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公开(公告)号：US20230007738A1
公开(公告)日：2023-01-05
申请号：US17756621
申请日：2020-12-03
发明人： Mario Eusebio , Stefano Zanella , Federico Zoppas
摘要： An electric heater for heating a substance, in particular for a tank for a system for reducing the environmental pollution of a motor vehicle; the electric heater comprising a metal sheet adapted to generate heat when it is crossed by an electric current; two polymeric layers between which the metal sheet is arranged; at least one PTC layer, having a positive temperature coefficient, which at least partially coats the metal sheet; wherein the two polymeric layers are hermetically sealed to each other, defining a casing which prevents the substance to be heated from coming into contact with the metal sheet; wherein said at least one PTC layer has a thickness from 5 to 50 μm; wherein said metal sheet is in contact, in particular directly in contact, with both the polymeric layers.
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公开(公告)号：US11956866B2
公开(公告)日：2024-04-09
申请号：US17260663
申请日：2019-07-19
CPC分类号： H05B3/82 , H05B3/30 , F01N2240/16 , H05B2203/003 , H05B2203/014
摘要： 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).
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公开(公告)号：US11805573B2
公开(公告)日：2023-10-31
申请号：US16620978
申请日：2018-06-13
发明人： Federico Zoppas , Stefano Zanella , Sandro Marcer , Mario Eusebio
CPC分类号： H05B1/0297 , F02B47/02 , H01C1/01 , H01C1/02 , H01C10/10 , H01C17/00 , H05B3/82 , F01N2610/00 , F01N2610/10 , F01N2610/1406 , H05B2203/02 , H05B2203/021
摘要： A flexible resistor including a support made of electrically insulating material; at least one track made of an electrically conductive material incorporated in the support, and configured to be connected to an electric energy source; a foil made of electrically conductive material, having a surface fixed to a first face of the support, and a plurality of wings defined by foil portions cut and folded transversally to the surface.
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公开(公告)号：US10724547B2
公开(公告)日：2020-07-28
申请号：US16320973
申请日：2017-07-27
摘要： 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.
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公开(公告)号：US20190162204A1
公开(公告)日：2019-05-30
申请号：US16320973
申请日：2017-07-27
摘要： 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.
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