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 (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: 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: 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 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 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 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: 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: 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: Steam generator (1) is provided with an electric heating element (2) for heating water to be evaporated, consisting of an electric heating resistor (21) inserted in a profiled base (8) of a metal supporting element (7), fixed in a hole obtained in one of the vertical walls (15) of the container (4) for heating water.

Abstract: A home laundry machine (1) having an outer casing (2) and, inside said casing (2), a laundry container (3, 5) for housing the laundry to be dried, and a steam generator (15) for feeding a given amount of steam into the laundry container (3, 5), and which in turn has a tubular vaporizer (16) containing a given amount of water; a heater (19) for boiling and converting the water in said tubular vaporizer (16) into steam; and a steam exhaust pipe (20) for feeding the steam produced in the tubular vaporizer (16) into the laundry container (3, 5), and which has at least one tubular portion (20a) contacting the heater (19), so that the steam flowing along the tubular portion (20a) receives a certain amount of heat from said heater (19).

Abstract: Armoured resistor with an end sealing element in which the electric pin (2) partially projecting from an end (1?) of the armour (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 armour is crimped in order to compress said sealing element (5) against said zone with high roughness.

Abstract: Steam generator (1) is provided with an electric heating element (2) for heating water to be evaporated, consisting of an electric heating resistor (21) inserted in a profiled base (8) of a metal supporting element (7), fixed in a hole obtained in one of the vertical walls (15) of the container (4) for heating water.

Abstract: A home laundry machine (1) having an outer casing (2) and, inside said casing (2), a laundry container (3, 5) for housing the laundry to be dried, and a steam generator (15) for feeding a given amount of steam into the laundry container (3, 5), and which in turn has a tubular vaporizer (16) containing a given amount of water; a heater (19) for boiling and converting the water in said tubular vaporizer (16) into steam; and a steam exhaust pipe (20) for feeding the steam produced in the tubular vaporizer (16) into the laundry container (3, 5), and which has at least one tubular portion (20a) contacting the heater (19), so that the steam flowing along the tubular portion (20a) receives a certain amount of heat from said heater (19).