Ice making appliance and pumping systems therefor
Patent Information
- Application Number
- PCT/CN2025/082276
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-09-17
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Figure CN2025082276_17092026_PF_FP_ABST
Abstract
Description
ICE MAKING APPLIANCE AND PUMPING SYSTEMS THEREFORFIELD OF THE INVENTION
[0001] The present subject matter relates generally to ice making appliances, and more particularly to water pumping and tubing systems within ice making appliances.BACKGROUND OF THE INVENTION
[0002] Ice makers generally produce ice for use by consumers, such as in beverages, for cooling food items, etc. Certain refrigerator appliances include ice makers for producing ice. The ice maker can be positioned within the appliance’s freezer chamber and direct ice into an ice bucket where the ice is stored within the freezer chamber. Such refrigerator appliances can also include a dispensing system for assisting a user with accessing ice produced by the refrigerator appliance’s ice maker. However, the incorporation of ice makers into refrigerator appliances can have drawbacks, such as limits on the amount of ice that can be produced and the reliance on the refrigeration system of the refrigerator appliance to form the ice.
[0003] Stand-alone ice makers are separate from refrigerator appliances and provide independent ice supplies. Generally, liquid water is added to the stand-alone ice makers, and the ice makers operate to freeze the liquid water and form ice. Users may connect external water sources or may frequently add tap water to the stand-alone ice makers for making ice. In general, water may include various impurities that may negatively affect the appearance and / or taste of ice cubes formed from the water. Further, water may, over time, lead to scale buildup within the ice maker.
[0004] Traditional methods of operating a stand mixer include pumping water to a reservoir that includes a level sensor and holding water within the ice maker and reservoir until an ice making operation is initiated. As such, water may remain within the ice maker and the reservoir after the ice making operation whereby scale build-up may occur within the ice maker, the reservoir, and water tubes therebetween. Accordingly, an ice maker that reduces scale build-up and reduces overall product complexity would be advantageous. BRIEF DESCRIPTION OF THE INVENTION
[0005] Aspects and advantages of the invention will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.
[0006] In one example embodiment, a method of operating an ice making appliance is provided. The ice making appliance includes a casing and a reservoir disposed within the casing. The reservoir is configured to hold liquid. The reservoir is the only liquid holding reservoir of the stand-alone ice making appliance. The stand-alone ice making appliance also includes an ice maker and a gear pump disposed within the casing. The gear pump is fluidly coupled to the reservoir and the ice maker. The method includes the gear pump pumping water from the reservoir to the ice maker during an ice making operation, and the gear pump draining water from the ice maker to the reservoir after the ice making operation.
[0007] In another example embodiment, an ice making appliance is provided. The ice making appliance includes a casing, an ice maker disposed within the casing, and a gear pump disposed within the casing. The gear pump is fluidly coupled to the reservoir and the ice maker. The gear pump is configured to pump water from the reservoir to the ice maker during an ice making operation and drain water from the ice maker to the reservoir after the ice making operation.
[0008] These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.BRIEF DESCRIPTION OF THE DRAWINGS
[0009] A full and enabling disclosure of the present invention, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures.
[0010] FIG. 1 provides a perspective view of an appliance according to an example embodiment of the present subject matter.
[0011] FIG. 2 provides a perspective section view of the example appliance of FIG. 1.
[0012] FIG. 3 provides a perspective view of the example appliance of FIG. 1, with a casing of the example appliance removed to show interior components of the example appliance.
[0013] FIG. 4 provides a schematic view of the example appliance of FIG. 1, according to aspects of the present subject matter.
[0014] FIG. 5 provides a side view of an example gear pump, according to aspects of the present subject matter.
[0015] FIG. 6 provides a flowchart of an example method of operating an appliance, according to aspects of the present subject matter.
[0016] Repeat use of reference characters in the present specification and drawings is intended to represent the same or analogous features or elements of the present invention.DETAILED DESCRIPTION
[0017] Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.
[0018] As used herein, the terms “includes” and “including” are intended to be inclusive in a manner similar to the term “comprising. ” Similarly, the term “or” is generally intended to be inclusive (i.e., “A or B” is intended to mean “A or B or both” ) . Approximating language, as used herein throughout the specification and claims, is applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as “about, ” “approximately, ” and “substantially, ” are not to be limited to the precise value specified. In at least some instances, the approximating language may correspond to the precision of an instrument for measuring the value. For example, the approximating language may refer to being within a ten percent (10%) margin.
[0019] The terms “upstream” and “downstream” refer to the relative flow direction with respect to liquid flow in a liquid pathway. For example, “upstream” refers to the flow direction from which the liquid flows, and “downstream” refers to the flow direction to which the liquid flows.
[0020] Referring now to FIGS. 1 through 3, one embodiment of an appliance 10 in accordance with the present disclosure is illustrated. As shown, appliance 10 is provided as a stand-alone ice making appliance embodiment. Appliance 10 includes an outer casing 12 which defines a primary opening 11 (e.g., first primary opening) and an internal cavity or volume 13. Internal volume 13 generally at least partially houses various other components of the appliance therein 10. Primary opening 11 defined in outer casing 12 may extend internal volume 13 to an ambient environment. Through primary opening 11, access (e.g., by a user) to the internal volume 13 may be permitted. Outer casing 12 further defines a vertical direction V, a lateral direction L, and a transverse direction T. The vertical direction V, lateral direction L, and transverse direction T are mutually perpendicular and form an orthogonal direction system.
[0021] A container 14 of appliance 10 is also illustrated. Container 14 defines a first storage volume 16 for the receipt and storage of ice 18 therein. A user of the appliance 10 may access ice 18 within the container 14 for consumption or other uses, as described in detail below. Container 14 may include multiple walls, including one or more sidewalls 20 and a base wall 22, which may together define the first storage volume 16. In example embodiments, at least one sidewall 20 may be formed in part from a clear, see-through (i.e., transparent, or translucent) material, such as a clear glass or plastic, such that a user can see into the first storage volume 16 and thus view ice 18 therein. For instance, at least one sidewall 20 may include a separate external panel and internal panel formed from a clear, see-through (i.e., transparent, or translucent) material, such as a clear glass or plastic. In some example embodiments, container 14 may include a handle 17. In general, handle 17 may advantageously improve accessibility to ice 18 within container 14. Further, in example embodiments, container 14 may be removable, such as from the outer casing 12, by a user. This facilitates advantageous easy access by the user to ice within container 14, as discussed below. In general, a user interface 15 may be positioned on casing 12 above container 14. User interface 15 may generally include input selectors to be selected (e.g., by a user) for controlling the appliance 10.
[0022] Appliances 10 in accordance with the present disclosure are advantageously stand-alone appliances, and thus are not connected to refrigerators or other appliances. Additionally, in example embodiments, such appliances are not connected to plumbing or another water source that is external to the appliance 10, such as a refrigerator water source. Rather, in example embodiments, water is initially supplied to the appliance 10 manually by a user, such as by pouring water into a reservoir 24, e.g., reservoir 24 may be a water source for appliance 10. Optionally, in example embodiments, reservoir 24 may be removable, such as from the outer casing 12, by a user. This facilitates advantageous easy access by the user to reservoir 24 (e.g., in order to easily fill, or empty, reservoir 24) , as discussed below. However, it may be understood by one of ordinary skill in the art that aspects of the present subject matter may be applied to ice making appliances of refrigerator appliances, such as a refrigerator door ice making appliance, or otherwise connected to plumbing or another water source external to appliance 10.
[0023] As discussed herein, appliance 10 is configured to make nugget ice. Ice 18 may be nugget ice. Generally, nugget ice is ice that that is maintained or stored (i.e., in first storage volume 16 of container 14) at a temperature greater than the melting point of water or greater than about thirty-two degrees Fahrenheit. Accordingly, the ambient temperature of the environment surrounding container 14 may be at a temperature greater than the melting point of water or greater than about thirty-two degrees Fahrenheit. In some embodiments, such temperature may be greater than forty degrees Fahrenheit, greater than fifty degrees Fahrenheit, or greater than sixty degrees Fahrenheit.
[0024] Still referring to FIGS. 1 through 3, various components of appliance 10 in accordance with the present disclosure are illustrated. For example, as mentioned, appliance 10 includes reservoir 24. The reservoir 24 defines a second storage volume 26 for the receipt and holding of water. In particular, reservoir 24 may be the only, sole, or singular, fluid holding reservoir of stand-alone ice making appliance 10. Reservoir 24 may include multiple walls, including one or more sidewalls 28 and a base wall 30, which may together define the second storage volume 26. In example embodiments, reservoir 24 may be disposed below the container 14 along the vertical direction V defined for the appliance 10, as shown. As such, in some example embodiments, container 14 may include a drain (not labeled) through which melted water may return to reservoir 24.
[0025] As discussed, in example embodiments, water is provided to the reservoir 24 for use in forming ice. Accordingly, appliance 10 may further include a pump 32. Pump 32 may be in fluidly coupled with the second storage volume 26. For example, water may be flowable from the second storage volume 26 through a fluid outlet 31 defined in the reservoir 24, such as in a sidewall 28 thereof, and may flow through a conduit to and through pump 32. Pump 32 may, when activated, be operable to actively flow water from the second storage volume 26 therethrough and from pump 32.
[0026] Water actively flowed from pump 32 may be flowed, such as through a conduit 110, to an ice maker 50 for the production of ice. For example, water may flow through pump 32 through suitable conduits, such as conduit 110, to an inlet, e.g., ice maker inlet 51 of ice maker 50. For example, pump 32 may be positioned in-line with conduit 110. As will be described further below, when the ice making operation is complete, water may be drained from ice maker 50 to reservoir 24 through conduit 110.
[0027] Ice maker 50 generally receives water, such as from reservoir 24, and freezes the water to form ice 18. In example embodiments, ice maker 50 is a nugget ice maker, and in particular is an auger-style ice maker, although other suitable styles of ice makers and / or appliances are within the scope and spirit of the present disclosure. As shown, ice maker 50 may include a casing 52 into which water from second storage volume 26 is flowed. Casing 52 is thus in fluid communication with second storage volume 26. For example, casing 52 may include one or more sidewalls 54 which may define an interior volume 56, and an opening may be defined in a sidewall 54. Water may be flowed from second storage volume 26 through the opening (such as via conduit 110) into the interior volume 56.
[0028] As illustrated, an auger 60 may be disposed at least partially within casing 52. During operations, such as during an ice making operation, e.g., an operation for making ice within appliance 10, the auger 60 may rotate. Water within casing 52 may at least partially freeze due to heat exchange, such as with a refrigeration system as discussed herein. The at least partially frozen water may be lifted by the auger 60 from casing 52. Further, in example embodiments, the at least partially frozen water may be directed by auger 60 to and through an extruder 62. Extruder 62 may extrude the at least partially frozen water to form ice, such as nuggets of ice 18.
[0029] Formed ice 18 may be provided by the ice maker 50 to container 14 and may be received in the first storage volume 16 thereof. For example, ice 18 formed by auger 60 and / or extruder 62 may be provided to container 14. In example embodiments, appliance 10 may include a chute 70 for directing ice 18 produced by the ice maker 50 towards the first storage volume 16. For example, as shown, chute 70 is generally positioned above container 14 along the vertical direction V. Thus, ice can slide off of chute 70 and drop into storage volume 16 of container 14. Chute 70 may, as shown, extend between ice maker 50 and container 14, and may include a body 72, which defines a passage 74 therethrough. Ice 18 may be directed from the ice maker 50 (such as from the auger 60 and / or extruder 62) through passage 74 to the container 14. In some embodiments, for example, a sweep 64, which may be connected to and rotate with the auger, may contact the ice emerging through the extruder 62 from the auger 60 and direct the ice 18 through the passage 74 to the container 14.
[0030] As discussed, water within casing 52 may at least partially freeze due to heat exchange, such as with a refrigeration system. In example embodiments, ice maker 50 may include a sealed refrigeration system 80. The sealed refrigeration system 80 may be in thermal communication with the casing 52 to remove heat from the casing 52 and interior volume 56 thereof, thus facilitating freezing of water therein to form ice. Sealed refrigeration system 80 may, for example, include a compressor 82, a condenser 84, a throttling device 86, and an evaporator 88. Evaporator 88 may, for example, be in thermal communication with the casing 52 in order to remove heat from the interior volume 56 and water therein during operation of sealed system 80. For example, evaporator 88 may at least partially surround casing 52. In particular, evaporator 88 may be a conduit coiled around and in contact with casing 52, such as the sidewall (s) 54 thereof.
[0031] It should additionally be noted that, in example embodiments, a controller 200 may be in operative communication with the sealed system 80, such as with the compressor 82 thereof, and may activate the sealed system 80 as desired or required for ice making purposes. In example embodiments, controller 200 is in signal / operative communication with pump 32. Such operative communication may be via a wired or wireless connection and may facilitate the transmittal and / or receipt of signals by the controller 200 and pump 32. Controller 200 may be configured to activate the pump 32 to actively flow water, such as when ice maker 50 is making ice.
[0032] Controller 200 may include one or more memory devices and one or more microprocessors, such as general or special purpose microprocessors operable to execute programming instructions, such as method 400, or micro-control code. The memory may represent random access memory such as DRAM or read only memory such as ROM or FLASH. In one embodiment, the processor executes programming instructions stored in memory. The memory may be a separate component from the processor or may be included onboard within the processor. Alternatively, controller 200 may be constructed without using a microprocessor, e.g., using a combination of discrete analog and / or digital logic circuitry (such as switches, amplifiers, integrators, comparators, flip-flops, AND gates, and the like) to perform control functionality instead of relying upon software.
[0033] Turning now to FIGS. 4 and 5, pump 32 may generally be a gear pump disposed within casing 12. In general, gear pump 32 may be fluidly coupled to reservoir 24 and ice maker 50. For example, gear pump 32 may flow water from reservoir 24 to ice maker 50, such as for making ice during an ice making operation. In general, some example embodiment may include controller 200 configured to operate gear pump 32 continuously during an ice making operation, such as to constantly flow water into ice maker 50. In further example embodiments, controller 200 may be configured to operate gear pump 32 precisely during an ice making operation, such as to flow a specified amount of water into ice maker 50. For example, gear pump 32 may provide a specified volume of water from reservoir 24 to ice maker 50, whereby controller 200 may control gear pump 32 to provide a specified amount of water to ice maker 50. For example, the specified volume of water provided by gear pump 32 may be between one-tenth milliliter (0.1 mL) and one thousand milliliter (1000 mL) , such as between one-fifth milliliter (0.2 mL) and five hundred milliliter (500 mL) , such as between one-half milliliter (0.5 mL) and one hundred milliliter (100 mL) .
[0034] Looking specifically at FIG. 5, gear pump 32 may generally define an inlet 33 and an outlet 35. In general, gear pump 32 may include a housing 300, a flow path 302, and a two or more gears 304, e.g., shown in FIG. 5 with two (2) gears 304. For example, gear pump 32 is a type of positive displacement pump configured to pump liquids, such as water, around gears 304, such as through flow path 302 inside housing 300. In general, gear pump 32 may rotate gears 304, which may define a plurality of teeth (not labeled) extending outward toward flow path 302, to capture water between the teeth of gears 304 as gears 304 rotate. In particular, the captured water within the teeth of gears 304 may be forced around gears 304 through flow path 302. Additionally, at inlet 33, flow path 302 may be open such that after the teeth of gears 304 pass, more water may be drawn between the teeth and around flow path 302. As such, water may be drawn in through inlet 33, forced around flow path 302, and ejected from gear pump 32 from outlet 35. Additionally or alternatively, gear pump 32 may be operated in reverse, e.g., water may be drawn in through outlet 35, forced around flow path 302, and ejected from gear pump 32 from inlet 33. One of skill in the art would understand that the gear pump shown in FIG. 5 is provided for example purposes only and gear pump 32 may be any suitable configuration of housing, gears, teeth, e.g., other example gear pumps may include three (3) gears, or four (4) or more gears, and / or gears 304 with various quantities of teeth, e.g., about ten (10) teeth or more. In general, gears 304 may include complementary teeth, e.g., a gear ratio between gears may be 1: 1.
[0035] Returning now to FIG. 4, provided is a water path diagram 100 illustrating a general route water within appliance 10 may follow. In general, during an ice making operation, water from reservoir 24 may be pulled by gear pump 32 through inlet 33 and flowed to ice maker 50 through outlet 35, e.g., water may flow from inlet 33 to outlet 35. In other words, gear pump 32 may pump water directly into ice maker 50 from reservoir 24. In general, water may be drained from ice maker 50, e.g., flowing from ice maker 50 to reservoir 24, e.g., through conduit 110, from outlet 35 to inlet 33 of gear pump 32, when the ice making operation is complete. In other words, when the ice making operation is complete, gear pump 32 may be reversed in order to actively drain water from ice maker 50, through gear pump 32, e.g., from outlet 35 to inlet 33, and into reservoir 24. As such, when appliance 10 has completed an ice making operation, ice maker 50 may be drained of residual water, and any dissolved solids therein. Accordingly, the residual water and dissolved solids may be drained to reservoir 24, whereby a user may remove reservoir 24 from casing 12 and discard the water. Additionally or alternatively, in other example embodiments, appliance 10 may be connected to plumbing, such as a drain tube 112, whereby the residual water and dissolved solids may be drained to reservoir 24 and out of appliance 10 through drain tube 112. In general, drain tube 112 may be fluidly coupled to any suitable external drain or municipal water or sewage system.
[0036] In general, some example embodiments may include a filter 120 positioned within casing 12. In particular, filter 120 may be positioned in-line with conduit 110 of appliance 10. For example, filter 120 may include activated carbon, e.g., filter 120 may be a carbon-block filter, which may filter unwanted contaminants from water flowing through conduit 110. In general, gear pump 32 may overcome a water pressure resistance of filter 120, where, other pumps, such as diaphragm pumps, may not overcome the water pressure resistance of filter 120. As such, gear pump 32 may advantageously improve the quality of appliance 10 by permitting the use of filter 120 within appliance 10. One of skill in the art would understand that filter 120 is provided for example purposes only and other example embodiments may include other suitable types of filters or exclude filter 120 altogether.
[0037] Referring now to FIG. 6, a flow diagram of one embodiment of a method 400 of operating appliance 10 is illustrated in accordance with aspects of the present subject matter. In general, method 400 will be described herein with reference to the embodiments of appliance 10 and related elements described above with reference to FIGS. 1-5. However, it should be appreciated by those of ordinary skill in the art that the disclosed method 400 may generally be utilized in association with apparatuses and systems having any other suitable configuration. In addition, although FIG. 6 depicts steps performed in a particular order for purposes of illustration and discussion, the method discussed herein is not limited to any particular order or arrangement. One skilled in the art, using the disclosures provided herein, will appreciate that various steps of the method disclosed herein can be omitted, rearranged, combined, and / or adapted in various ways without deviating from the scope of the present disclosure.
[0038] As shown in FIG. 6, at (410) , method 400 may generally include gear pump 32 pumping water from reservoir 24 to ice maker 50. In particular, during an ice making operation, gear pump 32 may operate to pump water from reservoir 24 to ice maker 50. For example, method 400 may generally include gear pump 32 pulling (e.g., pumping) water from reservoir 24 through inlet 33, pushing the water through outlet 35, and flowing the water to ice maker 50. As described above, gear pump 32 may operate precisely during an ice making operation, such as to flow the specified amount of water into ice maker 50.
[0039] Additionally, at (420) , method 400 may generally include, after the ice making operation, draining water from ice maker 50 back through gear pump 32 to reservoir 24. In general, draining water from ice maker 50 to reservoir 24 includes pulling (e.g., pumping) water from ice maker 50 back through outlet 35 and inlet 33 of gear pump 32 to reservoir 24. As such, draining the water from ice maker 50 may also drain any dissolved solids, e.g., total dissolved solids (TDS) , within the water from ice maker 50 into reservoir 24. Accordingly, a user may remove and clean reservoir 24, thereby removing the total dissolved solids from appliance 10 and advantageously reducing scale buildup in ice maker 50 of appliance 10.
[0040] As may be seen from the above, a gear pump may be positioned within an ice making appliance. The gear pump may be operated during an ice making operation to ensure a stable water flow between a reservoir and an ice engine. Providing a stable water flow may aid in preventing the ice engine from freezing or locking up. Accordingly, the appliance may advantageously manage the water level within the ice engine without the use of additional reservoirs and / or sensors, thereby reducing overall complexity of the appliance. When the appliance is complete with an ice making operation, the gear pump may operate to drain the water, and any dissolved solids within the water, from the ice engine into the reservoir. Accordingly, a user may remove and clean the reservoir, thereby removing dissolved solids from the appliance and reducing scale buildup in the appliance.
[0041] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
Claims
1.A method of operating an ice making appliance, the ice making appliance comprising a casing, and a reservoir disposed within the casing, the reservoir configured to hold liquid, the reservoir being the only liquid holding reservoir of the ice making appliance, an ice maker disposed within the casing, and a gear pump disposed within the casing, the gear pump fluidly coupled to the reservoir and the ice maker, the method comprising:pumping, by the gear pump, water from the reservoir to the ice maker during an ice making operation; anddraining, by the gear pump, water from the ice maker to the reservoir after the ice making operation.2.The method of claim 1, wherein the ice making appliance comprises a controller positioned in the casing, the controller in signal communication with the gear pump, wherein pumping water from the reservoir comprises operating, by the controller, the gear pump to pump the water from the reservoir to the ice maker, and wherein draining water from the ice maker to the reservoir after the ice making operation comprises operating, by the controller, the gear pump.3.The method of claim 1, wherein the gear pump defines an inlet and an outlet, wherein draining the water from the ice maker comprises operating the gear pump in reverse to flow water from the ice maker into the outlet and through the inlet and back to the reservoir.4.The method of claim 1, wherein pumping the water from the reservoir comprises the gear pump flowing a specified volume of water from the reservoir to the ice maker.5.The method of claim 1, wherein a conduit extends between the reservoir and the ice maker, wherein pumping, by the gear pump, water from the reservoir to the ice maker during an ice making operation comprises pumping water through the conduit by the gear pump.6.The method of claim 5, wherein a filter is positioned within the casing, the method further comprising pumping, by the gear pump, water through the filter.7.The method of claim 6, wherein the filter is positioned on the conduit in-line with the gear pump and the ice maker, wherein pumping, by the gear pump, water through the filter comprises pumping, by the gear pump, water from the reservoir to the ice maker through the filter during an ice making operation.8.The method of claim 1, further comprising removing the reservoir from the casing of the ice making appliance.9.The method of claim 1, wherein the ice making appliance further comprises an auger disposed in the ice maker, the method further comprising lifting, by the auger, partially frozen water through the ice maker.10.An ice making appliance, comprising:a casing;an ice maker disposed within the casing;a gear pump disposed within the casing, the gear pump fluidly coupled to a reservoir and the ice maker, the gear pump configured to:pump water from the reservoir to the ice maker during an ice making operation; anddrain water from the ice maker to the reservoir after the ice making operation.11.The ice making appliance of claim 10, further comprising a controller positioned in the casing, the controller in signal communication with the gear pump, the controller configured to operate the gear pump to pump water from the reservoir to the ice maker and to drain water from the ice maker to the reservoir.12.The ice making appliance of claim 10, wherein the gear pump defines an inlet and an outlet, wherein the gear pump is configured to drain the water from the ice maker by operating in reverse to flow water from the ice maker into the outlet and through the inlet and back to the reservoir.13.The ice making appliance of claim 10, wherein the gear pump is configured to flow a specified volume of water from the reservoir to the ice maker.14.The ice making appliance of claim 10, wherein a conduit extends between the reservoir and the ice maker, the gear pump positioned on the conduit in-line with the reservoir and the ice maker.15.The ice making appliance of claim 14, further comprising a filter positioned within the casing.16.The ice making appliance of claim 15, wherein the filter is positioned on the conduit in-line with the gear pump and the ice maker.17.The ice making appliance of claim 10, wherein the ice making appliance is one of a stand-alone nugget ice making appliance and a refrigerator door nugget ice making appliance.18.The ice making appliance of claim 10, further comprising an auger disposed in the ice maker, the auger configured to lift partially frozen water through the ice maker.