A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described. The method includes predicting a first capacitance volume of a first syringe comprising a first medical fluid and a second capacitance volume of a second syringe comprising a second medical fluid with a first capacitance correction factor and a second capacitance correction factor, respectively, selecting a ratio of the first medical fluid and the second medical fluid to be administered to a patient in the dual flow injection, determining a relative acceleration ratio of a first piston of the first syringe and a second piston of a second syringe based on the predicted first capacitance volume and the predicted second capacitance volume, wherein the relative acceleration ratio is selected to maintain the selected ratio of the first medical fluid and the second medical fluid during the dual flow injection, and injecting a mixture of a first medical fluid and a second medical fluid having the selected ratio with the powered injection system.

Dilute chemical solution production device has a plunger pump and a chemical solution supply pipe that supply a chemical solution from a chemical solution reservoir. The end of the chemical solution supply pipe serves as an injection point for the chemical solution. The chemical solution supply pipe is inserted to an approximately central position in the radial direction of an ultrapure water passage, which is a first pipe, via a bore-through joint. Conductivity meter as a conductivity measuring means is provided on the downstream side of the bore-through joint, which serves as the injection point, and is connected to the previously described control means so that the plunger pump can be controlled in accordance with the measured value of the conductivity meter. The dilute chemical solution production device is capable of producing, with a simple structure, a dilute chemical solution having an extremely low concentration of acid/alkali or the like.

Dilute chemical solution production device has a plunger pump and a chemical solution supply pipe that supply a chemical solution from a chemical solution reservoir. The end of the chemical solution supply pipe serves as an injection point for the chemical solution. The chemical solution supply pipe is inserted to an approximately central position in the radial direction of an ultrapure water passage, which is a first pipe, via a bore-through joint. Conductivity meter as a conductivity measuring means is provided on the downstream side of the bore-through joint, which serves as the injection point, and is connected to the previously described control means so that the plunger pump can be controlled in accordance with the measured value of the conductivity meter. The dilute chemical solution production device is capable of producing, with a simple structure, a dilute chemical solution having an extremely low concentration of acid/alkali or the like.

An exemplary compounding system and method can include two pump heads for simultaneously drawing two different fluids from at least two separate input containers such that the at least two different fluids are mixed and distributed to an output container. The system can include a manifold that maintains separation of certain of the different fluids until after passing by a first pump and a second pump and/or additional pumps. A junction can be placed in the fluid line downstream of the first and second pumps and/or additional pumps such that all or some of the fluids are mixed prior to output to the output container. The method of using the system can include incorporating software that selects various fluids at certain times and sequences to ensure optimum efficiency and safety for the system, and can continue compounding actions even when an input supply container runs out or otherwise fails to supply a particular fluid/material. The method of use also includes connection of a transfer set to a housing in a manner that further ensures optimum efficiency and safety.

A nozzle for dispensing a beverage includes a nozzle head having a base liquid inlet configured to receive a base liquid and a flavoring inlet configured to receive a flavoring. The nozzle further includes a diffuser assembly that is in fluid communication with the base liquid inlet and which includes a diffuser plate having a plurality of peripheral openings through which the base liquid flows. The nozzle further includes a receptacle that is in fluid communication with the diffuser assembly and the flavoring inlet. The receptacle of the nozzle includes an inner wall, and the peripheral openings of the diffuser assembly are arranged so as to direct flow of the base liquid along the inner wall of the receptacle. The receptacle further includes an outlet through which the flavoring and the base liquid are dispensed.

A nozzle for dispensing a beverage includes a nozzle head having a base liquid inlet configured to receive a base liquid and a flavoring inlet configured to receive a flavoring. The nozzle further includes a diffuser assembly that is in fluid communication with the base liquid inlet and which includes a diffuser plate having a plurality of peripheral openings through which the base liquid flows. The nozzle further includes a receptacle that is in fluid communication with the diffuser assembly and the flavoring inlet. The receptacle of the nozzle includes an inner wall, and the peripheral openings of the diffuser assembly are arranged so as to direct flow of the base liquid along the inner wall of the receptacle. The receptacle further includes an outlet through which the flavoring and the base liquid are dispensed.

A beverage dispensing system is disclosed that includes a container assembly configured to store two liquids (e.g., liquor and a mixer) that is couplable to a head assembly. The head assembly includes one or more pumps configured to draw the different liquids from the assembly, to mix variable ratios of the two liquids together, and to dispense the drink. In some configurations, the drink may be dispensed from the beverage dispenser into a glass or directly to the mouth of an individual.

A fluid mixing device includes a plurality of nozzles, each having a converging chamber, at least one chemical injection port, a diverging chamber, a nozzle throat, and an adjustable self-opening valve. The fluid mixing device provides for improvements in mixing fluids.

An exhaust duct for a fossil fuel powered engine includes an exhaust gas passage, a cooling fluid passage, a mixing device for mixing cooling fluid with the hot exhaust gas and a selective catalytic reduction catalyst for removing nitrogen oxides arranged in the exhaust gas passage. The mixing device has a mixing chamber with a first wall and an opposed second wall, the first and second wall arranged upstream of the selective catalytic reduction catalyst in the exhaust gas passage and extending over the cross-sectional area of the exhaust gas passage, both walls perforated by through holes, wherein through holes of the first wall are connected with through holes of the second wall in pairs by pipes extending through the mixing chamber, the pipes perforated by at least one hole into the mixing chamber and the cooling fluid passage ending into the mixing chamber.