Washing and rinsing arm system for dishwasher

Abstract

A dishwasher assembly having a wash arm and a rinse arm (10005, 1006) in a configuration that is rotated using a hub assembly (1002, 1003). A dishwasher (100) for washing dishes, comprising: a single wash and rinse arm assembly comprising a first set of nozzles configured for washing dishes with wash water and a second set of nozzles configured for rinsing dishes with rinse water; and a hub (1002, 1003) including a first channel for providing wash water to the first set of nozzles of the arm assembly and a second channel for providing rinse water to the second set of nozzles of the arm assembly, where the arm assembly rotates on the hub to spray wash water and rinse water onto dishes in the machine.

Description

Priority Statement

[0001] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 509,003, filed June 19, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This subject matter relates generally to apparatus and methods for dishwashers, and more particularly to apparatus and methods for dishwashers having integrated rinsing and washing arm assemblies. Background Technology

[0003] Some conventional dishwashers have separate washing and rinsing arms in multiple components stacked on top of each other. This design uses separate mechanical components for the washing and rinsing functions, requiring space within the dishwasher for each component. What is needed in the art is a system that allows for more compact washing components and dishwashers, ease of manufacture and assembly, and reduced costs. Summary of the Invention

[0004] This subject matter addresses the aforementioned and other needs in the art and provides methods and apparatus for a dishwasher configured to perform rinsing and washing using a single arm assembly and distinct wash and rinse water paths in a compact design. This unique combined arm and support hardware eliminates the obstruction of either the wash or rinse arm in conventional dual-arm designs, increasing internal headroom without increasing footprint and reducing the number of parts required to manufacture the design. Among other improvements, these improvements allow the machine to be designed as a recirculating freshwater fill dishwasher, rather than a dump-fill machine, without the need for hood replacement. In various embodiments, a fixed hub receives input from two independent liquid sources (e.g., wash water and rinse water) and directs the flow to the attached wash / rinse arm. The two liquid sources remain separate within the arm and are delivered to the washing chamber via nozzles, and the resulting flow also propels the rotation of the arm within the assembly. Attached Figure Description

[0005] In accompanying drawings that are not necessarily drawn to scale, similar reference numerals may describe similar components in different views. Similar reference numerals with different letter suffixes may indicate different instances of similar components. The accompanying drawings illustrate, by way of example and not limitation, the various embodiments discussed in this document.

[0006] Figure 1 An example of a dishwashing apparatus with washing and rinsing components that can be implemented using various embodiments of this topic is shown.

[0007] Figure 2 An example of the interior of a dishwasher according to various implementations of this topic is shown.

[0008] Figure 3 The image shows a side view of an example sink and pump system for a dishwasher.

[0009] Figure 4 Examples Figure 3 A perspective view of an example water tank.

[0010] Figure 5 Examples Figure 1 Another perspective view of an example dishwasher.

[0011] Figure 6 An example of an implementation scheme based on this topic is shown. Figure 1 A block diagram of an example dishwasher.

[0012] Figure 7 Block diagrams are shown illustrating example machines on which any one or more of the techniques discussed herein can be executed, according to various implementations of this topic.

[0013] Figures 8A to 8C Different views of a dual-hub washing and rinsing system for washing and rinsing dishes in a dishwasher, according to one embodiment of this subject matter, are shown.

[0014] Figure 9A A perspective view of the lower washing and rinsing arm assembly and the lower hub according to one embodiment of this subject matter is shown.

[0015] Figure 9B An exploded view of the lower hub according to one embodiment of this subject is shown.

[0016] Figure 9C An example of a washing arm and a rinsing arm connected to a hub according to one embodiment of this subject matter is shown.

[0017] Figures 10A to 10D An example of a shaft arm according to one embodiment of this topic is shown.

[0018] Figures 11A to 11F An example of an arm hub according to one embodiment of this subject is shown.

[0019] Figures 12A to 12D An example of a lower hub according to one embodiment of this subject is shown.

[0020] Figures 13A to 13D An example of an upper hub according to one embodiment of this subject is shown. Detailed Implementation

[0021] Figure 1An example of a dishwasher apparatus with washing and rinsing components that can be implemented using this subject matter is illustrated. In various examples, the dishwasher 100 is sized and shaped for installation under a countertop. In various examples, the dishwasher 100 is sized and shaped for countertop use. This subject matter is applicable to both household and commercial dishwashers; therefore, the examples provided herein are not intended to be exclusive or limiting.

[0022] Dishwasher parts

[0023] A dishwasher 100 typically includes a washing chamber 110 (e.g., a tub, chamber, dishware, etc.), washing arms 120 (or multiple washing arms that may be positioned in different locations within the machine), a door 140, and a body 130 that provides the watertight washing chamber 110. Items positioned in the washing chamber 110 can be cleaned (e.g., washed, scrubbed, sanitized, sterilized, etc.) during operation of the dishwasher 100. For example, tableware (e.g., glasses, cups, silverware, plates, etc.), medical instruments, etc., can be cleaned by the dishwasher 100. The washing arms 120 located in the washing chamber 110 are configured to rotate when they spray liquids (e.g., water, a solution of water and soap, a solution of water and detergent, etc.).

[0024] Figure 2 An example of the interior of a dishwasher 100 according to various embodiments of this subject is illustrated. The dishwasher 100 may include a sink 200 that receives liquid from a wash chamber 110 during operation of the dishwasher 100. For example, the sink 200 may be coupled to the body 130 of the dishwasher 100. The sink 200 may define the bottom of the wash chamber 110, and liquid within the wash chamber 110 may drain into the sink 200.

[0025] The dishwasher 100 may include a base 210 and a maintenance compartment 220. The maintenance compartment 220 may accommodate one or more components of the dishwasher 100. A sink 200 may be positioned between the washing chamber 110 and the maintenance compartment 220. For example, the sink 200 may separate the maintenance compartment from the washing chamber 110.

[0026] Figure 3A side view illustrating an example of a sink 200 and a pump system 300 of a dishwasher 100 is shown. The sink 200 may extend at least partially into a service compartment 220. The pump system 300 may include a pump 310 that recirculates liquid within the dishwasher 100. For example, one or more hoses 320 may interconnect the sink 200 with the pump system 300, and the sink 200 may supply liquid to the pump 310. The pump system 300 may help facilitate the drainage of liquid from the dishwasher 100. In one example, the pump system 300 may supply liquid to the wash arm 120, for example, to facilitate the spraying of liquid with the wash arm 120.

[0027] The sink 200 may include a drip tray 330, and the drip tray 330 may include a tray inlet 340. The tray inlet 340 may receive liquid from the wash chamber 110. For example, the liquid may be sprayed by the wash arm 120 (e.g., as...). Figure 1 As shown), and the liquid can flow within the washing chamber 110 to the tray inlet 340, and the liquid can be received by the collection tray 330 (e.g., drained, dripped, flowed in or similarly).

[0028] The sink 200 may include a collection well 350. The collection well 350 may be connected to a collection tray 330, and the collection well 350 may receive liquid from the collection tray 330. In one example, the collection well 350 may collect liquid from the collection tray 330 (and the washing chamber 11). For example, liquid received by the collection tray 330 may flow into the collection well 350, and the collection well 350 may collect the liquid.

[0029] As described herein, tank 200 can supply liquid to pump 310. For example, recirculation flange 360 ​​can be connected to tank 200, or, for example, flange 360 ​​can be connected to manhole 350. In one example, flange 360 ​​can be connected to manhole 350 at an angle (e.g., relative to the wall of manhole 350).

[0030] The recirculation flange 360 ​​facilitates the connection between the water tank 200 and the hose 320. Liquid collected by the sump 350 can flow out of the sump 350, through the recirculation flange 360 ​​and the hose 320, and can flow into the pump 310. The water tank 200 can help reduce the occurrence of pitting corrosion within the pump 310. For example, the sump 330 and the sump 250 can cooperate to reduce pitting corrosion within the pump 310, for example, by providing a consistent liquid flow to the pump 310.

[0031] Figure 4 Examples Figure 3A perspective view of an example of a water tank 200. The water tank 200 may include a wellhead 400. The wellhead 400 may communicate with a collection tray 330, and the collection tray 330 may pass through the wellhead 400 to deliver liquid. For example, the collection tray 330 may include an inclined wall 410, and the inclined wall 410 may facilitate the discharge of liquid into a collection well 350 (e.g., through the wellhead 400). The inclined wall 410 may facilitate the collection of liquid in the collection tray 330 and the collection well 350.

[0032] The sink 200 may include a lip 420, and the lip 420 may facilitate the connection of the sink 200 to other components of the dishwasher 100, such as the sink 200 being connected to the body 130 or the washing chamber 110 (e.g., as shown in the image). Figure 1 (As shown). The sink 200 can be connected to the main body 130 (or washing chamber 110) by welding, fasteners, etc.

[0033] Figure 5 Examples Figure 1 Another perspective view of an example dishwasher 100. The body 130 is coupled to a base 210 defining a maintenance compartment 220, and the washing chamber 110 is defined by the body 130. The maintenance compartment 220 may accommodate one or more components 700 of the dishwasher 100, such as a pump system 300 (e.g., ... Figure 3 (The pump system shown). Component 700 may include a pump, a reservoir 705 (e.g., a cleaning product reservoir), hoses, a heater, a transformer, etc. Component 700 may be movably coupled to dishwasher 100, for example, to base 210. Hinge 710 facilitates movement of component 700 and enhances access to other components 700 within service compartment 220, thereby simplifying maintenance of dishwasher 100 (e.g., maintenance performed by a technician). Dishwasher 100 may include one or more guide rails 715 (in... Figure 5 (shown in dashed lines), and component 700 can slide on the guide rail to move the component, for example, to move the component to provide access to pump system 300 (e.g., as shown in dashed lines). Figure 3 (As shown).

[0034] Washing and rinsing system

[0035] Figures 8A to 8C Different views of a dual-hub washing and rinsing system 1000 for washing and rinsing dishes in a dishwasher (such as dishwasher 100) according to one embodiment of this subject matter are shown. Figure 8A A wash water inlet 1010 is shown, which receives pressurized wash water from the dishwasher's pump. The wash water flows through the lower hub 1003 to the lower wash arm 1005 and through the wash pipe 1008 to the upper hub 1002, where it is sprayed by the upper wash arm 1005. Figure 8AAlso shown is a rinse water inlet 1012, which receives pressurized rinse water from the dishwasher's pump (or some other pressurized rinse water source). The rinse water flows through the upper hub 1002 to the upper rinse arm 1006 and through the rinse pipe 1007 to the lower hub 1003, where it is sprayed by the lower rinse arm 1006. Thus, the system 1000 provides two independent fluid channels, one for wash water and one for rinse water.

[0036] Washing arms 1005 and rinsing arms 1006 are equipped with nozzles or other openings to facilitate washing and rinsing. In various embodiments, the washing arms have nozzles or openings larger than those of the rinsing arms to provide a greater volumetric flow rate of washing solution and allow any detergent in that solution to clean soiled dishes or other appliances in the dishwasher. Various embodiments may use different numbers of nozzles or openings, including but not limited to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 nozzles and / or openings; however, it should be understood that the number of nozzles and / or openings may vary without departing from the scope of this subject matter. The number of rinsing nozzles and / or openings may be the same as or different from the number of washing nozzles and / or openings. While embodiments herein show an assembly with two washing arms and two rinsing arms, it should be understood that the number of arms may vary without departing from the scope of this subject matter. In various embodiments, the number of washing arms will differ from the number of rinsing arms. In various implementation schemes, different washing and rinsing arm assemblies may be used, including but not limited to 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 washing and rinsing arm assemblies.

[0037] In various embodiments, the wash and rinse arm assembly rotates under pressure to spray wash and rinse water onto dishes or other appliances in the dishwasher. The direction of rotation may be determined by the angle and / or positioning of the nozzles on the wash arm to generate rotational force on the wash and rinse arm assembly. In various embodiments, the upper and lower hubs are designed to allow the arm assembly to rotate while delivering wash or rinse water. In various embodiments, the wash and rinse arm assembly is designed to rotate in opposite directions under pressure. In various embodiments, the wash and rinse arm assembly is designed to rotate in the same direction under pressure. In various embodiments, the relative rotation rates are different to randomize the application of wash and rinse water. In various embodiments, the relative rotation rates are similar. Other variations are possible without departing from the scope of this subject matter.

[0038] Figure 8B and Figure 8C It shows Figure 8ASide view of the washing and rinsing system 1000. Various mounting brackets and supports can be used to position the washing and rinsing components and their parts to a dishwasher or other appliance using the system.

[0039] Figure 9A A perspective view of the lower washing and rinsing arm assembly and the lower hub 1003 according to one embodiment of this subject matter is shown. Figure 9B An exploded view of a lower hub 1003 according to one embodiment of this subject matter is shown. A shaft arm 1020 is pressed through a plastic or Teflon bearing 1022, which connects the arm hub 1030 to the lower hub 1040 via threads on the bottom of the shaft arm 1020. A plastic or Teflon bearing 1024 is pressed onto the arm hub 1030. The plastic or Teflon bearings 1022 and 1024 allow the arm hub 1030 and its connected washing arms 1005 and rinsing arms 1006 to rotate when water pressure is applied. In various embodiments, the spray arms 1005 and 1006 include end caps 1014 that can be removed for cleaning or other maintenance. Figure 9C An example of a washing arm and a rinsing arm connected to a hub 1030 according to one embodiment of this subject matter is shown.

[0040] arm hub 1030 in Figures 11A to 11F The image shows the details in more detail. The hub 1030 has rinse arm holes 1035 connected to the rinse arm 1006. Rinse water from the rinse openings 1034 is supplied to these rinse arm holes 1035. The hub 1030 also has a plurality of wash openings 1032 that receive pressurized wash water and distribute the pressurized wash water to wash arm holes 1033 connected to the wash arm 1005. This configuration allows for independent wash water channels and rinse water channels within the hub 1030.

[0041] An example of the 1020 shaft arm is in Figures 10A to 10D The diagram is shown in more detail below. In this embodiment, the shaft arm 1020 has a central opening 1023 and a plurality of outlet holes 1021, which allow pressurized rinse water entering the central opening 1023 to pass through via... Figures 11A to 11F The rinsing opening 1034 and rinsing arm hole 1035 of the arm hub 1030 shown are distributed to various rinsing arms 1006.

[0042] Pressurized washing water enters the washing opening 1032 and exits the washing arm hole 1033 of the arm hub 1030 so that it can be sprayed by the washing arm 1005.

[0043] Figures 12A to 12DAn example of a lower hub 1040 is shown, which receives rinse water from rinse input 1032 and exits from rinse output 1042 to the central opening 1023 of shaft arm 1020. The lower hub 1040 also receives pressurized wash water from wash input 1044 (see [link to image]). Figure 12C The pressurized wash water is distributed to the wash outlet 1043 and the wash pipe outlet 1028. The wash water from the wash outlet 1043 is distributed to the wash arm hole 1033 and the wash arm 1005 of the lower hub assembly. The wash water from the wash pipe outlet 1028 is sent to the upper hub assembly 1002 via the wash pipe 1008, so that the upper wash arm 1005 can spray wash water onto the dishes and other appliances in the dishwasher. Figure 12C An internal conduit between rinse input 1032 and rinse output 1042 is shown. Other connections are possible without departing from the scope of this subject matter.

[0044] Figures 13A to 13D An example of an upper hub 1050 is shown, which receives washing fluid from the washing pipe 1008 at the washing inlet 1058 and sends washing water to the washing arm 1005 via a second arm hub 1030 having a washing outlet 1033. The upper hub 1050 also receives rinsing water from the rinsing inlet 1012 at the rinsing inlet 1052, as... Figure 8A As shown. Rinse water entering rinsing input 1052 exits the upper rinsing arm 1006 via rinsing output 1062 and reaches the central opening 1023 of the shaft arm 1020 of the upper hub assembly. In various embodiments, the same or substantially the same shaft arm and arm hub can be used in both the upper and lower hub assemblies. Other designs may be employed without departing from the scope of this subject matter.

[0045] Electrical and Control Systems

[0046] Figure 6 An example of an implementation scheme based on this topic is shown. Figure 1 A block diagram of an example dishwasher 100. Dishwasher 100 may include a controller 800, and the controller 800 may include processing circuitry, such as a processor. The controller 800 may control one or more functions of the dishwasher 100. For example, the controller 800 may communicate with a pump 810 (e.g., a diaphragm pump). When pump 810 is operated, pump 810 may supply cleaning products (e.g., detergent, solvent, bleach, soap, etc.) to the washing chamber 110 (e.g., as shown in the image). Figure 1 (As shown). For example, pump 810 can draw cleaning product from reservoir 820 (e.g., container, jug, chamber, vessel, etc.). Pump 810 can supply cleaning product, for example, at discharge port 815. Cleaning product can include liquid, gas, or a combination thereof.

[0047] One or more electrical properties can vary depending on whether pump 810 is pumping fluid (or the fluid being pumped). For example, when pump 810 is pumping liquid, the current consumed by pump 810 may increase. When pump 810 is not pumping liquid, the current consumed by pump 810 may decrease. For example, when pump 810 is pumping gas, the current consumed by pump 810 may decrease (compared to the current consumed by pump 810 when pumping liquid). When pump 810 is not pumping fluid (e.g., the fluid path between reservoir 820 and pump 810 is blocked), the current consumed by pump 810 may increase. Therefore, controller 800 can monitor the electrical characteristics of pump 810, for example, to determine whether pump 810 is pumping fluid (or the fluid being pumped).

[0048] The controller 800 can monitor one or more electrical properties of the pump 810. For example, the controller 800 can communicate with an electrical characteristic sensor 830, and the electrical characteristic sensor facilitates the monitoring of one or more electrical properties of the pump 810. In one example, a power supply 840 provides power to the pump 810. The sensor 830 can measure one or more of the current consumed by the pump 810 or the voltage supplied to the pump 810. The controller 800 can communicate with the sensor 830, and the controller 800 can monitor (e.g., record, analyze, interpret, etc.) the measurements provided by the sensor 830.

[0049] In one example, the electrical characteristic sensor 830 includes a resistor (e.g., a shunt resistor, etc.). The resistor 800 may be positioned in electrical communication with the pump (e.g., positioned on a line with the power supply 840). The controller 800 may monitor the voltage potential across the resistor. The controller 800 may determine the voltage consumption of the pump 810, for example, based on the monitored voltage potential across the resistor. The controller 800 (or sensor 830) may include amplifiers, signal processing circuitry, etc., to facilitate monitoring of the electrical characteristics of the pump 810 using the controller 800.

[0050] Controller 800 can determine whether fluid is flowing through pump 810 during operation of pump 810. In one example, controller 800 determines a fluid flow rate metric for pump 810. The fluid flow rate metric can indicate the flow rate of fluid through pump 810. Controller 800 can determine the fluid flow rate metric based on monitored electrical characteristics of pump 810. Controller 800 can update the fluid flow rate metric based on a comparison of the electrical characteristics of pump 810 with characteristic thresholds. For example, the fluid flow rate metric may have a first value when pump 810 is pumping gas. The fluid flow rate metric may have a second value when pump 810 is pumping liquid. The fluid flow rate metric may have a third value when pump 810 is not pumping fluid.

[0051] In one example, controller 800 can compare the electrical characteristics of pump 810 with characteristic thresholds (e.g., maximum, minimum, limit, rate of change, etc.). Determining whether pump 810 is pumping fluid can facilitate determining whether reservoir 820 is depleted (e.g., low, drained, empty, drained, etc.). Determining whether pump 810 is pumping fluid can facilitate determining whether pump 810 is blocked (or whether there is a blockage in the fluid line used by pump 810).

[0052] Figure 7 A block diagram illustrating an example machine 900 according to one embodiment of this subject matter is shown, on which any one or more of the techniques (e.g., methods) discussed herein can be performed. Machine 900 may include a controller 800 (in... Figure 6 (As shown in the diagram). As described herein, examples may include, or operate through, logic or multiple components or mechanisms within machine 900. A circuit (e.g., a processing circuit) is a collection of circuits implemented in a tangible entity of machine 900 that includes hardware (e.g., simple circuits, gates, logic, etc.). Circuit membership may be flexible over time. A circuit includes members that can perform a specified operation individually or in combination during operation. In the example, the hardware of the circuit may be permanently designed to perform a specific operation (e.g., hardwired). In one example, the hardware of the circuit may include physically connected components (e.g., execution units, transistors, simple circuits, etc.) including physically modified machine-readable media (e.g., the magnetic or electrically movable placement of aggregated particles with invariable mass) to encode instructions for a specific operation. When the physical components are connected, the fundamental electrical properties of the hardware components change, for example, from an insulator to a conductor, and vice versa. Instructions enable embedded hardware (e.g., execution units or loading mechanisms) to create members of the circuit in the hardware through variable connections to perform a specific operation during operation. Therefore, in one example, a machine-readable medium element is either part of a circuit or another component communicatively connected to the circuit during device operation. In this example, any physical component can be used in more than one member of more than one circuit. For example, in operation, an execution unit may be used at one point in time in a first circuit of a first circuit system and reused at different times by a second circuit in the first circuit system or by a third circuit in the second circuit system. Additional examples of these components with respect to machine 900 are as follows.

[0053] In an alternative implementation, machine 900 may operate as a standalone device or be connected (e.g., networked) to other machines. In a networked deployment, machine 900 may operate as a server machine, a client machine, or both in a client-server network environment. In the example, machine 900 may act as a peer machine in a peer-to-peer (P2P) (or other distributed) network environment. Machine 900 may be a personal computer (PC), tablet PC, set-top box (STB), personal digital assistant (PDA), mobile phone, network device, network router, switch, or bridge, or any machine capable of executing instructions (sequentially or otherwise) that specify the actions the machine should take. Furthermore, although only a single machine is illustrated, the term "machine" should also be understood to include any collection of machines that individually or collectively execute a set (or more) of instructions to perform any or more methods discussed herein, such as cloud-based computing, Software as a Service (SaaS), other computer cluster configurations, etc.

[0054] Machine (e.g., computer system) 900 may include hardware processor 902 (e.g., central processing unit (CPU), graphics processing unit (GPU), hardware processor core, or any combination thereof), main memory 904, static memory (e.g., memory or storage device for firmware, microcode, basic input / output (BIOS), unified extensible firmware interface (UEFI), etc.) 906, and mass storage device 908 (e.g., hard disk drive, tape drive, flash memory device, or other block device), some or all of which may communicate with each other via interconnect (e.g., bus) 930. Machine 900 may also include display unit 910, alphanumeric input device 912 (e.g., keyboard), and user interface (UI) navigation device 914 (e.g., mouse). In one example, display unit 910, input device 912, and UI navigation device 914 may be a touchscreen display. Machine 900 may also include a storage device (e.g., a drive unit) 908, a signal generation device 918 (e.g., a speaker), a network interface device 920, and one or more sensors 916, such as a Global Positioning System (GPS) sensor, a compass, an accelerometer, or other sensors. Machine 900 may include an output controller 928, for example, a serial (e.g., Universal Serial Bus (USB), parallel, or other wired or wireless (e.g., infrared (IR), near field communication (NFC), etc.) connection for communicating with or controlling one or more peripheral devices (e.g., a printer, a card reader, etc.).

[0055] The registers of processor 902, main memory 904, static memory 906, or mass storage device 908 may be or include machine-readable medium 922, on which one or more sets of data structures or instructions 924 (e.g., software) embodying or utilized by any one or more technologies or functions described herein are stored. During execution of instructions 924 by machine 900, these instructions may also reside wholly or at least partially within any register of processor 902, main memory 904, static memory 906, or mass storage device 908. In one example, one or any combination of hardware processor 902, main memory 904, static memory 906, or mass storage device 908 may constitute machine-readable medium 922. While machine-readable medium 922 is exemplified as a single medium, the term "machine-readable medium" may include a single medium or multiple media (e.g., a centralized or distributed database and / or associated caches and servers) configured to store one or more instructions 924.

[0056] The term "machine-readable medium" can include any medium capable of storing, encoding, or carrying instructions for execution by machine 900 and causing machine 900 to perform any one or more technologies of this disclosure, or capable of storing, encoding, or carrying data structures used or associated with such instructions. Examples of non-limiting machine-readable media can include solid-state memory, optical media, magnetic media, and signals (e.g., radio frequency signals, other photon-based signals, sound signals, etc.). In one example, a non-transitory machine-readable medium includes a machine-readable medium having a plurality of massless (e.g., stationary) particles, and thus is a composition of matter. Therefore, a non-transitory machine-readable medium is a machine-readable medium that does not include transiently propagating signals. Specific examples of non-transitory machine-readable media can include: non-volatile memory, such as semiconductor storage devices (e.g., electrically programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM)) and flash memory devices; disks, such as internal hard disks and removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks.

[0057] Instruction 924 can be further sent or received via communication network 926, which is performed via network interface device 920 using a transmission medium employing any of a variety of transmission protocols (e.g., Frame Relay, Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Hypertext Transfer Protocol (HTTP), etc.). Example communication networks may include local area networks (LANs), wide area networks (WANs), packet data networks (e.g., the Internet), mobile phone networks (e.g., cellular networks), conventional telephone (POTS) networks, and wireless data networks (e.g., known as Wi-Fi). ®The Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard series is known as WiMax. ® The IEEE 802.16 series of standards, the IEEE 802.15.4 series of standards, point-to-point (P2P) networks, etc. In one example, network interface device 920 may include one or more physical jacks (e.g., Ethernet, coaxial, or telephone jacks) or one or more antennas to connect to communication network 926. In one example, network interface device 920 may include multiple antennas to perform wireless communication using at least one of single-input multiple-output (SIMO), multiple-input multiple-output (MIMO), or multiple-input single-output (MISO) technologies. The term "transmission medium" should be considered to include any intangible medium capable of storing, encoding, or carrying instructions executable by machine 900, and includes digital or analog communication signals or other intangible media to facilitate communication of such software. The transmission medium is a machine-readable medium.

[0058] Example

[0059] Example 1 is a dishwasher for washing dishes, comprising: a single washing and rinsing arm assembly including a first set of nozzles and a second set of nozzles, the first set of nozzles being configured to wash the dishes with washing water and the second set of nozzles being configured to rinse the dishes with rinsing water; and a hub including a first channel and a second channel, the first channel being used to supply washing water to the first set of nozzles of the arm assembly and the second channel being used to supply rinsing water to the second set of nozzles of the arm assembly, wherein the arm assembly rotates on the hub to spray washing water and rinsing water onto the dishes in the machine.

[0060] Example 2 is a dual-hub washing and rinsing assembly as described in Example 1.

[0061] In this document, as is common in patent documents, the terms “a” or “an” are used to include one or more, independent of any other examples or usages of “at least one” or “one or more”. In the appended claims, the terms “first,” “second,” and “third,” etc., are used merely as labels and are not intended to impose numerical requirements on their objects.

[0062] The above description is for illustrative purposes only and not for limitation. For example, the examples described above (or one or more examples thereof) can be used in combination with each other. Other embodiments can be used, such as those that can be used by those skilled in the art after reviewing the above description.

Claims

1. A dishwasher for washing dishes in a machine, comprising: A single washing and rinsing arm assembly, the single washing and rinsing arm assembly including a first set of nozzles and a second set of nozzles, the first set of nozzles being configured to wash the tableware with washing water and the second set of nozzles being configured to rinse the tableware with rinsing water. and The hub includes a first channel and a second channel, the first channel being used to supply washing water to the first set of nozzles of the arm assembly, and the second channel being used to supply rinsing water to the second set of nozzles of the arm assembly. The arm assembly rotates on the hub to spray washing and rinsing water onto the tableware in the machine.

2. The dishwasher of claim 1, wherein the hub includes a fixed hub that receives input from two separate liquid sources and directs the flow to the attached wash / rinse arms.

3. The dishwasher of claim 1, wherein the washing and rinsing arm assembly comprises a dual-hub system having separate channels for washing water and rinsing water.

4. The dishwasher according to claim 3, wherein the dual-hub system comprises an upper hub and a lower hub, the upper hub and the lower hub distributing washing water and rinsing water to corresponding upper washing arms and rinsing arms and lower washing arms and rinsing arms.

5. The dishwasher according to any one of the preceding claims, wherein the washing and rinsing arm assembly is configured to rotate based on the propulsive force of water passing through nozzles located on the washing arm and the rinsing arm.

6. The dishwasher according to any one of the preceding claims further includes a water tank and a pump system configured to recirculate liquid within the dishwasher, wherein the water tank includes a collection tray and a collection well configured to collect liquid from the collection tray.

7. The dishwasher of claim 6, wherein the water collection tray includes an inclined wall for facilitating liquid discharge into the water collection well.

8. The dishwasher according to any one of the preceding claims further includes a service compartment housing components including at least a pump and a reservoir, wherein the components within the service compartment are movably connected for access for maintenance.

9. The dishwasher according to any one of the preceding claims, wherein the nozzles on the washing arm are larger than the nozzles on the rinsing arm to provide a larger volumetric flow rate of washing solution.

10. The dishwasher according to any one of claims 3 to 9, wherein the washing and rinsing arm assembly is configured to rotate in opposite directions when pressurized.

11. The dishwasher of claim 10, wherein the washing and rinsing arm assemblies are configured to rotate at different relative rates to randomize the application of washing water and rinsing water.

12. The dishwasher according to any one of the preceding claims further includes a controller configured to control the operation of the dishwasher, including the timing and duration of washing and rinsing cycles, wherein the controller is configured to monitor the electrical characteristics of the pump to determine fluid flow characteristics.

13. The dishwasher according to any one of the preceding claims, wherein the dishwasher includes a plurality of sensors configured to optimize the washing and rinsing process based on load size and degree of soiling.

14. A method of operating a dishwasher, comprising: Washing water is supplied to the first set of nozzles of the washing and rinsing arm assembly; Rinse water is supplied to the second set of nozzles of the washing and rinsing arm assembly; And to rotate the arm assembly on the hub to spray washing water and rinsing water onto the tableware in the machine.

15. The method of claim 14, further comprising controlling the rotation of the washing and rinsing arm assembly to rotate in opposite directions when pressurized.

16. The method of claim 14, further comprising using a controller to monitor the electrical characteristics of the pump to determine fluid flow characteristics.

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