摘要:
A method and computer program product for defining a PWM drive signal having a defined voltage potential. The PWM drive signal has a plurality of “on” portions and a plurality of “off” portions that define a first duty cycle for regulating, at least in part, a flow rate of a pump assembly. At least a portion of the “on” portions of the PWM drive signal are pulse width modulated to define a second duty cycle for the at least a portion of the “on” portions of the PWM drive signal. The second duty cycle regulates, at least in part, the percentage of the defined voltage potential applied to the pump assembly.
摘要:
An orange juice dispensing system including a peristaltic pump (26) driven by a d.c. motor (28) for pumping concentrate through a concentrate conduit (12) to a mixing chamber (16) of a dispensing valve (18), a water line (14) for feeding water to the mixing chamber and including a flow meter (40) and a motorized control valve (42) therein, sensors (30) connected to the pump for sensing concentrate flow rate, and a microcontroller (32)receiving signals from the pump sensors and the water flow meter for controlling the mixture ratio and flow rate by controlling the motorized control valve in the water line and the d.c. motor connected to the concentrate pump. The concentrate is preferably contained in a non-returnable, plastic, semi-rigid container (22).
摘要:
A beverage dispenser provides numerous inventive features in its refrigeration system, diluent delivery system, concentrate delivery system, mixing and dispensing system, and control system. The refrigeration system employs a plate heat exchanger to provide on demand refrigeration of an intermittent water flow. The diluent delivery system includes a flowmeter/solenoid/check-valve assembly. The concentrate delivery system employs a positive displacement pump. The mixing and dispensing system includes a mixing nozzle that has a locking feature such that an elevated blocking surface directly faces the inlet of pressurized diluent to create turbulence. The control system receives package-specific information from a scanner and diluent flow rate information from the flowmeter, and then determines the pump speed in order to set a desired mix ratio.
摘要:
A unitary one-piece, disposable package (10) includes a canister (11) for storing a product. A pump housing (21) formed integrally with the canister contains a progressive cavity pump (12) that pumps product from the canister to an outlet chamber (23) of the pump housing and out an outlet (38) from the chamber. A product dispenser (50, 70, 80) for use with the unitary one-piece, disposable package includes a housing (51, 71, 81), a chamber (54, 72, 82) in the housing for receiving the package and a motor (59, 73, 84) within the housing for driving the progressive cavity pump of the package.
摘要:
A system for dispensing and controlling the concentrate of a juice product in which the product is made up of a juice concentrate and water. The concentrate is dispensed by pump operation and the water is dispensed by solenoid operation. The system basically provides for the control of the solenoid and the pump and for the initiation of a dispensing cycle so as to initiate operation of the solenoid and pump substantially at the same time. A timer responds for operating the solenoid and pump over a preselected dispensing period. The control of the pump to provide concentration control is provided by a speed control circuit having multiple selectable positions for providing multiple pump speeds so as to in turn provide variable concentration of the final dispensed juice product.
摘要:
A post-mix beverage dispensing valve for dispensing syrup and soda in the desired ratio without the need for flow controls for periodic adjustment of the ratio. The valve includes a flow meter (30) for measuring the flow rate of the soda and a pump (10) for dispensing metered quantities of syrup. The pump (10) preferably includes a chamber (14) within a ceramic sleeve (12) having first and second distal ends and a double-acting ceramic piston (16) mounted for reciprocating sliding movement within the sleeve (12). A solenoid valve control system including a pair of solenoid valves (SCA, SCB) controls syrup flow through the pump (10), in response to signals from the flow meter (30). The valve preferably also includes a syrup flow regulator. The valve can include a single externally manually adjustable flow rate control to vary the dispensing flow rate to any desired value.
摘要:
Vanne de distribution de boissons mélangées juste avant la consommation, utilisée pour la distribution de sirop et d'eau gazeuse en proportions désirées, sans qu'il soit nécessaire d'avoir recours à des régulations d'écoulement pour effectuer le réglage périodique des proportions. La vanne proposée comprend un débitmètre (30) servant à mesurer le débit de l'eau gazeuse et une pompe (10) servant à distribuer des quantités dosées de sirop. La pompe (6) comprend, de préférence, une chambre (14) se trouvant dans une douille céramique (12) présentant une première et une seconde extrémités distales, ainsi qu'un piston céramique (16) à double action, monté de façon qu'il puisse exécuter un mouvement glissant de va-et-vient à l'intérieur de ladite douille (12). Un système de commande à électrovannes comprenant une paire d'électrovannes (SCA, SCB) commande le flux du sirop à travers la pompe (10), en réponse à des signaux provenant du débitmètre (30). La vanne selon l'invention comprend également, de préférence, un régulateur de flux de sirop. Elle peut également comprendre une seule commande de débit, à réglage manuel externe, servant à faire varier le débit de distribution en fonction d'une valeur désirée quelconque.
摘要:
A system for dispensing and controlling the concentrate of a juice product in which the product is made up of a juice concentrate and water. The concentrate is dispensed by pump operation and the water is dispensed by solenoid operation. The system basically provides for the control of the solenoid and the pump and for the initiation of a dispensing cycle so as to initiate operation of the solenoid and pump substantially at the same time. A timer responds for operating the solenoid and pump over a preselected dispensing period. The control of the pump to provide concentration control is provided by a speed control circuit having multiple selectable positions for providing multiple pump speeds so as to in turn provide variable concentration of the final dispensed juice product.
摘要:
Flow regulation device (400) comprising a rigid external envelope (1) surrounding an internal tube (3) and defining, with same, an annular chamber. The device has ends provided with means (2.1, 2.2) for sealed connection thereof to a fluid line to be regulated, such that the internal tube is connected in series to said line. The chamber comprises means (7) for introducing a pressurized regulating fluid therein, the internal tube being configured to dilate under the pressure of the fluid to be regulated when the pressure of the fluid to be regulated exceeds the pressure of the regulating fluid. The device comprises a detector (8) of the dilation of the internal tube, and connection means (9) from the detector to a control unit (500) of a source connected to the line. Fluid distribution line and apparatus comprising such a device.