WO2016121653A1 - 吸気整流装置、これを備えたコンプレッサ - Google Patents

吸気整流装置、これを備えたコンプレッサ Download PDF

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Publication number
WO2016121653A1
WO2016121653A1 PCT/JP2016/051897 JP2016051897W WO2016121653A1 WO 2016121653 A1 WO2016121653 A1 WO 2016121653A1 JP 2016051897 W JP2016051897 W JP 2016051897W WO 2016121653 A1 WO2016121653 A1 WO 2016121653A1
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WO
WIPO (PCT)
Prior art keywords
intake
flow guide
compressor
silencer
cover ring
Prior art date
Application number
PCT/JP2016/051897
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English (en)
French (fr)
Japanese (ja)
Inventor
正義 田川
Original Assignee
三菱重工業株式会社
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 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Priority to KR1020177020497A priority Critical patent/KR101804742B1/ko
Priority to CN201680007035.5A priority patent/CN107208531A/zh
Publication of WO2016121653A1 publication Critical patent/WO2016121653A1/ja

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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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • 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
    • 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
    • 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

  • the present invention relates to an intake air rectifier and a compressor including the same.
  • Patent Document 1 discloses a supercharger including a compressor and a filter (intake silencer) connected to the intake air inlet passage side of the compressor.
  • an exclusive flow guide 104 is interposed between the intake silencer 101 and the intake passage 103 of the compressor 102, whereby intake air from the intake silencer 101.
  • the flow to the passage 103 is arranged.
  • the flow guide 104 has a large length in the axial direction and is made of cast metal, and has a thickness of about 12 to 20 mm and is heavy, the supercharger (compressor 102) is opened and assembled. The workability in etc. was bad.
  • the present invention has been made in view of such circumstances, and has a structure that is compact, lightweight, and easy to manufacture, and matches the shape of the flow path from the intake silencer to the compressor intake passage to the specifications of the turbocharger. It is an object of the present invention to provide an intake air rectifier that can be appropriately selected and a compressor including the intake rectifier.
  • the present invention employs the following means.
  • An intake air rectifier is provided in an intake passage between a compressor in a supercharger and an intake silencer connected to an intake gas inlet side of the compressor, and is provided in the intake silencer.
  • a flow guide whose inner diameter decreases from the intake silencer side toward the compressor side, a cover ring provided between the flow guide and the compressor, and connecting the flow guide and the intake passage; It is equipped with.
  • the gas that has passed through the silencer element inside the intake silencer passes through the flow guide provided in the intake silencer and the cover ring connected to the downstream side thereof, and is then rectified. Is sucked into the intake passage.
  • the above rectifying action can be appropriately changed according to the specifications of the supercharger by replacing the cover ring with a different shape.
  • the cover ring forms a flow path by being connected to the downstream side of the flow guide provided in the intake silencer. For this reason, as a member of the intake air rectifier that is changed according to the specifications of the turbocharger, a large and heavy one that is connected integrally from the intake silencer to the intake passage of the compressor, such as a conventional flow guide made of casting Compared to, it is smaller and lighter.
  • the miniaturized cover ring does not require a large space in its storage location. For this reason, a large number of cover rings can be prepared and appropriately selected according to the specifications of the supercharger. Furthermore, even if the cover ring is manufactured by casting, the wooden mold is reduced in size, so that the wooden mold can be easily stored.
  • the small, lightweight, and easy-to-manufacture structure allows the flow path shape from the intake silencer to the compressor intake passage to be appropriately selected according to the supercharger specifications.
  • a gap may be provided between the downstream end of the flow guide and the upstream end of the cover ring.
  • the cover ring is preferably manufactured by casting with excellent manufacturability, but there is a concern that dimensional errors may occur due to casting, so by providing a gap with the flow guide as described above, especially when installing an intake silencer An error in the axial position can be allowed.
  • a step may be formed at an end of the cover ring on the intake silencer side, and a downstream end of the flow guide may be fitted into the step.
  • the intake silencer can be positioned by fitting the flow guide into the cover ring when installing the intake silencer to the compressor, making it easy to install the intake silencer. can do.
  • the flow guide is preferably formed of a metal plate and integrated with the intake silencer.
  • the weight of the flow guide can be drastically reduced as compared with the case of conventional casting, and the support structure can be simplified, so that the cost around the intake silencer can be reduced. .
  • the compressor impeller because the flow guide made of metal plate has ductility, the compressor impeller, called a burst, should be damaged during operation of the turbocharger, and the broken fragments of the compressor impeller scattered in the axial and radial directions. If the flow guide collides with the flow guide, the impact is absorbed or alleviated by plastic deformation of the flow guide. Therefore, safety can be improved.
  • the upstream end of the flow guide may be expanded. Thereby, the rectification effect of the airflow flowing into the flow guide from the inside of the intake silencer can be enhanced.
  • the compressor according to the present invention includes any one of the intake rectifiers described above. For this reason, the cover ring is reduced in size and weight so that a large number of types can be easily arranged, and the structure from the intake silencer to the compressor intake passage is supercharged with a small, lightweight, and easy-to-manufacture structure. It can be selected appropriately according to the specifications of the machine.
  • the flow path shape from the intake silencer to the compressor intake passage is supercharged by a small, lightweight, and easily manufactured structure. It can be selected appropriately according to the specifications of the machine.
  • FIG. 1 is a longitudinal sectional view showing a vicinity of a compressor and an intake silencer of a turbocharger to which an intake rectifier according to an embodiment of the present invention is applied. It is the longitudinal cross-sectional view which expands the II section of FIG. 1 and shows 1st Embodiment of the intake rectifier which concerns on this invention. It is the III section enlarged view of Drawing 2, and (a), (b), (c), and (d) are longitudinal sections showing the example of the shape of the flow guide upstream end, respectively. It is a longitudinal cross-sectional view which shows 2nd Embodiment of the intake rectifier which concerns on this invention. It is the V section enlarged view of FIG. It is a longitudinal cross-sectional view which shows the compressor and intake silencer vicinity of the supercharger which shows the prior art.
  • FIG. 1 is a longitudinal sectional view showing a compressor 2 of a supercharger 1 to which an intake air rectifier according to the present invention is applied, and the vicinity of an intake silencer 3 connected to the compressor 2.
  • the supercharger 1 of this embodiment is a device that increases the combustion efficiency of an internal combustion engine by compressing a gas such as air or gas supplied to the internal combustion engine and guiding the compressed gas to the internal combustion engine.
  • the compressor 2 is provided adjacent to the bearing base 4, and the turbine shaft 5 pivotally supported by a bearing (not shown) inside the bearing base 4 is passed through the casing 6 of the compressor 2.
  • a compressor impeller 7 is fixed to an end of the turbine shaft 5 so as to rotate integrally.
  • the compressor impeller 7 has a configuration in which a large number of fins (blades) 7 b project from the outer peripheral surface of a hub 7 a that forms the center thereof, and rotates inside the casing 6.
  • An exhaust turbine (not shown) is installed on the opposite side of the bearing stand 4 with respect to the compressor 2, and a turbine impeller (not shown) is fixed to the other end of the turbine shaft 5 so as to rotate integrally.
  • an intake passage 10 along the axial direction of the turbine shaft 5, a stationary vane-shaped diffuser 11, a spiral scroll passage 12, and a compressed gas outlet 13 are provided.
  • the casing 6 includes, for example, an inner housing 6 a that forms the intake passage 10, a middle housing 6 b that forms the inner peripheral surface of the scroll passage 12, and an outer housing 6 c that forms the outer peripheral surface of the scroll passage 12. 7 is accommodated in the inner housing 6a (intake passage 10).
  • a heat insulating material 15 is attached to the outer peripheral portion of the outer housing 6c.
  • An annular cover ring 20 constituting an intake rectifier 18 according to an embodiment of the present invention described later is detachably fixed by a plurality of bolts 19 on the inlet side (intake silencer 3 side) of the inner housing 6a.
  • the intake silencer 3 connects, for example, a disk-shaped front panel 21, a rear panel 22 that is opposed to the front panel 21 and has a communication hole 22 a in the center, and the periphery of the panels 21 and 22.
  • the outer peripheral panel 23 provided in this way is a cylindrical shape assembled.
  • a silencer element 25 is provided along the inner peripheral surface of the outer peripheral panel 23, and a guide cylinder 26 is installed along the central axis of the intake silencer 3.
  • the guide tube 26 has a conical shape whose inner diameter decreases from the front panel 21 side toward the rear panel 22 (communication hole 22a) side.
  • An outlet pipe 27 extending to the compressor 2 side is inserted into and fixed to the communication hole 22 a of the rear panel 22, and a mounting flange 28 fixed to the outer periphery of the end of the outlet pipe 27 on the compressor 2 side is a casing with a plurality of bolts 29.
  • the intake silencer 3 is connected and fixed to the casing 6.
  • a conical tubular flow guide 30 constituting the intake air rectifier 18 according to the embodiment of the present invention is installed on the inner peripheral portion of the outlet pipe 27.
  • a sound insulating material 32 is disposed between the inner surfaces of the front panel 21 and the rear panel 22, the inside of the guide tube 26, and between the outlet pipe 27 and the flow guide 30, respectively.
  • FIG. 2 is a longitudinal cross-sectional view showing the first embodiment of the intake air rectifier 18 by enlarging the II part of FIG.
  • the intake air rectifier 18 is provided between the intake silencer 3 and the intake passage 10 of the compressor 2, and gas A such as air drawn from the outer periphery of the intake silencer 3 is aligned along the central axis of the intake passage 10. The flow is rectified to flow into the intake passage 10.
  • the intake air rectifier 18 is provided on the annular cover ring 20 detachably fixed to the inlet side of the inner housing 6a with a plurality of bolts 19 and the inner peripheral portion of the outlet pipe 27 of the intake silencer 3. And a conical tubular flow guide 30.
  • the flow guide 30 that forms the intake outlet portion of the intake silencer 3 has a conical tubular shape whose inner diameter decreases from the intake silencer 3 side toward the intake passage 10 side (cover ring 20 side), and constitutes each part of the intake silencer 3. It is formed of a metal plate similar to a rolled steel plate or the like (for example, Gr. C or Gr. D of ASTM standard A283) and integrated with the intake silencer 3.
  • the end of the flow guide 30 on the intake silencer 3 side is welded to the inner periphery of the front end of the outlet pipe 27, and the end of the flow guide 30 on the intake passage 10 side is connected to the rear of the outlet pipe 27 via the rear end plate 34. It is fixed at the end.
  • the cover ring 20 is an annular member positioned between the flow guide 30 and the intake passage 10 (inner housing 6 a) of the compressor 2, and a plurality of bolts 19 are attached to the inner housing 6 a forming the intake passage 10. It is concluded with.
  • the inner peripheral surface of the inner housing 6a is substantially extended to the flow guide 30 side.
  • the inner diameter of the cover ring 20 gradually decreases from the flow guide 30 side toward the intake passage 10 side, and the downstream end portion 30a inner peripheral surface of the flow guide 30 and the upstream end inner peripheral surface 10a of the intake passage 10 Is smoothly connected without any step.
  • the cover ring 20 is preferably cast from cast iron (for example, Gr. 65-45-12 of ASTM standard A536, FCD450 of JIS standard) constituting the casing 6 of the compressor 2, etc. It may be manufactured.
  • a small gap C between the downstream end 30a of the flow guide 30 and the end of the cover ring 20 on the intake silencer 3 side so as not to disturb the flow of the gas A.
  • the size of the gap C is preferably set in a range of about 3 mm to 5 mm, for example.
  • the upstream end of the flow guide 30 is expanded in a funnel shape (funnel shape or trumpet shape).
  • a funnel shape French shape or trumpet shape.
  • FIGS. 3A to 3D As the expanded shape (structure), those shown in FIGS. 3A to 3D can be exemplified.
  • the flow guide 30 is constituted by three metal plates 301, 302, and 303, and the abutting portion is welded by two welding lines W1 and W2 to form an expanded shape.
  • the flow guide 30 is composed of four metal plates 301, 304, 305, and 306, and the abutting portion is welded by three welding lines W3, W4, and W5 to expand the shape. It is said.
  • the flow guide 30 is composed of one metal plate 301 and one metal plate 307 having a curved surface, and the butted portion is welded by one welding line W6. Open shape.
  • 3D shows that the flow guide 30 is composed of two metal plates 301 and 308, the abutting portions are welded by one welding line W7, and the corner portions of the metal plates 301 and 308 are The shape is expanded by grinding with a grinder or the like from the circumferential side to the position of the line G.
  • exhaust gas from the high-temperature and high-pressure internal combustion engine flows into an exhaust turbine (not shown) of the supercharger 1, and this exhaust gas rotationally drives a turbine impeller (not shown).
  • the turbine shaft 5 and the compressor impeller 7 rotate integrally.
  • the above rectifying action can be appropriately changed according to the specifications of the supercharger 1 by replacing the cover ring 20 with a different shape.
  • the flow guide 30 does not need to be changed according to the specifications of the supercharger 1.
  • FIG. 2 when the shape of the inner housing 6a is changed and the inner diameter of the intake passage 10 is reduced to the shape of 10b indicated by a two-dot chain line, the shape of the cover ring 20 indicated by reference numeral 20a is formed. Replace with one.
  • the inner diameter of the end of the cover ring 20a on the intake silencer 3 side is the same as the inner peripheral surface of the end portion 30a of the flow guide 30, and the inner diameter of the end of the cover ring 20a on the intake passage 10 side is reduced.
  • the inner diameter of the inner housing 6a is adjusted to the inner diameter.
  • the gas A that has passed through the intake passage 10 is compressed by the compressor impeller 7, is then discharged from the compressed gas outlet 13 through the diffuser 11 and the spiral scroll passage 12, and is supplied to an internal combustion engine (not shown).
  • the cover ring 20 is connected to the downstream side of the flow guide 30 integrated with the intake silencer 3 to form a flow path. For this reason, as a member of the intake rectifier that is changed in accordance with the specifications of the supercharger 1, from the intake silencer 101 to the intake passage 103 of the compressor 102 as in the conventional casting flow guide 104 shown in FIG. It is much smaller and lighter than the large and heavy ones that are connected together.
  • the miniaturized cover ring 20 does not require a large space in its storage location. For this reason, a large number of cover rings 20 can be prepared and appropriately selected according to the specifications of the supercharger 1. Even when the cover ring 20 is manufactured by casting, the wooden mold is reduced in size, so that the wooden mold can be easily stored.
  • the small, lightweight, and easy-to-manufacture structure allows the shape of the flow path from the intake silencer 3 to the intake passage 10 of the compressor 2 to be appropriately selected according to the specifications of the supercharger 1. Performance can be demonstrated.
  • the cover ring 20 is manufactured.
  • it is made of a good casting it is possible to allow a dimensional error due to casting, particularly an axial position error when the intake silencer 3 is attached.
  • the flow guide 30 has been conventionally manufactured so as to have a thickness of about t12 mm to 20 mm so as to ensure strength, but in the present invention, it is formed of a metal plate of about t3 mm to 5 mm and integrated with the intake silencer 3. . For this reason, the weight of the flow guide 30 can be drastically reduced as compared with the case of the conventional casting, and the support structure of the flow guide 30 itself can be simplified, so that the cost can be reduced. .
  • the flow guide 30 is integrated with the intake silencer 3, so that the flow guide 30 is thinned and weight is reduced as compared with the case where the flow guide 30 is not supported by the intake silencer 3. Can be suppressed. Moreover, it becomes possible to manufacture the flow guide 30 with a metal plate. Furthermore, since the flow guide 30 is supported by metal coupling (welding) to the intake silencer 3, even if the flow guide 30 is thinned, the strength equivalent to that of the conventional structure can be ensured.
  • the flow guide 30 made of a metal plate has ductility, the compressor impeller 7 called a burst should be damaged during the operation of the supercharger 1, and the broken pieces of the compressor impeller 7 are axially broken.
  • the flow guide 30 can be plastically deformed to absorb or mitigate the impact. Therefore, safety can be improved.
  • the difference from the intake rectifier 18 of the first embodiment shown in FIG. 2 is a step D on the inner periphery of the end of the cover ring 20 on the intake silencer 3 side (see FIG. 5).
  • the downstream end 30a of the flow guide 30 is fitted to the step D. Since the configuration other than that is the same as that of the intake air rectifier 18 (see FIG. 2) of the first embodiment, the same reference numerals are given to the respective parts and the description thereof will be omitted.
  • a gap C between the flow guide 30 and the cover ring 20 is formed by forming such a step D at the end of the cover ring 20 on the intake silencer 3 side and fitting the downstream end 30a of the flow guide 30.
  • the cross section becomes a refracted shape. For this reason, it becomes difficult for the gas A to pass through the gap C, and the turbulence of the air flow, that is, the performance deterioration of the compressor 2 can be prevented.
  • the intake silencer 3 is positioned by fitting the flow guide 30 into the step D of the cover ring 20 when the intake silencer 3 is attached to the compressor 2.
  • the intake silencer 3 can be easily attached.
  • the cover rings 20 and 20a that are small, light, and easy to manufacture can be replaced.
  • the flow path shape from the intake silencer 3 to the intake passage 10 of the compressor 2 can be appropriately selected according to the specifications of the compressor 2.

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  • 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)
  • Supercharger (AREA)
PCT/JP2016/051897 2015-01-26 2016-01-22 吸気整流装置、これを備えたコンプレッサ WO2016121653A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020177020497A KR101804742B1 (ko) 2015-01-26 2016-01-22 흡기 정류 장치, 이것을 구비한 컴프레서
CN201680007035.5A CN107208531A (zh) 2015-01-26 2016-01-22 吸气整流装置和具备该吸气整流装置的压缩机

Applications Claiming Priority (2)

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JP2015012347A JP6147777B2 (ja) 2015-01-26 2015-01-26 吸気整流装置、これを備えたコンプレッサ
JP2015-012347 2015-01-26

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JP (1) JP6147777B2 (enrdf_load_stackoverflow)
KR (1) KR101804742B1 (enrdf_load_stackoverflow)
CN (1) CN107208531A (enrdf_load_stackoverflow)
WO (1) WO2016121653A1 (enrdf_load_stackoverflow)

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KR102786958B1 (ko) 2022-02-25 2025-03-27 두산에너빌리티 주식회사 공기 인렛 매니폴드 및 이를 포함하는 가스터빈
KR20240109422A (ko) 2023-01-04 2024-07-11 두산에너빌리티 주식회사 공기 인렛 매니폴드 어셈블리 및 이를 포함하는 가스터빈

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JP4028923B2 (ja) * 1997-12-10 2008-01-09 株式会社協立 滑り部材付きターボチャージャ
JP2014111905A (ja) * 2012-12-05 2014-06-19 Mitsubishi Heavy Ind Ltd 遠心圧縮機およびこれを備えた過給機ならびに遠心圧縮機の運転方法
WO2015005252A1 (ja) * 2013-07-10 2015-01-15 三菱重工業株式会社 過給機用サイレンサ

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JPH11324832A (ja) * 1998-05-11 1999-11-26 Yamaha Motor Co Ltd 内燃機関の吸気装置
JP2004232590A (ja) * 2003-01-31 2004-08-19 Suzuki Motor Corp 船外機の吸気装置
JP2005023792A (ja) * 2003-06-30 2005-01-27 Toyota Central Res & Dev Lab Inc 可変ベーン付遠心圧縮機
JP2007064042A (ja) * 2005-08-30 2007-03-15 Nissan Diesel Motor Co Ltd 多気筒エンジン
EP2110531B1 (en) * 2007-02-09 2016-11-30 Mitsubishi Heavy Industries, Ltd. Exhaust gas turbocharger
JP5101353B2 (ja) * 2008-03-12 2012-12-19 三菱重工業株式会社 回転計センサの取付構造
JP6008495B2 (ja) * 2011-12-16 2016-10-19 三菱重工業株式会社 排気タービン過給機
JP5883742B2 (ja) * 2012-08-10 2016-03-15 本田技研工業株式会社 鞍乗型車両の吸気構造
KR102160310B1 (ko) * 2013-03-06 2020-09-28 에이비비 터보 시스템즈 아게 배기가스 터보차저의 소음기
JP5569627B2 (ja) * 2013-06-27 2014-08-13 株式会社デンソー ミキシング装置

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Publication number Priority date Publication date Assignee Title
JP4028923B2 (ja) * 1997-12-10 2008-01-09 株式会社協立 滑り部材付きターボチャージャ
JP2014111905A (ja) * 2012-12-05 2014-06-19 Mitsubishi Heavy Ind Ltd 遠心圧縮機およびこれを備えた過給機ならびに遠心圧縮機の運転方法
WO2015005252A1 (ja) * 2013-07-10 2015-01-15 三菱重工業株式会社 過給機用サイレンサ

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JP2016138465A (ja) 2016-08-04
KR101804742B1 (ko) 2017-12-04
JP6147777B2 (ja) 2017-06-14
KR20170091750A (ko) 2017-08-09
CN107208531A (zh) 2017-09-26

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