WO2021038737A1 - Carter de compresseur, surcompresseur et procédé de fabrication de carter de compresseur - Google Patents

Carter de compresseur, surcompresseur et procédé de fabrication de carter de compresseur Download PDF

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Publication number
WO2021038737A1
WO2021038737A1 PCT/JP2019/033621 JP2019033621W WO2021038737A1 WO 2021038737 A1 WO2021038737 A1 WO 2021038737A1 JP 2019033621 W JP2019033621 W JP 2019033621W WO 2021038737 A1 WO2021038737 A1 WO 2021038737A1
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WO
WIPO (PCT)
Prior art keywords
wall surface
piece
outer peripheral
compressor housing
scroll
Prior art date
Application number
PCT/JP2019/033621
Other languages
English (en)
Japanese (ja)
Inventor
健一郎 岩切
Original Assignee
三菱重工エンジン＆ターボチャージャ株式会社
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 三菱重工エンジン＆ターボチャージャ株式会社 filed Critical 三菱重工エンジン＆ターボチャージャ株式会社
Priority to JP2021541856A priority Critical patent/JPWO2021038737A1/ja
Priority to PCT/JP2019/033621 priority patent/WO2021038737A1/fr
Publication of WO2021038737A1 publication Critical patent/WO2021038737A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00

Definitions

  • the compressor housing according to the present disclosure is A compressor housing formed by combining multiple piece parts. Inside the compressor housing, an intake flow path for introducing a gas into the impeller from the outside of the compressor housing and a scroll flow path for guiding the gas passing through the impeller to the outside are formed.
  • the above compressor housing A scroll piece including a one-side wall surface forming portion forming a wall surface on one side in the axial direction of the scroll flow path, and A wall surface on the other side in the axial direction and the outer peripheral side of the scroll flow path is formed, and the end portion on the one side in the axial direction is fitted with the outer peripheral end portion of the one side wall surface forming portion.
  • a section and an intake introduction section including a shroud section having a shroud surface that is convexly curved so as to face the impeller blades of the impeller.
  • Either one of the scroll piece and the inner peripheral annular piece was integrally formed with the intake air introduction portion.
  • a compressor housing capable of reducing the weight
  • the turbocharger 1 includes a turbocharger 1A for an automobile.
  • the turbocharger 1A includes the above-mentioned impeller 11, the above-mentioned compressor housing 3, the turbine wheel 12, the turbine housing 13 configured to accommodate the turbine wheel 12, and the rotary shaft 14.
  • a bearing 15 that rotatably supports the rotary shaft 14 and a bearing housing 16 that is configured to accommodate the bearing 15 are provided.
  • FIG. 2 is a schematic cross-sectional view schematically showing a compressor side of a supercharger including a compressor housing according to an embodiment, and is a schematic cross-sectional view including an axis of the compressor housing.
  • FIG. 3 is a schematic cross-sectional view of the compressor housing according to the embodiment, wherein the scroll piece is integrally formed with the intake intake portion.
  • FIG. 4 is a schematic cross-sectional view of the compressor housing according to the embodiment, wherein the inner peripheral annular piece is integrally formed with the intake air introduction portion.
  • the connecting portion 42 connecting the outer peripheral annular piece 6 and the inner peripheral annular piece 7 is shown together. The connecting portion 42 is cut and removed from the outer peripheral annular piece 6 and the inner peripheral annular piece 7 in the cutting step S103 described later.
  • the outer peripheral side wall surface forming portion 61 is formed in an annular shape, the other side X2, and the above-mentioned wall surface 62 that is concavely curved toward the outside in the radial direction, and the above-mentioned wall surface 62 in the axial direction.
  • the outer wall surface 64 is located on the opposite side (the other side X2) in X, and has an outer wall surface 64 that is convexly curved to the other side X2.
  • Each of the wall surface 62 and the outer wall surface 64 gradually extends to one side X1 toward the outer side in the radial direction.
  • the wall surface 62 includes a wall surface 621 connected to the wall surface 522 described above.
  • One of the portions includes at least one outer peripheral fitting recess 36 configured to fit the other radially inward.
  • the scroll piece 5 and the integral piece 41 are fitted, and in the subsequent cutting step S103, the integral piece 41 is cut and separated into the outer peripheral annular piece 6 and the inner peripheral annular piece 7. Is done. Therefore, as compared with the case where the three piece parts 4 are assembled separately, the piece parts 4 can be easily assembled, so that the productivity can be improved.
  • the compressor housing 3 according to the present disclosure may be manufactured by a method other than the manufacturing method 100 described above. Further, in the manufacturing method 100 described above, each of the plurality of piece parts 4 (scroll piece 5, outer peripheral annular piece 6 and inner peripheral annular piece 7) is molded by die casting, but some other embodiments. Then, the shape of each of the plurality of piece parts 4 may be formed by a method other than die casting.
  • the wall surface 721 (third wall surface) is located on the downstream side of the wall surface 521 (fourth wall surface) in the gas flow direction, the wall surface 721 (third wall surface) is in the radial direction with respect to the wall surface 521 (fourth wall surface). By suppressing the protrusion inward, it is possible to suppress an increase in the pressure loss of the gas flowing through the scroll flow path 34.
  • FIG. 8 is a schematic cross-sectional view of the compressor housing according to the embodiment and includes the reinforcing ribs.
  • the compressor housing 3 described above further comprises at least one reinforcing rib 91 projecting from the outer wall surface 822 of the shroud portion 82 described above.
  • the shroud portion 82 can be made thinner and lighter.
  • the one side wall surface forming portion 51 of the scroll piece 5 has a different axial position of the outer wall surface 55 (the portion of the most one side X1) for each position in the circumferential direction.
  • the compressor housing 3 has a plurality of pedestals 95 (first pedestal portion 95A and first pedestal portion 95A) configured so as to project from the outer wall surface 55 of the one side wall surface forming portion 51 to one side X1 in the axial direction X. It is equipped with two pedestals 95B).
  • the wall thickness T1 is configured to be thicker than the wall thickness T2. Note that, for example, as shown in FIG. 12, the wall thickness T1 may be configured to be thinner than the wall thickness T2.
  • the present disclosure is not limited to the above-described embodiment, and includes a modification of the above-described embodiment and a combination of these embodiments as appropriate.
  • the turbocharger 1A has been exemplified as the supercharger 1, but the present disclosure can also be applied to an electrically assisted supercharger having a built-in motor and a hybrid supercharger having a generator. .. Further, the present disclosure is not limited to the turbocharger 1A described above, but is also applied to a mechanical supercharger (supercharger) in which a compressor is driven by power taken out from an output shaft of an internal combustion engine via a belt or the like. Can be done.
  • the compressor housing (3) is A compressor housing (3) formed by combining a plurality of piece parts (4). Inside the compressor housing (3), an intake flow path (33) for introducing gas into the impeller (11) from the outside of the compressor housing (3) and the gas that has passed through the impeller (11) are externally introduced. A scroll flow path (34) leading to is formed.
  • the compressor housing (3) is The scroll piece (5) including the one side wall surface forming portion (51) forming the wall surface (52) on one side (X1) of the scroll flow path (34) in the axial direction.
  • the compressor housing includes a scroll piece, an outer peripheral annular piece, an inner peripheral annular piece, and an intake intake introduction portion, and the scroll piece or the inner circumference annular piece is integrated with the intake intake introduction portion. Is formed. That is, the compressor housing is formed by combining three piece parts (scroll piece, outer ring piece and inner ring piece).
  • the wall surface of the scroll flow path is formed by one side wall surface forming portion of the scroll piece, the outer peripheral side wall surface forming portion of the outer peripheral annular piece, and the inner peripheral side wall surface forming portion of the inner peripheral annular piece.
  • the compressor housing (3) according to any one of 1) to 4) above.
  • the wall surface (522) on the radial outer side of the one side wall surface forming portion (51) is recessed radially outward from the wall surface (621) on one side in the axial direction of the outer peripheral side wall surface forming portion (61). Configured or
  • the wall surface (721) on one side of the inner peripheral side wall surface forming portion (71) in the axial direction is radially inside the wall surface (521) on the radial inside of the one side wall surface forming portion (51). It was configured to be dented.
  • the compressor housing (3) according to any one of 1) to 5) above is At least one reinforcing rib (91) protruding from the outer wall surface (822) of the shroud portion (82) is further provided.
  • the outer peripheral end of the inner peripheral side wall surface forming portion is located radially inside the inner peripheral end of the outer peripheral side wall surface forming portion of the outer peripheral annular piece (6). It is configured as follows. In this case, the work of cutting the integrated piece (41) integrally having the outer peripheral annular piece and the inner peripheral annular piece and separating the outer peripheral annular piece and the inner peripheral annular piece can be easily performed. As a result, the manufacturing cost of the compressor housing can be reduced.
  • the outer peripheral annular piece (6) and the inner peripheral annular piece (7) can be easily fitted to the scroll piece, so that the workability of the fitting work can be improved. As a result, the manufacturing cost of the compressor housing can be reduced.
  • At least one of the fitting allowance between the scroll piece and the outer peripheral annular piece or the fitting allowance between the scroll piece and the inner peripheral annular piece is a fitting allowance at an arbitrary circumferential position.
  • L is configured to be within ⁇ 10% of the average fitting allowance LA. That is, at least one of the fitting allowance between the scroll piece and the outer peripheral annular piece or the fitting allowance between the scroll piece and the inner peripheral annular piece has a uniform fitting allowance in the circumferential direction.
  • the compressor housing (3) according to any one of 1) to 12) above.
  • the scroll piece (5) is made of the same material as the inner annular piece (7).
  • the weight of the turbocharger can be reduced by reducing the weight of the compressor housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un carter de compresseur pourvu : d'une pièce de volute comprenant une partie de formation de surface de paroi latérale destinée à former une surface de paroi sur un côté dans la direction axiale d'une voie d'écoulement de volute ; d'une pièce annulaire circonférentielle externe comprenant une partie de formation de surface de paroi côté circonférence externe qui forme une surface de paroi sur le côté circonférentiel externe et l'autre côté dans la direction axiale de la voie d'écoulement de volute et qui a une partie d'extrémité conçue pour être ajustée sur une partie d'extrémité circonférentielle externe de la première partie de formation de surface de paroi latérale ; et d'une pièce annulaire circonférentielle interne comprenant une partie de formation de surface de paroi côté circonférence interne qui forme une surface de paroi sur le côté circonférentiel interne et l'autre côté dans la direction axiale de la voie d'écoulement de volute et qui a une partie d'extrémité conçue pour être ajustée sur une partie d'extrémité circonférentielle interne de la partie de formation de surface de paroi latérale, la pièce de volute ou la pièce annulaire circonférentielle intérieure ayant une partie carénage ayant une surface de carénage et une partie de formation de voie d'écoulement d'air d'admission conçue pour former une voie d'écoulement d'air d'admission et pour former, dans la direction radiale, un espace par rapport à une surface de paroi externe dans un côté radialement interne de la première partie de formation de surface de paroi latérale.
PCT/JP2019/033621 2019-08-28 2019-08-28 Carter de compresseur, surcompresseur et procédé de fabrication de carter de compresseur WO2021038737A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021541856A JPWO2021038737A1 (fr) 2019-08-28 2019-08-28
PCT/JP2019/033621 WO2021038737A1 (fr) 2019-08-28 2019-08-28 Carter de compresseur, surcompresseur et procédé de fabrication de carter de compresseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/033621 WO2021038737A1 (fr) 2019-08-28 2019-08-28 Carter de compresseur, surcompresseur et procédé de fabrication de carter de compresseur

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WO2021038737A1 true WO2021038737A1 (fr) 2021-03-04

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WO (1) WO2021038737A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023176486A1 (fr) 2022-03-16 2023-09-21 株式会社Ihi Compresseur

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003503631A (ja) * 1999-06-30 2003-01-28 アライドシグナル インコーポレイテッド 遠心圧縮機のための正確に渦巻形をしたダイカスト製圧縮機ハウジング
JP2011503439A (ja) * 2007-11-20 2011-01-27 マン ウント フンメル ゲゼルシャフト ミット ベシュレンクテル ハフツング ラジアルコンプレッサのハウジング
JP2011094618A (ja) * 2009-10-28 2011-05-12 Mann & Hummel Gmbh 遠心圧縮機
JP4778097B1 (ja) * 2010-04-23 2011-09-21 株式会社オティックス 過給機用のコンプレッサハウジング及びその製造方法
JP2012524860A (ja) * 2009-04-22 2012-10-18 ディーエスエム アイピー アセッツ ビー．ブイ． 半径流圧縮機のプラスチックハウジング
WO2014097775A1 (fr) * 2012-12-17 2014-06-26 川崎重工業株式会社 Compresseur à suralimentation de moteur
US20140314553A1 (en) * 2013-04-17 2014-10-23 Mann+Hummel Gmbh Method for Manufacturing a Plastic Housing and Plastic Housing
WO2017168767A1 (fr) * 2016-03-31 2017-10-05 三菱重工業株式会社 Carter pour compresseur radial et compresseur radial
JP2018132045A (ja) * 2017-02-17 2018-08-23 三菱重工業株式会社 回転機械
JP2018145831A (ja) * 2017-03-02 2018-09-20 株式会社オティックス ターボチャージャ用ハウジング及びその製造方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003503631A (ja) * 1999-06-30 2003-01-28 アライドシグナル インコーポレイテッド 遠心圧縮機のための正確に渦巻形をしたダイカスト製圧縮機ハウジング
JP2011503439A (ja) * 2007-11-20 2011-01-27 マン ウント フンメル ゲゼルシャフト ミット ベシュレンクテル ハフツング ラジアルコンプレッサのハウジング
JP2012524860A (ja) * 2009-04-22 2012-10-18 ディーエスエム アイピー アセッツ ビー．ブイ． 半径流圧縮機のプラスチックハウジング
JP2011094618A (ja) * 2009-10-28 2011-05-12 Mann & Hummel Gmbh 遠心圧縮機
JP4778097B1 (ja) * 2010-04-23 2011-09-21 株式会社オティックス 過給機用のコンプレッサハウジング及びその製造方法
WO2014097775A1 (fr) * 2012-12-17 2014-06-26 川崎重工業株式会社 Compresseur à suralimentation de moteur
US20140314553A1 (en) * 2013-04-17 2014-10-23 Mann+Hummel Gmbh Method for Manufacturing a Plastic Housing and Plastic Housing
WO2017168767A1 (fr) * 2016-03-31 2017-10-05 三菱重工業株式会社 Carter pour compresseur radial et compresseur radial
JP2018132045A (ja) * 2017-02-17 2018-08-23 三菱重工業株式会社 回転機械
JP2018145831A (ja) * 2017-03-02 2018-09-20 株式会社オティックス ターボチャージャ用ハウジング及びその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023176486A1 (fr) 2022-03-16 2023-09-21 株式会社Ihi Compresseur

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