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US20120183392A1 - Cast turbine housing with stamped volute - Google Patents

Cast turbine housing with stamped volute Download PDF

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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
Application number
US13/351,572
Other languages
English (en)
Inventor
Vince Stempien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flexible Metal Inc
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US13/351,572 priority Critical patent/US20120183392A1/en
Assigned to FLEXIBLE METAL, INC. reassignment FLEXIBLE METAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STEMPIEN, VINCE
Publication of US20120183392A1 publication Critical patent/US20120183392A1/en
Abandoned legal-status Critical Current

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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)
US13/351,572 2011-01-14 2012-01-17 Cast turbine housing with stamped volute Abandoned US20120183392A1 (en)

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
US (1) US20120183392A1 (fr)
WO (1) WO2012097365A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (fr) 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