An apparatus having a shaft, a bearing sleeve for rotatably supporting the shaft, a housing, in which at least one part of the bearing sleeve is arranged, and a sealing element, which seals a gap between a wall of the housing and the bearing sleeve. The sealing element divides the gap gas-tight into a first partial space adjacent to the front side of the sealing element and a second partial space adjacent to the back side of the sealing element, the sealing element having a flexible part, which is in contact with the wall of the housing and/or the bearing sleeve, and the housing having a first barrier gas inlet for introducing barrier gas into the first partial space as well as a second barrier gas inlet for introducing barrier gas into the second partial space.

An apparatus having a shaft, a bearing sleeve for rotatably supporting the shaft, a housing, in which at least one part of the bearing sleeve is arranged, and a sealing element, which seals a gap between a wall of the housing and the bearing sleeve. The sealing element divides the gap gas-tight into a first partial space adjacent to the front side of the sealing element and a second partial space adjacent to the back side of the sealing element, the sealing element having a flexible part, which is in contact with the wall of the housing and/or the bearing sleeve, and the housing having a first barrier gas inlet for introducing barrier gas into the first partial space as well as a second barrier gas inlet for introducing barrier gas into the second partial space.

One or more techniques and/or systems are disclosed for accurately determining the volume of liquid in a container, such as after or prior to a fluid transfer into/from the container. The volume of liquid flowing through a flow meter can be measured at multiple data intervals by a flow meter. Further, the height of a liquid inside the container can be measured by a liquid level sensor at the multiple data intervals. A register can receive data indicative of the respective measurements, and the volume of liquid in the container can be determined based on the relationship between data indicative of the measurement of the volume of liquid flowing through a flow meter at the multiple data intervals and the measurement of the height of a liquid inside the container at the multiple data intervals.

A mini-spinner flowmeter measures a fluid linear velocity and/or a fluid direction of a fluid present in a hydrocarbon well. It comprises an impeller formed with a plurality of axially extending vanes longitudinally secured to a shaft, the shaft extending along a longitudinal axis, the impeller being caused to rotate at an impeller angular velocity depending on the fluid linear velocity and in a rotational direction depending on the fluid direction; and a support having a bearing positioned on each end of the shaft and a through-hole securing an optical section. The vanes are reflective such that, in use, a light energy emitted by an emitting optical fiber and reflected backward by anyone of the vanes is received by a first receiving optical fiber and/or a second receiving optical fiber, the reflected light energy containing information indicative of the fluid linear velocity and/or the fluid direction.

A turbine (1) for a conduit comprising a turbine unit (13) including a rotor (3), characterized in that the turbine (1) comprises a speed limiting device for said turbine unit (13), which device comprises at least one flexible element (4) connected to the turbine unit (13), so as to limit the flow rate of the fluid passing through the rotor (3) in order to limit the rotational speed of the rotor (3) of the turbine unit (13).

A turbine (1) for a conduit comprising a turbine unit (13) including a rotor (3), characterized in that the turbine (1) comprises a speed limiting device for said turbine unit (13), which device comprises at least one flexible element (4) connected to the turbine unit (13), so as to limit the flow rate of the fluid passing through the rotor (3) in order to limit the rotational speed of the rotor (3) of the turbine unit (13).

A flow meter for a home appliance, in particular a dishwasher or a washing machine, the flow meter comprising a control unit having a first power supply terminal, a second power supply terminal and a digital input terminal which is connected to the second power supply terminal via a limiting element; a movable element which is moved by a flow of a fluid and which comprises at least one movable magnetic element; and a two-lead magneto-sensitive unit which comprises a signal terminal connected to the digital input terminal of the control unit and a reference terminal connected to the first power supply terminal of the control unit; wherein the magneto-sensitive unit comprises a magnetic sensor element having two output terminals connected to the signal terminal and the reference terminal, and a power supply terminal; and a buffered power supply unit configured to generate a continuous auxiliary voltage from the signal terminal and the reference terminal of the magneto-sensitive unit and to provide the continuous auxiliary voltage at the power supply terminal of the magnetic sensor element.

A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

A fluid flow meter with configuration of flow generation and flow sensor is intended for measuring a flow rate of working fluid (a gas or a liquid) passing through an inner cavity. The meter is a compact measuring apparatus of a small size, resistant to disturbances and distortions in the structure of the measured fluid flow. The fluid flow meter with configuration of flow generation and flow sensor is comprised of the following components: a housing (1) having an inner chamber (2) and a depression (3) configured to generate the flow; a flow sensor (4) arranged inside the housing (1) of the gas meter for measuring the flow velocity of the fluid; an adapter (5) to adjust different diameters of flow sensors and an outlet of the meter; a flow preparation device (6) intended for dissipating and stabilizing the flow of the fluid; an inlet (7) of the flow of the measured fluid; an outlet (8) for fluid flow out of the meter; an electronics unit (9); a coarse filter (10); a shut-off valve (11); a fluid leak detection sensor (12).