Abstract: A flow measurement system uses conduits adapted to be coupled to and throughout a liquid or gaseous fluid flow distribution system. Each conduit is instrumented to measure parameters associated with the liquid or gaseous fluid moving therethrough, and wireless transmit a unique code and data indicative of the parameters so-measured. A remotely-located receiver and output device(s) may be used to provide the data and unique code associated with each of the conduits in a human-discernable format. Each conduit may also receive data resulting in adjustment of fluid flow through the conduit.

Abstract: A seal is mounted in a groove around an orifice of a measuring chamber inserted in an insertion direction into a tank to form a fluid meter. The seal comprises a radially elastic torus having a shape corresponding to that of the orifice and an arrangement on at least one of its sides substantially parallel to the insertion direction for immobilizing it in a direction opposite the insertion direction.

Abstract: A seal is mounted in a groove around an orifice of a measuring chamber inserted in an insertion direction into a tank to form a fluid meter. The seal comprises a radially elastic torus having a shape corresponding to that of the orifice and an arrangement on at least one of its sides substantially parallel to the insertion direction for immobilizing it in a direction opposite the insertion direction.

Abstract: A piston-type quantity meter including a metering chamber having a bottom, a cylindrical chamber shell, a cover, a central journal, a guide ring, two inlet opening formed, respectively, in the chamber bottom and the chamber cover, and a radial outlet opening formed in the chamber shell, an annular piston located in the chamber interior and having a cylindrical piston skirt, guide slot means formed in the piston skirt and corresponding to a width of separation wall located in the metering chamber for pinning the piston on the separation wall, and a radial outlet opening associated with the outlet opening formed in the chamber shell, and a seal strip for sealing at least one of a slit formed between the inner surface of the chamber shell and an outer surface of the annular piston, and a slit formed between the inner surface of the piston and the guide ring.

Abstract: Flow indicator with the purpose to indicate direction of the air flow between two rooms separated by a wall. The indicator comprises a tube (12) that is mounted in an opening of the wall (10). Inside the tube is a smooth-running body (16) mounted that easily moves towards the end of the tube by pressure difference arised air flow. Both ends of the tube are provided with end-stops (18) that are constructed to prevent the body (16) to leave the tube and are provided with one or more openings (20) that admits air to pass into the interior of the tube.

Abstract: The invention relates to a flow meter and in particular to a flow meter suitable for connection into a fluid conduit. The flow meter has an inlet and an outlet for connection into a fluid line and includes interconnected cylinders, each cylinder having a plurality of ports controlled by a piston axially-movable therein such that at any time the inlet and outlet are in fluid communication by a fluid pathway which includes two cylinders characterized in that there are three interconnected cylinders.

Abstract: Device for measuring liquid volume in the manner of a cylindrical piston meter with a cylindrical measuring chamber with connecting channels running perpendicularly to the cylinder axis of the measuring chamber and with a cylindrical piston inserted eccentrically into the measuring chamber and performing a wobbling movement, said piston having an H-shaped cross section and a through opening for engagement into a separating wall projecting into the measuring chamber, with the characterizing feature that the cylindrical piston is hydraulically tensioned by the inflowing liquid in the measuring chamber and the pressure differential on the outer and inner jacket surfaces of the cylindrical piston tends toward zero.

Abstract: A measuring device for a liquid meter with oscillating piston comprises a hollow chamber pierced with two apertures and limited by a cylindrical side wall, a bottom and a lid; a piston enclosed in said chamber and held movably, along a partition wall about a well. This device further comprises at least one groove, made in the corners formed between the bottom and the side wall of the chamber or the well or the piston, that opens into the hollow of the chamber, in a space formed between the well and the side walls, and is designed to receive deposits of particles introduced into said device by the liquid to be metered. The device can be applied in particular to water metering. FIG.

Abstract: A cylindrical chamber (1) for an oscillating piston type of liquid counter comprises notably a biconcave fixed partition wall (9) and grooves on the lower and/or upper edges of the piston and, as the case may be, on the small cylinders of the chamber 1. The disclosure can be applied to the metering of liquid and, especially, to the metering of water.

Abstract: A small volume prover is disclosed which is compact and capable of obtaining highly reliable measurement, keeping a highly accurate base volume without being affected by temperature and pressure of fluid to be measured.The prover includes a cylindrical outer housing having a fluid inlet and a fluid outlet spaced apart from each other, a cylindrical measuring conduit having both open ends and first and second sets of fluid ports radially made in a wall thereof and coaxially mounted within the outer housing and an annular wall mounted between the outer housing and the measuring conduit at the position between the measuring conduit open end and the first set of ports thereof to form an upstream annular passage and a downstream annular passage. During proving preparation a piston is restrained by a piston actuator provided in the outlet-side end of the outer housing to permit the fluid to pass through the annular passage.

Abstract: Apparatus for indicating fuel per pulse in a pulsed fuel injection system for an internal combustion engine, especially a diesel engine, includes a magnetic piston axially movable in a cylindrical bore in a fuel line to and from a stopped position blocking an inlet. The piston has an outer diameter just smaller than the inner diameter of the bore and is included in a magnetic circuit including an actuating coil having an inductance varying with piston position. Circuitry provides strong electrical current pulse to the coil prior to injection to move the piston to its stopped position and then provides a substantially weaker AC current to the coil while monitoring the voltage and rate of change of voltage thereacross. The rate of change of voltage indicates when piston movement in response to a fuel injection pulse ceases; and the voltage at that point indicates piston position and therefore fuel quantity injected.

Abstract: This invention relates to a device for measuring solids in a moving stream installed in a closed system in which the prevailing pressure therein is equal to or higher than the ambient pressure. The device includes an inlet which is smaller in cross-section than a main portion of the housing for providing a solid free internal volume vertically downwardly of the inlet. A diverter member rotatable about a horizontally disposed axis is disposed in the housing portion and has a length greater than the width of the housing so as to permit the upper edge of the diverter member to swing outside the flow of solids into the main portion of the housing while the lower edge of the diverter contacts the opposite wall of the housing for dividing the main portion of the housing into two spaces.

Abstract: A flow-rate measuring device comprises a chamber and an inlet channel for receiving and introducing a flow of fluid to the chamber. A wobble plate is pivotally disposed in the chamber to equally divide it into first and second chamber portions when in equilibrium position. First and second discharge channels are connected to the first and second chamber portions, respectively. Part of the chamber wall serves as an arcuate baffle extending between the first and second discharge channels. The pivot point of the wobble plate lies at the center of curvature of the arcuate baffle surface.

Abstract: A flow-rate measuring device comprises a cavity and an inlet port for receiving and introducing a flow of fluid to the cavity. A wobble plate is pivotally disposed in the cavity to equally divide it into first and second cavity sections when in equilibrium position. An arcuate baffle plate is disposed in the cavity. First and second discharge channels are formed between the edges of the baffle plate and the inner wall of the cavity. An outlet port is connected to the discharge channels. The rearward end of the wobble plate is in proximity to the arcuate surface of the baffle plate and the pivot point of the wobble plate lies at the center of curvature of the baffle plate. The cavity has an increasing transverse dimension toward the first and second discharge channels to form a converging space toward each discharge channel when the wobble plate takes an extremely inclined position.