Abstract: The system includes a thermal probe with a heat-sensitive element, a fluid-tight plunger body, shaped to completely wrap the heat-sensitive element of the probe, a probe support including two orifices for joining the system to the duct, linked by an inner channel substantially axially extending in a main flow direction of the fluid in the support and including a radial opening through which the plunger body is configured to be at least partially submerged inside the inner channel. More particularly, the inner channel is delimited by a tubular wall having an inner surface with a depression located facing the opening in order to limit singular pressure losses of the fluid likely to be generated by the presence of the plunger body in the fluid by defining a flow pathway of the fluid around the plunger body.

Abstract: This valve includes a first chamber, a second chamber, a seat with a liquid passage, a plug movable between i) an open position and ii) a closed position, and a biasing member for urging the plug toward the closed position. The valve includes an actuating member having a face which sustains an actuating pressure. The actuating member is movable between i) an actuation position for opening the plug and ii) a rest position. The valve operates, selectively: in a feed mode, where the plug is open and the actuating member is at rest, the liquid flowing in one direction throughout the second chamber, or in a latch mode, where the plug is closed and the actuating member is at rest, no liquid flowing in the valve, or in a drain mode, where the plug is open, the liquid flowing in the reverse direction throughout the second chamber.

Abstract: A measuring device that measures the level of fluid in a tank, for example a level of an aqueous urea solution in a tank for catalytic converters of combustion engines. The measuring means include: at least one sensor including a capacitive element electrically coupled to an oscillator configured to deliver a signal Si whose frequency FiPAD is a function of the capacitance of the capacitive element; at least one sensor being intended to be disposed outside of the tank, so that the capacitance of the capacitive element varies based on the level n of the fluid, when the level is comprised between a first threshold hi-min and a second threshold hi-max; a processing module, coupled to at least one sensor, and configured to determine the level n of fluid in the tank based on the frequency of the signal Si.

Abstract: A safety device intended to detect a leakage in a dry area of an automotive liquid used in a fluid circuit onboard a vehicle, the automotive liquid containing at least one dangerous substance other than water, such as urea, the device including a detection cell sensitive, on the one hand, to the presence of a liquid in the dry area and, on the other hand, to the possible dangerous substance content of the liquid, the device also including a selective analysis unit, capable of distinguishing on the one hand whether the detection cell is in the presence of a liquid or not, and on the other hand, in the presence of liquid, whether the present liquid corresponds to the automotive liquid containing the dangerous substance or to another liquid, called neutral liquid, such as a water condensate.

Abstract: The device comprises a case body comprising a base body provided with a chamber for measuring the fluid and an electrical connector body, assembled to delimit together a housing internal to the case body, a detection element, an intermediate part for positioning the detection element including a transverse space for receiving the detection element and an environment gasket for sealing the internal housing with respect to the external environment. The part and the connector are shaped to cooperate by nesting in order to ensure a relative positioning of the part relative to the connector body and in a nested position, the part and the connector delimit together an external peripheral groove configured to receive the environment gasket.

Abstract: A method for manufacturing an injection rail subjected to an inner relative pressure, comprises the following steps: providing an injection rail body, comprising at least one end to be closed, providing a plug shaped so as to close the end of the body, assembling the plug into the end of the body, positioning the assembly within a mold cavity in which an overmolding area is at least contiguous with a contact area defined by a portion of the plug and a portion of the end of the conduit body are in contact with each other, the overmolding area being shaped so as to delimit the shape of a junction part configured to fixedly attach the plug into the end of the conduit body, filling the overmolding area by matter injection in order to form the junction part, the overmolding area comprising a matter injection inlet opening into the contact area.

Abstract: A measurement device has two electrodes in the liquid forming a capacitor the capacitance of which depends on the height of the liquid, a microcontroller connected to an electrode and having a capacitance determination circuit for determining first and second values of the capacitance of the capacitor respectively during charging and discharging of the capacitor, an oscillator circuit for generating signals at a reference frequency when the electrodes are not connected to the microcontroller, then at a variable frequency dependent on the height of the liquid when the electrodes are connected to the microcontroller. The microcontroller further includes a programmable logic device configured into a comparator circuit, and a frequency determination circuit connected to the programmable logic device so as to determine the variable frequency from the reference frequency and from the signals of the programmable logic device.

Abstract: A pressure measurement device has: a first chamber coupled to at least one fluid utilization unit, a second chamber coupled to a vacuum source, a seat with a passage for the fluid between the first and the second chamber, a plug for allowing or blocking the fluid flow through the passage, a retaining member for retaining the plug against the seat, a pressure sensor, and a measurement cavity coupled to the first chamber. The retaining member has a channel arranged to couple the first chamber and the measurement cavity.