US3922108A - Pre-whirl turbo charger apparatus - Google Patents
Pre-whirl turbo charger apparatus Download PDFInfo
- Publication number
- US3922108A US3922108A US452369A US45236974A US3922108A US 3922108 A US3922108 A US 3922108A US 452369 A US452369 A US 452369A US 45236974 A US45236974 A US 45236974A US 3922108 A US3922108 A US 3922108A
- Authority
- US
- United States
- Prior art keywords
- duct
- compressor
- air
- impeller
- plenum chamber
- 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.)
- Expired - Lifetime
Links
Images
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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
- F02B37/225—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits air passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
- F04D29/464—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps adjusting flow cross-section, otherwise than by using adjustable stator blades
-
- 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
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
-
- 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
- F05D2260/00—Function
- F05D2260/14—Preswirling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- ABSTRACT A prewhirl construction for the compressor of a turbocharger.
- the periphery of the compressor input opening is provided with a plurality of slanted spin vanes which impart a tangential velocity to air entering the compressor.
- the air is thus provided with a velocity component similar to the compressors impeller velocity.
- the input duct to the compressor carries a butterfly valve whose setting controls the amount of air entering through the peripheral spin vanes.
- the operating surge line is moved so as to increase the flow range of the compressor.
- This invention relates to the art of turbochargers and more particularly to an arrangement for prewhirling air which enters the compressor.
- Turbochargers are widely used on internal combustion engines and particularly on large diesel engines for trucks.
- turbochargers are driven by the engine exhaust gases. The exhaust is coupled to a turbine with the turbine in turn connected to the compressor. Ambient air is compressed by the compressor and fed into the input of the engine.
- Prewhirl or spin devices have been known for air compressors. Such devices often include a plurality of slanted vanes extending across the mouth of the compressor inlet and thereby impart to the incoming air a whirl component to the air, thereby reducing compressor work at a given compressor speed. Such devices are shown in U.S. Pat. Nos. 2,637,486 to Taylor, and 2,690,293 to Muhlberg, for example. Air prewhirl counter to impeller rotation increases the work done by the compressor, while air prewhirl in the same direction decreases the compressor work. The effect of prewhirl is more fully discussed in ASME Paper No. 63- AI-IGT-55 by Anderson and Shouman published March 1963.
- prewhirl moves the surge line (stall line) to a lower flow and thus expands the operating range.
- FIG. 1 is a cross-sectional view illustrating the prewhirl assembly of this invention.
- FIG. 2 is a cross-sectional view of the ring element which carries the slanted vanes.
- FIG. 3 is a plan view of the ring of FIG. 2.
- FIG. 4 is a plot showing the operation of the device with a 0.410 nozzle gap with the butterfly valve 49 open.
- FIG. 5 is a plot similar to that of FIG. 4, but with the butterfly valve fully open.
- the numeral denotes a compressor cover of a conventional turbocharger.
- the dashed element denoted by the numeral ,2 11 indicates a conventional impeller.
- the compressor cover 10 includes an annular chamber 12 which receives compressed air, the chamber defined by a hollow torus 14 having an integral inlet portion or mouth 18 provided at its periphery with annular flange 20.
- gularly rotatable post 36 the latter being adjustable to any desired angular position by means of lever assembly 38,40.
- the input end of duct 28v is coupled-to air filter 42, the filter extending radially to meet the input of a second duct 44 whose interior defines a plenum chamber communicating with compressor mouth 18 through spin vanes 24.
- the axial space between the radially outermost portions of vanes 24 and annular elements 20 and 22 define peripherally disposed air input passages 25 (see FIG. 3) through which air may pass.
- the passages converge, as nozzles, to an exit area 26.
- the operation of the device is as follows. With the vane of butterfly valve 34 angularly positioned so as to provide desired air flow in interior 30 of duct 28, the suction pressure in mouth 18 due to pumping action of impeller rotation results in ambient air passing through filter 42, entering duct 28 and pumping through the compressor. A regulated amount of air enters the compressor through passages 25. Should operating conditions be such that prewhirl is desired to change the surge condition, the butterfly valve vane 34 should be closed somewhat to restrict the flow of air through duct 28. Some air is now drawn in through filter 42, through plenum chamber 46 and into passages 25. As may be most readily visualized by reference to FIG. 3, the air is thus given a tangential component of velocity, in the same direction of rotation as that of impeller 1 1. Other air, as before, also passes through 30 into compressor mouth 18.
- the butterfly valve 34 is rotated still further to inhibit passage of air through duct 28, with correspondingly increased amounts of air flowing through passages 25 and nozzle exits 26, and thus spun or prewhirled prior to entering mouth 18.
- the passages 25 are defined by sheet vanes 24 angularly positioned. In lieu of such vanes, other arrangements for yielding slanting nozzles may be employed, such as drilling or casting apertures in a thickened ring.
- FIG. 4 of the drawings the operation of the apparatus is shown with valve disc open 49 degrees with respect to the flow axis 30 of duct 28.
- the several efficiency curves, for the indicated compressor speeds, are shown with their left portions being joined at the surge or stall line. It will be recalled that operating conditions are unstable to the left of the surge line and accordingly all compressor operation must take place to the right of this line.
- FIG. 5 is a similar plot, except that the butterfly valve is completely open, there being accordingly a minimum of prewhirl imparted to the air entering compressor mouth 18. It will be seen from a comparison of FIGS. 4 and 5 that (as is known in the art) the effect of positive prewhirl is to move the surge line to the left and the operating range of the device thereby extended.
- a compressor installation for a turbocharger for imparting prewhi rl to air entering the compressor including,
- a rotary centrifugal compressor having an impeller and having an elongated input flow duct defining a central intake passage in fluid communication with the intake of the impeller
- said flow duct having a rotary pivoted disc valve positioned therewithin to control the amount of air passing through the said duct towards said impeller
- a plurality of peripherally disposed passages in said duct which establish fluid communication between the interior and the exterior of the said duct, said passages including means for imparting a tangential 4 velocity to air passing therethrough into the duct interior from the duct exterior,
- peripheral openings being axially located in said duct between said rotary pivoted disc valve and said centrifugal impeller
- a casing surrounding said duct, one end of said casing being closed and meeting said duct at a region downstream of said peripherally disposed passages to thereby define an enlarged annular plenum chamber closed at one end, the other end of said plenum chamber being open and unrestricted and communicating with ambient air.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Supercharger (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US452369A US3922108A (en) | 1974-03-18 | 1974-03-18 | Pre-whirl turbo charger apparatus |
CA216,177A CA1025829A (en) | 1974-03-18 | 1974-12-17 | Prewhirl turbo charger apparatus |
DE19752500496 DE2500496A1 (de) | 1974-03-18 | 1975-01-08 | Kompressorvorrichtung |
BR109/75A BR7500109D0 (pt) | 1974-03-18 | 1975-01-08 | Estrutura de compressor para um turbo compressor |
SE7500233A SE7500233L (US20030199744A1-20031023-C00003.png) | 1974-03-18 | 1975-01-09 | |
GB921/75A GB1480871A (en) | 1974-03-18 | 1975-01-09 | Compressor installation for a turbocharger |
JP50005510A JPS5812479B2 (ja) | 1974-03-18 | 1975-01-10 | ヨビセンカイタ−ボチヤ−ジヤソウチ |
FR7501945A FR2264995A1 (US20030199744A1-20031023-C00003.png) | 1974-03-18 | 1975-01-22 | |
IT20852/75A IT1033365B (it) | 1974-03-18 | 1975-03-03 | Turbocompressore a gas di scarico con premovimento vorticoso dell aria |
ES435685A ES435685A1 (es) | 1974-03-18 | 1975-03-17 | Perfeccionamientos en aparatos turbosoplantes de prerrota- cion para motores de combustion interna. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US452369A US3922108A (en) | 1974-03-18 | 1974-03-18 | Pre-whirl turbo charger apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US3922108A true US3922108A (en) | 1975-11-25 |
Family
ID=23796198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US452369A Expired - Lifetime US3922108A (en) | 1974-03-18 | 1974-03-18 | Pre-whirl turbo charger apparatus |
Country Status (10)
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533293A (en) * | 1981-12-22 | 1985-08-06 | Thomassen International | Method of improving the part-load behavior of a turbo machine, and a compressor or pump adapted for use of such method |
US4767317A (en) * | 1985-01-26 | 1988-08-30 | Carl Kramer | Apparatus for mixing a gas main flow with at least one gas subflow |
US4832642A (en) * | 1985-10-08 | 1989-05-23 | Thompson Marine Propulsion Systems, Inc. | Outboard boat propulsion installation |
US5266003A (en) * | 1992-05-20 | 1993-11-30 | Praxair Technology, Inc. | Compressor collector with nonuniform cross section |
US20040009061A1 (en) * | 2002-07-13 | 2004-01-15 | Imra Europe S.A. Uk Research Centre. | Compressors |
US20090139228A1 (en) * | 2007-12-04 | 2009-06-04 | Mann+Hummel Gmbh | Exhaust Gas Turbocharger for An Internal Combustion Engine and Device for Switching An Air Guiding Device of An Exhaust Gas Turbocharger |
EP2163746A2 (en) | 2008-09-10 | 2010-03-17 | BorgWarner Inc. | Coupling turbochargers for passive pre-swirl counter-rotation |
US20140069095A1 (en) * | 2012-09-10 | 2014-03-13 | Caterpillar Inc. | Engine system having intake conduit with surge inhibitor and method |
US20150354591A1 (en) * | 2013-02-22 | 2015-12-10 | Mitsubishi Heavy Industries, Ltd. | Centrifugal compressor |
US20170284407A1 (en) * | 2016-03-29 | 2017-10-05 | Michael Xuwang Cao | Automatic Inlet Swirl Device for Turbomachinery |
US9932991B2 (en) | 2016-04-04 | 2018-04-03 | Ford Global Technologies, Llc | Active swirl device for turbocharger compressor |
CN111503059A (zh) * | 2020-04-10 | 2020-08-07 | 上海交通大学 | 离心压气机入口气流脉动调节装置 |
US11207628B2 (en) | 2018-09-27 | 2021-12-28 | Noram Engineering And Constructors Ltd. | Processes and devices for separating entrainment from sulphuric acid plant process gas |
US11208971B2 (en) * | 2019-01-16 | 2021-12-28 | Ford Global Technologies, Llc | Methods and systems for mitigating condensate formation |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58169118U (ja) * | 1982-05-08 | 1983-11-11 | 株式会社クボタ | 過給機 |
SE451873B (sv) * | 1982-07-29 | 1987-11-02 | Do G Pk I Experiment | Axialflekt |
JPS6078484U (ja) * | 1983-10-31 | 1985-05-31 | 白井 修 | 着脱式綴具 |
SE445061B (sv) * | 1984-10-10 | 1986-05-26 | Do Politekh Inst | Flekt med anordning for rotation av den i lophjulet inkommande luftstrommen |
DE3529281C1 (de) * | 1985-08-16 | 1986-09-11 | Daimler-Benz Ag, 7000 Stuttgart | Vorrichtung zur Richtungsaenderung eines durch den Einlass eines Verdichters eines Abgasturboladers einer Brennkraftmaschine eintretenden Luftstromes |
GB2224076A (en) * | 1988-08-03 | 1990-04-25 | Atomic Energy Authority Uk | Controlling pumps |
DE19514707A1 (de) * | 1995-04-21 | 1996-10-24 | Johannes Werner | Vorleiteinrichtung für Radialverdichter |
BE1012901A3 (nl) * | 1999-09-15 | 2001-05-08 | Atlas Copco Airpower Nv | Werkwijze voor het regelen van het debiet in een leiding voor gasvormig fluidum en leiding voorzien van een debietregeling. |
DE102004039299A1 (de) * | 2004-08-13 | 2006-02-23 | Fev Motorentechnik Gmbh | Turboverdichter für eine Brennkraftmaschine |
FR2878914B1 (fr) * | 2004-12-03 | 2010-09-03 | Inst Francais Du Petrole | Compresseur d'air, notamment pour moteur a combustion interne, comprenant une chambre de mise en rotation de l'air admis |
DE102005023647B4 (de) * | 2005-05-21 | 2014-09-04 | Daimler Ag | Abgasturbolader mit einem Verdichter |
DE102007047506A1 (de) * | 2007-10-04 | 2008-10-23 | Voith Patent Gmbh | Verfahren und Vorrichtung zum Erzeugen eines drallbehafteten Mediumstromes, insbesondere für einen Abgasturbolader |
JP2010168916A (ja) * | 2009-01-20 | 2010-08-05 | Otics Corp | 過給機用コンプレッサ |
WO2016181427A1 (ja) * | 2015-05-14 | 2016-11-17 | 日産ライトトラック株式会社 | 圧縮空気製造装置およびこれを備えるターボチャージャ並びに内燃機関 |
EP4004380A4 (en) * | 2019-07-23 | 2023-08-09 | Edward Charles Mendler | HYBRID ELECTRIC TURBOCHARGER |
CN113217464B (zh) * | 2021-03-31 | 2022-08-19 | 江苏科技大学 | 一种组合式压气机机匣结构 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1517329A (en) * | 1921-08-29 | 1924-12-02 | Weiss Leo | Centrifugal fan or blower |
US2140148A (en) * | 1935-10-30 | 1938-12-13 | Davidson & Co Ltd | Control of centrifugal fans, pumps, and the like |
US2336010A (en) * | 1942-09-17 | 1943-12-07 | Fairchild Engine & Airplane | Supercharger |
US2405282A (en) * | 1938-02-02 | 1946-08-06 | Fed Reserve Bank | Variable ratio compressor |
US2690293A (en) * | 1951-01-20 | 1954-09-28 | Westinghouse Electric Corp | Fan |
US2798658A (en) * | 1955-03-01 | 1957-07-09 | Westinghouse Electric Corp | Volume controls for centrifugal fans |
US3672786A (en) * | 1970-11-02 | 1972-06-27 | Carrier Corp | Capacity control mechanism for centrifugal gas compressors |
-
1974
- 1974-03-18 US US452369A patent/US3922108A/en not_active Expired - Lifetime
- 1974-12-17 CA CA216,177A patent/CA1025829A/en not_active Expired
-
1975
- 1975-01-08 DE DE19752500496 patent/DE2500496A1/de not_active Withdrawn
- 1975-01-08 BR BR109/75A patent/BR7500109D0/pt unknown
- 1975-01-09 GB GB921/75A patent/GB1480871A/en not_active Expired
- 1975-01-09 SE SE7500233A patent/SE7500233L/xx unknown
- 1975-01-10 JP JP50005510A patent/JPS5812479B2/ja not_active Expired
- 1975-01-22 FR FR7501945A patent/FR2264995A1/fr not_active Withdrawn
- 1975-03-03 IT IT20852/75A patent/IT1033365B/it active
- 1975-03-17 ES ES435685A patent/ES435685A1/es not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1517329A (en) * | 1921-08-29 | 1924-12-02 | Weiss Leo | Centrifugal fan or blower |
US2140148A (en) * | 1935-10-30 | 1938-12-13 | Davidson & Co Ltd | Control of centrifugal fans, pumps, and the like |
US2405282A (en) * | 1938-02-02 | 1946-08-06 | Fed Reserve Bank | Variable ratio compressor |
US2336010A (en) * | 1942-09-17 | 1943-12-07 | Fairchild Engine & Airplane | Supercharger |
US2690293A (en) * | 1951-01-20 | 1954-09-28 | Westinghouse Electric Corp | Fan |
US2798658A (en) * | 1955-03-01 | 1957-07-09 | Westinghouse Electric Corp | Volume controls for centrifugal fans |
US3672786A (en) * | 1970-11-02 | 1972-06-27 | Carrier Corp | Capacity control mechanism for centrifugal gas compressors |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533293A (en) * | 1981-12-22 | 1985-08-06 | Thomassen International | Method of improving the part-load behavior of a turbo machine, and a compressor or pump adapted for use of such method |
US4767317A (en) * | 1985-01-26 | 1988-08-30 | Carl Kramer | Apparatus for mixing a gas main flow with at least one gas subflow |
US4832642A (en) * | 1985-10-08 | 1989-05-23 | Thompson Marine Propulsion Systems, Inc. | Outboard boat propulsion installation |
US5266003A (en) * | 1992-05-20 | 1993-11-30 | Praxair Technology, Inc. | Compressor collector with nonuniform cross section |
US20040009061A1 (en) * | 2002-07-13 | 2004-01-15 | Imra Europe S.A. Uk Research Centre. | Compressors |
GB2391265A (en) * | 2002-07-13 | 2004-02-04 | Imra Europ S A Uk Res Ct | Compressor inlet with swirl vanes, inner sleeve and shut-off valve |
US8156741B2 (en) * | 2007-12-04 | 2012-04-17 | Mann + Hummel Gmbh | Exhaust gas turbocharger for an internal combustion engine and device for switching an air guiding device of an exhaust gas turbocharger |
US20090139228A1 (en) * | 2007-12-04 | 2009-06-04 | Mann+Hummel Gmbh | Exhaust Gas Turbocharger for An Internal Combustion Engine and Device for Switching An Air Guiding Device of An Exhaust Gas Turbocharger |
EP2163746A2 (en) | 2008-09-10 | 2010-03-17 | BorgWarner Inc. | Coupling turbochargers for passive pre-swirl counter-rotation |
US20140069095A1 (en) * | 2012-09-10 | 2014-03-13 | Caterpillar Inc. | Engine system having intake conduit with surge inhibitor and method |
US8950183B2 (en) * | 2012-09-10 | 2015-02-10 | Caterpillar Inc. | Engine system having intake conduit with surge inhibitor and method |
US20150354591A1 (en) * | 2013-02-22 | 2015-12-10 | Mitsubishi Heavy Industries, Ltd. | Centrifugal compressor |
US10167877B2 (en) * | 2013-02-22 | 2019-01-01 | Mitsubishi Heavy Industries, Ltd. | Centrifugal compressor |
US20170284407A1 (en) * | 2016-03-29 | 2017-10-05 | Michael Xuwang Cao | Automatic Inlet Swirl Device for Turbomachinery |
US9932991B2 (en) | 2016-04-04 | 2018-04-03 | Ford Global Technologies, Llc | Active swirl device for turbocharger compressor |
US11207628B2 (en) | 2018-09-27 | 2021-12-28 | Noram Engineering And Constructors Ltd. | Processes and devices for separating entrainment from sulphuric acid plant process gas |
US11208971B2 (en) * | 2019-01-16 | 2021-12-28 | Ford Global Technologies, Llc | Methods and systems for mitigating condensate formation |
CN111503059A (zh) * | 2020-04-10 | 2020-08-07 | 上海交通大学 | 离心压气机入口气流脉动调节装置 |
CN111503059B (zh) * | 2020-04-10 | 2022-01-25 | 上海交通大学 | 离心压气机入口气流脉动调节装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2264995A1 (US20030199744A1-20031023-C00003.png) | 1975-10-17 |
JPS50125116A (US20030199744A1-20031023-C00003.png) | 1975-10-01 |
SE7500233L (US20030199744A1-20031023-C00003.png) | 1975-09-19 |
ES435685A1 (es) | 1977-01-16 |
IT1033365B (it) | 1979-07-10 |
CA1025829A (en) | 1978-02-07 |
DE2500496A1 (de) | 1975-09-25 |
BR7500109D0 (pt) | 1975-12-16 |
GB1480871A (en) | 1977-07-27 |
JPS5812479B2 (ja) | 1983-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3922108A (en) | Pre-whirl turbo charger apparatus | |
US10227917B2 (en) | Passive inlet-adjustment mechanisms for compressor, and turbocharger having same | |
US10544808B2 (en) | Turbocharger compressor having adjustable trim mechanism including vortex reducers | |
US10570905B2 (en) | Centrifugal compressor for a turbocharger, having synergistic ported shroud and inlet-adjustment mechanism | |
US5454225A (en) | Exhaust gas turbocharger for an internal combustion engine | |
US4512714A (en) | Variable flow turbine | |
US10502232B2 (en) | Turbocharger compressor having adjustable trim mechanism including swirl inducers | |
EP2803866B1 (en) | Centrifugal compressor with casing treatment for surge control | |
US5857337A (en) | Turbocharger | |
US7073334B2 (en) | Variable exhaust gas turbocharger | |
JPS5945808B2 (ja) | タ−ビンの構造 | |
US20180258842A1 (en) | Adjustable-trim centrifugal compressor for a turbocharger | |
GB2062116A (en) | Turbine Casing for Turbochargers | |
US11808283B2 (en) | Turbocharger having adjustable-trim centrifugal compressor including air inlet wall having cavities for suppression of noise and flow fluctuations | |
US11401948B2 (en) | Turbocharger compressor with inlet-adjustment mechanism having pivoting blades forming adjustable uninterrupted blade ring | |
US5484261A (en) | System for regulating air supply conditions of a turbo shaft machine | |
EP0635644B1 (en) | Inlet guide vane dewhistler | |
US2916198A (en) | Turbo-compressor apparatus | |
EP3667100B1 (en) | Turbocharger compressor with adjustable-trim mechanism and noise-attenuator | |
JP3381641B2 (ja) | 可変容量形ターボチャージャ | |
US4406125A (en) | Variable flow rate turbocharger | |
JPH08232671A (ja) | ターボチャージャのウェイストゲート構造 | |
JP3355801B2 (ja) | ターボチャージャーの排気バイパス構造 | |
JPS63230923A (ja) | タ−ボチヤ−ジヤ | |
KR20220099950A (ko) | 유동-최적화된 축방향 디퓨저 내로의 웨이스트-게이트 질량 유동의 동심적 도입 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ELJER MANUFACTURING, INC., TEXAS Free format text: RELEASE;ASSIGNOR:NATIONSBANK OF TEXAS, N.A.;REEL/FRAME:008354/0586 Effective date: 19970121 |