# US 10,767,867 B2 · Bearing support assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,867 B2 - Document ID: US10767867B2 - Status: Granted - Kind: B2 - Application number: 15/927,285 - Filed: 2018-03-21 - Published: 2019-09-26 - Granted: 2020-09-08 - Earliest claimed: 2018-03-21 - Assignees: Raytheon Technologies Corporation - Applicants: United Technologies Corporation - Inventors: Todd A. Davis; Christopher M. Valva; Daniel Rosen; Armando Amador; Aneil S. Hegde; Ramin M. Rafatpanah - Web page: https://patentgrep.com/patent/US10767867B2 ## CPC - F23R 3/60: Support structures; Attaching or mounting means - F01D 9/065: {Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids (see also F01D25/16, F01D25/24 and F01D25/26)} - F01D 11/003: {by packing rings; Mechanical seals} - F01D 25/162: {Bearing supports} - F01D 25/164: {Flexible supports; Vibration damping means associated with the bearing} - F02C 7/28: Arrangement of seals - F23R 3/002: {Wall structures (F23R3/02 and F23R3/007 take precedence)} - F05D 2240/58: Piston ring seals - F23R 2900/00012: Details of sealing devices - F23R: GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C10/16) - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A bearing support may include a central shaft, a flange shaft, and a tube boss. The central shaft may include a central longitudinal axis extending between a first end and a second end of the bearing support. The flange shaft may extend radially outward of the central shaft at an acute angle, relative to the central longitudinal axis from the first end to the second end, and the flange shaft may include a rim defining an aperture. The tube boss extends from the central shaft radially outward through the aperture, according to various embodiments. An annular channel may be between the rim and the tube boss. ## Claims ### Claim 1 A bearing support comprising: a central shaft comprising a central longitudinal axis extending between a first end and a second end of the bearing support; a flange shaft extending radially outward of the central shaft at an acute angle, relative to the central longitudinal axis from the first end to the second end, wherein the flange shaft comprises a rim defining an aperture; and a tube boss extending from the central shaft radially outward through the aperture, wherein an annular channel is defined between the rim and the tube boss; wherein: the rim comprises a first side disposed toward and facing the first end of the bearing support; the rim comprises a second side disposed toward and facing the second end of the bearing support; the first side of the rim extends directly from the central shaft via a connector segment; and the second side of the rim is floating relative to the central shaft such that a gap is defined between the second side and the central shaft. ### Claim 2 (depends on 1) The bearing support of claim 1, wherein the central shaft and the flange shaft together form a unitary, integral structure. ### Claim 3 (depends on 1) The bearing support of claim 1, wherein the tube boss comprises a centerline axis, wherein the tube boss and the annular channel are concentric about the centerline axis. ### Claim 4 (depends on 1) The bearing support of claim 1, wherein the tube boss is a first tube boss, wherein the rim is a second tube boss. ### Claim 5 (depends on 4) The bearing support of claim 4, wherein: the second tube boss comprises the first side facing the first end of the bearing support; the second tube boss comprises the second side facing the second end of the bearing support; the first side of the second tube boss extends from the central shaft; and the second side of the second tube boss is floating relative to the central shaft. ### Claim 6 (depends on 1) The bearing support of claim 1, wherein the gap enables radial deflection of the flange shaft in response to load on the bearing support. ### Claim 7 (depends on 1) The bearing support of claim 1, wherein: a first cavity is defined within the central shaft; a second cavity is defined between the central shaft and the flange shaft; and a third cavity is defined radially outward of the flange shaft. ### Claim 8 (depends on 7) The bearing support of claim 7, wherein the tube boss is configured to fluidly connect the first cavity to the third cavity. ### Claim 9 (depends on 8) The bearing support of claim 8, wherein the annular channel is open to and extends between the second cavity and the third cavity. ### Claim 10 (depends on 9) The bearing support of claim 9, wherein an annular sealing member is configured to be disposed within the annular channel to fluidly separate the second cavity from the third cavity. ### Claim 11 A gas turbine engine comprising: a bearing support comprising: a central shaft extending around and along an engine central longitudinal axis of the gas turbine engine, wherein the bearing support comprises a first end and a second end; a flange shaft extending radially outward of the central shaft at an acute angle, relative to the engine central longitudinal axis from the first end to the second end, wherein the flange shaft comprises a rim defining an aperture; and a tube boss extending from the central shaft radially outward through the aperture, wherein an annular channel is defined between the rim and the tube boss; and an annular sealing member disposed within the annular channel; wherein one side of the rim is directly connected to the central shaft and an opposing side of the rim is floating relative to the central shaft such that a gap is defined between the opposing side and the central shaft. ### Claim 12 (depends on 11) The gas turbine engine of claim 11, wherein the annular sealing member comprises a sleeve and a piston ring. ### Claim 13 (depends on 11) The bearing support of claim 11, wherein: a first cavity is defined within the central shaft; a second cavity is defined between the central shaft and the flange shaft; a third cavity is defined radially outward of the flange shaft; the tube boss is configured to fluidly connect the first cavity to the third cavity; and the annular sealing member is configured to fluidly separate the second cavity from the third cavity. ### Claim 14 (depends on 11) The gas turbine engine of claim 11, wherein the tube boss comprises a centerline axis, wherein the tube boss and the annular channel are concentric about the centerline axis. ### Claim 15 (depends on 14) The gas turbine engine of claim 14, wherein the tube boss is a first tube boss, wherein the rim is a second tube boss. ### Claim 16 (depends on 15) The gas turbine engine of claim 15, wherein: the second tube boss comprises the one side facing the first end of the bearing support; and the second tube boss comprises the opposing side facing the second end of the bearing support. ### Claim 17 (depends on 16) The gas turbine engine of claim 16, wherein the central shaft and the flange shaft together form a unitary, integral structure.