Turbine rotor
US-9260971-B2 · Feb 16, 2016 · US
Turbine wheel
US9915152B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9915152-B2 |
| Application number | US-201314425660-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2013 |
| Priority date | Sep 19, 2012 |
| Publication date | Mar 13, 2018 |
| Grant date | Mar 13, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A turbine wheel ( 4 ) having a hub ( 29 ); a multiplicity of turbine wheel blades ( 30 ) arranged around the hub ( 29 ); a turbine wheel back wall ( 31 ) which is arranged on the hub ( 29 ) adjacent to an edge region ( 32 ) of the turbine wheel blades ( 30 ); wherein the wall thickness (W) of the turbine wheel ( 4 ) back wall is reduced in regions.
First claim
Opening claim text (preview).
The invention claimed is: 1. A turbine wheel ( 4 ) having a hub ( 29 ) including a radially enlarged disc-like portion of the hub, the disc-like portion defining a floor on one side and a backwall ( 31 ) on the other side and a radially outer edge, with a wall defined between the floor and the backwall ( 31 ); and a multiplicity of turbine wheel blades ( 30 ) arranged around the hub ( 29 ); wherein the radially outer edge has regions with a first wall thickness (W) and regions with a reduced wall thickness compared to the first wall thickness (W) of the radially enlarged disc-like portion of the hub, the turbine wheel back wall ( 31 ) regions of reduced thickness are defined by pockets ( 33 ) which are open radially outwardly, and the pockets ( 33 ) do not extend through the entire wall thickness (W) of the turbine wheel backwall ( 31 ). 2. The turbine wheel as claimed in claim 1 , wherein the pockets ( 33 ) are arranged on the outer edge region of the turbine wheel backwall ( 31 ) between blades. 3. An exhaust-gas turbocharger ( 1 ) having a turbine housing ( 2 ) in which is arranged a turbine wheel ( 4 ) which has: a hub ( 29 ) including a radially enlarged disc-like portion of the hub, the disc-like portion defining a floor on one side and a backwall ( 31 ) on the other side and a radially outer edge, with a wall defined between the floor and the backwall ( 31 ); and a multiplicity of turbine wheel blades ( 30 ) arranged around the hub ( 29 ); wherein the radially outer edge has regions with a first wall thickness (W) and regions with a reduced wall thickness compared to the first wall thickness (W) of the radially enlarged disc-like portion of the hub, and the pockets ( 33 ) do not extend through the entire wall thickness (W) of the turbine wheel backwall ( 31 ). 4. The exhaust-gas turbocharger as claimed in claim 3 , wherein the turbine wheel back wall ( 31 ) has at least one pocket ( 33 ) which is open radially outwardly. 5. The exhaust-gas turbocharger as claimed in claim 3 , wherein the pockets ( 33 ) are arranged on the radially outer edge of the turbine wheel backwall ( 31 ).
Assignees
Inventors
Classifications
machined; miscellaneous · CPC title
Preventing, counteracting or reducing vibration or noise · CPC title
Engines characterised by provision of pumps driven at least for part of the time by exhaust · CPC title
in turbochargers · CPC title
- F01D5/225Primary
by shrouding · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9915152B2 cover?
- A turbine wheel ( 4 ) having a hub ( 29 ); a multiplicity of turbine wheel blades ( 30 ) arranged around the hub ( 29 ); a turbine wheel back wall ( 31 ) which is arranged on the hub ( 29 ) adjacent to an edge region ( 32 ) of the turbine wheel blades ( 30 ); wherein the wall thickness (W) of the turbine wheel ( 4 ) back wall is reduced in regions.
- Who is the assignee on this patent?
- Borgwarner Inc
- What technology area does this patent fall under?
- Primary CPC classification F01D5/225. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).