IN2012DN02723A - - Google Patents

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Publication number
IN2012DN02723A
IN2012DN02723A IN2723DEN2012A IN2012DN02723A IN 2012DN02723 A IN2012DN02723 A IN 2012DN02723A IN 2723DEN2012 A IN2723DEN2012 A IN 2723DEN2012A IN 2012DN02723 A IN2012DN02723 A IN 2012DN02723A
Authority
IN
India
Prior art keywords
sleeve
inlet
axial extent
turbine
circumference
Prior art date
Application number
Inventor
Tom J Roberts
John F Parker
Simon Moore
Original Assignee
Cummins Ltd
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
Priority claimed from GB0917513A external-priority patent/GB0917513D0/en
Priority claimed from GBGB1005680.2A external-priority patent/GB201005680D0/en
Priority claimed from GBGB1012488.1A external-priority patent/GB201012488D0/en
Application filed by Cummins Ltd filed Critical Cummins Ltd
Publication of IN2012DN02723A publication Critical patent/IN2012DN02723A/en

Links

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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/18—Final actuators arranged in stator parts varying effective number of nozzles or guide conduits, e.g. sequentially operable valves for steam turbines
    • 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
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/182—Two-dimensional patterned crenellated, notched
    • 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
    • F05D2250/00—Geometry
    • F05D2250/60—Structure; Surface texture
    • F05D2250/61—Structure; Surface texture corrugated
    • F05D2250/611—Structure; Surface texture corrugated undulated

Abstract

According to of the present invention there is provided a variable geometry turbine comprising: a turbine wheel mounted for rotation about a turbine axis within a housing, the housing defining an annular inlet surrounding the turbine wheel and defined between first and second inlet sidewalls, the annular inlet being divided into at least two axially offset inlet portions; a cylindrical sleeve axially movable across the annular inlet to vary the size of a gas flow path through the inlet; wherein an axial extent of a leading end of the sleeve varies in magnitude around a circumference of the sleeve. The variation in the axial extent defines a plurality of recesses and/or protrusions located around the circumference of the leading end of the sleeve. The sleeve, or the axial extent thereof, is free of vanes.
IN2723DEN2012 2009-10-06 2010-10-06 IN2012DN02723A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0917513A GB0917513D0 (en) 2009-10-06 2009-10-06 Axially divided nozzle VG
GBGB1005680.2A GB201005680D0 (en) 2010-04-06 2010-04-06 Variable geometry turbine
GBGB1012488.1A GB201012488D0 (en) 2010-07-26 2010-07-26 Turbomachine
PCT/GB2010/001869 WO2011042695A2 (en) 2009-10-06 2010-10-06 Turbomachine

Publications (1)

Publication Number Publication Date
IN2012DN02723A true IN2012DN02723A (en) 2015-09-11

Family

ID=43857220

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2723DEN2012 IN2012DN02723A (en) 2009-10-06 2010-10-06

Country Status (5)

Country Link
EP (1) EP2486245A2 (en)
CN (1) CN102667071A (en)
BR (1) BR112012007831A2 (en)
IN (1) IN2012DN02723A (en)
WO (1) WO2011042695A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113710884B (en) * 2019-04-19 2023-10-20 三菱重工发动机和增压器株式会社 Variable capacity turbine and supercharger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861774A (en) * 1950-02-16 1958-11-25 Alfred J Buchi Inlet control for radial flow turbines
BE793550A (en) * 1971-12-29 1973-04-16 Gen Electric CENTRIFUGAL PUMP WITH ADJUSTABLE DIFFUSER
JPH05133238A (en) * 1991-11-11 1993-05-28 Mitsubishi Heavy Ind Ltd Variable capacity supercharger
DE4204019A1 (en) * 1992-02-12 1993-05-27 Daimler Benz Ag IC engine controlled exhaust gas turbocharger - uses sliding sleeves to control gas flow through delivery ducts
GB0521354D0 (en) * 2005-10-20 2005-11-30 Holset Engineering Co Variable geometry turbine
WO2007058647A1 (en) * 2005-11-16 2007-05-24 Honeywell International Inc. Sliding piston cartridge and turbocharger incorporating same

Also Published As

Publication number Publication date
BR112012007831A2 (en) 2016-03-08
CN102667071A (en) 2012-09-12
EP2486245A2 (en) 2012-08-15
WO2011042695A2 (en) 2011-04-14
WO2011042695A3 (en) 2011-11-03

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