An electric radiator (1) for space heating comprises a body (2) provided with an inner cavity (3) and outer heat exchange surfaces (4); an electric power heating element (5) housed in the cavity (3); an electric power supply connection (6) connectable to an external power network; and a control unit (7) connected to the power supply connection (6) and to the heating element (5) for controlling the power supply of the heating element (5); the control unit (7) includes a power controller (9), configured to detect the power supplied to the heating element (5) and to operate, when it detects a power supplied to the heating element (5) greater than a preset threshold value, to limit the energy supplied to the heating element (5).
A high efficiency heating device (1) has a body (2) comprising an inner chamber (3) in which a heating liquid circulates; connections (16) communicating with the chamber (3) and extending from the body (2); and a front plate (4) having an outer face (9) facing in use the space to heat and defining a main front heat exchange surface (10) of the device (1); the chamber (3) is delimited by a pair of main walls (24, 25) facing each other and by a closed loop perimeter edge (7) connecting the main walls (24, 25); the chamber (3) has a ratio between surface and volume, expressed in dm2 and dm3, respectively, greater than or equal to 23.
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
F28D 1/03 - 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 with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
A heating device (1) has a body (2) made of aluminium or an aluminium alloy, comprising an inner chamber (3) in which a heating liquid circulates; connections (16) communicating with the chamber (3) and extending from the body (2); and a first heat exchange plate (4), having an outer face (9) facing in use the space to heat and defining a first heat exchange surface (10) of the device (1), and an inner face (8), opposite to the outer face (9) and facing the chamber (3); the plate (4) extends directly from the chamber (3).
F28D 1/03 - 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 with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
A heating device (1) has a body (2) made of a heat conductive material, for example aluminium, comprising an inner chamber (3) crossed by a heating liquid; connections (16) communicating with the chamber (3) and extending from the body (2); and a first heat exchange plate (4) having an outer face (9) facing in use the environment to be heated and defining a first heat exchange surface (10) of the device (1), and an inner face (8), opposite to the outer face (9) and directed toward the chamber (3); the plate (4) is joined to the chamber (3) by a rod (29) having a depth, measured between the inner face (8) of the plate (4) and an outer surface (29a) of the chamber (3) facing the inner face (8) of the plate (4), smaller than 10 mm along at least a longitudinal portion (29b) of the rod (29).
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
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
A reinforced water chamber heating device (1) has a body (2) made of a heat conducting material, for example aluminium, comprising an inner chamber (3) in which, when in use, a heating liquid circulates and connections (16) communicating with the chamber (3) and extending from the body (2); inside the chamber (3) there are ties (33) which extend between a pair of opposite walls (24, 25) of the chamber (3) and are integral with respective inner surfaces (26, 27) of both of the walls (24, 25).
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
F28D 1/03 - 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 with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
6.
HEATING DEVICE AND MODULAR HEATING SYSTEM THAT CAN BE ASSEMBLED IN MODULAR FORM IN THE INSTALLATION STEP
A liquid circulation heating device (1) for modular assembly in the installation step, comprises at least one body (2) provided with an inner chamber (3), in which a heating liquid circulates, and with a front plate (4), having an outer face (9) facing in use the space to heat and defining a first heat exchange surface (10); and connections (16) communicating with the chamber (3) and extending from the body (2); the front plate (4) delimits the chamber (3) at the front and has an inner face (8), opposite to the outer face (9) and facing the chamber (3) and wet by the heating liquid; and the connections (16) project from a rear plate (5), opposite to the front plate (4) and delimiting the chamber (3) at the back; and the connections (16) are substantially perpendicular to said rear plate (5).
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 3/12 - Elements constructed in the shape of a hollow panel, e.g. with channels
F28D 1/03 - 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 with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
A radiator element (1) in particular made of die-cast aluminium, has a substantially tubular metal body (3) made of and comprising at least one pair of transverse joint sleeves (6a, 6b) that extend on opposite sides of the body (3) and are aligned along a transverse axis (Y); the sleeves (6a, 6b) having, at respective free ends (8), respective front annular surfaces (15a, 15b) substantially transversal with respect to the axis (Y) and delimiting respective openings (9); the front annular surfaces (15a, 15b) are rolled burnished surfaces, i.e. surfaces polished by a roller burnishing process.
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
B21C 37/30 - Finishing tubes, e.g. sizing, burnishing
8.
CONNECTION KIT FOR CONNECTING A HEATING RADIATOR TO A PLUMBING SYSTEM
A connection kit (20) for connecting a heating radiator to a plumbing system comprises: a pair of joint elements (23), attachable in a fluid-tight manner to respective end parts (7) of respective adjacent radiator elements (2) of the radiator (1); and a plug (24), insertable through one or more transverse connecting sleeves (5) of the radiator (1) and in a nipple (12), which joins a pair of transverse connecting sleeves (5) of two adjacent radiator elements (2), for being positioned between the joint elements (23); the plug (24) is provided with screwing members (40) shaped so as to cooperate with an inner surface of the nipple (12) to be screwed inside the nipple (12); and with at least one sealing member (43) cooperating with the nipple (12) for separating in a fluid-tight manner the two sleeves (5) joined by the nipple (12).
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F24D 19/00 - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMSDOMESTIC HOT-WATER SUPPLY SYSTEMSELEMENTS OR COMPONENTS THEREFOR Details
F16L 27/08 - Adjustable jointsJoints allowing movement allowing adjustment or movement only about the axis of one pipe
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
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
9.
CONNECTION DEVICE FOR CONNECTING A HEATING RADIATOR TO A PLUMBING SYSTEM
A connection device (20) for connecting a heating radiator to a plumbing system comprises a joint element (23) and a service tube (24); the joint element (23) comprises an insert (33) insertable into an end part (7) of a radiator element (2) and provided with a delivery opening (31) and a return opening (32); and a connecting body (34) provided with an inlet (27) and an outlet (28), connectable to respective delivery and return pipes of the plumbing system; the service tube (24) is insertable into a transverse duct (11) of the radiator (1) and extends between a first axial end (51), provided with a coupling portion (53) for connecting the tube (24) to the delivery opening (31) of the joint element (23), and a second axial end (52), provided with a sealing device (55) fitted around the tube (24) for cooperating in a fluid-tight manner with an inner lateral surface (56) of the transverse duct (11).
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F24D 19/00 - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMSDOMESTIC HOT-WATER SUPPLY SYSTEMSELEMENTS OR COMPONENTS THEREFOR Details
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 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
10.
TUBE RADIATOR FOR HEATING AND METHOD FOR PRODUCING A TUBE RADIATOR FOR HEATING
A tube radiator (1) for heating comprises a pair of rails (2), provided with respective pluralities of holes (13) axially spaced apart from one another along the rails (2); and a plurality of tubes (3) positioned between the rails (2) and joined to the rails (2) at respective axial ends (21) of the tubes (3), inserted in respective holes (13); the ends (21) of the tubes (3) being fastened to the rails (2) via respective mechanical interference couplings (30); each coupling (30) is formed by a coupling portion (24) of a tube (3), at least partially tapered, and by a seat (14), formed in a hole (13) and in which the coupling portion (24) is inserted with radial interference; each coupling (30) is also sealed in a fluid- tight manner, for example by gluing.
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
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
11.
METHOD FOR JOINING ALUMINIUM COMPONENTS, IN PARTICULAR FOR CLOSING AN END PART OF A HEATING RADIATOR ELEMENT, AND ALUMINIUM RADIATOR ELEMENT
In accordance with the invention, a body (2) of an aluminium heating radiator element (1), comprising a substantially tubular end part (6) provided with a bottom opening (8), is closed by a cap (20) via a thermo-electric melting process; the end part (6) and the cap (20) are provided with respective melting portions (21, 22) having respective contact edges (23, 24) which are substantially equal in shape and dimensions, so as to reach the melting state at the same time during the thermo-electric melting process.
A method for manufacturing radiator elements for heating, in particular aluminium radiator elements comprising the steps of: providing a base body (3), extending substantially along a longitudinal axis (A), and a head (7); arranging the head (7) on the base body (3) so as to bring to contact with each other the respective connection portions (26, 27) of the base body (3) and of the head (7), and to overlap respective contact surfaces (28, 29) of the connection portions (26, 27), set and overlapped and in contact with each other parallel to a longitudinal plane (P) of the element (2); fixing the contact surfaces (28, 29) to each other, for example by means of a welding and/or melting process or by means of gluing.
A double-chamber heating radiator element (1) made of die die- casted aluminium has a body (2) made of die-casted aluminium and comprising two internal water chambers (5, 6) for water circulation, substantially parallel to each other, a first and a second joint conduit (8, 9), respectively arranged at a first and at a second end (3, 4) of the body (2) between two opposite lateral sides (10) of the body (2) and substantially parallel to each other and perpendicular to the chambers (5, 6), and an auxiliary conduit (7), that is arranged at the first end (3) of the body (2) and is substantially perpendicular to the chambers (5, S) and to the joint conduits (8, 9), and connects the chambers {5, 6) to each other and to the first joint conduit (8) set at the same first end (3) of the body (2).
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
14.
HEATING RADIATOR ELEMENT AND METHOD FOR CLOSING AN END PART OP A HEATING RADIATOR ELEMENT
A heating radiator element (1) has a body (3) provided with an internal water chamber (4) for water circulation and comprising a substantially tubular end part (2) extending along an axis (A) and having a bottom opening (6) delimited by an edge (7) and closed by a plug (20), which is housed in a seat (10) formed inside the end part (2); the seat (10) has one radially inner axial shoulder (11), facing the chamber (4), and a contact element (14), facing and opposite to each other; the plug (20) rests in abutment against the contact element (14) and comprises a connecting portion (30) that is widened radially outwards and engages the shoulder (11) of the seat (10) so as to clamp the plug (20) between the shoulder (11) and the contact element (14).
A radiator element (1) for heating, in particular made of diecasted aluminum, extends along a longitudinal axis (A) and comprises a substantially tubular body (2), at least one baffle plate (3) that projects from the body (2) and is positioned along a middle plane (P) of the element (1), and a plurality of heat exchange fins (4) that project from the baffle plate (3); the baffle plate (3) has differentiated thickness, including zones (30) having different thicknesses, the thickness of the baffle plate (3) changes in longitudinal direction, i.e. in a direction parallel to the axis (A), and/or in transverse direction, i.e. along axes perpendicular to the axis (A) and lying on the plane (P).
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28D 1/02 - 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 with the heat-exchange conduits immersed in the body of fluid
F28D 1/00 - 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
16.
HEATING RADIATOR ELEMENT MADE OF DIE-CAST ALUMINIUM
A heating radiator element (1) made of die-cast aluminium, extending along a longitudinal axis (A) and having a monolithic die-cast aluminium structure (15), has a tubular body (2) and connections (7) which protrude from opposite lateral sides (20) of the body (2) along respective central axes (X) to connect the element (1) to other similar elements and/or to an external hydraulic system; at least one connection (7) arranged at an upper end (3) of the element (1) has a continuous annular lateral surface (21), without radial projections and defining an annular channel (22) which completely surrounds the connection (7) and is delimited at the rear by the side (20) of the element (l).
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 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
17.
HEATING RADIATOR ELEMENT MADE OF DIE-CAST ALUMINIUM
A heating radiator element (1) made of die-cast aluminium extends along a longitudinal axis (A) and has a monolithic aluminium structure (15), comprising a tubular body (2) and connections (7) which protrude from opposite sides of the body (2); the structure (15) is internally provided with a water circuit (16) for the circulation, in use, of a stream of water, while the volumes available for passage of the air around the structure (15) define an air circuit (17); the aluminium structure (15) and the water circuit (16) define heat exchange means such as to increase the aluminium/air heat exchange with respect to the water/aluminium heat exchange, increasing the volume of the air circuit (17) with respect to the volume generically available and specifically with respect to the volume of the water circuit (16).
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
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
18.
AN ADAPTER DEVICE FOR CONNECTING A RADIATOR ELEMENT TO A PLUMBING SYSTEM
An adapter device (10) for connecting a radiator element (1) to a plumbing system comprises a connection body (13), provided with a first and a second ducts (27, 28) having respective openings (21, 22) alternately usable as an inlet and >an outlet of the device (10) and connectable to respective pipes (11, 12) of the plumbing system, and an insert (14), joined to the connection body (13) and projecting from an upper face (16) of the connection body (13) substantially along an axis (X); the insert (14) comprises a main portion (45) insertable in a water-tight manner in a substantially tubular end part (6) of the radiator element (1) and is internally provided with a delivery conduit (37) and a return conduit (38), respectively connected to the first and to the second ducts (27, 28) of the connection body (13) or vice versa. The insert (14) has a through transverse hollow (54) between two opposite lateral sides of the insert (14) and positioned crosswise to the axis (X) and eccentric with respect to the axis (X).
A heating radiator element (1) has a base body (2) and at least one front or rear heat-exchange plate (6, 7), which extends longitudinally along an axis (Z) and has a pair of longitudinal opposite lateral edges (11) and a pair of opposite faces (13, 14); the plate (6, 7) has a plurality of cuts (18) formed orthogonally passing between the opposite faces (13, 14) of the plate and delimiting a plurality of plate portions (17), in particular three or more plate portions, arranged coplanar and aligned parallel to the axis (Z).
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
A heating radiator element (1) comprises a base body (2), which extends substantially along a main axis (X) between two opposite axial ends provided with respective transverse connection sleeves (5), and at least one set (26) of fins (25), which extend from a side (9) of the body (2), are arranged on one side of a centre plane (P) of the element (1), extend along respective axes (A) substantially parallel to the main axis (X), and are separated by grooves (28); the number of the fins (25) and their surface are selected in such to way as to have high efficiency of heat exchange: the element (1) consequently comprises an adequate number of surface fins (25) sufficient to guarantee a good value of thermal yield.
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
21.
HEATING RADIATOR ELEMENT, IN PARTICULAR MADE OF DIE-CAST ALUMINIUM, AND METHOD FOR CLOSING AN END PART OF A HEATING RADIATOR ELEMENT
An element (1) of a heating radiator has a substantially tubular end part (10), which extends along an axis (A) and has a bottom opening (12) closed by a plug (20); a radial seal ring (21) is set within the end part (10) and radially set between an external lateral surface (22) of the plug (20) and an internal lateral surface (23) of the end part (10); the plug (20) is mechanically coupled to the end part (10) via at least one connection portion (19), which is constituted by a free-end portion (18) of the end part (10) that is plastically deformed around a perimetral edge (35) of the plug (20) to grip the plug (20) against the end part (10).
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
22.
HEATING RADIATOR ELEMENT AND METHOD AND DEVICE FOR CLOSING AN END PART OF A HEATING RADIATOR ELEMENT
An element (1) of a heating radiator has a body (2), provided with an internal chamber (4) for water circulation and has a substantially tubular end part (10), which extends along an axis (A) and is closed by a plug (20); the end part (10) has a radially outer collar (18) around the opening (12) and a pair of flat and parallel opposite faces (19), substantially orthogonal to the axis (A) and at least partially overlapping in axial projection; the plug (20) is mechanically fastened to the collar via a pair of parallel, flat, opposite fixing surfaces (29), which face one another and are orthogonal to the axis (A) and are directly in contact and axially gripped and squeezed against respective faces (19) of the collar (18).
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
23.
TOTAL ANTI -CORROSION PROTECTION HEATING RADIATOR ELEMENT, AND METHOD OF ANTI -CORROSION TREATMENT OF HEATING RADIATOR
A heating radiator element (1) having a body (2) made of die -cast aluminium and provided with an inner chamber (5) for passing the water, delimited by inner surfaces (6) of the aluminium body (2), is provided with a protective coating (51) made of an anti- corrosion polymeric coating material applied to every inner surface (6) of the aluminium body (2) so as to completely coat the chamber (5), for protecting in use the inner surfaces (6) of the aluminium body (2) against the contact with water. The application of the protective coating (51) is carried out by filling the chamber (5) with a treatment composition containing the polymeric coating material, and then draining the chamber (5) once the coating material has adhered to the inner surfaces (6) of the chamber (5).
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 rubberPreventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of plastics materialPreventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of varnish
F28D 1/053 - 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 with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
A heating radiator element (1) has a body (2) made of die -cast aluminium and provided with an inner chamber (5) for water circulation, delimited by inner surfaces (6) of the aluminium body (2); the inner chamber (5) is entirely coated with a protective coating (51) made of an anti- corrosion polymeric coating material which protects in use the inner surfaces (6) of the aluminium body (2) against the contact with water; the body (2) has an end part (25) which extends beyond a pair of transversal coupling sleeves (9), connected to the chamber (5) by means of respective holes (29) delimited by peripheral edges (30), and having a bottom opening (27) closed by a cap (28); the cap (28) has a closing surface (33) arranged within the end part (25) very close to the holes (29) which connect the sleeves (9) to the chamber (5) and specifically substantially tangent to the holes (29).
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
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 rubberPreventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of plastics materialPreventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of varnish
patents