# US 2018/0023462 A1 · Turbine wastegate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0023462 A1 - Document ID: US20180023462A1 - Status: Published application - Kind: A1 - Application number: 15/218,045 - Filed: 2016-07-24 - Published: 2018-01-25 - Earliest claimed: 2016-07-24 - Assignees: Honeywell International Inc. - Applicants: Honeywell International Inc. - Inventors: Stanislav Hahn; Petr Cizek; Antonin Forbelsky; Filip Tomanec - Web page: https://patentgrep.com/patent/US20180023462A1 ## CPC - F02B 37/186: {Arrangements of actuators or linkage for bypass valves} - F02B 37/183: {Arrangements of bypass valves or actuators therefor} - F16K 1/2007: {specially adapted operating means therefor (operating means per se F16K31/00)} - F16K 31/521: {comprising a pivoted disc or flap} - F16C 33/08: Attachment of brasses, bushes or linings to the bearing housing - F16C 2226/36: by welding - F16C 2360/23: Gas turbine engines - Y02T 10/12: Improving ICE efficiencies - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A turbine housing assembly can include a turbine housing that includes an exterior surface, an interior surface that includes a wastegate seat, and a bore that extends between the interior surface and the exterior surface; a bushing disposed at least partially in the bore where the bushing includes a bushing bore; a wastegate that includes a shaft that extends through the bushing bore to a shaft end, a shaft shoulder disposed in the bushing bore, a plug, and an arm disposed between the shaft and the plug; a ring disposed at least in part in the bushing bore between the shaft shoulder and the shaft end; and a control arm connected to the shaft proximate to the shaft end to define an axial distance between a surface of the control arm and the shaft shoulder where the ring has an axial length that is less than the axial distance. ## Claims ### Claim 1 A turbine housing assembly comprising: a turbine housing that comprises an exterior surface, an interior surface that comprises a wastegate seat, and a bore that extends between the interior surface and the exterior surface; a bushing disposed at least partially in the bore wherein the bushing comprises a bushing bore; a wastegate that comprises a shaft that extends through the bushing bore to a shaft end, a shaft shoulder disposed in the bushing bore, a plug, and an arm disposed between the shaft and the plug; a ring fixedly disposed at least in part in the bushing bore between the shaft shoulder and the shaft end; and a control arm connected to the shaft proximate to the shaft end to define an axial distance between a surface of the control arm and the shaft shoulder wherein the ring comprises an axial length that is less than the axial distance. ### Claim 2 (depends on 1) The turbine housing assembly of claim 1 comprising a ring weld that fixes the ring to the bushing. ### Claim 3 (depends on 1) The turbine housing assembly of claim 1 wherein the shaft comprises a journal and wherein the shaft shoulder comprises a shaft journal shoulder. ### Claim 4 (depends on 3) The turbine housing assembly of claim 3 wherein the shaft comprises two journals. ### Claim 5 (depends on 1) The turbine housing assembly of claim 1 wherein the wastegate seat comprises a conical surface. ### Claim 6 (depends on 1) The turbine housing assembly of claim 1 wherein the plug comprises a convex toroidal surface. ### Claim 7 (depends on 1) The turbine housing assembly of claim 1 wherein the control arm is welded to the shaft. ### Claim 8 (depends on 1) The turbine housing assembly of claim 1 wherein a difference between the axial distance and the axial length defines an axial clearance. ### Claim 9 (depends on 8) The turbine housing assembly of claim 8 wherein the axial clearance corresponds to a shim dimension. ### Claim 10 (depends on 1) The turbine housing assembly of claim 1 comprising a shim disposed between in a clearance defined by a difference between the axial distance and the axial length. ### Claim 11 (depends on 1) The turbine housing assembly of claim 1 wherein the bushing comprises a shoulder, wherein the exterior surface of the turbine housing comprises a seat surface disposed about the bore and wherein the shoulder of the bushing is seated against the seat surface of the turbine housing. ### Claim 12 (depends on 1) The turbine housing assembly of claim 1 wherein the ring comprises a mesh ring. ### Claim 13 (depends on 1) The turbine housing assembly of claim 1 wherein the ring comprises a resilient ring that comprises a pre-determined uncompressed operational axial length and a predetermined compressed operational axial length. ### Claim 14 (depends on 1) The turbine housing assembly of claim 1 wherein the bushing bore comprises a plurality of inner diameter. ### Claim 15 (depends on 1) The turbine housing assembly of claim 1 wherein the bushing bore comprises a first inner diameter bore portion and a smaller, second inner diameter portion wherein the ring is fixedly disposed at least in part in the first inner diameter bore portion.