventing direct contact between different heat-exchange media (F28F 3/10 takes precedence)
}
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F28F 3/02
.
Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations (F28F 3/08
{
F28F3/08D
}
 takes precedence)
F28F 3/022
. .
{
the means being wires or pins
}
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F28F 3/025
. .
{
the means being corrugated, plate-like elements
}
F28F 3/027
. . .
{
with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
}
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F28F 3/04
. .
the means being integral with the element
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F28F 3/042
. . .
{
in the form of local deformations of the element
}
F28F 3/044
. . . .
{
the deformations being pontual, e.g. dimples
}
F28F 3/046
. . . .
{
the deformations being linear, e.g. corrugations
}
F28F 3/048
. . .
{
in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
}
F28F 3/06
. .
the means being attachable to the element
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F28F 3/08
.
Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
F28F 3/083
. .
{
capable of being taken apart
}
F28F 3/086
. .
{
having one or more openings therein forming tubular heat-exchange passages
}
F28F 3/10
. .
Arrangements for sealing the margins
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F28F 3/12
.
Elements constructed in the shape of a hollow panel, e.g. with channels
{
(F28D 1/02, F28D 1/03 take precedence)
}
F28F 3/14
. .
by separating portions of a pair of joined sheets to form channels, e.g. by inflation (manufacture thereof B23P)
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F28F 5/00
Elements specially adapted for movement (arrangements for moving the elements, see the appropriate subclass for the apparatus concerned)
F28F 5/02
.
Rotary drums or rollers
F28F 5/04
.
Hollow impellers, e.g. stirring vane
F28F 5/06
.
Hollow screw conveyers
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F28F 7/00
Elements not covered by group F28F 1/00, F28F 3/00 or F28F 5/00
F28F 7/02
.
Blocks traversed by passages for heat-exchange media
{
(F28D 7/0008 takes precedence)
}
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F28F 9/00
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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F28F 9/001
.
{
Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
}
F28F 9/002
. .
{
with fastening means for other structures
}
F28F 9/005
.
{
Other auxiliary members within casings, e.g. internal filling means or sealing means
}
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F28F 9/007
.
Auxiliary supports for elements
F28F 9/0075
. .
{
Supports for plates or plate assemblies
}
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F28F 9/013
. .
for tubes or tube-assemblies
F28F 9/0131
. . .
{
formed by plates (F28F 9/0138 takes precedence)
}
F28F 9/0132
. . .
{
formed by slats, tie-rods, articulated or expandable rods
}
F28F 9/0133
. . .
{
formed by concentric strips
}
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F28F 9/0135
. . .
{
formed by grids having only one tube per closed grid opening (F28F 9/0132 and F28F 9/0133 take precedence)
}
F28F 9/0136
. . . .
{
formed by intersecting strips
}
F28F 9/0137
. . .
{
formed by wires, e.g. helically coiled (F28F 9/0135 takes precedence)
}
F28F 9/0138
. . .
{
formed by sleeves for finned tubes
}
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F28F 9/02
.
Header boxes; End plates
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F28F 9/0202
. .
{
Header boxes having their inner space divided by partitions
}
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F28F 9/0204
. . .
{
for elongated header box, e.g. with transversal and longitudinal partitions
}
F28F 9/0207
. . . .
{
the longitudinal or transversal partitions being separate elements attached to header boxes (F28F 9/0212, F28F 9/0217 take precedence)
}
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F28F 9/0209
. . . .
{
having only transversal partitions
}
F28F 9/0212
. . . . .
{
the partitions being separate elements attached to header boxes
}
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F28F 9/0214
. . . .
{
having only longitudinal partitions
}
F28F 9/0217
. . . . .
{
the partitions being separate elements attached to header boxes
}
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F28F 9/0219
. .
{
Arrangements for sealing end plates into casing or header box; Header box sub-elements (F28F 9/0236 takes precedence)
}
F28F 9/0221
. . .
{
Header boxes or end plates formed by stacked elements
}
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F28F 9/0224
. . .
{
Header boxes formed by sealing end plates into covers (F28F 9/0221 takes precedence)
}
F28F 9/0226
. . . .
{
with resilient gaskets
}
F28F 9/0229
. .
{
Double end plates; Single end plates with hollow spaces
}
F28F 9/0231
. .
{
Header boxes having an expansion chamber
}
F28F 9/0234
. .
{
having a second heat exchanger disposed there within, e.g. oil cooler
}
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F28F 9/0236
. .
{
floating elements
}
F28F 9/0239
. . .
{
floating header boxes
}
F28F 9/0241
. . .
{
floating end plates
}
F28F 9/0243
. .
{
Header boxes having a circular cross-section
}
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F28F 9/0246
. .
{
Arrangements for connecting header boxes with flow lines
}
F28F 9/0248
. . .
{
Arrangements for sealing connectors to header boxes
}
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F28F 9/0251
. . .
{
Massive connectors, e.g. blocks; Plate-like connectors
}
F28F 9/0253
. . . .
{
with multiple channels, e.g. with combined inflow and outflow channels
}
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F28F 9/0256
. . .
{
Arrangements for coupling connectors with flow lines
}
F28F 9/0258
. . . .
{
of quick acting type, e.g. with snap action
}
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F28F 9/026
. .
{
with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
}
F28F 9/0263
. . .
{
by varying the geometry or cross-section of header box
}
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F28F 9/0265
. . .
{
by using guiding means or impingement means inside the header box
}
F28F 9/0268
. . . .
{
in the form of multiple deflectors for channeling the heat exchange medium
}
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F28F 9/027
. . .
{
in the form of distribution pipes
}
F28F 9/0273
. . . .
{
with multiple holes
}
F28F 9/0275
. . . .
{
with multiple branch pipes
}
F28F 9/0278
. . .
{
in the form of stacked distribution plates or perforated plates arranged over end plates
}
F28F 9/028
. . .
{
by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
}
F28F 9/0282
. . .
{
by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet
}
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F28F 9/04
. .
Arrangements for sealing elements into header boxes or end plates
{
arrangements for sealing flow lines connectors to header boxes F28F 9/0248
}
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F28F 9/06
. . .
by dismountable joints
F28F 9/08
. . . .
by wedge-type connections, e.g. taper ferrule
F28F 9/10
. . . .
by screw-type connections, e.g. gland
F28F 9/12
. . . .
by flange-type connections
F28F 9/14
. . . .
by force-joining
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F28F 9/16
. . .
by permanent joints, e.g. by rolling (metal-working procedures in general B21, B32; particularly B21D 39/06, B23K)
F28F 9/162
. . . .
{
by using bonding or sealing substances, e.g. adhesives (F28F 9/18 takes precedence)
}
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F28F 9/165
. . . .
{
by using additional preformed parts, e.g. sleeves, gaskets (F28F 9/185 takes precedence)
}
F28F 9/167
. . . . .
{
the parts being inserted in the heat-exchange conduits
}
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F28F 9/18
. . . .
by welding
F28F 9/182
. . . . .
{
the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
}
F28F 9/185
. . . . .
{
with additional preformed parts
}
F28F 9/187
. . . . .
{
at least one of the parts being non-metallic, e.g. heat-sealing plastic elements
}
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 1/38 takes precedence; in general F15D)
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F28F 9/26
.
Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators (connecting different sections in water heaters F24H 9/14,
{
connecting headers with inlet or outlet fittings F28F9/04B
}
)
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F28F 9/262
. .
{
for radiators (F28D 1/0408 takes precedence)
}
F28F 9/264
. . .
{
by sleeves, nipples
}
F28F 9/266
. . .
{
by screw-type connections
}
F28F 9/268
. . .
{
by permanent joints, e.g. by welding
}
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F28F 11/00
Arrangements for sealing leaky tubes and conduits (stopping flow from or in pipes in general F16L 55/10)
F28F 11/02
.
using obturating elements, e.g. washers, inserted and operated independently of each other (F28F 11/06 takes precedence)
F28F 11/04
.
using pairs of obturating elements, e.g. washers, mounted upon central operating rods (F28F 11/06 takes precedence)
F28F 11/06
.
using automatic tube obturating appliances
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F28F 13/00
Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F 1/00 to F28F 11/00 take precedence)
F28F 13/003
.
{
by using permeable mass, perforated or porous materials (F28F 13/18 takes precedence)
}
F28F 13/02
.
by influencing fluid boundary (boundary-layer control in general F15D)
F28F 13/04
.
by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
{
F28F 13/18 takes precedence
}
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F28F 13/06
.
by affecting the pattern of flow of the heat-exchange media
{
(F28F 13/003 takes precedence; static flow control means in header boxes F28F 9/026 )
}
F28F 13/08
. .
by varying the cross-section of the flow channels
F28F 13/10
. .
by imparting a pulsating motion to the flow, e.g. by sonic vibration
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F28F 13/12
. .
by creating turbulence, e.g. by stirring, by increasing the force of circulation (F28F 13/08 takes precedence)
F28F 13/125
. . .
{
by stirring
}
F28F 13/14
.
by endowing the walls of conduits with zones of different degrees of conduction of heat
F28F 13/16
.
by applying an electrostatic field to the body of the heat-exchange medium
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F28F 13/18
.
by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
F28F 13/182
. .
{
especially adapted for evaporator or condenser surfaces (F28F 13/187 takes precedence)
}
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F28F 13/185
. .
{
Heat-exchange surfaces provided with microstructures or with porous coatings
}
F28F 13/187
. . .
{
especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
}
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F28F 17/00
Removing ice or water from heat-exchange apparatus
F28F 17/005
.
{
Means for draining condensates from heat exchangers, e.g. from evaporators (F28B 9/08 takes precedence)
}
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F28F 19/00
Preventing the formation of deposits or corrosion, e.g. by using filters
{
or scrapers
}
F28F 19/002
.
{
by using inserts or attachments
}
F28F 19/004
.
{
by using protective electric currents, voltages, cathodes, anodes, electric short-circuits
}
F28F 19/006
.
{
Preventing deposits of ice
}
F28F 19/008
.
{
by using scrapers
}
F28F 19/01
.
by using means for separating solid materials from heat-exchange fluids, e.g. filters
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F28F 19/02
.
by using coatings, e.g. vitreous or enamel coatings
F28F 19/04
. .
of rubber; of plastics material; of varnish
F28F 19/06
. .
of metal
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F28F 21/00
Constructions of heat-exchange apparatus characterised by the selection of particular materials
{
(coatings for modifying heat-transfer F28F 13/18; coatings for preventing the formation of deposits or corrosion F28F 19/02)
}
F28F 21/003
.
{
for domestic or space-heating systems
}
F28F 21/006
.
{
of glass
}
F28F 21/02
.
of carbon, e.g. graphite
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F28F 21/04
.
of ceramic; of concrete; of natural stone
F28F 21/045
. .
{
for domestic or space-heating systems
}
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F28F 21/06
.
of plastics material
F28F 21/061
. .
{
for domestic or space-heating systems
}
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F28F 21/062
. .
{
the heat-exchange apparatus employing tubular conduits
}
F28F 21/063
. . .
{
for domestic or space-heating systems
}
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F28F 21/065
. .
{
the heat-exchange apparatus employing plate-like or laminated conduits
}
F28F 21/066
. . .
{
for domestic or space-heating systems
}
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F28F 21/067
. .
{
Details
}
F28F 21/068
. . .
{
for domestic or space-heating systems
}
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F28F 21/08
.
of metal
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F28F 21/081
. .
{
Heat exchange elements made from metals or metal alloys
}
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F28F 21/082
. . .
{
from steel or ferrous alloys
}
F28F 21/083
. . . .
{
from stainless steel
}
F28F 21/084
. . .
{
from aluminium or aluminium alloys
}
F28F 21/085
. . .
{
from copper or copper alloys
}
F28F 21/086
. . .
{
from titanium or titanium alloys
}
F28F 21/087
. . .
{
from nickel or nickel alloys
}
F28F 21/088
. .
{
for domestic or space-heating systems
}
F28F 21/089
. .
{
Coatings, claddings or bonding layers made from metals or metal alloys (F28F 19/06 takes precedence)
}
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F28F 23/00
Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions (heat-transfer, heat-exchange or heat-storage materials C09K 5/00)
F28F 23/02
.
Arrangements for obtaining or maintaining same in a liquid state
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F28F 25/00
Component parts of trickle coolers (arrangements for increasing heat transfer F28F 13/00; controlling arrangements F28F 27/00)
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F28F 25/02
.
for distributing, circulating, and accumulating liquid (spraying or atomising in general B05B, B05D)
F28F 25/04
. .
Distributing or accumulator troughs
F28F 25/06
. .
Spray nozzles or spray pipes
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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 (packing elements per se B01J 19/30, B01J 19/32)
F28F 25/082
. . .
{
Spaced elongated bars, laths; Supports therefor
}
F28F 25/085
. . .
{
Substantially horizontal grids; Blocks
}
F28F 25/087
. . .
{
Vertical or inclined sheets; Supports or spacers
}
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F28F 25/10
.
for feeding gas or vapour
F28F 25/12
. .
Ducts; Guide vanes, e.g. for carrying currents to distinct zones
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F28F 27/00
Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus (control arrangements in general G05)
F28F 27/003
.
{
specially adapted for cooling towers
}
F28F 27/006
.
{
specially adapted for regenerative heat-exchange apparatus
}
F28F 27/02
.
for controlling the distribution of heat-exchange media between different channels (
{
static flow control means in header boxes F28F 9/026
}
; arrangements of guide plates or guide vanes F28F 9/22, F28F 25/12)
F28F 99/00
Subject matter not provided for in other groups of this subclass
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F28F 2001/00
Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00)
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F28F 2001/02
.
Tubular elements of cross-section which is non-circular (F28F 1/08, F28F 1/10 take precedence)
F28F 2001/027
. .
with dimples
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F28F 2001/10
.
Tubular lements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses (crimped or corrugated elements F28F 1/06, F28F 1/08)
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F28F 2001/42
. .
the means being both outside and inside the tubular element
F28F 2001/428
. . .
Particular methods for manufacturing outside or inside fins
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F28F 2009/00
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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F28F 2009/001
.
{
Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
}
F28F 2009/004
. .
Common frame elements for multiple cores
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F28F 2009/02
.
Header boxes; End plates
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F28F 2009/0285
. .
Other particular headers or end plates
F28F 2009/0287
. . .
having passages for different heat exchange media
F28F 2009/029
. . .
with increasing or decreasing cross-section, e.g. having conical shape
F28F 2009/0292
. . .
with fins
F28F 2009/0295
. . .
comprising cooling circuits
F28F 2009/0297
. . .
Side headers, e.g. for radiators having conduits laterally connected to common header
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F28F 2009/22
.
Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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F28F 2009/222
. .
Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
F28F 2009/224
. . .
Longitudinal partitions
F28F 2009/226
. . .
Transversal partitions
F28F 2009/228
. . .
Oblique partitions
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F28F 2013/00
Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F 1/00 to F28F 11/00 take precedence)
F28F 2013/001
.
Particular heat conductive materials, e.g. superconductive elements (for thermal joints F28F 2013/006)
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F28F 2013/005
.
Thermal joints
F28F 2013/006
. .
Heat conductive materials
F28F 2013/008
. .
Variable conductance materials; Thermal switches
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F28F 2025/00
Component parts of trickle coolers (arrangements for increasing heat transfer F28F 13/00; controlling arrangements F28F 27/00)
F28F 2025/005
.
Liquid collection; Liquid treatment; Liquid recirculation; Addition of make-up liquid
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F28F 2200/00
Prediction; Simulation; Testing (measuring quantity of heat conveyed by flowing mediums G01K 17/06)
F28F 2200/005
.
Testing heat pipes
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F28F 2210/00
Heat exchange conduits
F28F 2210/02
.
with particular branching, e.g. fractal conduit arrangements
F28F 2210/04
.
Arrangements of conduits common to different heat exchange sections, the conduits having channels for different circuits
F28F 2210/06
.
having walls comprising obliquely extending corrugations, e.g. in the form of threads
F28F 2210/08
.
Assemblies of conduits having different features
F28F 2210/10
.
Particular layout, e.g. for uniform temperature distribution
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F28F 2215/00
Fins
F28F 2215/02
.
Arrangements of fins common to different heat exchange sections, the fins being in contact with different heat exchange media
F28F 2215/04
.
Assemblies of fins having different features, e.g. with different fin densities
F28F 2215/06
.
Hollow fins; fins with internal circuits
F28F 2215/08
.
with openings, e.g. louvers (zig-zag fins with openings F28F 1/128, common transversal fins with openings F28F 1/325, corrugated fins with openings F28F 3/027)
F28F 2215/10
.
Secondary fins, e.g. projections or recesses on main fins
F28F 2215/12
.
with U-shaped slots for laterally inserting conduits
F28F 2215/14
.
in the form of movable or loose fins
F28F 2220/00
Closure means, e.g. end caps on header boxes or plugs on conduits
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F28F 2225/00
Reinforcing means
F28F 2225/02
.
for casings
F28F 2225/04
.
for conduits
F28F 2225/06
.
for fins
F28F 2225/08
.
for header boxes
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
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F28F 2245/00
Coatings; Surface treatments
F28F 2245/02
.
hydrophilic
F28F 2245/04
.
hydrophobic
F28F 2245/06
.
having particular radiating, reflecting or absorbing features, e.g. for improving heat transfer by radiation
F28F 2245/08
.
self-cleaning
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F28F 2250/00
Arrangements for modifying the flow of the heat exchange media (in general F28F 13/06), e.g. flow guiding means (in casings F28F 9/22); Particular flow patterns
F28F 2250/02
.
Streamline-shaped elements
F28F 2250/04
.
Communication passages between channels
F28F 2250/06
.
Derivation channels, e.g. bypass
F28F 2250/08
.
Fluid driving means, e.g. pumps, fans
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F28F 2250/10
.
Particular pattern of flow of the heat exchange media
F28F 2250/102
. .
with change of flow direction
F28F 2250/104
. .
with parallel flow
F28F 2250/106
. .
with cross flow
F28F 2250/108
. .
with combined cross flow and parallel flow
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F28F 2255/00
Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
F28F 2255/02
.
Flexible elements
F28F 2255/04
.
comprising shape memory alloys or bimetallic elements
F28F 2255/06
.
composite, e.g. polymers with fillers or fibres
F28F 2255/08
.
pressed; stamped; deep-drawn
F28F 2255/10
.
made by hydroforming
F28F 2255/12
.
expanded or perforated metal plate
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F28F 2255/14
.
molded
F28F 2255/143
. .
injection molded
F28F 2255/146
. .
overmolded
F28F 2255/16
.
extruded
F28F 2255/18
.
sintered
F28F 2255/20
.
with nanostructures
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F28F 2260/00
Heat exchangers or heat exchange elements having special size, e.g. microstructures (micro heat pipes F28D 2015/0225; nanostructures F28F 2255/20)
F28F 2260/02
.
having microchannels
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F28F 2265/00
Safety or protection arrangements; Arrangements for preventing malfunction (control or monitoring devices F28F 27/00)
F28F 2265/02
.
in the form of screens or covers (heat shields F28F 2265/10)
F28F 2265/06
.
by using means for draining heat exchange media from heat exchangers
F28F 2265/10
.
for preventing overheating, e.g. heat shields (thermal insulation F28F 2270/00)
F28F 2265/12
.
for preventing overpressure
F28F 2265/14
.
for preventing damage by freezing, e.g. for accommodating volume expansion
F28F 2265/16
.
for preventing leakage
F28F 2265/18
.
for removing contaminants, e.g. for degassing
F28F 2265/20
.
for preventing development of microorganisms
F28F 2265/22
.
for draining
F28F 2265/24
.
for electrical insulation
F28F 2265/26
.
for allowing differential expansion between elements (floating header box elements F28F 9/0236)
F28F 2265/28
.
for preventing noise (by preventing vibrations F28F 2265/30)
F28F 2265/30
.
for preventing vibrations
F28F 2265/32
.
for limiting movements, e.g. stops, locking means
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F28F 2270/00
Thermal insulation; Thermal decoupling
F28F 2270/02
.
by using blind conduits
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F28F 2275/00
Fastening; Joining
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F28F 2275/02
.
by using bonding materials (brazing F28F 2275/04); by embedding elements in particular materials
F28F 2275/025
. .
by using adhesives
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F28F 2275/04
.
by brazing (brazing heat exchangers B23K 1/0012)
F28F 2275/045
. .
with particular processing steps, e.g. by allowing displacement of parts during brazing or by using a reservoir for storing brazing material
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F28F 2275/06
.
by welding (welding heat exchangers L23K101/14)
F28F 2275/061
. .
by diffusion bonding
F28F 2275/062
. .
by impact pressure or friction welding
F28F 2275/064
. .
by induction welding or by using microwaves
F28F 2275/065
. .
by ultrasonic or vibration welding
F28F 2275/067
. .
by laser welding
F28F 2275/068
. .
by explosive welding
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F28F 2275/08
.
by clamping or clipping
F28F 2275/085
. .
with snap connection
F28F 2275/10
.
by force joining
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F28F 2275/12
.
by methods involving deformation of the elements
F28F 2275/122
. .
by crimping, caulking or clinching
F28F 2275/125
. .
by bringing elements together and expanding
F28F 2275/127
. .
by shrinking
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F28F 2275/14
.
by using form fitting connection, e.g. with tongue and groove
F28F 2275/143
. .
with pin and hole connections
F28F 2275/146
. .
with bayonet connections
F28F 2275/16
.
with toothed elements, e.g. with serrations
F28F 2275/18
.
by using wedge effect
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F28F 2275/20
.
with threaded elements
F28F 2275/205
. .
with of tie-rods
F28F 2275/22
.
by using magnetic effect
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F28F 2280/00
Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
F28F 2280/02
.
Removable elements
F28F 2280/04
.
Means for preventing wrong assembling of parts
F28F 2280/06
.
Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections
F28F 2280/08
.
Tolerance compensating means
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F28F 2280/10
.
Movable elements, e.g. being pivotable (elements specially adapted for movements F28F 5/00)
F28F 2280/105
. .
with hinged connections
This page is owned by Office of Patent Classification.
Last Modified: 04/16/2013 4:31:16 PM