US20130108429A1 - Turbine housing of turbocharger for vehicle - Google Patents

Turbine housing of turbocharger for vehicle Download PDF

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Publication number
US20130108429A1
US20130108429A1 US13/489,752 US201213489752A US2013108429A1 US 20130108429 A1 US20130108429 A1 US 20130108429A1 US 201213489752 A US201213489752 A US 201213489752A US 2013108429 A1 US2013108429 A1 US 2013108429A1
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US
United States
Prior art keywords
scroll
exhaust gas
turbine wheel
partition
turbine housing
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
US13/489,752
Other languages
English (en)
Inventor
Kyung Sub Sung
Kil Min Moon
Dong Ho Chu
Sang Joon Park
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.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
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 Hyundai Motor Co filed Critical Hyundai Motor Co
Assigned to HYUNDAI MOTOR COMPANY reassignment HYUNDAI MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHU, DONG HO, MOON, KIL MIN, PARK, SANG JOON, SUNG, KYUNG SUB
Publication of US20130108429A1 publication Critical patent/US20130108429A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • 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

Definitions

  • the present invention relates to a turbine housing of a turbocharger for a vehicle. More particularly, the present invention relates to a turbine housing of a turbocharger for a vehicle that improves durability.
  • engine output per cycle can be increased when pressure of intake air flowing into a cylinder of an engine is increased to higher than atmospheric pressure and an air amount in the cylinder is increased. This is called supercharging. Mechanical supercharging deteriorates thermal efficiency even though crankshaft power is increased since output of a crankshaft is used for compressing the intake air.
  • the turbocharger has been developed. According to the turbocharger, a compressor fixedly connected with an exhaust turbine feeds air into the cylinder when the exhaust turbine is operated by energy from exhaust gas. Therefore, engine output is improved.
  • the turbocharger is widely used with diesel engines where a knocking problem does not generally occur as opposed to a gasoline engine where knocking occurs if the pressure in the cylinder is excessively increased by supercharging.
  • a turbine wheel that recovers exhaust energy and a compressor wheel that delivers compressed air to the cylinder are disposed on respective ends of the same shaft, and a housing for leading flow of the exhaust gas and the air covers each wheel.
  • the turbine housing is divided into a single scroll type having one exhaust gas passage and a twin scroll type having two exhaust gas passages divided by a partition.
  • the twin scroll type prevents exhaust interference of the engine and efficiently uses a pulse effect of the exhaust, and thus rotation efficiency of the turbine wheel can be improved.
  • Various aspects of the present invention are directed to providing a turbine housing of a turbocharger for a vehicle having advantages of improving durability of a partition of the turbine housing as a twin scroll type.
  • a turbine housing of a turbocharger for a vehicle that is connected to an exhaust manifold and in which a turbine wheel is rotated using kinetic energy of exhaust gas therein, may include a turbine wheel accepting portion having a circular hole shape so as to receive the turbine wheel therein, a scroll portion surrounding the turbine wheel accepting portion therein, wherein an exhaust gas passage is formed along a rotating direction of the turbine wheel through the scroll portion, a partition dividing the exhaust gas passage of the scroll portion into at least two passages, and a slit formed at the partition in a radial direction of the partition.
  • the partition may include a scroll wall extending from an inner surface of the scroll portion toward a center of the turbine housing, and a scroll tip formed at an end portion of the scroll wall, wherein the scroll tip is thinner than the scroll wall.
  • the scroll portion may include inner rims extending from an inner surface of the turbine housing and the scroll tip is disposed between the rims to deliver the exhaust gas to the turbine wheel through openings formed between the rims and the scroll tip.
  • a diameter of the rims is shorter than that of the scroll tip.
  • At least a portion of the exhaust gas passage of the scroll portion is open toward the turbine wheel so as to deliver the kinetic energy of the exhaust gas to the turbine wheel.
  • a width of the slit is constant along the radial direction of the partition.
  • the width of the slit is between approximately 0.2 mm and approximately 0.4 mm.
  • FIG. 1 is a perspective view of a turbine housing of a turbocharger for a vehicle according to an exemplary embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a turbocharger according to an exemplary embodiment of the present invention.
  • FIG. 3 is an enlarged cross-sectional view of a scroll portion according to an exemplary embodiment of the present invention.
  • FIG. 4 is a perspective view of a partition taken along a line A-A in FIG. 2 .
  • FIG. 1 is a perspective view of a turbine housing of a turbocharger for a vehicle according to an exemplary embodiment of the present invention.
  • a turbine housing 10 of a turbocharger for a vehicle is connected with an exhaust manifold 30 , and includes a scroll portion 11 and a turbine wheel accepting portion 15 .
  • the turbine housing 10 is adapted to receive exhaust gas from the exhaust manifold 30 .
  • the turbine housing 10 is adapted to operate a turbine by using kinetic energy of the exhaust gas.
  • the turbine wheel accepting portion 15 is formed with a circular hole shape penetrating the turbine housing 10 .
  • the scroll portion 11 forms passages to flow the exhaust gas along an exterior circumference of the turbine wheel accepting portion 15 .
  • FIG. 2 is a schematic diagram of a turbocharger according to an exemplary embodiment of the present invention.
  • the scroll portion 11 includes a power delivery hole 17 , a partition 14 , and a twin scroll 12 , and a turbine wheel 16 is disposed at the turbine wheel accepting portion 15 .
  • the power delivery hole 17 is formed along an interior circumference of the scroll portion 11 such that an exhaust gas passage of the scroll portion 11 is opened toward the turbine wheel 16 with a predetermined gap.
  • the partition 14 is formed to divide the exhaust gas passage of the scroll portion 11 into two passages, and the two passages divided by the partition 14 are called the twin scroll 12 .
  • the partition 14 protrudes from an interior surface of a radial outside portion of the scroll portion 11 to the proximity of the power delivery hole 17 , and thus the twin scroll 12 is formed.
  • the torque of the turbine wheel 16 rotated by the above-mentioned operation is delivered to a compressor wheel 20 , and the compressed air generated by rotation of the compressor wheel 20 is delivered to a cylinder.
  • An operation of the turbocharger that improves output of an engine by these processes is well-known to a person of ordinary skill in the art such that a detailed description thereof will be omitted.
  • FIG. 3 is an enlarged cross-sectional view of a scroll portion according to an exemplary embodiment of the present invention.
  • the partition 14 dividing the exhaust gas passage of the scroll portion 11 so as to form the twin scroll 12 includes a scroll wall 14 a and a scroll tip 14 b.
  • the scroll wall 14 a refers to a part of the partition 14 protruded from the interior surface of the radial outside of the scroll portion 11 .
  • the scroll tip 14 b refers to another part of the partition 14 close to the power delivery hole 17 .
  • the scroll tip 14 b that is close to the turbine wheel 16 is heated faster than the scroll wall 14 a .
  • the scroll tip 14 b that is formed thinner than the scroll wall 14 a emits heat easily and is cooled quickly. Therefore, the compression and the expansion of the scroll tip 14 b can be excessively generated in comparison with the scroll wall 14 a.
  • the scroll portion 11 includes inner rims 25 extending from an inner surface of the turbine housing 10 and the scroll tip 14 b is disposed between the rims 25 to deliver exhaust gas to the turbine wheel 16 through openings formed between the rims 25 and the scroll tip 14 b.
  • Diameter of the rims 25 may be shorter than that of the scroll tip 14 b.
  • FIG. 4 is a perspective view of a partition taken along a line A-A in FIG. 2 .
  • the partition 14 viewed along the line A-A in FIG. 2 may have an annular shape and includes a slit 18 .
  • At least one of slits 18 is formed radially at the partition 14 of the annular shape.
  • each slit 18 is a narrow gap formed from the scroll tip 14 b to the scroll wall 14 a so as to cut the partition 14 .
  • the width of the slit 18 may be about 0.2-0.4 mm, and preferably about 0.3 mm.
  • FIG. 4 Three straight slits 18 cutting the partition 14 are shown in FIG. 4 , but the number and shape of the slits 18 are not limited to the exemplary embodiment shown in FIG. 4 . The number and shape of the slits 18 can be changed variously by a person of ordinary skill in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)
US13/489,752 2011-10-31 2012-06-06 Turbine housing of turbocharger for vehicle Abandoned US20130108429A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0112248 2011-10-31
KR1020110112248A KR20130047310A (ko) 2011-10-31 2011-10-31 자동차용 터보차저의 터빈하우징

Publications (1)

Publication Number Publication Date
US20130108429A1 true US20130108429A1 (en) 2013-05-02

Family

ID=48084470

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/489,752 Abandoned US20130108429A1 (en) 2011-10-31 2012-06-06 Turbine housing of turbocharger for vehicle

Country Status (3)

Country Link
US (1) US20130108429A1 (de)
KR (1) KR20130047310A (de)
DE (1) DE102012105108A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130014497A1 (en) * 2011-07-15 2013-01-17 Gm Global Technology Operations Llc. Housing for an internal combustion engine
US20140356153A1 (en) * 2011-12-28 2014-12-04 Mitsubishi Heavy Industries, Ltd. Twin-scroll turbocharger
US20190353079A1 (en) * 2018-05-16 2019-11-21 GM Global Technology Operations LLC J-groove for crack suppression
US10690052B2 (en) 2017-05-19 2020-06-23 GM Global Technology Operations LLC Turbocharger assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381172A (en) * 1981-06-29 1983-04-26 General Motors Corporation Centripetal flow gas turbine
US4719757A (en) * 1984-03-15 1988-01-19 Mitsubishi Jidosha Kogya Kabushiki Kaisha Variable-volume turbocharger
EP0281345A1 (de) * 1987-03-02 1988-09-07 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Gehäuse für eine Turbine eines Turboladers
US20130219885A1 (en) * 2010-11-05 2013-08-29 Borgwarner Inc. Simplified variable geometry turbocharger with increased flow range

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007020747A1 (de) 2007-05-03 2008-11-13 Pilepro Llc Anordnung aus mehreren Spundwandkomponenten sowie Anschweißprofil hierfür

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381172A (en) * 1981-06-29 1983-04-26 General Motors Corporation Centripetal flow gas turbine
US4719757A (en) * 1984-03-15 1988-01-19 Mitsubishi Jidosha Kogya Kabushiki Kaisha Variable-volume turbocharger
EP0281345A1 (de) * 1987-03-02 1988-09-07 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Gehäuse für eine Turbine eines Turboladers
US20130219885A1 (en) * 2010-11-05 2013-08-29 Borgwarner Inc. Simplified variable geometry turbocharger with increased flow range

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130014497A1 (en) * 2011-07-15 2013-01-17 Gm Global Technology Operations Llc. Housing for an internal combustion engine
US20140356153A1 (en) * 2011-12-28 2014-12-04 Mitsubishi Heavy Industries, Ltd. Twin-scroll turbocharger
US9587554B2 (en) * 2011-12-28 2017-03-07 Mitsubishi Heavy Industries, Ltd. Twin-scroll turbocharger
US10690052B2 (en) 2017-05-19 2020-06-23 GM Global Technology Operations LLC Turbocharger assembly
US20190353079A1 (en) * 2018-05-16 2019-11-21 GM Global Technology Operations LLC J-groove for crack suppression
US10753266B2 (en) * 2018-05-16 2020-08-25 GM Global Technology Operations LLC J-groove for crack suppression

Also Published As

Publication number Publication date
DE102012105108A1 (de) 2013-05-02
KR20130047310A (ko) 2013-05-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUNG, KYUNG SUB;MOON, KIL MIN;CHU, DONG HO;AND OTHERS;REEL/FRAME:028328/0070

Effective date: 20120522

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION