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).

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).

An apparatus has a housing with a fluid inlet in fluid communication with a fluid flow path, and a fluid outlet. The monitor includes a controllable valve and a diverter that accommodates different types of sensors. The housing includes a dry housing interior fluidly isolated from the fluid flow path. The monitor includes a power generator configured to generate a voltage when fluid flows through the fluid flow path and at least one sensor configured to measure at least one characteristic of a fluid flowing through the fluid flow path. The monitor includes a signal generator configured to transmit signals from the power generator and from the at least one sensor to a remote processor. The power generator is configured to power both the at least one sensor and the signal generator in response to fluid flow through the fluid flow path.

An apparatus has a housing with a fluid inlet in fluid communication with a fluid flow path, and a fluid outlet. The monitor includes a controllable valve and a diverter that accommodates different types of sensors. The housing includes a dry housing interior fluidly isolated from the fluid flow path. The monitor includes a power generator configured to generate a voltage when fluid flows through the fluid flow path and at least one sensor configured to measure at least one characteristic of a fluid flowing through the fluid flow path. The monitor includes a signal generator configured to transmit signals from the power generator and from the at least one sensor to a remote processor. The power generator is configured to power both the at least one sensor and the signal generator in response to fluid flow through the fluid flow path.

A flowmeter having a seal structure for preventing an inner case structure from becoming complicated and making it possible to easily assemble an inner case with an outer case even if an inflow port has a large diameter. A seal member including a pair of sheet members each having a circular opening provided in a central part and a protruding ring formed along the outer peripheral edge of the opening in a protruding shape that projects outward is inserted between the inner peripheral surface of a body case of an outer case and the outer peripheral surface of an inner case. The protruding rings of the seal member are pressed by the inner peripheral surface of the body case of the outer case, seal the space between the outer case body part and the inner case, and prevent the leakage of fluid flowing through a flowmeter.

A flowmeter having a seal structure for preventing an inner case structure from becoming complicated and making it possible to easily assemble an inner case with an outer case even if an inflow port has a large diameter. A seal member including a pair of sheet members each having a circular opening provided in a central part and a protruding ring formed along the outer peripheral edge of the opening in a protruding shape that projects outward is inserted between the inner peripheral surface of a body case of an outer case and the outer peripheral surface of an inner case. The protruding rings of the seal member are pressed by the inner peripheral surface of the body case of the outer case, seal the space between the outer case body part and the inner case, and prevent the leakage of fluid flowing through a flowmeter.

Method and measuring device for determining the drinking water consumption in a drinking water system preferably in a building, includes a riser and a plurality of ring lines which branch off therefrom and rejoin in the direction of flow, wherein each ring line has at least one consuming fixture and at least one measuring device, and wherein the consumption of the drinking water in each ring line is determined with a separate measuring device.

Method and measuring device for determining the drinking water consumption in a drinking water system preferably in a building, includes a riser and a plurality of ring lines which branch off therefrom and rejoin in the direction of flow, wherein each ring line has at least one consuming fixture and at least one measuring device, and wherein the consumption of the drinking water in each ring line is determined with a separate measuring device.

A water heater including an inflow terminal for connecting a tankless water heater to a cold water supply and an outflow terminal for connecting the tankless water heater to a tap. A fluid channel proves a fluid connection from the inflow terminal to the outflow terminal. A heat element arrangement is arranged at or within at least a section of the fluid channel for transferring heat to fluid present within the fluid channel. An electronic controller is configured to control a heating power provided to the heat element arrangement. A flow sensor is arranged at or within the fluid channel downstream the heat element arrangement. The electronic controller is further configured to detect the presence of air bubbles within the fluid channel based on a change of a flow signal provided by the flow sensor and to adapt the heating power provided to the heat element arrangement in reaction to the determination of air bubbles.

A flow meter has a meter wheel housing connectable in-line in a liquid conduit such that liquid flows through the meter wheel housing from an input port to an output port. Liquid flowing from the input port to the output port rotates a meter wheel mounted in the housing, and a wheel sensor measures rotational speed of the meter wheel. A first jet member defining a first orifice with a first cross-sectional area is movable into a jet operating position between the upstream end of the liquid conduit and the input port such that liquid passes through the input port into the meter wheel housing only through the first orifice. A second jet member defining a second orifice with a second cross-sectional area is movable into the jet operating position. The second cross-sectional area is less than the first cross-sectional area.