104results about "Ratio control" patented technology

A flow conditioner includes a group of flow conditioning units including a first flow conditioning unit and a second flow conditioning unit. The flow conditioner also includes a mixing space for developing a flow. The mixing space is located between the first and second flow conditioning units. One of the first or second flow conditioning units can include one or more of a shaper or a reducer, and the other of the first or second flow conditioning units can include one or more shapers.

To provide a structure for easily arranging a control board in a flow rate ratio control device.SOLUTION: The fluid control device includes a plurality of fluid control devices 2 in which a fluid sensor 22 and a fluid control valve 23 are provided in a flow passage block 21, and a control board 4 for controlling the plurality of fluid control devices 2, and the control board 4 is erected on an upper surface of the flow passage block 21 along an arrangement direction of the plurality of fluid control devices 2.SELECTED DRAWING: Figure 1

To provide a system and method for stably supplying acetylene.SOLUTION: The system comprises at least one acetylene storage apparatus 1, 2, a detection module 5, a gas dilution module 4 and a gas supply regulating module. By mixing a feedstock stream outputted from the acetylene storage apparatus with a diluting gas in a specific ratio, a photoionization detector is successfully used to detect a solvent content in the feedstock stream. This real-time and continuous detection method ensures a stable supply of acetylene to a downstream process.SELECTED DRAWING: Figure 1

The invention relates to a liquid circuit (10) for an agricultural sprayer (100) comprising a main tank (11), a sealed transfer system (12) capable of transferring a liquid product contained in a container (14) to the liquid circuit in a sealed manner, a suction mechanism (13) designed to suction liquid product from the sealed transfer system and to pump said liquid product back to the main tank, a metering mechanism (17) and a control unit (18) designed to determine a quantity of liquid product to be supplied to the suction mechanism for filling the main tank, and to command the metering mechanism to supply the determined quantity of liquid product to the suction mechanism, so as to meter the liquid product transferred from the sealed transfer system to the main tank.

A disclosed example flow ratio controller includes an inlet configured to receive an input process gas stream; an inlet pressure sensor configured to measure an inlet pressure; a first outlet and a second outlet configured to output a first portion and a second portion of an input process gas stream; a first flow valve and a second flow valve configured to control a flow of input process gas to the first outlet and the second outlet; a first position sensor and a second position sensor configured to measure valve positions of the first flow valve and the second flow valve; a first outlet pressure sensor and a second outlet pressure sensor configured to measure outlet pressures of the first outlet and the second outlet; and control circuitry configured to control the first flow valve and the second flow valve using a valve flow model and based on a predetermined flow ratio of the first outlet and the second outlet, the inlet pressure, the first valve position and the second valve position, and the first outlet pressure and the second outlet pressure.

A gas-mixing device is provided for the controlled mixing of two different gases. The gas-mixing device has a first inlet for a first gas which is under pressure, a second inlet for a second gas which is under pressure, and an outlet for the mixed gas. The gas-mixing device also has two gas-conducting lines. The first line connects the first inlet to the outlet, and the second line connects the second inlet to the outlet. In each line, an upstream valve, a proportional valve and a flow sensor are provided. The gas-mixing device additionally has at least one electronic control unit for controlling the two proportional valves and is designed such that the proportional valve of the first line acts as a pressure regulator and the proportional valve of the second line acts as a flow regulator.

The fluid preparation device is configured to provide (205) a medical fluid for use in dialysis therapy by generating (204) a mixture of a base fluid and one or more concentrated fluids, each of the one or more concentrated fluids being stored in a respective container. The control device determines (203) a reference concentration of the concentrated fluid at a reference point in time by operating (202) the device to pump the concentrated fluid to a sensor device for measuring a component-related parameter. The control device estimates (206) an instantaneous concentration of the concentrated fluid as a function of time by using the reference concentration and at least one calculation function for calculating an evaporative moisture loss over time from the container. Before or during the production of the mixture, the control device adjusts (207) a mixing ratio between the base fluid and the concentrated fluid based on the instantaneous concentration to produce a mixture having the target component.

A computer-implemented method includes a computer-implemented method can include receiving telematics data comprising information related to one or more driving behaviors of a user. The telematics data is received from one or more sensors located in a vehicle when the user is operating the vehicle. The method also can include determining one or more user characteristics of the user based at least on the telematics data. The method additionally can include selecting an advertisement from a plurality of advertisements based at least on the one or more user characteristics. Other embodiments are described.

Method and device for controlling a fluid network The present description relates to a method for estimating, by a calculation device, parameters for controlling a fluid network, from at least one source station to at least one destination station and via at least one pipeline, the network comprising at least one valve and / or at least one pressure reducing station, the method comprising: determining a configuration of the at least one valve and / or of the at least one pressure reducing station and / or of the at least one source station; initializing coefficients associated with the at least one pipeline; a first estimation of the parameters, on the basis of the configuration, updating the coefficients on the basis of the first estimation; searching for a new configuration on the basis of the updated coefficients; a second estimation; and providing the second estimation to a control station. Figure for abstract: Fig. 3

Systems and methods for shared drone usage are disclosed. A drone owned by one party is made available for control by a second party through a combination of drone-end software, a streaming service, and a system backend. The second party is provided a set of controls that is translated into the manufacturer-designated controls for the drone.

To provide a flow ratio controller system.SOLUTION: A flow ratio controller system includes an inlet receiving a total inlet fluid flow from one or more inlet channels, distribution channels fluidically connected to the inlet and arranged in parallel in a branching flow path downstream of the inlet, and a controller. The distribution channels include a hybrid distribution channel. The controller selectively operates in alternative control modes including a flow verification control mode and a flow ratio control mode. In the flow verification control mode, the controller calculates a calibrated value for a reference volume by using measurements from a mass flow meter in the hybrid distribution channel, and then calculates a target channel calibration value for the mass flow meter in the target distribution channel.SELECTED DRAWING: Figure 1A

[0006] Several embodiments of a fast gas exchange (FGE) manifold are provided herein. In some embodiments, the FGE manifold includes a manifold housing having a plurality of inlets and a plurality of outlets for flowing a plurality of process gases through the manifold housing, the plurality of outlets corresponding to a plurality of zones in a process chamber, a plurality of hybrid valves disposed within the manifold housing and fluidly coupled to the plurality of inlets, a plurality of mass flow controllers disposed within the manifold housing downstream of the plurality of hybrid valves, a plurality of mixing lines extending downstream from the plurality of mass flow controllers to a plurality of outlet lines, and a plurality of outlet valves disposed along corresponding ones of the plurality of outlet lines, wherein a flow path is defined between each inlet of the plurality of inlets and each outlet of the plurality of outlets.

Systems and methods for shared drone usage are disclosed. A drone owned by one party is made available for control by a second party through a combination of drone-end software, a streaming service, and a system backend. The second party is provided a set of controls that is translated into the manufacturer-designated controls for the drone.

A method is for manufacturing elements including hydraulic binder and aggregates. The method includes mixing a dry mortar composition including hydraulic binder and aggregates with water, to form a wet mortar. The method also includes pumping and conveying the wet mortar towards an outlet. During the conveying at least two physical properties of the wet mortar are measured on-line. The physical properties include viscosity and at least one of flow and density.

To provide a system for stabilizing a reaction chamber pressure and a method.SOLUTION: A reactor system may comprise: a first gas source; a second gas source; and a reaction chamber fluid-connected to the first gas source and the second gas source. First gas and second gas are respectively supplied to the reaction chamber from the first and second gas sources, to achieve stabilization of a reaction chamber pressure. The reactor system may comprise: an exhaust line fluid-connected to the reaction chamber in a downstream side of the reaction chamber; a vent line fluid-connected to the first gas source and / or the second gas source, and the exhaust line and bypassing the reaction chamber; and a vent line conductance control valve connected to a pressure monitor connected to the vent line, structured so as to monitor a vent line pressure in the vent line and / or the vent line, and structured so as to perform an adjustment in response to a feed-back from the pressure monitor.SELECTED DRAWING: Figure 1

A pumping assembly for providing pressurized liquid to a liquid propelled drill or hammer is provided. The pumping assembly includes at least two pump modules, each including at least one liquid pump, at least one electric motor arranged to drive said at least one liquid pump, and a liquid outlet for providing pressurized liquid from the at least one liquid pump, and an outlet manifold connecting the liquid outlets of the at least two pump modules in parallel to provide a common liquid outlet for connection to said liquid propelled drill or hammer. The pump modules are each configured to provide a liquid flow of 200-600 l / min.

The present invention provides a system and method for precisely dividing an inlet fluid flow into multiple outlet flows. [Solution] A method and apparatus for the controlled division of a fluid flow into multiple channels, wherein an input command specifies the flow rate in each channel as a percentage of the total flow rate. The flow rate in each channel is controlled by a valve that can be moved to a specified position, the position being determined as a function of the specified percentage, the pressure upstream of the valve, and the pressure downstream of the valve.

Methods and systems of admixing hydrocarbon liquids from two or more sets of tanks into a single pipeline to provide in-line mixing thereof. In an embodiment of the in-line mixing system, hydrocarbon liquids stored in at least one tank of each of two or more sets of tanks positioned at a tank farm are blended into a blend flow pipe via in-line mixing and the blended mixture is pumped through a single pipeline. In one or more embodiments, the in-line mixing system employs a separate spillback or recirculation loop that is fluidly connected to each set of the two or more sets of tanks to control the flow of the hydrocarbon fluid / liquid from each set of tanks to the blend flow pipe. Associated methods of operating one or more embodiments of the system include regulation of spillback or recirculation loop flow rate and / or pressure to drive the actual blend ratio towards a desired blend ratio.

The invention relates to a method for treating dirty overflow water in order to separate suspended matter and insoluble granular material that is heavier than water. This method involves a degassing step (1), two steps of liquid-solid separation within a hydrocyclone (4) and a recirculation cylinder (5), and a step of recirculating the water to be treated, carried out by a hydroejector (3).

Systems and method for dispensing chemical include an eductor having a diluent inlet, a chemical pickup port, a discharge port, and a venturi fluidly coupled between the diluent inlet and the discharge port; a selector valve fluidly coupled to the diluent inlet and configured to control a flow of diluent into the diluent inlet; a sensor configured to measure a flow characteristic of the flow of diluent; and a controller operatively coupled to the selector valve. The controller includes at least one processor and memory storing instructions that, when executed, cause the at least one processor to perform operations including opening the selector valve to allow the flow of diluent into the diluent inlet; determining a dispense duration based on the measured flow characteristic and an amount of a chemical to be dispensed; and in response to determining that the dispense duration has elapsed, closing the selector valve.

Ergonomic device for mixing fluids with controlled metering, provided with at least a mixing system (2) adapted to allow an automatic mixing in predetermined quantities of an additive fluid with a primary fluid; said device comprising: - at least a first coupling flange (1.2) and a second coupling flange (1.3), provided with a plurality of connection systems, which may be located in the zone (1.4), and seals (2.9) adapted to contain fluid leaks, a substantially cylindrical body of the device (1.1) adapted to house a mixing system (2); a mixing mechanism consisting of an axis (2.1) and a plurality of blades (2.2); at least one ergonomic grip (1.5), possibly an integrated train of reduction gears (2.3) which transmits the correct torque and number of revolutions to the pump, at least one gear pump (2.6) or equivalent device, possibly a gearbox (2.8); a final metering nozzle (2.7).

A buffer management system includes at least one workstation configured to support a supply of concentrated buffer solution and an inline dilution skid having a manifold. The manifold is in fluid communication with the supply of concentrated buffer solution and is adapted to be placed in fluid communication with a source of water for injection (WFI). The manifold includes a buffer inlet line in selective fluid communication with the supply of concentrated buffer solution, a WFI inlet line in selective fluid communication with the source of WFI, and a discharge line in fluid communication with both the buffer inlet line and the WFI inlet line. The inline dilution skid is configured to variably mix the supply of concentrated buffer solution and the source of WFI to obtain a range of diluted buffer solutions.

The invention provides a substrate processing apparatus capable of improving solvent concentration in a shorter time. This substrate processing apparatus (100) is provided with a processing tank (Tk0), a substrate holding unit (10), a discharge unit (4), and an organic solvent recovery unit (5). The processing tank (Tk0) stores a liquid (L1). The substrate holding unit (10) holds a plurality of substrates (W) and immerses the plurality of substrates (W) in the liquid (L1) in the processing tank (Tk0). The discharge unit (4) discharges a second-concentration liquid having a higher solvent concentration than the first-concentration liquid from a treatment tank (Tk0) in which a liquid (L1) is stored in the treatment tank (Tk0), the liquid (L1) containing water and an organic solvent having a lower specific gravity than the water and having a higher solvent concentration on the upper side than on the lower side, while avoiding at least a part of the first-concentration liquid in the liquid (L1). The organic solvent recovery unit (5) includes a dehydrator that separates water from the second-concentration liquid discharged by the discharge unit (4) and generates a third-concentration liquid having a higher solvent concentration than the second-concentration liquid.

A computer system is provided, comprising processing circuitry configured to access a map (312) representing the flow ratio as a function of a position of a mixing valve (260) being configured to provide a specific ratio between at least two incoming flows based on a position of the mixing valve (260), said mixing valve (260) forming part of a thermal management system (200); obtain the temperatures of the at least two incoming flows and the temperature of at least one outlet flow of the mixing valve (260); obtain the actual flow ratio for at least one position of the mixing valve (260) based on the obtained temperatures; determine that the obtained flow ratio is different from the corresponding value of the map (312) for the same mixing valve position; and update the map (312) with the obtained flow ratio.

The diluent supply device (1) includes: a diluent preparation unit (2) for preparing diluent (W1); a storage tank (3) for the prepared diluent; a diluent adjustment and supply mechanism (4) for supplying the diluent (W1) stored in the storage tank (3) as cleaning water (W2) to multiple sheet cleaning machines (5A, 5B, 5C); and a return mechanism that is connected to the sheet cleaning machines (5A, 5B, 5C) respectively and returns the residual water of the sheet cleaning machines to the storage tank (3). With such a diluent supply device, the solute concentration of the diluent can be adjusted with high precision, and the discharge of residual water can be suppressed, making it suitable for cleaning wafers and the like.

A system for mixing acid and water can include a tank for holding acid, an acid pump for pumping acid out of the tank, an acid flow meter, an acid control valve, a water pump for pumping water, a water flow meter, a water control valve, a flush valve to selectively flush the system with water, and a controller to monitor the flow meters and control the pumps and the valves. The acid control valve and / or the water control valve can be an electronically controlled valve. The flush valve can be an electronically controlled valve to selectively permit water to flow from downstream of the water pump to upstream of the acid pump. The acid control valve, the water control valve, the flush valve, or any combination thereof can be throttled by the controller to control flow therethrough.

A system for generating a medical fluid for renal replacement therapy is operated by a control device according to a method. In the method, a first pump is operated to convey a first fluid from a first container, arranged on a first scale, into a supply path, and a second pump is operated to convey a second fluid from a second container, arranged on a second scale, into the supply path, to generate a mixture therein. The speed of at least one of the pumps is adjusted until a sensor measures a target value of a composition-related parameter. A relation between weight changes of the first and second scales is determined while the sensor measures the target value. The medical fluid is then generated in the supply path, by the pumps being operated, based on signals from the scales, to achieve said relation.

A computer-implemented method includes determining a chemical mixture for a drilling fluid and maintaining or updating the chemical mixture. Determining the chemical mixture is based on a first interdependency of a first target property of a set of properties associated with the drilling fluid and a first substance to be added for the chemical mixture. Determining the chemical mixture is based on a second interdependency of the first target property and a second substance to be added for the chemical mixture. Maintaining or updating the chemical mixture is based on a first measurement of the first target property, a second measurement of a second target property of the set of properties, or combinations including one of the foregoing.

To provide flow ratio controllers and precision gas distribution systems.SOLUTION: A flow ratio controller includes: an inlet that receives an inflow process gas flow; an inlet pressure sensor that measures an inlet pressure; a first outlet and a second outlet that output a first portion and a second portion of the inflow process gas flow; a first flow valve and a second flow valve that control the inflow process gas flow to the first outlet and the second outlet; a first position sensor and a second position sensor that measure valve positions of the first flow valve and the second flow valve; a first outlet pressure sensor and a second outlet pressure sensor that measure outlet pressures of the first outlet and the second outlet; and control circuitry configured to control the first flow valve and the second flow valve using a valve flow model and based on a predetermined flow ratio for the first outlet and the second outlet, the inlet pressure, the first and second valve positions, and the first and second outlet pressures.SELECTED DRAWING: Figure 1