Abstract: A pressure sensor device comprises a casing (2a, 3 a) defining a chamber (20) and an inlet passage (14a, 14b) of the chamber. Accommodated in the chamber (20) is a pressure sensor (17) having a sensor body with a cavity and a membrane capable of deformation under pressure action of a fluid present in the inlet passage (14a, 14b). The device further comprises a circuit arrangement (26, 27, 30) to which the pressure sensor (17) is electrically connected, the circuit arrangement including a circuit support at least partially accommodated in the chamber (20). The sensor body is not rigidly associated to the casing (2a, 3 a) and/or to other parts of the device (26, 27, 30, 35), i.e. it is mounted elastically or in a moveable manner with respect to the casing (2a, 3 a) and/or to said other parts (26, 27, 30, 35) inside the chamber (20).

Abstract: A pressure sensor device comprises: —a casing (2a, 3a) defining a cavity (7) with an inlet passage (8a, 8b), —a pressure sensor (30) having a body accommodated in the cavity (7), for detecting the pressure of a fluid present in the inlet passage (8a, 8b), —a circuit arrangement including a circuit support (20) at least partially accommodated in the cavity (7) according to a respective laying plane, the pressure sensor (30) being mounted on the circuit support (20). Associated to the circuit support (20) is a protection body (31) surrounding the pressure sensor (30), the protection body (31) externally defining a seat for positioning a respective seal member (35), in particular a radial seal gasket, intended to cooperate with an internal surface of the casing (2a, 3 a).

Abstract: A pressure-sensor device (1) comprises: —a pressure-sensitive component (9) having a body, defined in which is a blind cavity, and having a membrane portion (9a), operatively associated to which is a detection element (R); and —a connection structure (2), which has a duct in communication with the cavity of the pressure-sensitive component (9) and is to receive a fluid, a pressure of which is to be detected. The connection structure (2) comprises a supporting body (2a) of the pressure-sensitive component (9), which defines a respective passage (2b), and a compressible element (12, 18) that is designed to be in contact with the fluid and is configured for compensating possible variations of volume thereof. The compressible element (12, 18) is positioned at least in part within the cavity (11) of the pressure-sensitive component (9) and/or in a stretch of the passage (2b) of the supporting body (2a) that is close to the cavity (11) of the pressure-sensitive component (9).

Abstract: A pressure sensor device (1) comprises: a pressure sensor (9) having a sensor body (9a) defined in which is a cavity (11) with a bottom surface (11a) belonging to a membrane portion (9?) of the body itself, a detection element operatively being associated to the membrane portion (9?), a connection structure (2) having a duct (2a, 15, 19) in communication with the abovementioned cavity (11), designed to receive a fluid a pressure of which is to be detected. The connection structure comprises a body (2) for supporting the pressure sensor (9), defining at least one respective passage (2a), and one compressible element (12) designed to be in contact with the fluid and configured to compensate possible volume variations thereof, the compressible element (12) being positioned at least partially within the cavity (11), in such a manner to substantially divide it into two opposite regions.

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.

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 pressure-sensor device (1) comprises: —a pressure-sensitive component (9) having a body, defined in which is a blind cavity, and having a membrane portion (9a), operatively associated to which is a detection element (R); and —a connection structure (2), which has a duct in communication with the cavity of the pressure-sensitive component (9) and is to receive a fluid, a pressure of which is to be detected. The connection structure (2) comprises a supporting body (2a) of the pressure-sensitive component (9), which defines a respective passage (2b), and a compressible element (12, 18) that is designed to be in contact with the fluid and is configured for compensating possible variations of volume thereof. The compressible element (12, 18) is positioned at least in part within the cavity (11) of the pressure-sensitive component (9) and/or in a stretch of the passage (2b) of the supporting body (2a) that is close to the cavity (11) of the pressure-sensitive component (9).

Abstract: A pressure-sensor device (1) comprises: —a pressure-sensitive component (9) having a body, defined in which is a blind cavity, and having a membrane portion (9a), operatively associated to which is a detection element (R); and —a connection structure (2), which has a duct in communication with the cavity of the pressure-sensitive component (9) and is to receive a fluid, a pressure of which is to be detected. The connection structure (2) comprises a supporting body (2a) of the pressure-sensitive component (9), which defines a respective passage (2b), and a compressible element (12, 18) that is designed to be in contact with the fluid and is configured for compensating possible variations of volume thereof. The compressible element (12, 18) is positioned at least in part within the cavity (11) of the pressure-sensitive component (9) and/or in a stretch of the passage (2b) of the supporting body (2a) that is close to the cavity (11) of the pressure-sensitive component (9).

Abstract: A pressure sensor device (1) comprises: a pressure sensor (9) having a sensor body (9a) defined in which is a cavity (11) with a bottom surface (11a) belonging to a membrane portion (9?) of the body itself, a detection element operatively being associated to the membrane portion (9?), a connection structure (2) having a duct (2a, 15, 19) in communication with the abovementioned cavity (11), designed to receive a fluid a pressure of which is to be detected. The connection structure comprises a body (2) for supporting the pressure sensor (9), defining at least one respective passage (2a), and one compressible element (12) designed to be in contact with the fluid and configured to compensate possible volume variations thereof, the compressible element (12) being positioned at least partially within the cavity (11), in such a manner to substantially divide it into two opposite regions.

Abstract: A pressure sensor device comprises: —a casing (2a, 3a) defining a cavity (7) with an inlet passage (8a, 8b), —a pressure sensor (30) having a body accommodated in the cavity (7), for detecting the pressure of a fluid present in the inlet passage (8a, 8b), —a circuit arrangement including a circuit support (20) at least partially accommodated in the cavity (7) according to a respective laying plane, the pressure sensor (30) being mounted on the circuit support (20). Associated to the circuit support (20) is a protection body (31) surrounding the pressure sensor (30), the protection body (31) externally defining a seat for positioning a respective seal member (35), in particular a radial seal gasket, intended to cooperate with an internal surface of the casing (2a, 3 a).

Abstract: A pressure sensor device comprises a casing (2a, 3 a) defining a chamber (20) and an inlet passage (14a, 14b) of the chamber. Accommodated in the chamber (20) is a pressure sensor (17) having a sensor body with a cavity and a membrane capable of deformation under pressure action of a fluid present in the inlet passage (14a, 14b). The device further comprises a circuit arrangement (26, 27, 30) to which the pressure sensor (17) is electrically connected, the circuit arrangement including a circuit support at least partially accommodated in the chamber (20). The sensor body is not rigidly associated to the casing (2a, 3 a) and/or to other parts of the device (26, 27, 30, 35), i.e. it is mounted elastically or in a moveable manner with respect to the casing (2a, 3 a) and/or to said other parts (26, 27, 30, 35) inside the chamber (20).

Abstract: A pressure-sensor device (1) comprises:—a pressure-sensitive component (9) having a body, defined in which is a blind cavity, and having a membrane portion (9a), operatively associated to which is a detection element (R); and—a connection structure (2), which has a duct in communication with the cavity of the pressure-sensitive component (9) and is to receive a fluid, a pressure of which is to be detected. The connection structure (2) comprises a supporting body (2a) of the pressure-sensitive component (9), which defines a respective passage (2b), and a compressible element (12, 18) that is designed to be in contact with the fluid and is configured for compensating possible variations of volume thereof. The compressible element (12, 18) is positioned at least in part within the cavity (11) of the pressure-sensitive component (9) and/or in a stretch of the passage (2b) of the supporting body (2a) that is close to the cavity (11) of the pressure-sensitive component (9).