US20120183392A1 - Cast turbine housing with stamped volute - Google Patents
Cast turbine housing with stamped volute Download PDFInfo
- Publication number
- US20120183392A1 US20120183392A1 US13/351,572 US201213351572A US2012183392A1 US 20120183392 A1 US20120183392 A1 US 20120183392A1 US 201213351572 A US201213351572 A US 201213351572A US 2012183392 A1 US2012183392 A1 US 2012183392A1
- Authority
- US
- United States
- Prior art keywords
- volute
- housing
- turbine housing
- turbine
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/026—Scrolls for radial machines or engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/50—Building or constructing in particular ways
- F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/516—Surface roughness
Definitions
- the present invention relates generally to turbine housings, and more particularly, to a turbine housing having an insert member.
- turbochargers are often used with combustion engines to increase the power output of the engine.
- Turbochargers increase power by increasing the amount of air used to facilitate combustion in the engine.
- Increasing the amount to air provided to the cylinders of the engine allows for a proportional increase in the amount to fuel that may be burned in the engine. This increased fuel amount leads to increased power output.
- Turbochargers often utilize the engine's exhaust to spin a turbine, which in turn spins an air pump to compress air.
- the compressed air is pumped into the cylinders during combustion.
- the turbine is typically positioned within a housing that includes an inlet for the engine's exhaust. Additionally, a turbine may be positioned on the compressor side to facilitate ambient air compression.
- the housing has a generally volute shape so that gasses channeled into the housing create rotational flow to spin the turbine located in the housing.
- turbine housings suffer from several deficiencies. As explained in further detail below, turbine housings are traditionally composed of either cast metal, such as cast iron, or stamped metals, such as stamped stainless steel. Commonly, stamped housings are used in applications that require greater strength or durability. However, while stamped housing provide increased strength and durability, they also suffer from several drawbacks. For example, in some circumstances it may be difficult, if not impossible to achieve the desired housing configuration through the stamping process. In such cases, it may be desirable to cast the housing into the desired configuration.
- Cast housings however, also suffer from some drawbacks.
- the interior surface of a cast housing often has a rough finish. This rough surface creates a turbulent flow for exhaust gasses traveling through the housing.
- interior surfaces of cast housings are difficult if not impossible to finish given the small spaces and volute shape of the housing.
- stamped housings are ideal for maximizing the flow of gasses through the housing.
- Stamped housings are commonly cold rolled to provide a smooth interior surface that increases flow resulting in better efficiencies and improved miles per gallon ratings for the engine.
- a turbine housing is generally presented.
- the turbine housing includes a housing having a volute section.
- the volute section may include a volute insert positioned with an interior portion of the volute section.
- the surface of the volute insert may be smoother than the interior surface of the volute to reduce turbulence and increase air flow within the volute.
- the turbine housing may be comprised of cast iron.
- the volute insert may be comprised of stamped steel.
- the turbine housing may be positioned at the compressor side or the exhaust side of a turbocharger.
- FIG. 1 illustrates a cross-sectional view of a cast housing
- FIG. 2 illustrates a top view of a volute
- FIG. 3 illustrates a cross-sectional view of a cast housing having a stamped volute.
- FIG. 1 illustrates a cast turbine housing 10 , such as a cast iron turbine housing.
- the housing 10 may be any appropriate size and shape and may be cast out of any appropriate metal or material, as is known in the art.
- the turbine housing 10 may include a generally volute-shaped portion (“volute”) 12 .
- the volute 12 may comprise a generally circular or spiral shaped shell.
- the volute 12 may be hollow to allow the flow of gasses therethrough.
- the volute 12 may include an atmospheric inlet or exhaust outlet at an opening 13 of the housing 10 and may house a turbine 15 therein.
- the shape of the volute 12 and the position of the opening 13 promote rotational flow within the housing 10 to spin the turbine 15 positioned generally in the center of the volute 12 .
- the volute 12 may have a generally rounded cross section to surround the hollow opening.
- the cross section may include a generally flat base portion 14 , a side wall 16 , and arced top wall 18 . It will be appreciated, however, that the volute cross section may have any appropriate configuration.
- the turbine housing 10 may include a volute insert 20 , as best illustrated in FIG. 3 .
- the volute insert 20 may be any appropriate size and shape, such as generally volute shaped and sized and shaped similarly to the volute 12 to be nested within at least a portion of the volute 12 .
- the volute insert 20 may comprise a generally flat bottom portion 22 to engage the interior of the base portion 14 , an adjacent side wall 24 to engage the interior of the housing side wall 16 , and an arced top wall 26 to engage the interior of the arced top wall 18 of the volute 12 .
- the volute insert 20 may be any cross sectional shape and may extend within any portion of the volute 12 .
- the volute insert 20 may be composed of any appropriate material.
- the volute insert 20 may be comprised of stamped stainless steel, such as cold rolled stamped stainless steel. The cold rolling process may provide a smooth interior surface of the volute insert 20 to reduce turbulence and increase flow efficiency of gasses through the volute 12 . While the volute insert 20 is described as comprising stainless steel, it will be appreciated that the insert 20 may comprise any material.
- the interior surface of the volute insert 20 may be smoother than the than the interior surface of the volute 12 .
- the housing 10 may be comprised of cast iron and the volute insert 20 may be comprised of stamped steel.
- the surface of the stamped steel volute insert 20 may be smoother than the interior surface of the volute 12 .
- the volute insert 20 may reduce turbulence and increase flow within the housing 10 .
- the volute insert 20 may be configured to cover a specific portion of the interior surface of the housing volute 12 .
- the volute insert 20 may cover between 95% and 100% of the housing volute 12 interior.
- the volute insert 20 may cover between 90% and 100% of the volute 12 interior.
- the volute insert may cover between 80% and 90% of the volute 12 interior. It will be appreciate, however, that the volute insert may cover any specified portion of the interior surface of the volute 12 .
- the turbine housing 10 having a volute insert 20 may be manufactured using any methods known in the art.
- the cast housing 12 may be cast to surround the volute insert 20 .
- the volute insert 20 may be inserted into the volute 12 or a portion of the volute 12 after the volute is cast.
- a turbocharger may include a first turbine and turbine housing at the compressor side and a second turbine and turbine housing at the exhaust side.
- the turbine housing 10 , volute insert 20 and other features described herein may be applied to the turbine housing at either the exhaust or compressor side of the turbocharger.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
A turbine housing includes a housing having a volute section. A volute insert is positioned within an interior portion of the volute section. The surface of the volute insert may be smoother than the interior surface of the volute to reduce turbulence and increase air flow within the volute.
Description
- This application claims benefit from U.S. Provisional Patent Application No. 61/432,996 entitled “CAST TURBINE HOUSING WITH STAMPED VOLUTE,” filed on Jan. 14, 2011 which is hereby incorporated in its entirety by reference.
- The present invention relates generally to turbine housings, and more particularly, to a turbine housing having an insert member.
- As is known in the art, turbochargers are often used with combustion engines to increase the power output of the engine. Turbochargers increase power by increasing the amount of air used to facilitate combustion in the engine. Increasing the amount to air provided to the cylinders of the engine allows for a proportional increase in the amount to fuel that may be burned in the engine. This increased fuel amount leads to increased power output.
- Turbochargers often utilize the engine's exhaust to spin a turbine, which in turn spins an air pump to compress air. The compressed air is pumped into the cylinders during combustion. The turbine is typically positioned within a housing that includes an inlet for the engine's exhaust. Additionally, a turbine may be positioned on the compressor side to facilitate ambient air compression. The housing has a generally volute shape so that gasses channeled into the housing create rotational flow to spin the turbine located in the housing.
- Traditional turbine housings suffer from several deficiencies. As explained in further detail below, turbine housings are traditionally composed of either cast metal, such as cast iron, or stamped metals, such as stamped stainless steel. Commonly, stamped housings are used in applications that require greater strength or durability. However, while stamped housing provide increased strength and durability, they also suffer from several drawbacks. For example, in some circumstances it may be difficult, if not impossible to achieve the desired housing configuration through the stamping process. In such cases, it may be desirable to cast the housing into the desired configuration.
- Cast housings, however, also suffer from some drawbacks. For example, the interior surface of a cast housing often has a rough finish. This rough surface creates a turbulent flow for exhaust gasses traveling through the housing. Further, interior surfaces of cast housings are difficult if not impossible to finish given the small spaces and volute shape of the housing.
- By contrast, stamped housings are ideal for maximizing the flow of gasses through the housing. Stamped housings are commonly cold rolled to provide a smooth interior surface that increases flow resulting in better efficiencies and improved miles per gallon ratings for the engine.
- Therefore, an improved turbine housing with casting configurability and stamped flow characteristics is needed.
- A turbine housing is generally presented. The turbine housing includes a housing having a volute section. The volute section may include a volute insert positioned with an interior portion of the volute section. The surface of the volute insert may be smoother than the interior surface of the volute to reduce turbulence and increase air flow within the volute.
- In an embodiment, the turbine housing may be comprised of cast iron. The volute insert may be comprised of stamped steel. The turbine housing may be positioned at the compressor side or the exhaust side of a turbocharger.
- Objects and advantages together with the operation of the invention may be better understood by reference to the detailed description taken in connection with the following illustrations, wherein:
-
FIG. 1 illustrates a cross-sectional view of a cast housing; -
FIG. 2 illustrates a top view of a volute; and -
FIG. 3 illustrates a cross-sectional view of a cast housing having a stamped volute. - Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. It is to be understood that other embodiments may be utilized and structural and functional changes may be made without departing from the respective scope of the present invention.
- The efficiency of the power generated by a turbocharged engine may depend on the efficiency in which a turbine housing manages and channels the flow of gasses through the turbine housing.
FIG. 1 illustrates acast turbine housing 10, such as a cast iron turbine housing. Thehousing 10 may be any appropriate size and shape and may be cast out of any appropriate metal or material, as is known in the art. - The
turbine housing 10 may include a generally volute-shaped portion (“volute”) 12. As illustrated inFIG. 2 , thevolute 12 may comprise a generally circular or spiral shaped shell. Thevolute 12 may be hollow to allow the flow of gasses therethrough. Thevolute 12 may include an atmospheric inlet or exhaust outlet at an opening 13 of thehousing 10 and may house aturbine 15 therein. The shape of thevolute 12 and the position of theopening 13 promote rotational flow within thehousing 10 to spin theturbine 15 positioned generally in the center of thevolute 12. - As illustrated in
FIG. 1 , thevolute 12 may have a generally rounded cross section to surround the hollow opening. The cross section may include a generallyflat base portion 14, aside wall 16, and arcedtop wall 18. It will be appreciated, however, that the volute cross section may have any appropriate configuration. - The
turbine housing 10 may include avolute insert 20, as best illustrated inFIG. 3 . Thevolute insert 20 may be any appropriate size and shape, such as generally volute shaped and sized and shaped similarly to thevolute 12 to be nested within at least a portion of thevolute 12. For example, thevolute insert 20 may comprise a generallyflat bottom portion 22 to engage the interior of thebase portion 14, anadjacent side wall 24 to engage the interior of thehousing side wall 16, and an arcedtop wall 26 to engage the interior of the arcedtop wall 18 of thevolute 12. It will be appreciated, however, that thevolute insert 20 may be any cross sectional shape and may extend within any portion of thevolute 12. - The
volute insert 20 may be composed of any appropriate material. For example, thevolute insert 20 may be comprised of stamped stainless steel, such as cold rolled stamped stainless steel. The cold rolling process may provide a smooth interior surface of thevolute insert 20 to reduce turbulence and increase flow efficiency of gasses through thevolute 12. While thevolute insert 20 is described as comprising stainless steel, it will be appreciated that theinsert 20 may comprise any material. - In an embodiment, the interior surface of the
volute insert 20 may be smoother than the than the interior surface of thevolute 12. For example, thehousing 10 may be comprised of cast iron and thevolute insert 20 may be comprised of stamped steel. The surface of the stampedsteel volute insert 20 may be smoother than the interior surface of thevolute 12. By providing a smoother interior surface, thevolute insert 20 may reduce turbulence and increase flow within thehousing 10. - The
volute insert 20 may be configured to cover a specific portion of the interior surface of thehousing volute 12. For example, thevolute insert 20 may cover between 95% and 100% of thehousing volute 12 interior. In an embodiment, thevolute insert 20 may cover between 90% and 100% of the volute 12 interior. In another embodiment, the volute insert may cover between 80% and 90% of the volute 12 interior. It will be appreciate, however, that the volute insert may cover any specified portion of the interior surface of thevolute 12. - The
turbine housing 10 having avolute insert 20 may be manufactured using any methods known in the art. For example, thecast housing 12 may be cast to surround thevolute insert 20. Alternatively, thevolute insert 20 may be inserted into thevolute 12 or a portion of thevolute 12 after the volute is cast. - It will be appreciated that the
turbine housing 10 as described herein may be located at either the compressor or exhaust side of a turbocharger. For example, a turbocharger may include a first turbine and turbine housing at the compressor side and a second turbine and turbine housing at the exhaust side. Theturbine housing 10,volute insert 20 and other features described herein may be applied to the turbine housing at either the exhaust or compressor side of the turbocharger. - The invention has been described above and, obviously, modifications and alternations will occur to others upon a reading and understanding of this specification. The claims as follows are intended to include all modifications and alterations insofar as they come within the scope of the claims or the equivalent thereof.
Claims (11)
1. A turbine housing comprising:
a housing including a volute section;
a volute insert positioned within an interior portion of said volute section; and
wherein the surface of said volute insert is smoother than the interior surface of said volute section.
2. The turbine housing of claim 1 , wherein said housing is a cast housing.
3. The turbine housing of claim 2 , wherein said cast housing is comprised of cast iron.
4. The turbine housing of claim 1 , wherein said volute insert is stamped.
5. The turbine housing of claim 4 , wherein said volute insert is comprised of stamped steel.
6. The turbine housing of claim 1 further comprising a turbine positioned within the housing.
7. The turbine housing of claim 1 , wherein said housing is positioned on an exhaust side of a turbocharger.
8. The turbine housing of claim 1 , wherein said housing is positioned on a compressor side of a turbocharger.
9. The turbine housing of claim 1 , wherein the volute insert covers between 90% and 100% of the interior surface of the volute section.
10. The turbine housing of claim 1 , wherein the volute insert covers between 80% and 90% of the interior surface of the volute section.
11. The turbine housing of claim 1 , wherein the volute section is generally spiral shaped.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/351,572 US20120183392A1 (en) | 2011-01-14 | 2012-01-17 | Cast turbine housing with stamped volute |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161432996P | 2011-01-14 | 2011-01-14 | |
US13/351,572 US20120183392A1 (en) | 2011-01-14 | 2012-01-17 | Cast turbine housing with stamped volute |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120183392A1 true US20120183392A1 (en) | 2012-07-19 |
Family
ID=46490891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/351,572 Abandoned US20120183392A1 (en) | 2011-01-14 | 2012-01-17 | Cast turbine housing with stamped volute |
Country Status (2)
Country | Link |
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US (1) | US20120183392A1 (en) |
WO (1) | WO2012097365A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170204743A1 (en) * | 2014-11-04 | 2017-07-20 | Mitsubishi Heavy Industries, Ltd. | Turbine housing and method for manufacturing turbine housing |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4046114A (en) * | 1975-10-06 | 1977-09-06 | General Motors Corporation | Insulated, high efficiency, low heat rejection, engine cylinder head |
US6220234B1 (en) * | 1999-03-04 | 2001-04-24 | Cummins Engine Company | Coated compressor diffuser |
US20060013707A1 (en) * | 2004-07-13 | 2006-01-19 | Pump Engineering, Inc. | Centrifugal pump |
US20100310364A1 (en) * | 2008-02-13 | 2010-12-09 | Siegfried Botsch | Turbine housing and method for producing a turbine housing |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100021287A1 (en) * | 2008-07-24 | 2010-01-28 | Emmanuel Bouvier | Turbine housing insert in sliding variable-geometry turbocharger |
-
2012
- 2012-01-17 WO PCT/US2012/021508 patent/WO2012097365A1/en active Application Filing
- 2012-01-17 US US13/351,572 patent/US20120183392A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4046114A (en) * | 1975-10-06 | 1977-09-06 | General Motors Corporation | Insulated, high efficiency, low heat rejection, engine cylinder head |
US6220234B1 (en) * | 1999-03-04 | 2001-04-24 | Cummins Engine Company | Coated compressor diffuser |
US20060013707A1 (en) * | 2004-07-13 | 2006-01-19 | Pump Engineering, Inc. | Centrifugal pump |
US20100310364A1 (en) * | 2008-02-13 | 2010-12-09 | Siegfried Botsch | Turbine housing and method for producing a turbine housing |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170204743A1 (en) * | 2014-11-04 | 2017-07-20 | Mitsubishi Heavy Industries, Ltd. | Turbine housing and method for manufacturing turbine housing |
US10519850B2 (en) * | 2014-11-04 | 2019-12-31 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Turbine housing and method of producing turbine housing |
Also Published As
Publication number | Publication date |
---|---|
WO2012097365A1 (en) | 2012-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FLEXIBLE METAL, INC., CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STEMPIEN, VINCE;REEL/FRAME:027971/0271 Effective date: 20120326 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |