# US 2013/0156567 A1 · Sheet metal turbine housing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156567 A1 - Document ID: US20130156567A1 - Status: Published application - Kind: A1 - Application number: 13/700,982 - Filed: 2011-12-07 - Published: 2013-06-20 - Earliest claimed: 2010-12-09 - Assignees: Mitsubishi Heavy Industries, Ltd. - Inventors: Satomi Nagae; Daigo Watanabe; Motoki Ebisu; Michio Kyoya; Toru Kikuchi - Web page: https://patentgrep.com/patent/US20130156567A1 ## CPC - F01D 25/24: Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045}) - F01D 9/026: {Scrolls for radial machines or engines} - F02B 37/02: Gas passages between engine outlet and pump drive, e.g. reservoirs - F02B 39/00: Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00 - F05D 2220/40: in turbochargers - F05D 2230/232: by welding - F05D 2230/54: by sheet metal manufacturing - Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The turbine housing 1 is formed by sheet metal scroll members 5 and 7 butted opposite each other and welded together. A center core part 9 arranged in a central part of the scroll part 3 is integrally formed in one piece from a steel pipe member such as to include a housing portion 93 surrounding a turbine wheel 24, a bearing receiving portion 91 axially supporting the turbine wheel 24, and a plurality of circumferentially spaced supports 92 bridging a gap between the housing portion 93 and the bearing receiving portion 91. ## Claims ### Claim at position 1 1-6. (canceled) ### Claim 7 A sheet metal turbine housing mounted downstream of an engine exhaust manifold and having a scroll part made by a sheet metal scroll member to form a spiral exhaust gas passage of a turbocharger that drives a turbine by using exhaust gas, wherein the scroll part is formed by a first scroll part and a second scroll part butted opposite each other and joined together, a center core part in a substantially cylindrical shape disposed in a volute center part of the scroll part includes: a housing portion at one end that surrounds an outer circumference of a turbine wheel via a clearance and that forms a gas discharge port; a bearing receiving portion at the other end in which a bearing axially supporting a rotating shaft of the turbine wheel is fitted; and a plurality of circumferentially spaced supports bridging a gap between the housing portion and the bearing receiving portion in an axial direction of the turbine, and wherein the housing portion, the bearing receiving portion, and the supports are formed integrally in one piece from a steel pipe member in an annular shape. ### Claim 8 (depends on 7) The sheet metal turbine housing according to claim 7, wherein the supports have a cross-sectional shape, as viewed from the axial direction of the turbine, with acute-angled corners both upstream and downstream of a flow of exhaust gas so that the supports have an upstream side face and a downstream side face inclined along the flow of gas. ### Claim 9 (depends on 7) The sheet metal turbine housing according to claim 7, wherein the scroll part has the first sheet metal scroll part fixedly attached to the housing portion at the one end and the second sheet metal scroll part fixedly attached to the bearing receiving portion at the other end, the first scroll part and the second scroll part being joined together by penetration butt welding at an outer circumferential portion of the scroll part. ### Claim 10 (depends on 7) The sheet metal turbine housing according to claim 7, wherein the housing portion surrounding the turbine has a larger sheet thickness in a portion facing an outer circumference of the turbine than in other portions. ### Claim 11 (depends on 10) The sheet metal turbine housing according to claim 10, wherein the portion having the larger sheet thickness is at least a portion facing an outer circumference of a turbine wheel of the turbine. ### Claim 12 (depends on 7) The sheet metal turbine housing according to claim 7, wherein the sheet metal scroll member of the scroll part has a double wall structure. ### Claim 13 (depends on 8) The sheet metal turbine housing according to claim 8, wherein the sheet metal scroll member of the scroll part has a double wall structure. ### Claim 14 (depends on 9) The sheet metal turbine housing according to claim 9, wherein the sheet metal scroll member of the scroll part has a double wall structure. ### Claim 15 (depends on 10) The sheet metal turbine housing according to claim 10, wherein the sheet metal scroll member of the scroll part has a double wall structure. ### Claim 16 (depends on 11) The sheet metal turbine housing according to claim 11, wherein the sheet metal scroll member of the scroll part has a double wall structure.