Abstract: An electrical heater device comprises an heating element, which includes two electrodes and a heating body made of a polymer-based material having a PTC effect, in contact with the electrodes. Each electrode comprises a meshed structure, which extends in a length direction and in a width direction, and is embedded at least partially in the heating body. Each electrode further comprises an electrical-distribution element which is fixed to the meshed structure and includes a distribution portion that extends in the length direction, or in the width direction, or in both the length and width directions of the meshed structure.

Abstract: A valve (1) for controlling a flow of a fluid comprises: – a valve body having at least one first body part (2) made of a moulded plastic material; – a chamber for passage of the fluid (6), defined within the first body part (2) and comprising at least one fluid inlet (6a) and at least one fluid outlet (6b); – a valve seat (7) defined within the chamber for passage (6) of the fluid; – means for shutting off the fluid (8-9), which can be displaced relative to the valve seat (7) in order to control flow of the fluid; and – a compensation element prearranged for compensating a possible increase in volume and/or pressure of the fluid. The compensation element comprises a compensation body (26) made of an elastically deformable and/or compressible material, the moulded plastic material of the first body part (2) being stiffer than the elastically deformable and/or compressible material.

Abstract: An electrical heating device comprises: a first electrode layer (13), made of electrically conductive material; a second electrode layer (14), made of electrically conductive material; and a heating layer, made of a material having a PTC effect, wherein the first electrode layer (13) and the second electrode layer (14) face one another, with at least one part of the heating layer that is set between the first electrode layer (13) and the second electrode layer (14), in contact with them.

Abstract: A semi-finished product of an electric heater device has a casing body (2) defining a housing for at least one electric heater. The casing body (2) has a first or predefined configuration, in particular a substantially planar, or plate-like, or two-dimensional configuration, and is prearranged for being folded in substantially predetermined areas (1a), which define in the casing body (2) a plurality of regions (4, 5, 6) that are at least in part relatively stiff and are suitable to be folded with respect to one another in one said folding area (1a). In this way, a second or different configuration, in particular a substantially three-dimensional configuration, can be bestowed upon the casing body (2).

Abstract: A semifinished product of an electric heater device (1) has a structure that extends in a length direction (L) and that comprises: —two connection bodies (2), which substantially extend alongside one another or parallel to one another in the length direction (L) and are at least in part flexible or deformable in the length direction (L); and —a plurality of heating bodies (3), each heating body (3) including a material having a PTC effect. The heating bodies (3) are set at a distance from one another in the length direction (L) and generally extend in a direction transverse to the length direction (L). The material having a PTC effect is a polymer-based material that is in electrical contact with the at least two connection bodies (2). Each of the at least two connection bodies (2) comprises electrical- and mechanical-connection parts (2a), which have a mesh structure that is at least partially embedded or englobed in the polymer-based material.

Abstract: An electrical heater device comprises an heating element, which includes two electrodes and a heating body made of a polymer-based material having a PTC effect, in contact with the electrodes. Each electrode comprises a meshed structure, which extends in a length direction and in a width direction, and is embedded at least partially in the heating body. Each electrode further comprises an electrical-distribution element which is fixed to the meshed structure and includes a distribution portion that extends in the length direction, or in the width direction, or in both the length and width directions of the meshed structure.

Abstract: Component of tank of liquid additive of system for treating exhaust gases of internal combustion engine, has body positioned in fluid-tight way at opening of the tank and incorporates plurality of functional devices for managing liquid additive to be delivered to treatment system. Body of tank component is moulded using plastic material chemically resistant to liquid additive and is provided with at least one passageway for liquid additive. The plurality of functional devices comprises pump and pressure sensor having pressure-sensitive element. Passageway comprises delivery path for the liquid additive, which is defined at least in part in first wall of body of tank component and has inlet end configured for connection to delivery duct of the pump. Defined at outer side of first wall is at least one seat for positioning at least one part of pressure sensor.

Abstract: An electrical heating device comprises: a first electrode layer (13), made of electrically conductive material; a second electrode layer (14), made of electrically conductive material; and a heating layer, made of a material having a PTC effect, wherein the first electrode layer (13) and the second electrode layer (14) face one another, with at least one part of the heating layer that is set between the first electrode layer (13) and the second electrode layer (14), in contact with them.

Abstract: An electrical heating device (10) comprises: a first electrode layer (13), made of electrically conductive material, a second electrode layer (14), made of electrically conductive material, a heating layer (15) made of at least one polymer-based material, the heating layer (15) having two opposite major sides, a casing (10a) made at least in part of polymer-based electrically insulating material. The first electrode layer (13) and the second electrode layer (14) are each associated at a respective major side of the heating layer (15), with at least one part (15?) of the heating layer (15) that is set between the first electrode layer (13) and the second electrode layer (14), in contact with them. The casing (10a) comprises at least one first casing layer (11) and one second casing layer (12), each facing a respective major side of the heating layer (15) and being made at least in part of a polymer-based material.

Abstract: Component of tank of liquid additive of system for treating exhaust gases of internal combustion engine, has body positioned in fluid-tight way at opening of the tank and incorporates plurality of functional devices for managing liquid additive to be delivered to treatment system. Body of tank component is moulded using plastic material chemically resistant to liquid additive and is provided with at least one passageway for liquid additive. The plurality of functional devices comprises pump and pressure sensor having pressure-sensitive element. Passageway comprises delivery path for the liquid additive, which is defined at least in part in first wall of body of tank component and has inlet end configured for connection to delivery duct of the pump. Defined at outer side of first wall is at least one seat for positioning at least one part of pressure sensor.

Abstract: A heater device comprises a supporting body (5) and a plurality of heating elements in the supporting body (5). Each heating element includes a first electrode (14), a second electrode (15), and a material having a PTC effect (16) arranger at least in part between the two electrodes (14, 15). The first electrodes (14), respectively the second electrodes (15), are set at a distance apart in the supporting body (5), with the first electrodes (14) generally parallel to and facing the second electrodes (15). The first electrodes (14) are connected to a first common electrical conductor element (17), and the second electrodes (15) are connected to a second common electrical conductor element (18), and the material having a PTC effect (16) comprises a plastic-based or polymeric-based material moulded or overmoulded at least in part between facing surfaces of the first and second electrodes (14, 15).

Abstract: An electric heater for fuel of endothermal engines, in particular for fuel systems called “common rail” and the like, includes a heating part and a terminal adapted to be associated with one end of the hollow body of a fuel feeding duct; advantageously, the terminal is at least partly made of plastic material. A fuel feeding duct to which the heater is applied, as well as to a fuel warm-up device, are also provided.

Abstract: An electric heater for fuel of endothermal engines, in particular for fuel systems called “common rail” and the like, includes a heating part and a terminal adapted to be associated with one end of the hollow body of a fuel feeding duct; advantageously, the terminal is at least partly made of plastic material. A fuel feeding duct to which the heater is applied, as well as to a fuel warm-up device, are also provided.

Abstract: A switch for vehicles, in particular of the type adapted to be actuated by a linkage or kinematic system of the vehicle, used for signaling an operating condition, includes: a body, electric terminals housed within the body, an actuation element at least partly movable within the body when subjected to a control action, so as to put at least two of the electric terminals in electric contact with each other, wherein the actuation element is at least partly deformable when a higher stress is applied thereto than necessary for closing the contact between the electric terminals.