# US 2018/0320702 A1 · Bearing and method of making and using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320702 A1 - Document ID: US20180320702A1 - Status: Published application - Kind: A1 - Application number: 15/587,874 - Filed: 2017-05-05 - Published: 2018-11-08 - Earliest claimed: 2017-05-05 - Assignees: BorgWarner Inc. - Applicants: BorgWarner Inc. - Inventors: Jonathan Williams - Web page: https://patentgrep.com/patent/US20180320702A1 ## CPC - F04D 29/057: hydrostatic; hydrodynamic - F01D 5/04: for radial-flow machines or engines - F01D 25/16: Arrangement of bearings; Supporting or mounting bearings in casings (bearings per se F16C) - F01D 25/166: {Sliding contact bearing (gas bearings F01D25/22)} - F01D 25/18: Lubricating arrangements (of machines or engines in general F01M) - F04D 17/10: for compressing or evacuating - F04D 29/053: Shafts - F04D 29/063: specially adapted for elastic fluid pumps - F04D 29/284: {for compressors} - F04D 29/584: {cooling or heating the machine (F04D29/5846, F04D29/5853 take precedence)} - F05D 2220/40: in turbochargers - F05D 2230/00: Manufacture - F05D 2240/53: Hydrodynamic or hydrostatic bearings - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A number of variations may include a product including a rotor comprising a shaft having a rotation axis, a bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing about the rotation axis, and a bearing housing comprising at least one fluid outlet passage constructed and arranged to flow fluid upward from the bearing to a top side of the bearing housing. ## Claims ### Claim 1 A product comprising: a rotor comprising a shaft having a rotation axis, a bearing comprising a rolling element bearing, the bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing about the rotation axis, and a bearing housing comprising a top portion and a bottom portion, wherein the top portion comprises at least one fluid outlet passage and at least one housing bore, and wherein the housing bore is constructed and arranged to accept fluid from the at least one fluid outlet passage and wherein the at least one fluid outlet passage is constructed and arranged to flow fluid upward from the bearing to the top portion of the bearing housing; and wherein the product is a turbocharger and wherein the shaft comprises a compressor end comprising a compressor wheel, and a turbine end comprising a turbine wheel. ### Claim 2 (depends on 1) The product as set forth in claim 1 wherein the bearing housing further comprises a pressurized volume that is constructed and arranged to flow fluid upward to the top portion of the housing through the at least one fluid outlet passage. ### Claim 3 (canceled) ### Claim 4 (canceled) ### Claim 5 (canceled) ### Claim 6 (depends on 1) The product as set forth in claim 1 wherein the bearing comprises at least one journal bearing. ### Claim 7 (depends on 1) The product as set forth in claim 1 wherein the bearing housing further comprises a fluid drain. ### Claim 8 (depends on 1) The product as set forth in claim 1 wherein the bearing housing further comprises a fluid inlet. ### Claim 9 (depends on 8) The product as set forth in claim 8 wherein the bearing housing comprises at least one fluid inlet passage constructed and arranged to provide fluid to the bearing from the fluid inlet. ### Claim 10 (depends on 1) The product of claim 1 wherein the at least one housing bore provides fluid to a fluid drain. ### Claim 11 A method comprising: providing a product comprising a rotor comprising a shaft having a rotation axis, a bearing comprising a rolling element bearing, the bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing about the rotation axis, and a bearing housing comprising at least one housing bore defined by an inner surface of a top side of the bearing housing and at least one fluid outlet passage in operative communication with the at least one housing bore constructed and arranged to flow fluid upward from the bearing to the at least one housing bore; flowing fluid through the at least one fluid outlet passage upward from the bearing to the top side of the bearing housing while the shaft is in rotation; and wherein the product is a turbocharger and wherein the shaft comprises a compressor end comprising a compressor wheel, and a turbine end comprising a turbine wheel. ### Claim 12 (depends on 11) The method as set forth in claim 11 wherein the bearing housing further comprises a pressurized volume that is constructed and arranged to flow fluid upward to the top side of the housing through the at least one fluid outlet passage. ### Claim 13 (canceled) ### Claim 14 (canceled) ### Claim 15 (canceled) ### Claim 16 (depends on 11) The method as set forth in claim 11 wherein the bearing comprises at least one journal bearing. ### Claim 17 (depends on 11) The method as set forth in claim 11 wherein the bearing housing further comprises a fluid drain. ### Claim 18 (depends on 11) The method as set forth in claim 11 wherein the bearing housing further comprises a fluid inlet. ### Claim 19 (depends on 18) The method as set forth in claim 18 wherein the bearing housing comprises at least one fluid inlet passage constructed and arranged to provide fluid to the bearing from the fluid inlet. ### Claim 20 (depends on 11) The method of claim 11 wherein the at least one housing bore provides fluid to a fluid drain. ### Claim 21 A turbocharger comprising: a rotor comprising a shaft having an axis of rotation; a turbine wheel attached to a first end of the shaft and a compressor wheel attached to a second end of the shaft; a bearing at least partially surrounding the shaft constructed and arranged to allow for rotation of the shaft within the bearing about the axis of rotation; a bearing housing surrounding at least a portion of the bearing, wherein the bearing housing comprises a compressor side and a turbine side; a fluid delivery system comprising a fluid inlet, a longitudinal passageway, at least one fluid inlet passage in operative communication with the longitudinal passageway constructed and arranged to deliver fluid to at least one of the bearing or the shaft, at least one bore defined by an inner surface of the bearing housing which extends through a top portion of the bearing housing, at least one fluid outlet passage in operative communication with the at least one bore; and wherein the at least one bore is constructed and arranged to accept fluid from the at least one fluid outlet passage and wherein the at least one fluid outlet passage is constructed and arranged to flow fluid upward from the bearing to the top portion of the bearing housing. ### Claim 22 (depends on 21) The turbocharger as set forth in claim 21 wherein the at least one bore is disposed along the axis of rotation. ### Claim 23 (depends on 1) The product as set forth in claim 1 wherein the at least one housing bore is disposed along the rotation axis. ### Claim 24 (depends on 11) The method as set forth in claim 11 wherein the at least one housing bore is disposed along the rotation axis.