WO2008026494A1 - Compresseur de type à palettes - Google Patents

Compresseur de type à palettes Download PDF

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Publication number
WO2008026494A1
WO2008026494A1 PCT/JP2007/066331 JP2007066331W WO2008026494A1 WO 2008026494 A1 WO2008026494 A1 WO 2008026494A1 JP 2007066331 W JP2007066331 W JP 2007066331W WO 2008026494 A1 WO2008026494 A1 WO 2008026494A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
sealing member
vane
rotor
hole
Prior art date
Application number
PCT/JP2007/066331
Other languages
English (en)
Japanese (ja)
Inventor
Keiichi Kanesugi
Hidetoshi Arahata
Mitsuya Ono
Hidehiko Takayama
Original Assignee
Valeo Thermal Systems Japan Corporation
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 Valeo Thermal Systems Japan Corporation filed Critical Valeo Thermal Systems Japan Corporation
Priority to JP2008532030A priority Critical patent/JP5176212B2/ja
Publication of WO2008026494A1 publication Critical patent/WO2008026494A1/fr

Links

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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/603—Centering; Aligning

Definitions

  • the present invention relates to a technique for improving the accuracy of centering of a bearing portion that holds a drive shaft in assembling a vane type compressor.
  • a cylindrical rotor that stores a vane is fixed to a drive shaft that rotates by receiving a driving force of an engine or the like, and the rotor is accommodated in an elliptical hole in the cylinder.
  • the front and rear end faces of the cylinder are sealed with a sealing member (referred to as a front / rear head or a side block).
  • the clearance between the short diameter part of the elliptical hole of the cylinder and the outer diameter of the rotor needs to be set as small as possible to reduce the leakage of compressed gas to the adjacent compression chamber.
  • the sealing means before and after the cylinder is provided with a bearing part for holding the drive shaft, and the shaft core of this bearing part and the elliptical shaft core of the cylinder must be accurately aligned (centered). However, it is important to improve the performance and reliability of the compressor.
  • Patent Document 1 Japanese Patent Laid-Open No. 4 58094
  • Patent Document 2 Japanese Patent Application Laid-Open No. 11 210651
  • each part within the clearance range can move relatively in the radial direction.
  • the stop member and the cylinder cannot be aligned with high accuracy.
  • the boss is pressed in with a negative boss clearance so that it cannot move in the radial direction, the cylinder deforms and the elliptical hole in the cylinder is distorted.
  • an object of the present invention is to enable accurate centering without requiring a special separate member and without increasing the assembly process.
  • the present invention provides a rotor fixed to a drive shaft, a vane slidably accommodated in a vane groove formed in the rotor, the rotor, and the vane.
  • a cylinder in which a hole for accommodating the cylinder is formed, a front side sealing member for sealing the front side of the cylinder, and a rear side sealing member for sealing the rear side of the cylinder.
  • a protrusion projecting in the radial direction of the rotor is formed at a joint portion between the cylinder and the front side sealing member and a joint portion between the cylinder and the rear side sealing member.
  • the projection is formed at three or more locations with respect to one joint portion.
  • the protrusion includes a portion that contacts the front-side sealing member of the cylinder and a portion that contacts the rear-side sealing member of the cylinder.
  • the protrusion is formed on, for example, a flange-like portion provided at the front end portion and the rear end portion of the cylinder! /.
  • the protrusion is formed on a portion of the front side sealing member that contacts the cylinder, and the cylinder of the rear side sealing member Formed on the abutting part! /, Or even! / (Claim 4).
  • the protrusion is provided so as to avoid a short diameter portion of the hole! /. (Claim 5).
  • the elliptical hole formed in the cylinder is designed so that the clearance between the short diameter portion and the outer diameter of the rotor is reduced, the short diameter portion of the hole is reduced by deformation of the cylinder. If it shrinks in the radial direction, a problem will occur when the inner wall surface of the hole comes into contact with the outer peripheral surface of the rotor. Therefore, as in this configuration, the projections are provided so as to avoid the short diameter portion, that is, avoiding the inside of the predetermined circumferential angle from the radial extension line of the short diameter portion.
  • the cylinder is slightly deformed. Even so, there is no fear that the rotor, which has almost no influence on the dimension of the short diameter portion, will come into contact with the hole.
  • FIG. 1 is a cross-sectional view showing a structural example of a vane compressor to which Embodiment 1 of the present invention is applied.
  • FIG. 2 is a perspective view showing an assembled state of the vane compressor to which the first embodiment of the present invention is applied.
  • FIG. 3 schematically shows a coupling portion of the cylinder, the front head, and the rear head according to the first embodiment. ⁇ shows the state before coupling, and (b) shows the state after coupling.
  • FIG. 4 is an enlarged perspective view of a cylinder according to Embodiment 1.
  • FIG. 5 is a plan view from the front side of the cylinder according to the first embodiment.
  • FIG. 6 is a diagram showing the shape of a protrusion.
  • FIG. 7 is a plan view from the cylinder side showing the structure of the rear head according to the second embodiment.
  • FIG. 8 is a plan view from the cylinder side showing the structure of the front head according to the second embodiment. Explanation of symbols
  • FIGS. 1 and 2 show a vane type compressor 1 used as a part of a vehicle air conditioner.
  • the vane type compressor 1 includes a cylinder 2 and a cylinder constituting a compression chamber. 2, a front head 3 that seals the front end face of 2, a rear head 4 that seals the rear end face of the cylinder 2, a drive shaft 5 that rotates by receiving driving force from an engine, etc., a rotor 6 that is fixed to the drive shaft 5, A plurality of (seven in this example) vanes 7 are slidably accommodated in the mouth 6.
  • the cylinder 2 is formed with a hole 10 having an elliptical cross section, and the rotor 6 and the vane 7 are accommodated in the hole 10.
  • the rotor 6 has a perfect circular cylindrical shape having a diameter substantially coincident with the elliptical minor axis of the hole 10, and the outer wall of the rotor 6 and the minor axis part of the hole 10 are in contact with each other.
  • Two compression chambers 11 are formed between the rotor 6 and the long diameter portion of the hole 10.
  • the rotor 6 is formed with five vane grooves 12, and these vane grooves 12 are inclined at a predetermined angle in the rotation direction of the rotor 6 with respect to the radial direction from the rotation center of the port 6. The shape is made.
  • Each vane 7 is inserted into each vane groove 12, and in accordance with the change in the inner diameter of the hole 10, while its tip is slidably contacted with the inner wall of the hole 10 by centrifugal force as the rotor 6 rotates. Slide in the vane groove 12.
  • the vane 7 advances from the long diameter portion to the short diameter portion of the hole 10 as the rotor 6 rotates, the volume of the compression chamber 11 divided by the vane 7 gradually decreases. The fluid inside is compressed.
  • the drive shaft 5 is rotatably supported by the front head 3 and the rear head 4 via bearings and seal materials, In both cases, one end thereof is fixed to the rotating plate 15.
  • the rotating plate 15 can be connected or disconnected via an electromagnetic clutch mechanism to a pulley 16 that rotates upon receiving rotation of an engine or the like.
  • the front head 3 is configured to cover the entire cylinder 2 and a part of the rear head 4, and the suction chamber 20 is formed in the front head 3.
  • a discharge chamber 21 is formed in the rear head 4.
  • the suction chamber 20 communicates with the vicinity of the long diameter portion of the hole 10 in the compression chamber 11, and the discharge chamber 21 communicates with the vicinity of the short diameter portion of the hole 10 in the compression chamber 11.
  • the refrigerant force flowing out from the evaporator in the refrigeration cycle flows into the suction chamber 20 via the check valve 25 and is compressed in the compression chamber 11 to the discharge chamber 21 after being compressed. It flows in and is discharged from the discharge chamber 21 toward the condenser of the refrigeration cycle.
  • FIG. 2 the threaded state of the cylinder 2, the front head 3, the rear head 4, the rotor 6, and the drive shaft 5 is shown.
  • the assembly procedure is as follows. First, the rear surface of the cylinder 2 is joined to the front surface of the rear head 4, then the rotor 6 and vane 7 are placed in the hole 10 of the cylinder 2 and the drive shaft 5 is installed. Pass the rear end through the through hole 30 of the rear head 4, and then join the front head 3 to the front of the rear head 4 so as to cover the entire cylinder 2, and connect the front end of the drive shaft 5 to the through hole of the front head 3 31. Let them communicate.
  • a rear side flange 33 is provided on the rear surface portion of the cylinder 2, and the rear side flange 33 is arranged inside the joining frame portion 34 provided on the front surface portion of the rear head 4.
  • the cylinder 2 and the rear head 4 are assembled by bringing them into close contact with each other.
  • the rear surface portion of the front head 3 is a hollow cylindrical portion 36. Inside the cylindrical portion 36, there is a first stepped portion 37 and an outer end (rear end) than the first stepped portion 37.
  • the second stepped portion 38 is provided on the (end) side, and the surface facing the second stepped portion 38 from the first stepped portion 37 is inclined so that the inner diameter of the cylindrical portion 36 gradually increases. 39 is provided.
  • a front side flange 41 is provided on the front surface of the cylinder 2.
  • the front head 3, the cylinder 2 and the rear head 4 are assembled by bringing the front flange 41 of the cylinder 2 into close contact with the first stepped portion 37 of the front head 3, This is performed by bringing the inner wall surface of the joint frame portion 43 existing at the outer (rear) end of the second step portion 38 of the front head 3 into close contact with the outer wall surface of the joint frame portion 34 of the rear head 4.
  • a plurality of protrusions 50 are provided on the front side flange 41 and the rear side flange 33 of the cylinder 2.
  • the cylinder 2 is made of a material such as an aluminum alloy, and a projection 50 is provided on the material of the cylinder 2 by giving a predetermined margin in advance.
  • a projection 50 is provided on the material of the cylinder 2 by giving a predetermined margin in advance.
  • these protrusions 50 each have an R shape on each surface or side, and as a size, the width L1 is 10 mm or less (preferably about 3 mm) and is long.
  • the height L2 is preferably 10 mm or less (preferably about 5 mm) and the height L3 is 10 mm or less (preferably about 0.7 mm).
  • the present invention is not limited to the number of protrusions 50 shown in the present embodiment, the forming position, the shape, etc., and the configuration of the sealing means (with or without side blocks). It includes a liaison.
  • FIGS. 7 and 8 show the configurations of the rear head 61 and the front head 62 according to the present embodiment.
  • the rear head 61 six protrusions 65 are formed on the inner wall surface of the joint frame portion 34 (see FIG. 3).
  • the front head 62 the first step portion 37 (see FIG. 3) and the vicinity thereof are formed.
  • Six protrusions 65 are formed on the inclined surface.
  • the pressure at the time of press-fitting is absorbed by the protrusions, and the flanges 33 and 41 of the cylinder 2, the rear head 61 and the front head 62 themselves are prevented from being distorted. be able to. As a result, it passes through the center of each of the through hole 67 of the front head 62, the hole 10 of the cylinder 2, and the through hole 68 of the rear head 61 without increasing the assembly process without using other members as in the past.
  • the line (see the dashed line in Figure 2) can be accurately aligned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

Compresseur de type à palettes (1) dans lequel un arbre de transmission (5) peut être centré de manière précise sans nécessiter d'autre élément spécifique ni augmenter le nombre d'étapes d'assemblage. Le compresseur de type à palettes (1) comprend un rotor (6) fixé sur l'arbre de transmission (5), des palettes (7) reçues de manière coulissante dans le rotor (6), un cylindre (2) dans lequel le rotor (6) et les palettes (7) sont placés et dans lequel un trou (10) constituant une chambre de compression est formé, un élément d'étanchéité avant (3) pour assurer l'étanchéité du côté avant du cylindre (2), et un élément d'étanchéité arrière (4) pour assurer l'étanchéité du côté arrière du cylindre (2). Des saillies (50) sont formées sur la partie de liaison (41) entre le cylindre (2) et l'élément d'étanchéité avant (3) et sur la partie de liaison (33) entre le cylindre (2) et l'élément d'étanchéité arrière (4).
PCT/JP2007/066331 2006-08-29 2007-08-23 Compresseur de type à palettes WO2008026494A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008532030A JP5176212B2 (ja) 2006-08-29 2007-08-23 ベーン型圧縮機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-231585 2006-08-29
JP2006231585 2006-08-29

Publications (1)

Publication Number Publication Date
WO2008026494A1 true WO2008026494A1 (fr) 2008-03-06

Family

ID=39135777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/066331 WO2008026494A1 (fr) 2006-08-29 2007-08-23 Compresseur de type à palettes

Country Status (2)

Country Link
JP (1) JP5176212B2 (fr)
WO (1) WO2008026494A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106802A (ja) * 2008-10-31 2010-05-13 Calsonic Kansei Corp ベーンロータリー圧縮機
CN102345603A (zh) * 2010-07-22 2012-02-08 法雷奥日本株式会社 叶片型压缩机
CN103511267A (zh) * 2012-06-20 2014-01-15 株式会社丰田自动织机 级联型叶片压缩机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5278811U (fr) * 1975-12-11 1977-06-13
JPS59174385U (ja) * 1983-05-06 1984-11-21 厚木自動車部品株式会社 ベ−ンポンプ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5278811U (fr) * 1975-12-11 1977-06-13
JPS59174385U (ja) * 1983-05-06 1984-11-21 厚木自動車部品株式会社 ベ−ンポンプ

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106802A (ja) * 2008-10-31 2010-05-13 Calsonic Kansei Corp ベーンロータリー圧縮機
CN102345603A (zh) * 2010-07-22 2012-02-08 法雷奥日本株式会社 叶片型压缩机
JP2012026330A (ja) * 2010-07-22 2012-02-09 Valeo Japan Co Ltd ベーン型圧縮機
EP2410181A3 (fr) * 2010-07-22 2017-05-31 Valeo Japan Co., Ltd. Compresseur à palettes
CN103511267A (zh) * 2012-06-20 2014-01-15 株式会社丰田自动织机 级联型叶片压缩机

Also Published As

Publication number Publication date
JP5176212B2 (ja) 2013-04-03
JPWO2008026494A1 (ja) 2010-01-21

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