WO2017077826A1 - スクロール圧縮機、スクロール圧縮機の製造方法 - Google Patents

スクロール圧縮機、スクロール圧縮機の製造方法 Download PDF

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Publication number
WO2017077826A1
WO2017077826A1 PCT/JP2016/080210 JP2016080210W WO2017077826A1 WO 2017077826 A1 WO2017077826 A1 WO 2017077826A1 JP 2016080210 W JP2016080210 W JP 2016080210W WO 2017077826 A1 WO2017077826 A1 WO 2017077826A1
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WO
WIPO (PCT)
Prior art keywords
scroll compressor
bearing
harness
housing
axis
Prior art date
Application number
PCT/JP2016/080210
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
洋悟 高須
創 佐藤
一樹 高橋
央幸 木全
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 CN201680043785.8A priority Critical patent/CN107923396A/zh
Priority to EP16861893.2A priority patent/EP3315777B1/de
Publication of WO2017077826A1 publication Critical patent/WO2017077826A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/007—General arrangements of parts; Frames and supporting elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/02—Arrangements of bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/56—Bearing bushings or details thereof

Definitions

  • the orbiting scroll performs the orbiting movement about the axis of the main axis by the eccentric shaft offset with respect to the main axis as described above, and compresses the refrigerant gas. For this reason, the load by the reaction force of refrigerant
  • a scroll compressor includes an electric motor, a rotary shaft that is driven to rotate about an axis by the electric motor, a scroll compressor main body that is driven by rotation of the rotary shaft, and the electric motor.
  • a sub-bearing having a plurality of arms provided with a gap, and a cylindrical housing extending along the axis, and housing the electric motor, the rotating shaft, the scroll compressor body, the main bearing, and the sub-bearing
  • a ring-shaped harness fitted on the inner peripheral surface of the housing, and a fixing portion for fixing the arm of the sub-bearing to the harness.
  • the arm is fixed to the harness by the fixing portion, and the harness is fitted to the inner peripheral surface of the housing.
  • the scroll compressor according to the second aspect of the present invention is the scroll compressor according to (1), wherein the fixed portion is formed in the first hole portion formed in the arm and the harness.
  • the fixing bolt is inserted through the second hole portion, and the inner diameter of the first hole portion is larger than the outer diameter of the fixing bolt.
  • the arm and the rotating shaft can be easily centered (coaxial).
  • the scroll compressor according to the third aspect of the present invention is the scroll compressor according to (1) or (2), wherein the scroll compressor is interposed between the arm and the harness, so that A shim for positioning the arm is provided.
  • the arm can be easily positioned in the axial direction because the shim is interposed between the arm and the harness.
  • a method for manufacturing a scroll compressor according to a fourth aspect of the present invention includes an electric motor, a rotary shaft that is driven to rotate about an axis by the electric motor, a scroll compressor main body that is driven by rotation of the rotary shaft, A main bearing that rotatably supports the rotating shaft between the electric motor and the scroll compressor body, and the rotating shaft that supports the rotating shaft on the opposite side of the main bearing of the electric motor, and extends in a radial direction to surround the main shaft.
  • a sub bearing having a plurality of arms spaced in the direction, and a cylindrical shape extending along the axis, the motor, the rotary shaft, the scroll compressor body, the main bearing, and the sub bearing.
  • a housing for housing, a ring-shaped harness fitted in an inner peripheral surface of the housing, and the arm of the sub bearing are fixed to the harness.
  • a scroll compressor comprising: an assembly step of housing the electric motor, the rotary shaft, the scroll compressor main body, the main bearing in the housing; and an inner periphery of the housing.
  • the scroll compressor 100 includes a housing 1 that forms the outer shape of the apparatus, a drive unit 3 (electric motor 3) provided in the housing 1, and a rotary shaft 4 that is rotationally driven by the drive unit 3.
  • a compressor 2 driven by the rotation of the rotary shaft 4 (scroll compressor body 2), a main bearing 9A and a sub-bearing 9B for rotatably supporting the rotary shaft 4, and a harness fitted in the housing 1 40 and a fixing portion (bolt B, see FIG. 2) for fixing the sub-bearing 9B to the harness 40.
  • the compression unit 2 and the drive unit 3 are connected to each other by a rotating shaft 4 extending along the axis O1. That is, the rotational energy by the drive unit 3 is immediately transmitted to the compression unit 2 through the rotation shaft 4.
  • the compressing unit 2 compresses the working fluid with this rotational energy and discharges the working fluid to the outside in a high pressure state.
  • the high-pressure working fluid is used as a refrigerant in, for example, an air conditioner.
  • the housing 1 includes a suction pipe 11 that sucks refrigerant gas as a working fluid from the outside, and a discharge pipe 12 that discharges the refrigerant gas that has become a high pressure state in the discharge chamber 67 after being compressed by the compression unit 2. Is provided.
  • the rotary shaft 4 has a cylindrical shape with the axis O1 as the center.
  • the rotary shaft 4 includes a main bearing 9A provided at one end (first end) of the rotary shaft 4 in the direction of the axis O1, and a rotary shaft on the opposite side of the axis O1 direction when viewed from the main bearing 9A. 4 is rotatably supported in the housing 1 by a sub-bearing 9B provided at the other end portion (second end portion).
  • the main bearing 9 ⁇ / b> A has a main bearing body 75 that rotatably supports the rotary shaft 4.
  • An eccentric shaft 5 having a columnar shape with an eccentric axis O2 different from the axis O1 as a center is provided at a position offset (eccentric) with respect to the axis O1 at one end of the rotary shaft 4.
  • the eccentric axis O2 is parallel to the axis O1.
  • the eccentric shaft 5 has a cylindrical shape protruding from the end of the rotating shaft 4 toward one side in the axis O1 direction. Therefore, the eccentric shaft 5 revolves around the axis O1 of the rotating shaft 4 in a state where the rotating shaft 4 rotates around the axis O1.
  • the main bearing 9A is provided with an Oldham ring 91 for restricting the rotation of the orbiting scroll 7 (rotation around the eccentric axis O2).
  • the Oldham ring 91 is formed with a protrusion that fits into a groove formed in the end plate 71 of the orbiting scroll 7.
  • the compression unit 2 has a fixed scroll 6 and a turning scroll 7.
  • the discharge cover 8 is a substantially disk-shaped member that divides the space inside the housing 1 in the direction of the axis O1, and has a discharge port 68 that communicates the discharge chamber 67 and the compressed refrigerant gas at the center thereof.
  • a discharge valve 66 is provided to prevent the refrigerant from flowing back from the high pressure side.
  • the fixed scroll 6 is a substantially disk-shaped member fixed inside the housing 1.
  • the orbiting scroll 7 is opposed to the fixed scroll 6 from the direction of the axis O1 to form a compression chamber C therebetween.
  • the fixed scroll 6 includes a disc-shaped end plate 61 and a fixed wrap 62 erected on the other surface of the end plate 61 in the direction of the axis O1 from one side to the other side in the direction of the axis O1. And have.
  • the end plate 61 extends along a plane that is substantially orthogonal to the axis O1.
  • the fixed wrap 62 is a wall formed in a spiral shape when viewed from the direction of the axis O1.
  • the fixed wrap 62 is formed of a plate-like member wound around the center of the end plate 61.
  • the fixed wrap 62 is preferably configured to form an involute curve centered on the axis O1 when viewed from the direction of the axis O1.
  • the orbiting scroll 7 has a disk-like end plate 71 and a spiral orbiting wrap 72 provided on one surface of the end plate 71 in the axis O1 direction.
  • the swirl wrap 72 is also preferably configured to form an involute curve centered on the axis O2.
  • the turning wraps 72 are arranged so as to face the fixed wrap 62 from the direction of the axis O1 and overlap each other in the direction intersecting the axis O1.
  • the fixed wrap 62 and the turning wrap 72 mesh with each other.
  • a fixed space is formed between the fixed wrap 62 and the swivel wrap 72 in such a state of meshing. The volume of this space changes as the turning wrap 72 turns. Thereby, refrigerant gas can be compressed.
  • lubricating oil is supplied to the rotating shaft 4 (eccentric shaft 5) from the oil supply pump 80. This lubricating oil is lubricated between the bush 101 of the bush assembly 10 and the bearing 74 of the orbiting scroll 7 and then recovered downward in the housing 1.
  • the sub-bearing 9B includes a sub-bearing body 76, a cylindrical holder portion 78 that supports the sub-bearing body 76 from the outer peripheral side, and a plurality of radially extending radially about the holder portion 78. And (three) arms 79.
  • the harness 40 is fixed to the inner peripheral surface of the housing 1 by shrink fitting. More specifically, the harness 40 is fixed to the housing 1 by the following method (manufacturing method of the scroll compressor). This method includes an assembly process, a shrink-fit process, and a fixing process. In the assembly process, the electric motor 3 (drive unit 3), the rotating shaft 4, the scroll compressor main body 2 (compression unit 2), and the main bearing 9A are accommodated in the housing 1. Next, in the shrink fitting process, the harness 40 is fixed to the inner peripheral surface of the housing 1 by shrink fitting.
  • the housing 1 is thermally expanded by heating with a heat source, and the inner diameter of the housing 1 is expanded.
  • the harness 40 is fitted inside the housing 1 in a state where the inner diameter of the housing 1 is enlarged. Thereafter, by removing the heat of the housing 1, the housing 1 contracts to restore the initial dimensions. Thereby, the harness 40 is firmly fixed on the inner peripheral side of the housing 1. Thereafter, the sub-bearing 9B is fixed to the harness 40 by a bolt B as a fixing portion described later (fixing step).
  • the harness 40 is formed symmetrically with respect to the target axis Os extending in a horizontal plane intersecting the axis O1. Furthermore, the outer peripheral part of the harness 40 is made into the notch part 41 by notching over four places seeing from the axis line O1 direction.
  • the four notches 41 are a first notch 41A and a second notch 41B that are line-symmetric with respect to the target axis Os.
  • the first notch 41A is formed by a curved edge that curves inward in the radial direction from the outer peripheral edge (outer peripheral side) of the harness 40 as viewed from the direction of the axis O1.
  • the second notch portion 41 ⁇ / b> B is formed by a linear edge that forms a string of the harness 40.
  • the inner diameter of the first hole 79H formed in the arm 79 (sub bearing 9B) is slightly larger than the shaft diameter of the bolt B. Therefore, before the bolt B is completely tightened, there is a room for the sub bearing 9B to rotate slightly around the axis O1 with respect to the harness 40. Using this room, the center axis of the sub bearing 9B (sub bearing body 76) is aligned with the axis O1 of the housing 1 (rotating shaft 4). In other words, the sub bearing 9B can be centered with respect to the axis O1.
  • the drive shaft 3 (electric motor 3) is energized, so that the rotary shaft 4 is rotationally driven around the axis O1.
  • the eccentric shaft 5 revolves around the axis O1, and the orbiting scroll 7 attached thereto rotates around the axis O1.
  • the rotation of the orbiting scroll 7 is restricted by the Oldham ring 91 described above. Therefore, the orbiting scroll 7 makes a circular motion (turns) about the axis O1 of the rotating shaft 4 along the locus drawn by the eccentric axis O2.
  • the turning wrap 72 of the turning scroll 7 repeats continuous relative movement with respect to the fixed wrap 62 of the fixed scroll 6. By this relative movement, the volume of the compression chamber C formed between the fixed wrap 62 and the swirl wrap 72 changes over time.
  • refrigerant gas as a working fluid is introduced into the compression chamber C from an opening generated on the radially outer side of the orbiting wrap 72 (and the fixed wrap 62) during the orbiting of the orbiting scroll 7. As the orbiting scroll 7 turns, the opening is closed. Thereby, the refrigerant gas is confined in the compression chamber C. Subsequently, as the orbiting scroll 7 is still revolving, the refrigerant gas moves toward the radially inner side (that is, the eccentric axis O2 side). At this time, since the swirl wrap 72 and the fixed wrap 62 have the above-described spiral shape, the volume of the compression chamber C formed by both decreases as it goes radially inward.
  • the arm 79 in the sub-bearing 9B is directly fixed to the inner peripheral surface of the housing 1 by, for example, welding or the like, the arm 79 is used for compressing the refrigerant gas. Due to the reaction force and the moment of a member such as a balance weight that adjusts the balance during rotation, a load toward the inside or outside in the radial direction is applied with a sinusoidal increase / decrease.
  • the arm 79 (sub bearing 9B) is fixed to the housing 1 via the harness 40 as described above.
  • the harness 40 is fixed to the inner peripheral surface of the housing 1 by shrink fitting. That is, the outer peripheral surface of the harness 40 and the inner peripheral surface of the housing 1 are in contact with each other and are held in an interference fit state.
  • the arm 79 (sub bearing 9B) can be firmly and stably fixed to the inner peripheral surface 1A of the housing 1. Therefore, even when vibration propagates from the scroll compressor body to the arm, the possibility that the arm and the harness fall off from the housing can be almost eliminated.
  • the inner diameter of the first hole 79H formed in the arm 79 is slightly larger than the shaft diameter of the bolt B.
  • the sub-bearing 9B has room for slightly turning around the axis O1 with respect to the harness 40. Using this room, the center axis of the sub bearing 9B (sub bearing body 76) is aligned with the axis O1 of the housing 1 (rotating shaft 4). In other words, the sub bearing 9B can be centered with respect to the axis O1.
  • the region including the outer peripheral end 79A of the arm 79 is made thinner than the other part of the outer peripheral end 79A, thereby forming the thin portion 79B.
  • the end face of the arm 79 on one side in the axis O1 direction (the drive unit 3 side) is slightly counterbored toward the other side in the direction of the axis O1.
  • a step is formed between the thin portion 79B and the other portion of the arm 79 (the portion on the inner side in the radial direction with respect to the axis O1).
  • a very thin plate-shaped shim S is disposed as necessary.
  • the shim S By interposing the shim S, it is possible to easily align the sub bearing 9B with respect to the harness 40 (alignment in the direction of the axis O1).
  • the harness 40 is fixed to the inner peripheral surface 1A of the housing 1 by shrink fitting, it may be difficult to precisely align the harness 40 in the direction of the axis O1. That is, it is conceivable that the position of the sub bearing 9B in the direction of the axis O1 may be shifted due to the harness 40 being slightly shifted from the housing 1 in the direction of the axis O1.
  • the shim S between the sub-bearing 9B and the harness 40 as described above, such a shift can be absorbed and the position of the sub-bearing 9B in the direction of the axis O1 can be optimized.
  • the radial dimension (thickness dimension) in the region on the one side in the axis O1 direction of the harness 40 is smaller than that in the first embodiment.
  • the constricted portion 40C is formed by setting the distance in the radial direction between the outer peripheral surface and the inner peripheral surface of the harness 40 to be smaller than that in the first embodiment. With this constricted portion 40C, a larger gap can be secured between the inner peripheral surface 40A of the harness 40 and the drive unit 3.
  • lubricating oil is continuously supplied to the main bearing 9A and the sub-bearing 9B described above by the oil supply pump 80.
  • the lubricating oil that has finished lubricating the main bearing 9A and the sub-bearing 9B flows toward the lower side of the housing 1 (that is, the other side in the direction of the axis O1) and is stored.
  • the gap between the harness 40 and the drive unit 3 is not sufficiently large, there is a possibility of affecting the flow of the lubricating oil.
  • the constricted portion 40C is formed in the harness 40, the possibility that the harness 40 affects the flow state of the lubricating oil can be reduced.
  • the end surface on one side of the harness 40 in the direction of the axis O1 is in contact with the drive unit 3.
  • the aspect of the harness 40 is not limited to this.
  • a gap in the direction of the axis O ⁇ b> 1 may be formed between the harness 40 and the drive unit 3. In this case, the possibility that the harness 40 hinders the flow of the lubricating oil can be further reduced.
  • the sub bearing 9B includes the three arms 79 .
  • the aspect of the sub bearing 9B is not limited to this, and for example, as shown in FIG. 6, four arms 79 extending radially from the holder portion 78 in the radial direction of the axis O1 may be provided. In this case, it is desirable that four second holes 40 ⁇ / b> H are formed in the harness 40 corresponding to the four arms 79.
  • Bearing 75 Main bearing body 76 ... Sub Bearing body 79 ... Arm 80 ... Oil pump 91 ... Oldham ring 92 ... Thrust bearing 93 ... Oil discharge hole 100 ... Scroll compressor 101 ... Bush C ... Compression chamber H1 ... Opening for welding H2, H21, H22 ... Hole O1 ... Axis O2 ... Eccentric axis W ... welded part

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
PCT/JP2016/080210 2015-11-05 2016-10-12 スクロール圧縮機、スクロール圧縮機の製造方法 WO2017077826A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680043785.8A CN107923396A (zh) 2015-11-05 2016-10-12 涡旋压缩机、涡旋压缩机的制造方法
EP16861893.2A EP3315777B1 (de) 2015-11-05 2016-10-12 Spiralverdichter und verfahren zur herstellung eines spiralverdichters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015217463A JP2017089427A (ja) 2015-11-05 2015-11-05 スクロール圧縮機、スクロール圧縮機の製造方法
JP2015-217463 2015-11-05

Publications (1)

Publication Number Publication Date
WO2017077826A1 true WO2017077826A1 (ja) 2017-05-11

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PCT/JP2016/080210 WO2017077826A1 (ja) 2015-11-05 2016-10-12 スクロール圧縮機、スクロール圧縮機の製造方法

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Country Link
EP (1) EP3315777B1 (de)
JP (1) JP2017089427A (de)
CN (1) CN107923396A (de)
WO (1) WO2017077826A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237188A (zh) * 2018-11-29 2020-06-05 艾默生环境优化技术(苏州)有限公司 涡旋压缩机及用于涡旋压缩机的静涡旋部件的定位方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021206432A1 (de) 2021-06-22 2022-12-22 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Scrollmaschine
JP7161139B1 (ja) * 2021-08-05 2022-10-26 ダイキン工業株式会社 スクロール圧縮機及び冷凍サイクル装置

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JPH05209593A (ja) * 1992-01-31 1993-08-20 Matsushita Electric Ind Co Ltd スクロール圧縮機
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Publication number Priority date Publication date Assignee Title
JPH05209593A (ja) * 1992-01-31 1993-08-20 Matsushita Electric Ind Co Ltd スクロール圧縮機
JPH0842471A (ja) * 1994-07-29 1996-02-13 Sanyo Electric Co Ltd スクロール圧縮機
JPH10299681A (ja) * 1997-04-24 1998-11-10 Mitsubishi Electric Corp 流体機械
JP2004176549A (ja) * 2002-11-25 2004-06-24 Fujitsu General Ltd 密閉型圧縮機の製造方法
US20120151767A1 (en) * 2005-01-20 2012-06-21 Tecumseh Products Company Motor-compressor unit mounting arrangement for compressors
CN104165142A (zh) * 2014-08-01 2014-11-26 广东美芝制冷设备有限公司 旋转式压缩机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237188A (zh) * 2018-11-29 2020-06-05 艾默生环境优化技术(苏州)有限公司 涡旋压缩机及用于涡旋压缩机的静涡旋部件的定位方法
CN111237188B (zh) * 2018-11-29 2024-04-26 谷轮环境科技（苏州）有限公司 涡旋压缩机及用于涡旋压缩机的静涡旋部件的定位方法

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Publication number Publication date
EP3315777A1 (de) 2018-05-02
JP2017089427A (ja) 2017-05-25
EP3315777A4 (de) 2018-08-22
EP3315777B1 (de) 2019-10-23
CN107923396A (zh) 2018-04-17

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