# US 9,752,583 B2 · Pump assembly for appliance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,583 B2 - Document ID: US9752583B2 - Status: Granted - Kind: B2 - Application number: 14/507,887 - Filed: 2014-10-07 - Published: 2016-04-07 - Granted: 2017-09-05 - Earliest claimed: 2014-10-07 - Assignees: Haier US Appliance Solutions, Inc. - Applicants: General Electric Company - Inventors: Hanping Xu - Web page: https://patentgrep.com/patent/US9752583B2 ## CPC - F04D 13/0693: {Details or arrangements of the wiring} - A47L 15/4225: {Arrangements or adaption of recirculation or discharge pumps} - F04D 13/086: {the pump and drive motor are both submerged} - F04D 29/086: {especially adapted for liquid pumps} - F04D 1/00: Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (adapted for pumping specific fluids F04D7/00; priming or boosting F04D9/00) - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract Appliances, such as dishwasher appliances, and pump assemblies for appliances are provided. A pump assembly includes a conduit, the conduit including a casing extending between an inlet and an outlet and defining an inner passage between the inlet and the outlet. The pump assembly further includes an impeller disposed within the inner passage, and a motor connected to the impeller and operable to rotate the impeller, the motor disposed within the inner passage. Fluid flowing within the inner passage is flowable past the motor. ## Claims ### Claim 1 A pump assembly for an appliance, the pump assembly comprising: a conduit, the conduit comprising a casing extending between an inlet and an outlet and defining an inner passage, the inner passage providing fluid communication between the inlet and the outlet; an impeller disposed within the inner passage; and a motor connected to the impeller and operable to rotate the impeller, the motor disposed within the inner passage, wherein fluid flowing within the inner passage is flowable around and past the motor. ### Claim 2 (depends on 1) The pump assembly of claim 1, wherein the motor comprises an outer casing and the outer casing is hermetically sealed. ### Claim 3 (depends on 1) The pump assembly of claim 1, further comprising a shaft and a shaft seal, the shaft connecting the impeller and the motor, the shaft seal disposed between the shaft and an outer casing of the motor. ### Claim 4 (depends on 2) The pump assembly of claim 2, further comprising an electrical wire assembly, a first wire seal and a second wire seal, the electrical wire assembly connected to the motor and extending through the outer casing of the motor and through the casing of the conduit, the first wire seal disposed between the electrical wire assembly and the casing of the conduit, the second wire seal disposed between the electrical wire assembly and the outer casing of the motor. ### Claim 5 (depends on 1) The pump assembly of claim 1, wherein the outlet is generally coaxial with the inlet along a longitudinal axis of the conduit. ### Claim 6 (depends on 1) The pump assembly of claim 1, wherein the conduit is a drain pipe. ### Claim 7 An appliance, comprising: a fluid source; a pump assembly in fluid communication with the fluid source for flowing fluid from the fluid source, the pump assembly comprising: a conduit, the conduit comprising a casing extending between an inlet and an outlet and defining an inner passage, the inner passage providing fluid communication between the inlet and the outlet; an impeller disposed within the inner passage; and a motor connected to the impeller and operable to rotate the impeller, the motor disposed within the inner passage, wherein fluid flowing within the inner passage is flowable around and past the motor. ### Claim 8 (depends on 7) The appliance of claim 7, wherein the motor comprises an outer casing and the outer casing is hermetically sealed. ### Claim 9 (depends on 7) The appliance of claim 7, further comprising a shaft and a shaft seal, the shaft connecting the impeller and the motor, the shaft seal disposed between the shaft and an outer casing of the motor. ### Claim 10 (depends on 9) The appliance of claim 9, further comprising an electrical wire assembly, a first wire seal and a second wire seal, the electrical wire assembly connected to the motor and extending through the outer casing of the motor and through the casing of the conduit, the first wire seal disposed between the electrical wire assembly and the casing of the conduit, the second wire seal disposed between the electrical wire assembly and the outer casing of the motor. ### Claim 11 (depends on 7) The appliance of claim 7, wherein the outlet is generally coaxial with the inlet along a longitudinal axis of the conduit. ### Claim 12 A dishwasher appliance, comprising: a tub that defines a wash chamber for receipt of articles for washing; a sump for collecting fluid from the wash chamber; and a pump assembly in fluid communication with the sump for flowing fluid from the sump, the pump assembly comprising: a conduit, the conduit comprising a casing extending between an inlet and an outlet and defining an inner passage, the inner passage providing fluid communication between the inlet and the outlet; an impeller disposed within the inner passage; and a motor connected to the impeller and operable to rotate the impeller, the motor disposed within the inner passage, wherein fluid flowing within the inner passage is flowable around and past the motor. ### Claim 13 (depends on 12) The dishwasher appliance of claim 12, wherein the motor is hermetically sealed. ### Claim 14 (depends on 12) The dishwasher appliance of claim 12, further comprising a shaft and a shaft seal, the shaft connecting the impeller and the motor, the shaft seal disposed between the shaft and an outer casing of the motor. ### Claim 15 (depends on 12) The dishwasher appliance of claim 12, further comprising an electrical wire assembly, a first wire seal and a second wire seal, the electrical wire assembly connected to the motor and extending through the outer casing of the motor and through the casing of the conduit, the first wire seal disposed between the electrical wire assembly and the casing of the conduit, the second wire seal disposed between the electrical wire assembly and the outer casing of the motor. ### Claim 16 (depends on 12) The dishwasher appliance of claim 12, wherein the outlet is generally coaxial with the inlet along a longitudinal axis of the conduit. ### Claim 17 (depends on 12) The dishwasher appliance of claim 12, wherein the conduit is a drain pipe.