A refrigerator includes a main refrigeration loop and a canister configured in a parallel circuit with the main refrigeration loop between the compressor and evaporator, with a liquid-filled bladder within the canister. The canister is pressurized by high-pressure refrigerant from the compressor, wh
A refrigerator includes a main refrigeration loop and a canister configured in a parallel circuit with the main refrigeration loop between the compressor and evaporator, with a liquid-filled bladder within the canister. The canister is pressurized by high-pressure refrigerant from the compressor, which forces the liquid within the bladder out of the bladder and to a pressurized water reservoir in fluid communication with the bladder and configured to house the evaporator and then out to a dispenser.
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1. A beverage dispensing appliance comprising: a main refrigeration loop comprising a refrigerant line with refrigerant, a compressor, a condenser, and an evaporator;a canister fluidly coupled to the compressor and evaporator and configured in a parallel circuit with the main refrigeration loop,a bl
1. A beverage dispensing appliance comprising: a main refrigeration loop comprising a refrigerant line with refrigerant, a compressor, a condenser, and an evaporator;a canister fluidly coupled to the compressor and evaporator and configured in a parallel circuit with the main refrigeration loop,a bladder disposed within the canister, comprising an inlet valve and an outlet valve, wherein the bladder is configured with a first state in which the inlet valve is open and the outlet valve is closed, and the pressure within the canister is ambient, and a second state in which the inlet valve is closed and the outlet valve is open, and the pressure within the canister is pressurized by refrigerant from the compressor;a pressurized water reservoir in fluid communication with the bladder and housing the evaporator; anda dispenser. 2. The beverage dispensing appliance of claim 1, further comprising a carbonator system disposed between and fluidly coupled with the pressurized water reservoir and the dispenser. 3. The beverage dispensing appliance of claim 2, wherein the carbonator system comprises a carbonator in fluid communication with the pressurized water reservoir and the dispenser. 4. The beverage dispensing appliance of claim 3, further comprising a carbon dioxide bottle with a regulator in fluid communication with the carbonator. 5. The beverage dispensing appliance of claim 1, wherein the bladder is made of an elastomeric material. 6. The beverage dispensing appliance of claim 1, further comprising an ambient water reservoir disposed upstream of and in fluid communication with the bladder. 7. The beverage dispensing appliance of claim 6, wherein the ambient water reservoir is supplied with water from a household water supply. 8. The beverage dispensing appliance of claim 6, wherein the ambient water reservoir is manually filled by a user. 9. The beverage dispensing appliance of claim 1, wherein the pressurized water reservoir is pressurized by compressed air. 10. A refrigerator comprising: (i) a refrigeration system, the refrigeration system comprising: a compressor;a condenser adapted to provide a high-pressure refrigerant;a compressor discharge line disposed downstream the compressor and configured to loop through the condenser;an evaporator disposed downstream and in fluid communication with the compressor discharge line; anda three-way valve disposed between the condenser and the evaporator; and(ii) a bladder pump system, the bladder pump system comprising: a parallel refrigerant line disposed between the three-way valve and the evaporator;a canister disposed in the parallel refrigerant line and in fluid communication with the compressor and the evaporator;a flexible bladder configured within the canister and adapted to hold potable liquid;a pressurized water reservoir disposed downstream the bladder; anda dispenser; and(iii) a controller operatively coupled to the refrigeration system and the bladder pump system for selectively operating the refrigerator in a refrigeration mode and a dispensing mode, wherein in the refrigeration mode, the high-pressure refrigerant is directed by the three-way valve to the evaporator, and wherein in the dispensing mode, the high-pressure refrigerant is diverted into the parallel refrigerant line through the canister and back into the evaporator. 11. The refrigerator of claim 10, wherein the bladder comprises an inlet valve and an outlet valve. 12. The refrigerator of claim 11, wherein in the refrigeration mode the inlet valve is open and the outlet valve is closed. 13. The refrigerator of claim 11, wherein in the dispensing mode the inlet valve is closed and the outlet valve is open. 14. The refrigerator of claim 10, further comprising a carbonator system disposed between and fluidly coupled with the pressurized water reservoir and the dispenser. 15. The refrigerator of claim 14, wherein the carbonator system comprises a carbonator in fluid communication with the pressurized water reservoir and the dispenser. 16. The refrigerator of claim 15, further comprising a carbon dioxide bottle with a regulator in fluid communication with the carbonator. 17. The refrigerator of claim 10, further comprising an ambient water reservoir. 18. The refrigerator of claim 10, wherein the evaporator is disposed within the pressurized water reservoir. 19. A method of pumping liquid through a refrigerator dispenser, the method comprising: providing a refrigeration system comprising a compressor, compressor discharge line, condenser, three-way valve, evaporator, and a suction line in serial fluid communication;providing a water dispensing system comprising a water inlet, bladder feed line, a flexible bladder, bladder outlet line, pressurized water reservoir, dispenser line, and a dispenser;providing a canister within a refrigerant line in parallel to the refrigeration system between the three-way valve and the evaporator,filling the bladder with liquid;selecting a dispensing mode for the refrigerator;opening the three-way valve path between the condenser and the canister;pressurizing the canister with high-pressure refrigerant from the compressor;collapsing the bladder with the high-pressure refrigerant in the canister;urging the liquid within the bladder through the bladder outlet line and into the pressurized water reservoir;cooling the liquid in the pressurized water reservoir through thermal contact with the evaporator;urging the liquid from the pressurized water reservoir through the dispenser line; anddispensing the liquid to a user. 20. The method of claim 19, further comprising the steps of providing a carbonizer disposed between the pressurized water reservoir and the dispenser and carbonizing the liquid prior to dispensing.
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이 특허에 인용된 특허 (12)
Scott Alistair (32 Mill Lane Impington Cambridge CB4 4XN GB2) Pearson Allen J. (17 Docksgate Somersham Cambridge PE17 3NZ GB2) Collins James T. (22 Primrose Drive Yaxley Peterborough GB2), Apparatus for making or dispensing drinks.
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