EP2615308A1 - Dispositif de chargement - Google Patents

Dispositif de chargement Download PDF

Info

Publication number
EP2615308A1
EP2615308A1 EP12150970.7A EP12150970A EP2615308A1 EP 2615308 A1 EP2615308 A1 EP 2615308A1 EP 12150970 A EP12150970 A EP 12150970A EP 2615308 A1 EP2615308 A1 EP 2615308A1
Authority
EP
European Patent Office
Prior art keywords
air
slide
charging device
recirculation channel
compressor wheel
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.)
Withdrawn
Application number
EP12150970.7A
Other languages
German (de)
English (en)
Inventor
Kanagaraj Thangavelu
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.)
BMTS Technology GmbH and Co KG
Original Assignee
Bosch Mahle Turbo Systems GmbH and Co KG
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 Bosch Mahle Turbo Systems GmbH and Co KG filed Critical Bosch Mahle Turbo Systems GmbH and Co KG
Priority to EP12150970.7A priority Critical patent/EP2615308A1/fr
Publication of EP2615308A1 publication Critical patent/EP2615308A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/024—Units comprising pumps and their driving means the driving means being assisted by a power recovery turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/023—Details or means for fluid extraction
    • 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
    • F02B37/16—Control of the pumps by bypassing charging air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/40—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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the present invention relates to a charging device, in particular an exhaust gas turbocharger for a combustion engine with the features of the preamble of Claim 1.
  • the invention furthermore relates to a combustion engine with such a charging device.
  • a charging device serves to increase the power of a combustion engine and is thoroughly known.
  • a charging device comprises a compressor wheel subjected to an axial onflow, which compresses and radially displaces the air.
  • the radially displaced air usually enters a spiral housing of the charging device and subsequently the associated combustion engine.
  • the pressure thus established in the compressed air can, under certain conditions, for example when a valve device in the air supply of the combustion engine is closed, reach a value that is greater than the desired or needed pressure. This excess pressure of the air constitutes a major load for the charging device.
  • GB 2 077 354 A proposes a recirculation channel which fluidically connects the spiral housing with a supply to the compressor wheel.
  • a slide is additionally provided, which can close and open the recirculation channel when required, so that with the opened recirculation channel the compressed air can return to the compressor inlet.
  • Disadvantageous here is that even in the opened state of the recirculation channel a part of the air compressed by the compressor can continue to leave the spiral housing and enter the air supply of the associated combustion engine.
  • the present invention deals with the problem of stating an improved embodiment for a charging device of the generic type which is particularly characterized by an improved possibility for the pressure removal of the fluid compressed by a compressor wheel of the charging device.
  • the present invention is based on the general idea of equipping a charging device, particularly an exhaust gas turbocharger for a combustion engine, with an adjusting device and/or designing a recirculation channel of the charging device in such a manner that the adjusting device in a predefined position exclusively supplies the fluid compressed by a compressor wheel of the charging device to the recirculation channel.
  • the adjusting device thus prevents in particular that the fluid compressed by the compressor wheel or by a compressor enters a spiral housing or at least reduces the quantity of the compressed fluid that leaves the charging device or that enters the spiral housing.
  • the charging device comprises the compressor, which includes the compressor wheel, wherein the compressor wheel is subjected to axial onflow.
  • the onflow of the compressor wheel can for example comprise an inlet which axially supplies the fluid to be compressed to the compressor wheel.
  • the fluid to be compressed is generally air so that the term air in the following is used equivalent to the term fluid.
  • the compressor or the compressor wheel can also compress other fluids.
  • the compressor wheel displaces the air in the radial direction.
  • the air displaced in the radial direction and compressed enters the spiral housing from where it can be supplied to an associated combustion engine.
  • the spiral housing can for example comprise a hollow space or an outlet channel or be designed as such.
  • the radial and the axial directions are defined with respect to the rotary axis of the compressor wheel.
  • the axial direction thus runs parallel to the rotary axis of the compressor wheel, while the radial direction runs orthogonally thereto.
  • the compressor or the compressor wheel is drivingly connected to a turbine or to a turbine wheel of the turbine with the help of a shaft, so that the compressor wheel is driven by the turbine wheel.
  • the compressor wheel driven by the turbine thus compresses the air dependent on a rotation of the turbine wheel.
  • the pressure of the air compressed by the compressor wheel can exceed a needed or desired pressure.
  • the adjusting device is now provided which comprises a slide which in a first position closes off the recirculation channel and thus exclusively supplies the compressed air to the spiral housing. This is particularly the case when the pressure in the air compressed by the compressor wheel does not reach the needed or desired pressure.
  • the slide can be slid into a second position, wherein the slide in the second position exclusively supplies the air compressed by the compressor wheel to the recirculation channel, so that the compressed air cannot enter the spiral housing, at least not directly.
  • the recirculation channel thus conducts the compressed air particularly to the inlet of the charging device.
  • the recirculation of the air through the recirculation channel results in that a flow velocity of the air axially flowing onto the compressor wheel decreases, by which the air rate displaced by the compressor wheel is also reduced.
  • the recirculation channel is preferentially formed in a compressor housing of the compressor and/or in the spiral housing.
  • the slide of the adjusting device is preferentially brought into the second position when the pressure of the air in the spiral housing exceeds a desired or required or predefined value.
  • the slide allows in its second position a return flow of air present in the spiral housing into the recirculation channel.
  • the slide and/or the recirculation channel are thus designed or activated in such a manner that the slide in the second position on the one hand exclusively conducts the air delivered by the compressor wheel into the recirculation channel and on the other hand permits the return flow of the air present in the spiral housing.
  • One thus succeeds to efficiently and briskly remove the pressure of the air in the spiral housing if required and simultaneously prevent a flow of air into the spiral housing, provided the pressure in the recirculation channel does not exceed the pressure in the spiral housing.
  • this can be avoided for example through the arrangement of a suitable valve, particularly of a non-return valve.
  • the simultaneous return flow can for example be realised through a return channel that fluidically connects the spiral housing to the recirculation channel, wherein the return channel and the recirculation channel can coincide at least in regions.
  • the return channel directly connects the spiral housing fluidically to the inlet of the charging device, that is without fluidic connection to the recirculation channel.
  • the recirculation channel can annularly surround the compressor wheel.
  • the recirculation channel has a larger volume or a larger cross section, so that the air delivered by the compressor wheel can be better and more efficiently recirculated.
  • said return channel follows an annular course in order to guarantee an improved flow of air present in the spiral housing.
  • the slide is of an annular design.
  • Embodiments are also conceivable, wherein a plurality of slides are provided, which are arranged annularly about the compressor wheel.
  • the annularly designed recirculation channel and/or the annularly designed return channel and/or the annularly designed slide can in particular be broken through or interrupted by the compressor housing.
  • the adjusting device preferentially comprises a safety device, which adjusts the adjusting device or the associated slide in the event of a failure of the adjusting device into the first position.
  • a safety device which adjusts the adjusting device or the associated slide in the event of a failure of the adjusting device into the first position.
  • This safety device can for example be a spring device or designed as spring device, which slides or adjusts the slide into its second position in the event of the failure of the adjusting device.
  • the slide is designed in such a manner and/or arranged in such a manner that it can be adjusted or slid transversely to the flow direction of the air. Because of this, the force required for adjusting the slide and the corresponding loading of the adjusting device, particularly compared to a sliding of the slide parallel to the flow direction, is reduced.
  • the slide can have any size and shape, provided the air compressed by the compressor wheel in the first position of the slide exclusively reaches the spiral housing, while the air displaced or compressed by the compressor wheel in the second position of the slide exclusively reaches the recirculation channel or can flow back from the spiral housing.
  • the slide can have a guiding contour radially directed to the inside, which in the first position closes off the recirculation channel and in the second position diverts the air onflowing from the compressor wheel into the recirculation channel.
  • the guiding contour of the slide is more preferably designed or shaped complementarily to an inlet of the recirculation channel.
  • the slide can be produced of any material. More preferably, the slide can be produced of metal or of a metallic material and/or of plastic. In particular, the slide can have a surface produced from plastic, which in the relevant positions of the slide improves a fluidic sealing with the help of the slide. Analogously to this, the slide can comprise a sealing element which guarantees the sealing property.
  • the recirculation channel can lead into the inlet at any point and in any way.
  • the recirculation channel leads into the feeder parallel to the axis of the compressor or tangentially to the compressor wheel. This in particular results in that a braking of the compressor wheel with the help of the recirculated air does not bring about any abrupt stoppage of the compressor wheel or any unfavourable onflow of the compressor wheel.
  • the slide of the adjusting device is freely slidable between the first position and the second position.
  • the slide can be adjusted into any intermediate position between the first and the second position, so that a metering of the air supplied to the spiral housing and the recirculated air and/or the air returned from the spiral housing is possible.
  • the charging device is arranged in a combustion engine.
  • An air supply of the combustion engine in this case is fluidically connected to the spiral housing, while an exhaust discharge of the combustion engine is fluidically connected to the turbine wheel.
  • a valve device particularly a throttle valve, can be provided, which is more preferably arranged between the spiral housing and the combustion engine, preferentially in the air supply of the combustion engine.
  • the valve device in this case regulates the rate of air to be supplied to the combustion engine.
  • the air displaced by the charging device consequently increases the pressure of the air between the compressor wheel and the valve device.
  • a charging device 1 which can in particular be designed as an exhaust gas turbocharger 1' for a combustion engine, comprises a compressor 2, which is arranged in a compressor housing 3 of the charging device 1.
  • the compressor 2 comprises a compressor wheel 4, which is driveconnected with a turbine wheel of the turbine with the help of a shaft 5.
  • the compressor wheel 4 is surrounded by a spiral housing 6, wherein the spiral housing 6 is formed in the compressor housing 3 of the charging device 1.
  • the spiral housing 6 at its fluidic end distant from the compressor wheel 4 is connected to an associated combustion engine.
  • the charging device 1 additionally comprises a compressor inlet 7 or simply an inlet 7, which axially supplies a fluid, particularly air, to be compressed by the compressor 2, axially to the compressor wheel 4.
  • the axial direction 8 in this case relates to the longitudinal direction of the shaft 5 or to a rotary axis of the compressor wheel 4.
  • a flow path of the air is indicated by arrows 9.
  • the compressor wheel 4 is subjected to axial onflow, wherein the compressor wheel 4 displaces the onflowing air in radial direction into the spiral housing 6 with the help of the drive transmitted by the turbine.
  • the air in the spiral housing 6 can have a pressure that is higher than a permitted or desired or predefined pressure. In this case it is desirable to reduce or to limit the pressure of the air located in the spiral housing 6.
  • the charging device 1 comprises an adjusting device 10, which comprises at least one slide 11, wherein the shown adjusting device 10 merely comprises one such slide 11, which annularly surrounds the compressor wheel 4.
  • a recirculation channel 12 is provided, which fluidically connects the inlet 7 to a radial outlet 13.
  • the slide 11 of the adjusting device 10 is shown in a first position in the view shown in Figure 1 . With this first position of the slide 11, the fluidic connection of the recirculation channel 12 to the radial outlet region 13 is closed off by the slide 11, so that the air radially displaced by the compressor wheel 4 exclusively enters the spiral housing 6.
  • the slide 11 is adjusted into a second position, which is shown in the Figure 2 .
  • the fluidic connection between the radial outlet region 13 and the recirculation channel 12 is opened, so that the air displaced by the compressor wheel 4 exclusively enters the recirculation channel 12. Accordingly, no additional pressure increase of the air present in the spiral housing 6 is affected by this.
  • the air flowing through the recirculation channel 12 thus enters the inlet 7, wherein this recirculated air has a flow direction other than the air flow arriving in the inlet 7 upstream of a junction point 14 of the recirculation channel 12. Accordingly, the airflow arriving upstream of the junction point 14 is braked through the recirculated air, as a result of which an additional reduction of the air displaced by the compressor wheel 4 is achieved.
  • the slide 11 is designed in such a manner that it diverts the air flowing out of the radial outlet point 13 into the recirculation channel 12. To this end, the slide has a corresponding guiding contour 15 radially directed to the inside.
  • a return channel 16 is additionally provided which fluidically connects spiral housing 6 to the recirculation channel 12.
  • the slide 11 is shaped or designed in such a manner that it opens the fluidic connection between the return channel 16 and the recirculation channel 12 in the second position of the slide 11, so that air located in the spiral housing 6 can flow out of the spiral housing 6 through the return channel 16 and via the recirculation channel 12, as a result of which the pressure of the air present in the spiral housing 6 is reduced.
  • the slide 11 in its first position closes off the fluidic connection between the spiral housing 6 and the recirculation channel 12, so that the air present in the spiral housing 6 cannot flow out of the spiral housing 6 via the return channel 16 or via the recirculation channel 12.
  • the adjusting device 10 in this case is able to adjust the slide 11 also in intermediate positions between the first position shown in Figure 1 and the second position shown in Figure 2 , so that a metering of the air displaced by the compressor wheel 4 to the spiral housing 6 or to the recirculation channel 12 is also possible.
  • the adjustment takes place in the manner known per se, wherein the adjusting device 10 in particular can be connected to a control and/or a sensor device, so that the adjusting device 10 can be adjusted dependent on the pressure in the flow path 9 of the air, particularly in the spiral housing 6, and/or dependent on state variables of the associated combustion engine.
  • the adjusting device 10 is designed in such a manner that the slide 11 in the event of a failure of the adjusting device 10 is adjusted to the first position, so that the air displaced by the compressor wheel 4 is conducted into the spiral housing 6.
  • the adjusting device comprises a spring device 17 interacting with the slide 11, which tensions a pin 18 of the adjusting device 12 in axial direction 8.
  • the pin 18, as evident in Figure 1 is arranged in the flow path 9 of the air, wherein the slide 11 on its side facing the pin 18 is designed flat in order to make possible a preferably frictionless flow of the air into the spiral housing 6.
  • the pin 18 In the second position the pin 18 is retracted into a recess 19 in the compressor housing 3, wherein the plane side of the slide 11 facing the pin 18 bears against the compressor housing 3 and closes off the recess 19.
  • the slide 11 is adjusted transversely to the flow direction of the air.
  • the spring device 17 Upon a failure of the adjusting device 10, the spring device 17 thus adjusts the slide 11 into the first position and thus ensures the flow of the compressed air into the spiral housing 6.
  • the sealing function of the recirculation channel 12 or of the return channel 16 shown in Figure 1 can be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Supercharger (AREA)
EP12150970.7A 2012-01-12 2012-01-12 Dispositif de chargement Withdrawn EP2615308A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12150970.7A EP2615308A1 (fr) 2012-01-12 2012-01-12 Dispositif de chargement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12150970.7A EP2615308A1 (fr) 2012-01-12 2012-01-12 Dispositif de chargement

Publications (1)

Publication Number Publication Date
EP2615308A1 true EP2615308A1 (fr) 2013-07-17

Family

ID=45491406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12150970.7A Withdrawn EP2615308A1 (fr) 2012-01-12 2012-01-12 Dispositif de chargement

Country Status (1)

Country Link
EP (1) EP2615308A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150285257A1 (en) * 2010-09-02 2015-10-08 Borgwarner Inc Compressor Recirculation Into Annular Volume
US9157446B2 (en) 2013-01-31 2015-10-13 Danfoss A/S Centrifugal compressor with extended operating range
EP3051143A4 (fr) * 2013-09-27 2017-06-14 IHI Corporation Compresseur centrifuge et surcompresseur
CN107592898A (zh) * 2015-08-11 2018-01-16 宝马股份公司 涡轮增压器的具有空气循环阀的压缩机以及具有这样的压缩机的涡轮增压器和机动车
DE102018209558A1 (de) * 2018-06-14 2019-12-19 BMTS Technology GmbH & Co. KG Radialverdichter
JP2020066993A (ja) * 2018-10-22 2020-04-30 株式会社Ihi 遠心圧縮機
US10962016B2 (en) 2016-02-04 2021-03-30 Danfoss A/S Active surge control in centrifugal compressors using microjet injection
CN116085094A (zh) * 2022-03-14 2023-05-09 盖瑞特动力科技(上海)有限公司 使用二次空气喷射催化处理来自内燃机的排气的方法和系统以及其中使用的二次空气泵

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077354A (en) 1980-05-28 1981-12-16 Nissan Motor Exhaust turbine driven supercharger with compressor bypass arrangement
GB2234295A (en) * 1989-07-21 1991-01-30 Rolls Royce Plc Gas turbine engine compressor assembly
EP1200741B1 (fr) * 1999-07-30 2004-10-20 Honeywell UK LIMITED Turbocompresseur
DE102005062682A1 (de) * 2005-12-23 2007-07-05 Daimlerchrysler Ag Verdichter im Ansaugtrakt einer Brennkraftmaschine und Abgasturbolader für eine Brennkraftmaschine
WO2007098133A1 (fr) * 2006-02-21 2007-08-30 Borgwarner Inc. Carter de compresseur de turbocompresseur avec etrangleur integre et systeme de derivation et de recyclage
DE102006049777A1 (de) * 2006-06-20 2007-12-27 Daimlerchrysler Ag Abgasturbolader für eine Brennkraftmaschine und Brennkraftmaschine
DE102007024584A1 (de) * 2007-05-25 2008-12-04 Audi Ag Vorrichtung zur Aufladung von Brennkraftmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077354A (en) 1980-05-28 1981-12-16 Nissan Motor Exhaust turbine driven supercharger with compressor bypass arrangement
GB2234295A (en) * 1989-07-21 1991-01-30 Rolls Royce Plc Gas turbine engine compressor assembly
EP1200741B1 (fr) * 1999-07-30 2004-10-20 Honeywell UK LIMITED Turbocompresseur
DE102005062682A1 (de) * 2005-12-23 2007-07-05 Daimlerchrysler Ag Verdichter im Ansaugtrakt einer Brennkraftmaschine und Abgasturbolader für eine Brennkraftmaschine
WO2007098133A1 (fr) * 2006-02-21 2007-08-30 Borgwarner Inc. Carter de compresseur de turbocompresseur avec etrangleur integre et systeme de derivation et de recyclage
DE102006049777A1 (de) * 2006-06-20 2007-12-27 Daimlerchrysler Ag Abgasturbolader für eine Brennkraftmaschine und Brennkraftmaschine
DE102007024584A1 (de) * 2007-05-25 2008-12-04 Audi Ag Vorrichtung zur Aufladung von Brennkraftmaschinen

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150285257A1 (en) * 2010-09-02 2015-10-08 Borgwarner Inc Compressor Recirculation Into Annular Volume
US10132324B2 (en) * 2010-09-02 2018-11-20 Borgwarner Inc. Compressor recirculation into annular volume
US10184481B2 (en) 2013-01-31 2019-01-22 Danfoss A/S Centrifugal compressor with extended operating range
US9157446B2 (en) 2013-01-31 2015-10-13 Danfoss A/S Centrifugal compressor with extended operating range
EP3051143A4 (fr) * 2013-09-27 2017-06-14 IHI Corporation Compresseur centrifuge et surcompresseur
US10364818B2 (en) 2013-09-27 2019-07-30 Ihi Corporation Centrifugal compressor and turbocharger
CN107592898A (zh) * 2015-08-11 2018-01-16 宝马股份公司 涡轮增压器的具有空气循环阀的压缩机以及具有这样的压缩机的涡轮增压器和机动车
US20180058309A1 (en) * 2015-08-11 2018-03-01 Bayerische Motoren Werke Aktiengesellschaft Compressor of a Turbocharger Having an Air Recirculation Valve and Turbocharger and Motor Vehicle Having Such a Compressor
US10774731B2 (en) * 2015-08-11 2020-09-15 Bayerische Motoren Werke Aktiengesellschaft Compressor of a turbocharger having an air recirculation valve and turbocharger and motor vehicle having such a compressor
US10962016B2 (en) 2016-02-04 2021-03-30 Danfoss A/S Active surge control in centrifugal compressors using microjet injection
DE102018209558A1 (de) * 2018-06-14 2019-12-19 BMTS Technology GmbH & Co. KG Radialverdichter
US10900496B2 (en) 2018-06-14 2021-01-26 BMTS Technology GmbH & Co. KG Radial compressor
JP2020066993A (ja) * 2018-10-22 2020-04-30 株式会社Ihi 遠心圧縮機
CN116085094A (zh) * 2022-03-14 2023-05-09 盖瑞特动力科技(上海)有限公司 使用二次空气喷射催化处理来自内燃机的排气的方法和系统以及其中使用的二次空气泵

Similar Documents

Publication Publication Date Title
EP2615308A1 (fr) Dispositif de chargement
CN107208538B (zh) 废气涡轮增压器
EP2960526B1 (fr) Compresseur centrifuge avec élément résistif en entrée
EP2110557B1 (fr) Compresseur centrifuge avec le contrôle anti-pompage
CN103032106B (zh) 具有叶片密封装置的涡轮增压器可变喷嘴组件
EP3069089B1 (fr) Système de réfrigération avec compresseur centrifuge
DE102005019896B4 (de) Drallerzeugungseinrichtung
CN106460533B (zh) 用于节约燃料和经由非对称双蜗壳的废气再循环利用的优化脉冲功率分离的双蜗壳涡轮增压器
US20080092538A1 (en) Exhaust gas turbocharger for an internal combustion engine
CN103958854B (zh) 二级增压装置
US20040009061A1 (en) Compressors
AT504368A4 (de) Abgasturbolader für eine brennkraftmaschine
CN101363329A (zh) 具有半分式喷嘴和半圈式活塞的涡轮组件
DE112014004513T5 (de) Steuerung des Kompressorstopfens in einem Turbolader
EP3133289B1 (fr) Turbocompresseur avec compresseur pouvant fonctionner en mode à un seul étage ou en mode série en deux étapes
EP1546524B1 (fr) Dispositif pour comprimer de l'air de combustion avec dispositif de derivation integre
EP2960467B1 (fr) Piquage d'air à basse pression pour système de climatisation d'aéronef
DE112015003981T5 (de) Turbolader
EP3647601A1 (fr) Mécanisme de réglage d'une section d'écoulement d'entrée d'une roue de compresseur d'un turbocompresseur
US20160169093A1 (en) Exhaust-gas turbocharger
CN109306902A (zh) 空气涡轮起动器
US8647503B2 (en) Filter assembly for fuel supply to actuators and fuel control system of aircraft engine and method
DE102011115830B4 (de) Verdichter, insbesondere im Ansaugtrakt einer Brennkraftmaschine
JP2018035806A (ja) Ｖｔｇ内部バイパス
CN107109960B (zh) 在涡轮机械中、尤其压缩机中的导向器的导向叶片的轮廓部

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20131219

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160112

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160524