Integrated ice and beverage dispenser
View Patent ↗An ice cube-making machine that is characterized by noiseless operation at the location where ice cubes are dispensed and be lightweight packages for ease of installation. The ice cube-making machine has an evaporator package, a separate compressor package and a separate condenser package. Each of these packages has a weight that can generally by handled by one or two installers for ease of installation. The noisy compressor and condenser packages can be located remotely of the evaporator package. The maximum height distance between the evaporator package and the condenser package is greatly enhanced by the three package system. A pressure regulator operates during a harvest cycle to limit flow of refrigerant leaving the evaporator, thereby increasing pressure and temperature of the refrigerant in the evaporator and assisting in defrost thereof. The evaporator can be integrated with a beverage dispenser and an ice dispenser.
1. An ice-making machine for use with a water supply and a beverage source, the ice-making machine comprising:
an evaporator unit comprising an evaporator and a beverage dispenser, said evaporator being operably connected to said water supply, said beverage dispenser being in fluid communication with said beverage source;
a compressor unit comprising a compressor;
a condenser unit comprising a condenser;
an interconnection structure comprising a plurality of conduits that connect said evaporator, said compressor, and said condenser in a circuit for circulation of refrigerant and forming of ice at said evaporator unit from said water supply; and
a receiver connected in said circuit with said evaporator, said compressor and said condenser, wherein during a harvest cycle said interconnection structure selectively causes said refrigerant to flow to said receiver or causes said refrigerant to bypass said receiver, wherein said interconnection structure further comprises a head pressure valve and a bypass valve connected in said circuit with said compressor, said condenser, said evaporator and said receiver such that during said harvest cycle said receiver is either operable wherein said head pressure valve causes refrigerant to bypass said condenser so as to direct said refrigerant in vapor phase from said compressor to said receiver or said receiver is inoperable wherein said bypass valve causes said refrigerant to bypass said condenser and said receiver so as to direct said refrigerant from said compressor to said evaporator.
2. The ice-making machine of claim 1 , wherein said evaporator unit is located remotely from said compressor unit and said condenser unit.
3. The ice-making machine of claim 1 , wherein said evaporator unit, said compressor unit and said condenser unit are located remotely from each other.
4. The ice-making machine of claim 1 , wherein said evaporator unit further comprises an ice storage bin and an ice chute, said ice being dispensed from said ice storage bin through said ice chute.
5. The ice-making machine of claim 1 , wherein said beverage dispenser is a plurality of beverage dispensers, each of said beverage dispensers being in fluid communication with said beverage source.
6. The ice-making machine of claim 1 , wherein said evaporator unit further comprises a drain operably disposed with respect to said beverage dispenser.
7. The ice-making machine of claim 1 , wherein said receiver is disposed on said compressor unit.
8. The ice-making machine of claim 1 , wherein said compressor unit further comprises a filter connected in said circuit.
9. The ice-making machine of claim 1 , wherein said compressor unit further comprises an accumulator connected in said circuit.
10. The ice-making machine of claim 1 , wherein said condenser is water-cooled.
11. The ice-making machine of claim 1 , further comprising a pressure regulator disposed in said circuit between said evaporator and said compressor, wherein said pressure regulator limits flow of said refrigerant through said evaporator during a harvest cycle.
12. The ice-making machine of claim 11 , wherein said interconnection structure further comprises a supply line and a return line, wherein during a freeze cycle said pressure regulator does not impede flow of said refrigerant through said return line and during said harvest cycle said pressure regulator reduces flow of said refrigerant through said return line as compared to flow of said refrigerant during said freeze cycle, without stopping said flow, whereby pressure and temperature of said refrigerant in said evaporator increases to thereby assist in defrosting said evaporator to harvest said ice.
13. The ice-making machine of claim 1 , wherein said receiver is disposed on said evaporator unit.
14. The ice-making machine of claim 7 , further comprising a vapor circuit, wherein said vapor circuit comprises a vapor line and a defrost valve, wherein said vapor line connects said receiver to said evaporator, and wherein during said harvest cycle said vapor circuit directs said refrigerant in vapor phase to said evaporator to harvest said ice.
15. The ice-making machine of claim 7 , further comprising a drier, wherein said drier is disposed in said circuit between said receiver and said evaporator.
16. The ice-making machine of claim 2 , further comprising a fan, wherein said compressor unit is first and second compressor units, said first compressor unit having a first compressor, said second compressor unit having a second compressor, wherein said condenser unit is disposed in between said first and second compressor units, and wherein said fan, when operated, draws air to provide cooling to said condenser.
17. The ice-making machine of claim 16 , wherein said condenser is first and second condensers disposed in said condenser unit.
18. The ice-making machine of claim 17 , wherein said first and second condensers are disposed in a substantially V-like configuration.
19. The ice-making machine of claim 17 , wherein said condenser unit further comprises first and second apertures, wherein said fan, when operated, creates an air flow path between said first and second apertures to cool said first and second condensers, and wherein said air flow path substantially traverses said first and second condensers.
20. The ice-making machine of claim 1 , further comprising a pressure switch, wherein said bypass valve is a solenoid valve activated during said harvest cycle by said pressure switch.
21. The ice-making machine of claim 1 , further comprising a controller, wherein said bypass valve is a solenoid valve activated during said harvest cycle by said controller.
22. The ice-making machine of claim 1 , further comprising an accumulator and a heat exchanger, said accumulator being connected in said circuit between said evaporator and said compressor, said heat exchanger being disposed in said circuit to optimize refrigerant in liquid phase in said accumulator during a freeze cycle.
23. The ice-making machine of claim 22 , wherein said heat exchanger is a tube disposed in thermal relationship to an output line of said accumulator.
24. The ice-making machine of claim 22 , wherein said heat exchanger is a tube disposed in thermal relationship with refrigerant inside said accumulator.
25. A method of dispensing ice and beverage from a water supply and a beverage source, the method comprising:
positioning an evaporator in close proximity to a beverage dispenser and remotely from a compressor and a condenser, said evaporator being operably connected to said water supply, said beverage dispenser being in fluid communication with said beverage source;
providing refrigerant substantially in liquid phase to said evaporator from said condenser during a freeze cycle;
providing said refrigerant substantially in vapor phase to said evaporator from said compressor during a harvest cycle, flow of said refrigerant being limited during said harvest cycle whereby the pressure and temperature of said refrigerant in said evaporator increases to thereby assist in defrosting said evaporator, said ice being formed at said evaporator from said water supply;
operating a receiver connected in circuit with said compressor, said condenser and said evaporator during said freeze cycle to provide said refrigerant from said receiver to said evaporator via a supply line, and selectively either operating said receiver during said harvest cycle to provide said refrigerant from said receiver to said evaporator via a vapor line which bypasses said condenser or preventing operation of said receiver during said harvest cycle to provide refrigerant from said compressor to said evaporator such that said refrigerant bypasses said receiver and said condenser; and
dispensing said ice and/or dispensing said beverage.
26. The method of claim 25 , further comprising positioning said compressor and said condenser remotely from each other.
27. The method of claim 25 , further comprising reducing flow of said refrigerant during said harvest cycle from said evaporator to said compressor as compared to the flow during said freeze cycle, without stopping the flow during said harvest cycle.
28. The method of claim 27 , wherein reducing flow of said refrigerant during said harvest cycle comprises directing said refrigerant through a pressure regulator connected in circuit with said evaporator and said compressor.
29. The method of claim 25 , further comprising providing refrigerant to an accumulator connected in circuit with said evaporator and said compressor.