WO2011061816A1 - 遠心圧縮機及びターボ過給機 - Google Patents
遠心圧縮機及びターボ過給機 Download PDFInfo
- Publication number
- WO2011061816A1 WO2011061816A1 PCT/JP2009/069507 JP2009069507W WO2011061816A1 WO 2011061816 A1 WO2011061816 A1 WO 2011061816A1 JP 2009069507 W JP2009069507 W JP 2009069507W WO 2011061816 A1 WO2011061816 A1 WO 2011061816A1
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- WIPO (PCT)
- Prior art keywords
- movable vane
- centrifugal compressor
- compressor
- diffuser
- chamber
- Prior art date
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Classifications
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- 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
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- 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 centrifugal compressor provided with a retractable movable vane in a diffuser section, and a turbocharger including the centrifugal compressor.
- centrifugal compressor in which a movable vane that is movable between a protruding position that protrudes into a diffuser part and a storage position that is accommodated in a storage chamber provided in a diffuser wall is provided in the diffuser part.
- the accommodation chamber is divided into two spaces by a partition member to which a movable vane is attached, and the movable member is moved into the other space by moving the partition member by a pressure difference between the two spaces and a spring provided in one space.
- a centrifugal compressor that accommodates or projects a movable vane to a diffuser part (see Patent Document 1).
- a storage chamber in which a movable vane is accommodated and a drive mechanism that drives the movable vane are provided on the same diffuser wall. Therefore, one side where the diffuser wall is present may be longer in the direction of the rotation axis of the compressor wheel than the opposite side across the diffuser portion. Further, in this centrifugal compressor, since the movable vane is accommodated in the accommodation chamber and the drive mechanism is provided in the accommodation chamber, the accommodation chamber needs to be larger than the volume of the movable vane by the drive mechanism. For this reason, the housing may be increased in size.
- an object of the present invention is to provide a centrifugal compressor and a turbocharger that are more advantageous for downsizing than conventional ones.
- the centrifugal compressor of the present invention includes a housing that houses a compressor wheel and supports the compressor wheel so as to be rotatable about an axis, a spiral scroll provided on the housing so as to be disposed on the outer periphery of the compressor wheel, A centrifugal compressor provided with a pair of wall portions provided as a passage space leading from the outlet side of the compressor wheel to the scroll and facing each other, of the pair of wall portions, A protruding position that protrudes from one wall portion so as to cross the diffuser portion, and a storage position that is retracted from the protruding position toward the one wall portion side and is accommodated in a storage portion provided on the one wall portion; A movable vane movably provided between the movable vane and a drive for driving the movable vane between the protruding position and the retracted position Further comprising a step, wherein the driving means is provided on the other wall of the pair of wall portions.
- the centrifugal compressor of the present invention since the storage portion is provided in one wall portion and the driving means is provided in the other wall portion, only one of the one wall portion side or the other wall portion side is an axis. It can prevent becoming longer in the direction.
- the volume of the storage unit may be slightly larger than the volume of the movable vane, it is possible to prevent the storage unit from becoming unnecessarily large. Since it can suppress that a housing enlarges by this, a centrifugal compressor can be reduced in size compared with the past.
- the driving means includes a working chamber provided on the other wall portion, a first chamber provided on the diffuser portion side in the working chamber, and the diffuser portion side.
- a partition member provided in a reciprocating manner in the working chamber so as to be divided into a second chamber provided on the opposite side of the opposite diffuser portion, and a through hole provided in the other wall portion.
- a connecting member that connects the partition member and the movable vane so as to operate integrally, and the movable vane so that the partition member moves to either the diffuser portion side or the anti-diffuser portion side.
- a controllable pressure control means the difference between the first chamber pressure and the second chamber pressure to move the displacement or other side may be provided with a.
- the other wall portion may be provided with a through hole for passing the connecting member.
- the cross-sectional area of a connection member may be smaller than a movable vane, the magnitude
- the gap formed between the connecting member and the other wall portion can be reduced, foreign matter can be prevented from entering the working chamber. Therefore, it is possible to suppress the occurrence of an abnormality such as the partition member being unable to move. Moreover, since the volume of a working chamber can be made small compared with the centrifugal compressor which accommodates a movable vane in a working chamber, it can further suppress that a housing enlarges. Therefore, the centrifugal compressor can be further downsized.
- the other wall portion is provided with a partition wall member that has the through hole and is disposed between the diffuser portion and the working chamber and partitions the working chamber and the diffuser portion. May be.
- the partition member can be removed from the other wall portion, components such as a partition member can be easily placed in the working chamber. Therefore, it is easy to assemble the centrifugal compressor and work efficiency can be improved.
- the movable vane may be in contact with the partition member at the protruding position, and at least a portion of the partition member in contact with the movable vane may be made of an elastic body.
- the movable vane and the partition member are brought into contact with each other, it is possible to prevent abnormal noise from being generated.
- the movable vane and the partition member come into contact with each other, it is possible to prevent the movable vane from being worn or damaged.
- the clearance gap between the movable vane of a protrusion position and the other wall part can be eliminated by making a movable vane and a partition member contact.
- the gas discharged from the compressor wheel can be reliably guided between the movable vanes, the efficiency of the centrifugal compressor when the movable vanes are moved to the protruding position can be improved. Further, by bringing the movable vane and the other wall portion into contact with each other at the protruding position in this way, it is possible to prevent the position of the movable vane at the protruding position from varying from product to product. Therefore, it is possible to suppress variation in performance between products.
- the movable vane is provided with a shaft member extending from the movable vane toward the one wall portion so as to be parallel to the moving direction of the movable vane.
- a support hole that slidably supports the shaft member may be provided in the wall portion.
- the spring means may be provided on the other wall portion.
- the working chamber can be further reduced. Therefore, the centrifugal compressor can be further downsized.
- the driving means provided in the centrifugal compressor of the present invention may be capable of driving the movable vane between the protruding position and the storage position.
- the drive means includes an electric motor, and a cam mechanism that converts the rotational motion of the output shaft of the electric motor into a linear motion so that the movable vane is driven between the protruding position and the retracted position; May be provided.
- the drive means includes a position switching member having an inclined surface extending in a direction inclined with respect to a moving direction of the movable vane, and a transmission member extending from the movable vane is in contact with the inclined surface; And an electric motor that drives the position switching member so that the inclined surface moves in a direction orthogonal to the moving direction of the movable vane. In this way, the movable vane may be driven by the electric motor.
- the turbocharger of the present invention includes the above-described centrifugal compressor and a turbine, wherein the centrifugal compressor is provided in an intake passage of the internal combustion engine and the turbine is provided in an exhaust passage of the internal combustion engine, Exhaust energy of the internal combustion engine is recovered by a turbine, and the internal combustion engine is supercharged by rotationally driving the compressor wheel of the centrifugal compressor with the recovered exhaust energy.
- the turbocharger of the present invention since the centrifugal compressor described above is provided, the housing of the centrifugal compressor can be prevented from becoming large. Therefore, the turbocharger can be made smaller than before.
- the figure which expands and shows the movable vane mechanism of FIG. The figure which shows an example of the cross section of the connection member of FIG.
- the figure which shows the other example of the cross section of the connection member of FIG. The figure which shows the centrifugal compressor which concerns on the 2nd form of this invention.
- FIG. 1 shows a turbocharger equipped with a centrifugal compressor according to the first embodiment of the present invention.
- the turbocharger 1 is for supercharging an internal combustion engine mounted on a vehicle.
- the turbocharger 1 includes a turbine (not shown) provided in an exhaust passage of the internal combustion engine and a centrifugal compressor (hereinafter sometimes referred to as a compressor) 10A provided in an intake passage of the internal combustion engine.
- the exhaust energy of the internal combustion engine is recovered, and the compressor 10A is driven by the recovered exhaust energy.
- the compressor 10A includes a housing 11 and a compressor wheel 13 that is accommodated in the housing 11 and supported by the rotary shaft 12 so as to be rotatable about the axis Ax.
- the housing 11 includes a wheel chamber 14 that accommodates the compressor wheel 13, a spiral scroll 15 provided on the outer periphery of the wheel chamber 14, and a diffuser provided as a passage space that leads from the outlet side 13 a of the compressor wheel 13 to the scroll 15.
- Part 16 The compressor wheel 13 is connected to a turbine wheel (both not shown) of the turbine so as to rotate integrally with the rotating shaft 12.
- the housing 11 includes a center housing 17 that rotatably supports the rotary shaft 12, and a compressor housing 18 that is attached to the center housing 17 and forms a wheel chamber 14, a diffuser portion 16, and a scroll 15. Since these portions may be the same as those of a known turbocharger compressor, detailed description thereof is omitted.
- the movable vane mechanism 20 is provided in the compressor 10A.
- the movable vane mechanism 20 includes a plurality of movable vanes 21 (only one is shown in FIG. 1) and an actuator 22 as a driving unit that drives each movable vane 21.
- Each movable vane 21 extends in the axis Ax direction between a projecting position P1 projecting from the compressor housing 18 so as to cross the diffuser section 16 and a storage position P2 accommodated in a storage section 23 provided in the compressor housing 18.
- Each is provided so as to be movable.
- the plurality of movable vanes 21 are provided in the diffuser portion 16 so as to be arranged at equal intervals around the axis Ax at the protruding position P1.
- the storage portion 23 is provided in the compressor housing 18 so as to be recessed in the axial direction from the wall surface 18a forming the diffuser portion 16.
- the diffuser portion 16 is formed of a compressor housing 18 and a center housing 17.
- the storage unit 23 is provided in the compressor housing 18, and the actuator 22 is provided in the center housing 17. Therefore, the compressor housing 18 corresponds to one wall portion of the present invention, and the center housing 17 corresponds to the other wall portion of the present invention.
- the actuator 22 includes a working chamber 24 provided in the center housing 17.
- the working chamber 24 is formed over the entire circumference around the axis Ax.
- the working chamber 24 is provided with a partition member 27 provided so as to reciprocate in the axis Ax direction within the working chamber 24 so as to divide the inside into a first chamber 25 and a second chamber 26.
- the partition member 27 and the movable vane 21 are connected by a connecting member 28 so as to operate integrally.
- the connecting member 28 connects the partition member 27 and the movable vane 21 via a through hole 17 a provided in the center housing 17.
- the cross-section of the connecting member 28 may be circular as shown in FIG. 3A, or may be a wing shape as shown in FIG. 3B.
- the connecting member 28 should be disposed so that one end to be arranged upstream of the flow faces the compressor wheel 13 and the other end faces the scroll 15 so as not to obstruct the gas flow in the diffuser section 16.
- the through hole 17 a is provided so that its cross-sectional area has the same shape as the cross-sectional area of the connecting member 28.
- the first chamber 25 is provided on the diffuser part side (left side in the figure) where the diffuser part 16 is located, and the second chamber 26 is on the side opposite to the diffuser part (right side in the figure) opposite to the diffuser part side. Is provided.
- the first chamber 25 is open to the atmosphere through an open hole 25a.
- the second chamber 26 is connected to a negative pressure source capable of lowering the pressure in the second chamber 26 via a pressure adjustment passage 29.
- the pressure adjustment passage 29 is provided with a valve 30 that can open and close the pressure adjustment passage 29.
- the second chamber 26 is provided with a compression spring 31 that pushes the partition member 27 toward the diffuser portion (left side in the drawing) so that the movable vane 21 moves to the storage position P2.
- the actuator 22 when the valve 30 is opened to reduce the pressure in the second chamber 26, a pressure difference is generated between the first chamber 25 and the second chamber 26.
- This pressure difference moves the partition member 27 to the side opposite to the diffuser part against the compression spring 31.
- the movable vane 21 moves to the protruding position.
- the valve 30 when the valve 30 is closed, the pressure in the second chamber 26 is increased and the pressure difference between the first chamber 25 and the second chamber 26 is reduced, so that the partition member 27 is moved to the diffuser portion side by the compression spring 31.
- the movable vane 21 moves to the storage position.
- the valve 30 functions as the pressure control means of the present invention by controlling the pressure difference between the first chamber 25 and the second chamber 26 in this way.
- the storage portion 23 for accommodating the movable vane 21 is provided in the compressor housing 18 and the actuator 22 is provided in the center housing 17, only one side of the diffuser portion 16 has an axis line. It can prevent becoming long in the Ax direction. Further, since the volume of the storage unit 23 may be slightly larger than the volume of the movable vane 21, it is possible to prevent the storage unit 23 from becoming unnecessarily large. Furthermore, the volume of the working chamber 24 can be reduced as compared with the case where the movable vane 21 is accommodated in the working chamber 24. As a result, the housing 11 can be prevented from becoming large, and the compressor 10A can be downsized.
- the cross-sectional area of the through hole 17a provided in the center housing 17 can be reduced.
- part of the exhaust gas in the intake passage is recirculated or blow-by gas is introduced.
- the exhaust gas contains particulate matter
- the blow-by gas contains oil. Therefore, these particulate matter and oil flow into the compressor 10A.
- the cross-sectional area of the through hole 17a can be reduced, it is possible to sufficiently suppress the particulate matter and oil from entering the working chamber 24 through the gap between the through hole 17a and the connecting member 28. Therefore, it can suppress that the compression spring 32 deteriorates or the partition member 27 adheres with these particulate matter and oil.
- FIG. 10B (Second form) A compressor 10B according to a second embodiment of the present invention will be described with reference to FIG. In addition, in this figure, a part of cross section of the compressor 10B is shown. Further, in this embodiment, the same reference numerals are given to portions common to the first embodiment, and description thereof is omitted.
- the center housing 17 is provided with an operation hole 41 that becomes the operation chamber 24.
- the operation hole 41 is provided so as to open to the diffuser portion 16.
- a bushing 42 as a partition member is attached to the working hole 41 so as to close the opening of the hole 41, thereby forming a working chamber 24.
- the bushing 42 is attached to the center housing 17 so that the wall surface forming the diffuser portion 16 is not uneven. As described above, the bushing 42 is disposed between the diffuser portion 16 and the working chamber 24 to partition the diffuser portion 16 and the working chamber 24. As shown in this figure, the through hole 17 a is provided in the bushing 42.
- the working chamber 24 can be opened by removing the compressor housing 18 and the bushing 42, respectively. Therefore, components such as a partition member and a compression spring can be easily placed in the working chamber 24. As a result, the compressor 10B can be easily assembled and work efficiency can be improved.
- FIG. 10C A compressor 10C according to a third embodiment of the present invention will be described with reference to FIG.
- the same reference numerals are given to the portions common to the other embodiments described above, and the description is omitted.
- the third embodiment is different in that the working chamber 41 is formed by closing the working hole 41 with a bushing 51 larger than the movable vane 21.
- the movable vane 21 contacts the center housing 17 at the protruding position P1.
- the bushing 51 is made of an elastic body such as rubber. Further, the bushing 51 is provided so that the entire end surface of the movable vane 21 on the center housing 17 side comes into contact with the bushing 51 when the movable vane 21 moves to the protruding position P1.
- the compressor 10C of the third embodiment it is possible to prevent abnormal noise from being generated even when the movable vane 21 and the bushing 51 come into contact with each other. Further, even when the movable vane 21 and the bushing 51 come into contact with each other, the movable vane 21 can be prevented from being worn or damaged.
- the movable vane 21 since the movable vane 21 contacts the bushing 51 at the protruding position P1, there is no gap between the movable vane 21 and the bushing 51. In this case, since the gas discharged from the compressor wheel 13 can be reliably guided between the movable vanes, the efficiency of the compressor 10C when the movable vane 21 is moved to the protruding position P1 can be improved.
- the position of the movable vane 21 at the protruding position P1 can be prevented from varying from product to product. Therefore, it is possible to suppress variation in performance for each product.
- FIG. 10D A compressor 10D according to a fourth embodiment of the present invention will be described with reference to FIG.
- a part of cross section of compressor 10D is shown.
- the same reference numerals are given to the portions common to the other embodiments described above, and the description is omitted.
- the support shaft 61 as a shaft member extended toward the compressor housing 18 side from the movable vane 21 is provided.
- the support shaft 61 is provided on the movable vane 21 so as to be coaxial with the connecting member 28.
- the compressor housing 18 is provided with a support hole 62 that slidably supports the support shaft 61.
- the movable vane 21 is supported by both the center housing 17 and the compressor housing 18. That is, the movable vane 21 is supported at both ends.
- the friction between the connecting member 28 and the center housing 17 can be reduced. Therefore, it is possible to reduce the driving force required to drive the movable vane 21 from the storage position P2 to the protruding position P1. Therefore, the actuator 22 can be reduced in size. As a result, the compressor 10D can be further downsized. Further, wear of the connecting member 28 and the center housing 17 can be suppressed by reducing the friction in this way.
- a compressor 10E according to a fifth embodiment of the present invention will be described with reference to FIG.
- a part of cross section of the compressor 10E is shown.
- the same reference numerals are given to the portions common to the other embodiments described above, and the description is omitted.
- the fifth embodiment differs from the other embodiments described above in that a compression spring 71 is provided in the storage portion 23 instead of the compression spring 31 of the second chamber 26.
- the compression spring 71 pushes the movable vane 21 toward the center housing 17 so that the movable vane 21 moves from the storage position P2 to the protruding position P1.
- the second chamber 26 of the actuator 22 is connected via a pressure adjusting passage 29 and a pressurizing source capable of increasing the pressure in the second chamber 26 from the atmospheric pressure.
- the valve 30 when the valve 30 is opened and the pressure in the second chamber 26 becomes higher than the atmospheric pressure, the partition member 27 moves to the diffuser portion side due to the pressure difference between the first chamber 25 and the second chamber 26. . As a result, the movable vane 21 is moved to the storage position P2.
- the valve 30 is closed, the pressure difference between the first chamber 25 and the second chamber 26 is reduced, so that the movable vane 21 is moved to the protruding position P1 by the compression spring 71.
- the compression spring 71 is provided on the compressor housing 18 side, the working chamber 24 can be further reduced. Therefore, the compressor 10E can be further downsized.
- the present invention can be implemented in various forms without being limited to the above-described forms. For example, you may combine each form mentioned above in the range which does not interfere mutually. For example, the third form and the fourth form may be combined, and the third form, the fourth form, and the fifth form may be combined.
- the actuator is provided in the center housing and the storage portion is provided in the compressor housing.
- the arrangement of the actuator and the storage portion may be reversed. That is, the storage portion may be provided in the center housing, and the actuator may be provided in the compressor housing.
- the several movable vane was driven with the common actuator, you may provide an actuator for every movable vane.
- the driving means for driving the movable vane is not limited to one that generates a driving force using a pressure difference, and various driving devices capable of reciprocating the movable vane may be used.
- the movable vane may be driven using an electric motor.
- a cam 82 is provided on the output shaft 81 a of the electric motor 81.
- the movable vane 21 may be driven by switching the position of the cam 82 with the electric motor 81.
- a wedge-shaped position switching member 91 having an inclined surface 91a extending in a direction inclined with respect to the moving direction of the movable vane 21 is provided.
- the movable vane 21 may be driven by moving to.
- FIG. 8 In addition, what is necessary is just to round the part which contacts the position switching member 91 among the connection members 28.
- a gear 92a is provided on the output shaft of the electric motor 92, and the position switching member 91 is driven by the gear 92a.
- the electric motor 81 and the cam 82 correspond to the drive means of the present invention
- the position switching member 91 and the electric motor 92 correspond to the drive means of the present invention.
- the connecting member 28 corresponds to the transmission member of the present invention.
- the movable vane and the drive mechanism of the movable vane of the present invention may be provided in a turbocharger turbine.
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Abstract
Description
図1は、本発明の第1の形態に係る遠心圧縮機を備えたターボ過給機を示している。なお、この図では遠心圧縮機の断面の一部が示されている。このターボ過給機1は、車両に搭載される内燃機関を過給するためのものである。ターボ過給機1は、内燃機関の排気通路に設けられる不図示のタービンと、内燃機関の吸気通路に設けられる遠心圧縮機(以下、コンプレッサと称することもある。)10Aとを備え、タービンで内燃機関の排気エネルギを回収してその回収した排気エネルギでコンプレッサ10Aを駆動するように構成されている。
図4を参照して本発明の第2の形態に係るコンプレッサ10Bを説明する。なお、この図ではコンプレッサ10Bの断面の一部を示す。また、この形態において第1の形態と共通の部分には同一の符号を付して説明を省略する。この図に示したように第2の形態では、センタハウジング17に作動室24となる作動穴41が設けられている。作動穴41は、ディフューザ部16に開口するように設けられている。作動穴41には、その穴41の開口部を塞ぐように隔壁部材としてのブッシング42が取り付けられ、これにより作動室24が形成されている。この図に示したようにブッシング42は、ディフューザ部16を形成する壁面に凹凸が生じないようにセンタハウジング17に取り付けられている。このようにブッシング42は、ディフューザ部16と作動室24との間に配置されて、ディフューザ部16と作動室24とを仕切っている。この図に示したように貫通孔17aは、このブッシング42に設けられている。
図5を参照して本発明の第3の形態に係るコンプレッサ10Cを説明する。なお、この図ではコンプレッサ10Cの断面の一部を示す。また、この形態において上述した他の形態と共通の部分には同一の符号を付して説明を省略する。この図に示したように第3の形態では、可動ベーン21よりも大きいブッシング51で作動穴41を塞いで作動室24を形成する点が異なる。また、この形態では、可動ベーン21は、突出位置P1においてセンタハウジング17に接触する。ブッシング51は、ゴム等の弾性体製である。また、ブッシング51は、可動ベーン21が突出位置P1に移動したときにその可動ベーン21のセンタハウジング17側の端面の全部がブッシング51と接触するように設けられている。
図6を参照して本発明の第4の形態に係るコンプレッサ10Dを説明する。なお、この図ではコンプレッサ10Dの断面の一部を示す。また、この形態において上述した他の形態と共通の部分には同一の符号を付して説明を省略する。この図に示したように第4の形態では、可動ベーン21からコンプレッサハウジング18側に向かって延びる軸部材としての支持軸61が設けられている。この支持軸61は、連結部材28と同軸になるように可動ベーン21に設けられている。コンプレッサハウジング18には、この支持軸61をスライド可能に支持する支持穴62が設けられている。この形態では、可動ベーン21がセンタハウジング17及びコンプレッサハウジング18の両方のハウジングに支持されている。すなわち、可動ベーン21が両持ち支持されている。
図7を参照して本発明の第5の形態に係るコンプレッサ10Eを説明する。なお、この図ではコンプレッサ10Eの断面の一部を示す。また、この形態において上述した他の形態と共通の部分には同一の符号を付して説明を省略する。この図に示したように第5の形態では、第2室26の圧縮バネ31の代わりに格納部23内に圧縮バネ71が設けられている点が上述した他の形態と異なる。この圧縮バネ71は、可動ベーン21が格納位置P2から突出位置P1に移動するように可動ベーン21をセンタハウジング17側に押している。また、この形態では、アクチュエータ22の第2室26は第2室26内の圧力を大気圧よりも上昇させることが可能な加圧源と圧力調整通路29を介して接続されている。そして、この形態では、バルブ30が開けられて第2室26の圧力が大気圧より高くなると第1室25と第2室26との間の圧力差で仕切り部材27がディフューザ部側に移動する。そして、これにより可動ベーン21が格納位置P2に動かされる。一方、バルブ30が閉じられると第1室25と第2室26との間の圧力差が小さくなるので、可動ベーン21は圧縮バネ71によって突出位置P1に移動する。
Claims (9)
- コンプレッサホイールを内部に収容するとともに軸線回りに回転自在に支持するハウジングと、前記コンプレッサホイールの外周に配置されるように前記ハウジングに設けられた渦巻き状のスクロールと、前記コンプレッサホイールの出口側から前記スクロールに通じる通路空間として設けられ、かつ互いに対向する一対の壁部にて形成されたディフューザ部と、を備えた遠心圧縮機において、
前記一対の壁部のうちの一方の壁部から前記ディフューザ部を横切るように突出する突出位置と前記突出位置よりも前記一方の壁部側に後退して前記一方の壁部に設けられた格納部内に収容される格納位置との間で移動可能に設けられた可動ベーンと、前記可動ベーンを前記突出位置と前記格納位置との間で駆動する駆動手段と、をさらに備え、
前記駆動手段は、前記一対の壁部のうちの他方の壁部に設けられている遠心圧縮機。 - 前記駆動手段は、前記他方の壁部に設けられた作動室と、前記作動室内を前記ディフューザ部側に設けられた第1室と前記ディフューザ部側に対して反対側の反ディフューザ部側に設けられた第2室とに区分するように前記作動室内に往復動自在に設けられた仕切り部材と、前記他方の壁部に設けられた貫通孔を介して前記仕切り部材と前記可動ベーンとを一体に動作するように連結する連結部材と、前記仕切り部材が前記ディフューザ部側又は前記反ディフューザ部側のいずれか一方の側に移動するように前記可動ベーン及び前記仕切り部材の少なくともいずれか一方を前記一方の側に押すバネ手段と、前記仕切り部材が前記バネ手段に抗して前記ディフューザ部側又は前記反ディフューザ部側のいずれか他方の側に移動するように前記第1室の圧力と前記第2室の圧力との差を制御可能な圧力制御手段と、を備えている請求項1に記載の遠心圧縮機。
- 前記他方の壁部には、前記貫通孔を有し、かつ前記ディフューザ部と前記作動室との間に配置されて前記作動室と前記ディフューザ部とを仕切る隔壁部材が設けられている請求項2に記載の遠心圧縮機。
- 前記可動ベーンは、前記突出位置において前記隔壁部材と接触し、
前記隔壁部材は、少なくとも前記可動ベーンが接触する部分が弾性体製である請求項3に記載の遠心圧縮機。 - 前記可動ベーンには、前記可動ベーンから前記一方の壁部に向かって前記可動ベーンの移動方向と平行になるように延びる軸部材が設けられ、
前記一方の壁部には、前記軸部材をスライド可能に支持する支持穴が設けられている請求項2~4に記載の遠心圧縮機。 - 前記バネ手段が前記他方の壁部に設けられている請求項2~5のいずれか一項に記載の遠心圧縮機。
- 前記駆動手段は、電動モータと、前記可動ベーンが前記突出位置と前記格納位置との間で駆動されるように前記電動モータの出力軸の回転運動を直線運動に変換するカム機構と、を備えている請求項1に記載の遠心圧縮機。
- 前記駆動手段は、前記可動ベーンの移動方向に対して傾斜する方向に延びる傾斜面を有し、かつ前記可動ベーンから延びる伝達部材が前記傾斜面と接するように設けられた位置切替部材と、前記傾斜面が前記可動ベーンの移動方向と直交する方向に移動するように前記位置切替部材を駆動する電動モータと、を備えている請求項1に記載の遠心圧縮機。
- 請求項1~8のいずれか一項に記載の遠心圧縮機と、タービンと、を備え、
前記遠心圧縮機が内燃機関の吸気通路に設けられるとともに前記タービンが前記内燃機関の排気通路に設けられ、
前記タービンで前記内燃機関の排気エネルギを回収し、回収した排気エネルギで前記遠心圧縮機の前記コンプレッサホイールを回転駆動して前記内燃機関を過給するターボ過給機。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN200980162348.8A CN102597532B (zh) | 2009-11-17 | 2009-11-17 | 离心压缩机以及涡轮增压器 |
EP09851438.3A EP2503158B1 (en) | 2009-11-17 | 2009-11-17 | Centrifugal compressor and turbocharger |
JP2011541751A JP5365699B2 (ja) | 2009-11-17 | 2009-11-17 | 遠心圧縮機及びターボ過給機 |
PCT/JP2009/069507 WO2011061816A1 (ja) | 2009-11-17 | 2009-11-17 | 遠心圧縮機及びターボ過給機 |
US13/508,085 US8689552B2 (en) | 2009-11-17 | 2009-11-17 | Centrifugal compressor and turbocharger |
Applications Claiming Priority (1)
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PCT/JP2009/069507 WO2011061816A1 (ja) | 2009-11-17 | 2009-11-17 | 遠心圧縮機及びターボ過給機 |
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WO2011061816A1 true WO2011061816A1 (ja) | 2011-05-26 |
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PCT/JP2009/069507 WO2011061816A1 (ja) | 2009-11-17 | 2009-11-17 | 遠心圧縮機及びターボ過給機 |
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Country | Link |
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US (1) | US8689552B2 (ja) |
EP (1) | EP2503158B1 (ja) |
JP (1) | JP5365699B2 (ja) |
CN (1) | CN102597532B (ja) |
WO (1) | WO2011061816A1 (ja) |
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WO2014012725A1 (de) * | 2012-07-16 | 2014-01-23 | Siemens Aktiengesellschaft | Paralleldiffusor für eine fluidmaschine |
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JP5344082B2 (ja) * | 2010-03-18 | 2013-11-20 | トヨタ自動車株式会社 | 遠心圧縮機及びターボ過給機 |
DE102012217381A1 (de) * | 2012-09-26 | 2014-03-27 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Radialverdichter für einen Abgasturbolader |
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JP6256142B2 (ja) * | 2014-03-26 | 2018-01-10 | 株式会社豊田自動織機 | 遠心圧縮機 |
DE102015005131A1 (de) * | 2015-04-22 | 2016-10-27 | Daimler Ag | Verdichter für einen Abgasturbolader |
DE102015119098B4 (de) * | 2015-11-06 | 2019-03-21 | Pierburg Gmbh | Regelanordnung für eine mechanisch regelbare Kühlmittelpumpe einer Verbrennungskraftmaschine |
US10544808B2 (en) * | 2018-02-28 | 2020-01-28 | Garrett Transportation I Inc. | Turbocharger compressor having adjustable trim mechanism including vortex reducers |
US11466698B2 (en) * | 2018-07-30 | 2022-10-11 | Danfoss A/S | Electromechanical actuators for refrigerant flow control |
CN109356886A (zh) * | 2018-12-17 | 2019-02-19 | 珠海格力电器股份有限公司 | 离心式压缩机及扩压器装置 |
US11773870B1 (en) | 2022-09-12 | 2023-10-03 | Hamilton Sundstrand Corporation | Variable channel diffuser |
US11873839B1 (en) * | 2022-09-12 | 2024-01-16 | Hamilton Sundstrand Corporation | Variable vaneless diffuser with moving floor |
US11885352B1 (en) * | 2022-09-12 | 2024-01-30 | Hamilton Sundstrand Corporation | Variable channel diffuser with moving floor |
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Also Published As
Publication number | Publication date |
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JP5365699B2 (ja) | 2013-12-11 |
EP2503158B1 (en) | 2014-12-31 |
US20120230817A1 (en) | 2012-09-13 |
JPWO2011061816A1 (ja) | 2013-04-04 |
EP2503158A1 (en) | 2012-09-26 |
EP2503158A4 (en) | 2014-01-22 |
CN102597532B (zh) | 2014-09-17 |
CN102597532A (zh) | 2012-07-18 |
US8689552B2 (en) | 2014-04-08 |
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