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 sensor device for a container of a liquid substance comprises a body with a housing portion having a closing structure, the body having an inner surface and an outer surface. The housing portion is pre-arranged for assembly on the container, in such a way that a portion of the outer surface of the body faces the inside of the container to be in contact with the liquid substance, and the inner surface of the body is isolated from the inside of the container. Associated to the body is a first arrangement for detection of the level of the substance. Associated to the body of the device is a second arrangement for detection of a characteristic of the liquid substance, which comprises an emitter and a receiver of a given optical radiation. A first portion of the body of the device is made of a material designed for propagation of the given optical radiation, the emitter and the receiver being optically coupled to the inner surface of the body at the first portion.

Abstract: A capacitive level sensor device, for detecting the level of a medium contained in a container, comprises a circuit support, which extends longitudinally substantially according to level-detection axis. The circuit support has, in a detection region thereof, at least one first plurality of first capacitive elements, which comprise at least one first array of first electrodes, preferably spaced from one another along the level-detection axis, which are arranged in a position corresponding to at least one first side of a supporting structure of the circuit support. The sensor device has a casing body which comprises an electrically insulating and fluid-tight detection portion, which covers the detection region of the circuit support. The detection portion of the casing body comprises an overmoulded outer coating, made of a first electrically insulating polymeric material, which defines an outer surface of the casing body designed to be in contact with the medium the level of which has to be detected.

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: A sensor for detecting the level of a medium contained in a container, in particular a tank, comprises: an array of capacitive elements designed to be associated to the container (1), in particular so as to extend according to an axis of detection (X) of the level of the medium (L), the array of capacitive elements comprising a plurality of electrodes (J1-Jn), in particular on a face of an electrically insulating substrate (20) having a generally elongated shape, the electrodes (J1-Jn) being spaced apart from one another, in particular along the detection axis (X), and being preferably substantially coplanar with one another; at least one insulation layer (16) for insulating electrically the electrodes (J1-Jn) with respect to the inside of the container (1); and a controller (24) having a plurality of inputs. Each capacitive element comprises a set of electrodes connected together in common, in particular in parallel, each set of electrodes being connected to a respective input of the plurality of inputs.

Abstract: A sensor for detecting the level of a medium contained in a container, in particular a tank, comprises: an array of capacitive elements designed to be associated to the container (1), in particular so as to extend according to an axis of detection (X) of the level of the medium (L), the array of capacitive elements comprising a plurality of electrodes (Ji-Jn), in particular on a face of an electrically insulating substrate (20) having a generally elongated shape, the electrodes (Ji-Jn) being spaced apart from one another, in particular along the detection axis (X), and being preferably substantially coplanar with one another; at least one insulation layer (16) for insulating electrically the electrodes (Ji-Jn) with respect to the inside of the container (1); and a controller (24) having a plurality of inputs.

Abstract: A level sensor for detecting the level of a medium contained in a vessel comprises: an array of capacitive elements designed to be associated with the vessel (1), comprising a plurality of electrodes (J1-Jn), spaced apart from each other along an axis of detection (X), an insulation layer (16) for electrically insulating the electrodes (J1-Jn) with respect to the inside of the vessel (1), a controller (24) having a plurality of inputs. Each capacitive element comprises at least one of a single electrode and a group of electrodes connected in common to each other, the single electrode or the group of electrodes being connected to a respective input of the plurality of inputs. The controller (24) is prearranged for discriminating a value of electrical capacitance associated with each electrode (J1-Jn) to deduce the level of the medium present in the vessel.

Abstract: A capacitive level-sensor device, for detecting the level of at least one medium contained in a container comprises: a detection part that includes an array of capacitive elements, the array of capacitive elements comprising at least one set of electrodes on a substrate, the electrodes being set at a distance from one another according to a level-detection axis, the detection part including at least one insulating layer for electrically insulating the electrodes with respect to the medium; and a control circuit having a plurality of first inputs, electrically connected to which are the electrodes. The control circuit is prearranged for carrying out a sequential sampling of the inputs of the plurality of first inputs and for comparing a value representing the capacitance associated to each electrode with at least one corresponding reference threshold. The detection part further comprises at least one temperature sensor, connected to at least one respective second input of the control circuit.

Abstract: An electromagnetic device, such as an actuator for electrovalves or injectors, particularly for endothermal engines includes a coil winding of an electric wire covered with an insulating layer made of overmoulded plastic material. In order to prevent the electric wire from breaking at the ends thereof connected to the electric terminals, a protective insert is applied prior to the plastic moulding step. The insert is also made of thermoplastic material, so that it can melt locally together with the cover material, thereby ensuring a stable and effective union during the moulding process. The invention also relates to a process for manufacturing the device.

Abstract: A capacitive level-sensor device comprises: —a circuit substrate made of electrically insulating material (20) that extends longitudinally according to a level-sensing axis; —a first array of electrodes or capacitive elements on a sensing region (23) of the circuit substrate (20), which comprises at least one first series of first electrodes (J1-Jn) coplanar to one another at a major face of the circuit substrate (20); —a circuit, which comprises circuit components associated to a second region (24) of the circuit substrate (20); and—a casing body (14-16), which comprises at least: a sensing portion (15), which is electrically insulating and fluid-tight and coats at least the sensing region (23) of the circuit substrate (20); and a mounting portion (14, 16), which coats at least partially the second region (24) of the circuit substrate (20) and is configured for fluid-tight fixing at an opening (6) of a container (1).

Abstract: A sensor device for a container of a liquid substance comprises a body with a housing portion having a closing structure, the body having an inner surface and an outer surface. The housing portion is pre-arranged for assembly on the container, in such a way that a portion of the outer surface of the body faces the inside of the container to be in contact with the liquid substance, and the inner surface of the body is isolated from the inside of the container. Associated to the body is a first arrangement for detection of the level of the substance. Associated to the body of the device is a second arrangement for detection of a characteristic of the liquid substance, which comprises an emitter and a receiver of a given optical radiation. A first portion of the body of the device is made of a material designed for propagation of the given optical radiation, the emitter and the receiver being optically coupled to the inner surface of the body at the first portion.

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: A sensor for detecting the properties of the fuel of an internal combustion engine includes at least one pair of internal electrodes (12, 13), extending in an axial direction relative to a further or third external electrode (14) which surrounds them. The invention also relates to a fuel rail (2) to which the sensor may be mounted, and a method for detecting the properties of the fluid.

Abstract: A sensor for detecting the level of a medium contained in a container, in particular a tank, comprises: an array of capacitive elements designed to be associated to the container (1), in particular so as to extend according to an axis of detection (X) of the level of the medium (L), the array of capacitive elements comprising a plurality of electrodes (J1-Jn), in particular on a face of an electrically insulating substrate (20) having a generally elongated shape, the electrodes (J1-Jn) being spaced apart from one another, in particular along the detection axis (X), and being preferably substantially coplanar with one another; at least one insulation layer (16) for insulating electrically the electrodes (J1-Jn) with respect to the inside of the container (1); and a controller (24) having a plurality of inputs. Each capacitive element comprises a set of electrodes connected together in common, in particular in parallel, each set of electrodes being connected to a respective input of the plurality of inputs.

Abstract: A sensor for detecting the level of a medium contained in a container, in particular a tank, comprises: an array of capacitive elements designed to be associated to the container (1), in particular so as to extend according to an axis of detection (X) of the level of the medium (L), the array of capacitive elements comprising a plurality of electrodes (Ji-Jn), in particular on a face of an electrically insulating substrate (20) having a generally elongated shape, the electrodes (Ji-Jn) being spaced apart from one another, in particular along the detection axis (X), and being preferably substantially coplanar with one another; at least one insulation layer (16) for insulating electrically the electrodes (Ji-Jn) with respect to the inside of the container (1); and a controller (24) having a plurality of inputs.

Abstract: A level sensor for detecting the level of a medium contained in a vessel comprises: an array of capacitive elements designed to be associated with the vessel (1), comprising a plurality of electrodes (J1-Jn), spaced apart from each other along an axis of detection (X), an insulation layer (16) for electrically insulating the electrodes (Ji-L) with respect to the inside of the vessel (1), a controller (24) having a plurality of inputs. Each capacitive element comprises at least one of a single electrode and a group of electrodes connected in common to each other, the single electrode or the group of electrodes being connected to a respective input of the plurality of inputs. The controller (24) is prearranged for discriminating a value of electrical capacitance associated with each electrode (J1-Jn) to deduce the level of the medium present in the vessel.

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 sensing device includes at least one electrode pair (2, 3, 4) and one sensing circuit (140) connected to the electrode pair (2, 3, 4). The sensing circuit (140) switches the value of its own output voltage when a substance establishes contact across the electrodes (2, 3, 4). The device further includes one output circuit (180) connected to the output of the sensing circuit (140) and adapted to provide an output signal (s7) representative of the presence of a substance across the electrode pair (2, 3, 4). The device also allows the output signal to take different voltage and/or current and/or frequency values, in particular such that values can be discerned which are representative of the presence or level of substances and/or representative of faults of the device.

Abstract: A sensor for detecting the properties of the fuel of an internal combustion engine includes at least one pair of internal electrodes (12, 13), extending in an axial direction relative to a further or third external electrode (14) which surrounds them. The invention also relates to a fuel rail (2) to which the sensor may be mounted, and a method for detecting the properties of the fluid.