Systems, apparatus and methods are described herein for dispensing a carbonated beverage. In some embodiments, an apparatus includes a first cylinder that defines an interior region that can contain a volume of carbonated water and a first piston separating the interior region. A second cylinder is coupled to the first cylinder and defines an interior region and a second piston separating the interior region and operatively coupled to the first piston. The interior region of the second cylinder can contain a volume of beverage concentrate. A flywheel assembly is operatively coupled to the first cylinder and to the first piston and can control a predetermined ratio of a volume of carbonated water from the first cylinder and a volume of beverage concentrate from the second cylinder to be dispensed when a force is exerted on the piston by a flow of carbonated water through the first cylinder.

A liquid dispensing pump (10) comprises: a first liquid storage cylinder (11), a second liquid storage cylinder (12), a first plunger (13) movably connected to the first liquid storage cylinder (11), a second plunger (14) movably connected to the second liquid storage cylinder (12), and a drive assembly (15) connected to the first plunger (13) and the second plunger (14). The first liquid storage cylinder (11) is provided with a first liquid entry and exit port (111). The second liquid storage cylinder (12) is provided with a second liquid entry and exit port (121). One end of the first plunger (13) is inserted into an internal cavity of the first liquid storage cylinder (11). One end of the second plunger (14) is inserted into an internal cavity of the second liquid storage cylinder (12). Further provided is a liquid dispensing device (100). The advantageous effect of the invention is: during each linear reciprocating movement cycle of the first plunger (13) and the second plunger (14), the first liquid storage cylinder (11) and the second liquid storage cylinder (12) discharge corresponding ingredients according to a pre-determined mixing ratio, and a mixed solution according to the pre-determined mixing ratio is obtained, thereby achieving precise mixing of different ingredients. In addition, the dispensing pump (10) discharges ingredients at a consistent ratio, thereby achieving uniform mixing without a dedicated mixer.

Method for adjusting the volumetric flow ratio of at least two different fluids (F1, F2) with a control-device. The control-device comprises a first chamber with a chamber-volume (V.sub.C1) for the first fluid (F1) and an inlet-element and an outlet-element for the first fluid (F1) and at least one rotating or nutating element. The control-device further comprises at least one second chamber with a chamber-volume (V.sub.C2) for the second fluid (F2), wherein the second chamber has an inlet-element and an outlet-element for the second fluid (F2) and at least one rotating or nutating element. The rotating or nutating elements are coupled so as to rotate or nutate at a defined rotational or nutational frequency ratio and are driven by the fluids (F1, F2). The chamber volume ratio (V.sub.C1:V.sub.C2) and the rotational or nutational frequency ratio are selected such that the fluids (F1, F2) flowing out of the outlet-elements have a predefined volumetric flow ratio. The input resistor (R.sub.i) of the respective inlet-element and the output resistor (R.sub.o) of the respective outlet-element of the first chamber and/or the second chamber are chosen so as to satisfy the equation: (I), wherein η.sub.F is the viscosity of the respective fluid (F1, F2) and Cn designates the respective chamber.

In a dispenser for dispensing at least two liquid or pasty substances from receptacles to a dispenser head, constant delivery pumps are connected therebetween to compensate for viscosity variations and keep a given mixing ratio constant.

A multi-component fluid delivery system includes a first fluid pump and a second fluid pump. The first and the second fluid pumps are not mechanically coupled to each other. The multi-component fluid delivery system further includes a control system comprising a processor configured to derive a slip ratio for the first fluid pump and the second fluid pump. The processor is additionally configured to apply a master-slave motor control to deliver a specified fluid ratio via the first and the second fluid pumps based on the slip ratio.

A multi-reservoir feeding/dosing apparatus for the delivery of at least two substances in discrete form includes first and second conveying elements in which the discharge end thereof are a close fit in a discharge bushing thereby to ensure that the correct dosage of each substance is discharged on a consistent basis. Each conveying element is in its respective reservoir. At least one motor drives both conveying elements, with each rotational direction of the motor actuating a corresponding one of the conveying elements.

In a dispenser for dispensing at least two liquid or pasty substances from receptacles to a dispenser head, constant delivery pumps are connected therebetween to compensate for viscosity variations and keep a given mixing ratio constant.

Systems, apparatus and methods are described herein for dispensing a carbonated beverage. In some embodiments, an apparatus includes a first cylinder that defines an interior region that can contain a volume of carbonated water and a first piston separating the interior region. A second cylinder is coupled to the first cylinder and defines an interior region and a second piston separating the interior region and operatively coupled to the first piston. The interior region of the second cylinder can contain a volume of beverage concentrate. A flywheel assembly is operatively coupled to the first cylinder and to the first piston and can control a predetermined ratio of a volume of carbonated water from the first cylinder and a volume of beverage concentrate from the second cylinder to be dispensed when a force is exerted on the piston by a flow of carbonated water through the first cylinder.

The control device is used to control delivery of fluids from a multi-fluid delivery system during a medical injection procedure. The fluid delivery system includes an injector used to deliver injection fluids to a patient. The control device is operatively associated with the injector for controlling discrete flow rates of injection fluids delivered to the patient. The control device includes first and second actuators associated with the manual control device, and an electronic substrate disposed within the manual control device and having a conductive pattern. The first actuator is operatively associated with the conductive pattern. The conductive pattern includes a plurality of predetermined digital values corresponding to discrete flow rates of injection fluids to be delivered by the injector. The second actuator is operatively associated with the electronic substrate and initiates output signals to the injector corresponding to desired mixture ratios of the injection fluids to be delivered by the injector.

The present invention is a two-component fluid dispensing system. In particular, the present invention relates to a two-component fluid dispensing system that uses a dual rotor pump for precision ratio metering and precision fluid flow shut off of a mixed fluid.