Compressor housing for supercharger and producing method of the same
US-2016356282-A1 · Dec 8, 2016 · US
Exhaust-gas turbocharger
US10119411B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10119411-B2 |
| Application number | US-201314406644-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 20, 2013 |
| Priority date | Jun 25, 2012 |
| Publication date | Nov 6, 2018 |
| Grant date | Nov 6, 2018 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
An exhaust-gas turbocharger ( 1 ) comprising a housing ( 2 ), a turbine wheel ( 5 ) with blades ( 6 ), a compressor wheel ( 4 ) with blades ( 6 ), and a shaft ( 3 ) which is mounted in the housing ( 2 ) and which connects the turbine wheel ( 5 ) and compressor wheel ( 4 ), wherein, in a gap ( 7 ) between the housing ( 2 ) and at least one blade ( 6 ), a contactless labyrinth seal ( 8 ) is formed on the blade ( 6 ) and on the housing ( 2 ), wherein the labyrinth seal ( 8 ) comprises at least one combination of a groove ( 13 ) and a projection ( 14 ).
First claim
Opening claim text (preview).
The invention claimed is: 1. An exhaust-gas turbocharger ( 1 ) comprising: a housing ( 2 ), a turbine wheel ( 5 ) with blades ( 6 ) adapted for receiving air radially and discharging air axially, a compressor wheel ( 4 ) with blades ( 6 ) adapted to drawing air in axially and discharging air radially, and a shaft ( 3 ) which is mounted in the housing ( 2 ) and which connects the turbine wheel ( 5 ) and compressor wheel ( 4 ), wherein, in a gap ( 7 ) between the housing ( 2 ) and at least one blade ( 6 ), a contactless labyrinth seal ( 8 ) is formed on the blade ( 6 ) and on the housing ( 2 ), wherein the labyrinth seal ( 8 ) comprises at least one combination of a groove ( 13 ) and a projection ( 14 ). 2. The exhaust-gas turbocharger as claimed in claim 1 , wherein the labyrinth seal ( 8 ) comprises at least one groove ( 13 ) in the housing ( 2 ) and one projection ( 14 ), which projects into the groove ( 13 ), on the blade ( 6 ), and/or at least one groove ( 13 ) in the blade ( 6 ) and one projection ( 14 ), which projects into the groove ( 13 ), on the housing ( 2 ). 3. The exhaust-gas turbocharger as claimed in claim 1 , wherein the labyrinth seal ( 8 ) comprises multiple combinations of a groove ( 13 ) and a projection ( 14 ) on a blade ( 6 ). 4. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is arranged at a blade tip ( 15 ) of the blade ( 6 ). 5. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is arranged on each blade ( 6 ) of the compressor wheel ( 4 ) or turbine wheel ( 5 ). 6. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is arranged in that half of the blade ( 6 ) of the compressor wheel ( 4 ) which faces toward a compressor outlet ( 9 ). 7. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is arranged in that half of the blade ( 6 ) of the turbine wheel ( 5 ) which faces toward a turbine inlet ( 10 ). 8. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is trapezoidal. 9. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is arranged in the downstream half of the blade ( 6 ) of the compressor wheel ( 4 ). 10. The exhaust-gas turbocharger as claimed in claim 1 , wherein the groove ( 13 ) and/or the projection ( 14 ) is arranged in the upstream half of the blade ( 6 ) of the turbine wheel ( 5 ).
Assignees
Inventors
Classifications
especially adapted for elastic fluid pumps · CPC title
the driving means being assisted by a power recovery turbine · CPC title
in turbochargers · CPC title
Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure · CPC title
- F04D29/162Primary
of a centrifugal flow wheel · CPC title
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Frequently asked questions
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- What does patent US10119411B2 cover?
- An exhaust-gas turbocharger ( 1 ) comprising a housing ( 2 ), a turbine wheel ( 5 ) with blades ( 6 ), a compressor wheel ( 4 ) with blades ( 6 ), and a shaft ( 3 ) which is mounted in the housing ( 2 ) and which connects the turbine wheel ( 5 ) and compressor wheel ( 4 ), wherein, in a gap ( 7 ) between the housing ( 2 ) and at least one blade ( 6 ), a contactless labyrinth seal ( 8 ) is forme…
- Who is the assignee on this patent?
- Borgwarner Inc
- What technology area does this patent fall under?
- Primary CPC classification F04D29/162. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 06 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).