# US 2018/0320704 A1 · Removable integrated wear ring impeller skirt > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320704 A1 - Document ID: US20180320704A1 - Status: Published application - Kind: A1 - Application number: 15/968,196 - Filed: 2018-05-01 - Published: 2018-11-08 - Earliest claimed: 2017-05-01 - Assignees: Fluid Handling LLC - Applicants: Fluid Handling LLC - Inventors: Christopher Stephen JOHNSON; Marcos Daniel ROIMICHER; Patrycja Delcourt - Web page: https://patentgrep.com/patent/US20180320704A1 ## CPC - F04D 29/2294: {for protection, e.g. against abrasion} - F04D 1/006: {double suction pumps} - F04D 29/167: {of a centrifugal flow wheel} - F04D 29/628: {especially adapted for liquid pumps} - F05D 2230/80: Repairing, retrofitting or upgrading methods - F05D 2250/51: Inlet - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A double suction impeller features an impeller main body and an impeller suction eye. The impeller main body may include a suction eye adapter coupling member. The impeller suction eye may include a removable suction eye adapter having a corresponding suction eye adapter coupling member configured to couple detachably to the suction eye adapter coupling member of the impeller main body, whereby the removable suction eye adapter can be removed and replaced when wear and erosion occurs and can be a separate cast and/or machined piece. ## Claims ### Claim 1 A double suction impeller comprising: an impeller main body having a suction eye adapter coupling member; and an impeller suction eye having a removable suction eye adapter with a corresponding suction eye adapter coupling member configured to couple detachably to the suction eye adapter coupling member of the impeller main body, whereby the removable suction eye adapter can be removed and replaced when wear and erosion occurs and can be a separate cast and/or machined piece. ### Claim 2 (depends on 1) A double suction impeller according to claim 1, wherein the double suction impeller comprises a set screw having a threaded end; the suction eye adapter coupling member includes a threaded opening configured to receive the threaded end of the set screw; and the corresponding removable suction eye adapter includes a corresponding opening configured to allow the set screw to pass through and the threaded end to be received by the threaded opening of the suction eye adapter coupling member to couple the removable suction eye adapter to the impeller main body. ### Claim 3 (depends on 2) A double suction impeller according to claim 2, wherein the set screw is configured parallel to the flow of the pump medium. ### Claim 4 (depends on 1) A double suction impeller according to claim 1, wherein the suction eye adapter coupling member and the corresponding suction eye adapter coupling member have mated threaded faces configured to provide a fully threaded attachment between the impeller main body and the removable suction eye adapter. ### Claim 5 (depends on 1) A double suction impeller according to claim 1, wherein the double suction impeller comprises a set screw having a threaded end; the corresponding suction eye adapter coupling member includes a threaded opening configured to receive the threaded end of the set screw; and the suction eye adapter coupling member includes a corresponding opening configured to allow the set screw to pass through and the threaded end to be received by the threaded opening of the corresponding suction eye adapter coupling member to couple the removable suction eye adapter to the impeller main body. ### Claim 6 (depends on 4) A double suction impeller according to claim 4, wherein the set screw is configured normal to the flow of the pump medium. ### Claim 7 (depends on 1) A double suction impeller according to claim 1, wherein the impeller main body includes a second suction eye adapter coupling member; and the double suction impeller comprises: a second impeller suction eye having a second removable suction eye adapter with a second corresponding suction eye adapter coupling member configured to couple detachably to the second suction eye adapter coupling member of the impeller main body, whereby the second removable suction eye adapter can be removed and replaced when wear and erosion occurs and can be a second separate cast and/or machined piece. ### Claim 8 (depends on 7) A double suction impeller according to claim 7, wherein the double suction impeller comprises: a second set screw having a corresponding threaded end; the second suction eye adapter coupling member includes a second threaded opening configured to receive the corresponding threaded end of the second set screw; and the second corresponding suction eye adapter coupling member includes a second corresponding opening configured to allow the second set screw to pass through and the corresponding threaded end to be received by the second threaded opening of the suction eye adapter coupling member to couple the second removable suction eye adapter to the impeller main body. ### Claim 9 (depends on 8) A double suction impeller according to claim 8, wherein the second set screw is configured parallel to the flow of the pump medium. ### Claim 10 (depends on 7) A double suction impeller according to claim 7, wherein the second suction eye adapter coupling member and the second corresponding suction eye adapter coupling member have second mated threaded faces configured to provide a second fully threaded attachment between the impeller main body and the second removable suction eye adapter. ### Claim 11 (depends on 8) A double suction impeller according to claim 8, wherein the double suction impeller comprises a second set screw having a corresponding threaded end; the second corresponding suction eye adapter coupling member includes a second threaded opening configured to receive the corresponding threaded end of the second set screw; and the second suction eye adapter coupling member includes a second corresponding opening configured to allow the second set screw to pass through and the corresponding threaded end to be received by the second threaded opening of the second corresponding suction eye adapter coupling member to couple the second removable suction eye adapter to the impeller main body. ### Claim 12 (depends on 11) A double suction impeller according to claim 11, wherein the second set screw is configured normal to the flow of the pump medium. ### Claim 13 (depends on 1) A double suction impeller according to claim 1, wherein the double suction impeller comprises: a gasket arranged between the suction eye adapter coupling member and the corresponding suction eye adapter coupling member and configured to prevent leakage. ### Claim 14 (depends on 8) A double suction impeller according to claim 8, wherein the double suction impeller comprises: a second gasket arranged between the second suction eye adapter coupling member and the second corresponding suction eye adapter coupling member and configured to prevent leakage. ### Claim 15 (depends on 1) A double suction impeller according to claim 1, wherein the double suction impeller comprises: an O-ring arranged between the suction eye adapter coupling member and the corresponding suction eye adapter coupling member and configured to prevent leakage. ### Claim 16 (depends on 8) A double suction impeller according to claim 8, wherein the double suction impeller comprises: a second O-ring arranged between the second suction eye adapter coupling member and the second corresponding suction eye adapter coupling member and configured to prevent leakage. ### Claim 17 (depends on 8) A double suction impeller according to claim 8, wherein the removable suction eye adapter and the second removable suction eye adapter are configured as symmetrical and interchangeable removable suction eye adapters. ### Claim 18 A pump comprising: a double suction impeller having: an impeller main body having a suction eye adapter coupling member; and an impeller suction eye having a removable suction eye adapter with a corresponding suction eye adapter coupling member configured to couple detachably to the suction eye adapter coupling member of the impeller main body, whereby the removable suction eye adapter can be removed and replaced when wear and erosion occurs and can be a separate cast and/or machined piece. ### Claim 19 (depends on 18) A pump according to claim 18, wherein the pump is a centrifugal pump. ### Claim 20 A suction impeller comprising: an impeller main body having a suction eye adapter coupling member; and an impeller suction eye having a removable suction eye adapter with a corresponding suction eye adapter coupling member configured to couple detachably to the suction eye adapter coupling member of the impeller main body, whereby that the removable suction eye adapter can be removed and replaced when wear and erosion occurs and can be a separate cast and/or machined piece. ### Claim 21 (depends on 20) A suction impeller according to claim 20, where the suction impeller is a double suction impeller.