Refrigerator appliance and method for use with single serve dispenser

1. A refrigerator appliance for use with a single serve dispenser, comprising:

a cabinet defining a chilled chamber for receiving food or beverage items for storage, the cabinet defining an opening for accessing the chilled chamber;

a door mounted to the cabinet at the opening of the cabinet, the door defining a dispenser recess; and

a dispensing assembly, the dispensing assembly comprising:

an outlet conduit configured for flowing a liquid therefrom, the outlet conduit disposed in the dispenser recess;

a single serve dispenser containing a predetermined amount of a substance to be mixed with the liquid, the single serve dispense positioned in the dispensing assembly such that the liquid and substance mixture flows to a container placed below the single serve dispenser;

a housing supporting the single serve dispenser, the housing disposed in the dispenser recess; and

a flow control device upstream of and in fluid communication with the outlet conduit, the flow control device outputting liquid at a generally constant pressure.

2. The refrigerator appliance of claim 1 , wherein the flow control device comprises as piston, a cylinder, and a spring.

3. The refrigerator appliance of claim 1 , wherein the flow control device is a pressure compensation flow control valve.

4. The refrigerator appliance of claim 1 , wherein the dispensing assembly further comprises a fluid heating assembly disposed between the flow control device and the outlet conduit.

5. The refrigerator appliance of claim 4 , wherein the fluid heating assembly comprises a holding chamber and a heating element disposed in the holding chamber.

6. The refrigerator appliance of claim 4 , wherein the dispensing assembly further comprises an expansion chamber coupled to the fluid heating assembly.

7. The refrigerator appliance of claim 6 , wherein the dispensing assembly further comprises a pump configured to selectively evacuate the expansion chamber.

8. The refrigerator appliance of claim 1 , wherein liquid is supplied to the flow control device at a variable pressure.

9. The refrigerator appliance of claim 1 , wherein the outlet conduit contacts the single serve dispenser when the liquid is flowing from the outlet conduit.

10. The refrigerator appliance of claim 1 , wherein one of the outlet conduit and the housing is movable along a direction towards the other of the outlet conduit and the housing.

11. A refrigerator appliance for use with a single serve dispenser, comprising:

a cabinet defining a chilled chamber for receiving food or beverage items for storage, the cabinet defining an opening for accessing the chilled chamber;

a door mounted to the cabinet at the opening of the cabinet, the door defining a dispenser recess; and

a dispensing assembly, the dispensing assembly comprising:

an outlet conduit configured for flowing a liquid therefrom, the outlet conduit disposed in the dispenser recess;

a single serve dispenser containing a predetermined amount of a substance to be mixed with the liquid, the single serve dispenser positioned in the dispensing assembly such that the liquid and substance mixture flows to a container placed below the single serve dispenser;

a housing supporting the single serve dispenser, the housing disposed in the dispenser recess;

a pressure compensation flow control valve upstream of and in fluid communication with the outlet conduit, the pressure compensation flow control valve outputting liquid at a generally constant pressure;

a supply valve actuatable to an open position wherein liquid flows to the pressure compensation flow control valve; and

a fluid heating assembly disposed upstream of the outlet conduit.

12. The refrigerator appliance of claim 11 , wherein the fluid heating assembly comprises a holding chamber and a heating element disposed in the holding chamber.

13. The refrigerator appliance of claim 11 , wherein the dispensing assembly further comprises an expansion chamber coupled to the fluid heating assembly.

14. The refrigerator appliance of claim 13 , wherein the dispensing assembly further comprises a pump configured to selectively evacuate the expansion chamber.

15. A method for operating a refrigerator appliance, the method comprising:

providing a single serve dispenser in a housing, the housing disposed in a dispenser recess defined in the refrigerator appliance, the single serve dispenser containing a predetermined amount of a substance to be mixed with a liquid;

flowing the liquid through a flow control device such that the liquid is output from the flow control device at a generally constant pressure; and

flowing the liquid through an outlet conduit into the single serve, dispenser at a generally constant flow rate,

wherein the generally constant flow rate is caused by the generally constant pressure generated by the flow control device, and

wherein the single serve dispenser is positioned in the housing such that the liquid and substance mixture flows to a container placed below the single serve dispenser.

16. The method of claim 15 , further comprising heating the liquid.

17. The method of claim 16 , wherein the liquid is heated at a location downstream of the flow control device.

18. The method of claim 15 , wherein no pump is required for flowing the liquid through the outlet conduit.

19. The method of claim 15 , further comprising flowing liquid to the flow control device at a variable pressure.

20. The method of claim 15 , further comprising moving one of the housing or the outlet conduit such that the outlet conduit contacts the single serve dispenser.