Abstract: An electric heater (1, 1?) for heating a substance inside a tank (100), the electric heater (1, 1?) comprising: —at least one resistive wire (4) adapted to be connected to a source of electricity, said at least one resistive wire (4) being provided with a sheath (41) made of electrically insulating material; —at least a first thermally conductive sheet (5) made of metal fixed to the at least one resistive wire (4); —at least two protective layers (2, 3) made of polymer material, fixed to each other; wherein the at least one resistive wire (4) and the at least a first sheet (5) are arranged between the at least two protective layers (2, 3).

Abstract: An electric heater including a metal body, in which a first pipe and a second pipe are provided in the metal body. The first pipe and second pipe are mutually distinct so as to be crossed by two distinct flows of fluid to be heated. A first heating stretch, a second heating stretch and a third heating stretch are arranged in the metal body. The first pipe and the second pipe are arranged between the first heating stretch and the second heating stretch. The third heating stretch is proximal to the second pipe and distal from the first pipe. The second pipe is arranged between the first pipe and the third heating stretch.

Abstract: An induction heater for a cook top comprising: —a first electrically insulating sheet (1); —a second electrically insulating sheet (2); —one or more inductors (5) arranged on a same plane between the first sheet (1) and the second sheet (2), each inductor (5) comprising a single electrically conductive track defining a flat spiral coil provided with a plurality of turns (15); wherein the thickness (t) of each inductor (5) is comprised between 100 and 500 ?m; and wherein the ratio between the distance (g) between the consecutive turns (15) of each inductor (5) and the thickness (t) of each inductor (5) is lower than or equal to 1.5.

Abstract: A heating and capacitive sensing device for a steering wheel of a motor vehicle. The device includes a support made from an electrically insulating flexible material to which at least an electrically conductive first track and at least an electrically conductive second track are fixed. An electronic control unit including a capacitance reading module is electrically connected to the at least one second track. The electronic control unit is configured to control the at least one first track and at least one second track, so that the at least one first track is suited to generate heat for heating the steering wheel, and at least one second track is configured to operate as a capacitive sensor means by sending capacitance values to the electronic control unit.

Abstract: The present invention relates to a method and device for measuring the temperature in power resistors based on the measurement of the high-frequency circuit parameters of said resistor. The present invention excludes the use of thermocouples, dedicated temperature sensors or thermo chambers.

Abstract: A cover (1) for centrifugal pump comprising a heating element (8) which has a heating stretch (10) and two end stretches (12) connected to the heating stretch (10), in which the heating element (8) crosses the cover (1) so that the heating stretch (10) is below the cover (1) and the two end stretches (12) are above the cover (1), and wherein at least one first portion (14) of the heating stretch (10) is in contact with the cover (1), and wherein at least one second portion (16) of the heating stretch (10) is spaced apart from the inner face (4).

Abstract: An armored resistor (1) comprising a tubular casing (2) in which a metallic heating element (3) immersed in an electrically insulating material (4) is arranged. Furthermore, a first closing element (5) and a second closing element (6) of the tubular casing (2) are provided, in which the first closing element (5) is fluid-tightly fixed to the respective first end (7) of the tubular casing (2), and the second closing element (6) is provided with at least one at least one radial protrusion (15) which abuts on the second end (8) of the tubular casing (2), and which delimits at least one passage (16) communicating with the inside of the tubular casing (2), adapted to allow the passage of the electrically insulating material during the manufacturing of the armored resistor.

Abstract: A cover (1) for a centrifugal pump which comprises a heating element (8), which has a heating stretch (10) and two end stretches (12) connected to the heating stretch (10), wherein the heating element (8) crosses the cover (1) so that the heating stretch (10) is under the cover (1) and the two end stretches (12) are over the cover (1), wherein at least one safety device (20), sensitive to the temperature of the electric resistor (8), fixed to the outer face (6), is provided and at least one control device (22), sensitive to both the temperature of the liquid and the temperature of the electric resistor (8), fixed to the outer face (6), is provided, wherein at least one first portion (14) of the heating stretch (10) is in contact with the cover (1), so that the heating stretch (10) is adapted to be contact with the liquid.

Abstract: A device for heating a liquid includes a metal body, a conduit for the passage of the liquid to be heated, and one or more heating elements. The conduit and the one or more heating elements are incorporated in the body which forms a wall around the conduit and the one or more heating elements. Heat generated by the one or more heating elements is transmitted to the liquid to be heated by conduction. The body is provided with a plurality of openings which are separated from each other, having a depth equal to wall thickness. At least two first openings of the plurality of openings are on the conduit, and at least two second openings of the plurality of openings are on the one or more heating elements.

Abstract: A thermal block (100) for heating a liquid, comprises: —a tube (200) for the passage of liquid, provided with an inlet (3) and an outlet (4) and with at least one segment (200) with corrugated walls (6), —a massive block (1) co-molded outside said pipe (200) so that the inlet (3) and the outlet (4) are outside the massive block (1), —one resistive element (5) for heating the massive block (1).

Abstract: A process for the production of laminar electric resistances having plan geometry according to a predetermined pattern. The laminar electric resistances are formed by a metallic foil, a rigid first template, a trace and at least one sheet of insulating material. The trace is shaped to substantially trace the plan geometry of the predetermined pattern forming a path. The first template includes a fixing means adapted to fix the metallic foil. The trace has a height from the base between 10 and 50 mm. The process includes the steps of: fixing the metallic foil onto the first template by means of fixing means; cutting, according to a predetermined pattern, the metallic foil with a laser to obtain a cut foil; adhering a first sheet of insulating material to a surface of the cut foil which is distal from the first template; and detaching the cut foil from the first template.

Abstract: A centrifugal pump for household appliances comprising a cover (1) having:—a first face internal to the pump adapted to be in contact with an operating fluid, and a second face external to the pump, opposite to the first face and provided with an annular groove (16) forming a projection inwards of the pump,—a heating element (11) fixed in the annular groove (16),—a first support element (21) arranged on the second face and provided with a first constraint (31) adapted to be fixed to a first safety device (41), said first support element (21) being in thermal contact with said operating fluid, whereby the first safety device (41) is adapted to come in thermal contact with the operating fluid,—a second support element (22) arranged on the second face, distinct from the first support element (21) and provided with a second constraint (32) adapted to be fixed to a second safety device (42), said second support element (22) being in thermal contact with said heating element (11), whereby the second safety device (

Abstract: A radiator with reduced thermal inertia, based on the principle of phase changing, using a non-toxic, non-flammable fluid with reduced environmental impact. The radiator is provided by means of vertical pipes which engage a collector containing a pipe bundle-type exchanger with smooth or finned pipes, internally crossed by the thermo-vector fluid of the system, and which heat the intermediate vector fluid, bringing it to the biphasic state. The vector fluid evaporates, rising up the vertical pipes, flowing through the channels obtained in the extruded profiles of the vertical pipes themselves. The fluid re-descends, condensing on the walls, returning into contact with the hot pipes of the exchanger in order to re-evaporate and rise back up the vertical pipes. The film of condensed liquid provides the required heat exchange.

Abstract: A radiator of the thermosiphon type comprising a collector situated in the lowest part of the radiator, and adapted to contain an intermediate vector fluid, an external heat source, placed within the collector, wherein the intermediate vector fluid is adapted to evaporate on contact with a hot surface of the external heat source, at least one vertical tube containing therein one or more channels (4) connected to the collector and communicating with the same, characterized in that said collector and said channels are dimensioned so that each section thereof crossed by the intermediate vector fluid, excluding the thickness of the liquid film of moisture, has the smallest linear direction which is twice bigger than the diameter db of an intermediate fluid vapor bubble which, during operation, detaches itself from the hot surface of the external source during boiling of the intermediate fluid.

Abstract: A radiator in particular for room heating, comprising a control or measurement unit accommodated in a container integral with the radiator and positioned so as to sustain the heat from the radiator as little as possible, while exploiting a cool air flow drawn by the same to cool the internal circuitry defining the unit. Said container is conveniently spaced apart from the radiator by means of insulating elements and a part of the same container is formed by a heat dissipator to which one or more electronic power elements included in said circuitry are thermally connected.

Abstract: The section bar (1) for a fluid flow heater for coffee machines has a longitudinal development with two opposing ends and a first tubular cavity (A), that is accessible at the opposing ends of the section bar (1), and a second cavity (B) having an opening (O) that extends along the longitudinal development of the section bar (1). A heater (10) having an encased resistor (2, 3) integrated in the first cavity (A) of the section bar (1) and a tubular fluid circulation conduit (4) inserted into the second cavity (B) of the section bar (1) and fixed by means of bending at least one lug (B1, B2, B3) around the tubular fluid circulation conduit (4), so that the opposing ends of the tubular fluid circulation conduit (4) emerge with respect to the opposing ends of the section bar (1).

Abstract: A machine for dispensing hot beverages, e.g. coffee, comprising a liquid heater, in particular for heating water intended for human consumption, provided with a container, adapted to be at least partially filled with a first liquid to be heated, and a heating electric resistor arranged outside the container, in contact with the bottom of said container, so as to indirectly heat said first liquid through said bottom.

Abstract: Armored resistor with an end sealing element in which the electric pin (2) partially projecting from an end (1?) of the armor (1) and connected to said end by said sealing element (5) is provided with a part (22) with high roughness, i.e. knurling and/or toothing (22?, 22?, 22??) and/or a circular groove (23, 23?), moreover said end (1?) of the armor is crimped in order to compress said sealing element (5) against said zone with high roughness.

Abstract: A wall-mounted radiator comprising a support (1) adapted to make it tilting with respect to a support wall and possibly comprising blocking means (2) of the radiator to maintain it in a proximal or distal position with respect to said support wall. The support may be adapted to be associated with the radiator (3) so as to allow to adjust the fastening point so as to facilitate the installation thereof. Moreover, the support (1) may comprise a removable part (11c) in order to further simplify the installation of the radiator.

Abstract: A radiator of the thermosiphon type comprising a collector situated in the lowest part of the radiator, and adapted to contain an intermediate vector fluid, an external heat source, placed within the collector, wherein the intermediate vector fluid is adapted to evaporate on contact with a hot surface of the external heat source, at least one vertical tube containing therein one or more channels (4) connected to the collector and communicating with the same, characterized in that said collector and said channels are dimensioned so that each section thereof crossed by the intermediate vector fluid, excluding the thickness of the liquid film of moisture, has the smallest linear direction which is twice bigger than the diameter db of an intermediate fluid vapour bubble which, during operation, detaches itself from the hot surface of the external source during boiling of the intermediate fluid.