EP1674730A2 - Machine à double spirale - Google Patents

Machine à double spirale Download PDF

Info

Publication number
EP1674730A2
EP1674730A2 EP05078071A EP05078071A EP1674730A2 EP 1674730 A2 EP1674730 A2 EP 1674730A2 EP 05078071 A EP05078071 A EP 05078071A EP 05078071 A EP05078071 A EP 05078071A EP 1674730 A2 EP1674730 A2 EP 1674730A2
Authority
EP
European Patent Office
Prior art keywords
wrap
scroll
orbiting
driving shaft
stationary
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP05078071A
Other languages
German (de)
English (en)
Other versions
EP1674730B1 (fr
EP1674730A3 (fr
Inventor
Kazuaki Sato
Toru Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anest Iwata Corp
Original Assignee
Anest Iwata Corp
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 Anest Iwata Corp filed Critical Anest Iwata Corp
Publication of EP1674730A2 publication Critical patent/EP1674730A2/fr
Publication of EP1674730A3 publication Critical patent/EP1674730A3/fr
Application granted granted Critical
Publication of EP1674730B1 publication Critical patent/EP1674730B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C18/0207—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 both members having co-operating elements in spiral form
    • F04C18/0215—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 both members having co-operating elements in spiral form where only one member is moving
    • 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
    • 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
    • F04C23/001—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 of similar working principle
    • 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
    • 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
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions

Definitions

  • the present invention relates to a scroll fluid machine such as a scroll compressor, a scroll vacuum pump, a scroll expander or a scroll blower and especially relates to a double-wrap scroll fluid machine in which an orbiting wrap of an orbiting scroll is allowed to engage with a stationary wrap of a stationary scroll to form a spiral sealed chamber between the two wraps, two fluid-pressure variable units being thus formed in a casing.
  • JP 2002-349456A discloses a scroll fluid machine in which an orbiting scroll is driven with the outer circumference, but in three self-rotation preventing devices, a crankshaft integrally formed with a driving shaft driven with a belt is not exactly synchronized with another crankshaft which is not driven.
  • JP 2004-116471A discloses a scroll fluid machine in which similar disadvantage to the above is involved in orbiting scrolls at both ends of an orbiting shaft which is not driven.
  • An electric motor is disposed as driving source between right and left fluid-pressure variable units to increase its size as a whole. And if malfunction is caused in the fluid-pressure variable unit, it has to be detached with the electric motor for replacement, which is troublesome. Difference in axial load which applies to the orbiting scroll of the two fluid-pressure variable units increases loads acting onto the bearing and orbiting scroll end plate.
  • bearing tubes 3,3 projects from the opposite inner surfaces of side walls 2,2 of a housing 1.
  • the outer ends of two coaxial separate driving shafts 5,5 fit in ball bearings 4,4 in the bearing tubes 3,3.
  • An eccentric axial portion 6 is provided at the outer end of each of the separate driving shafts 5,5.
  • the eccentric axial portion 6 is rotatably put in a boss 9 of an orbiting scroll end plate 8 via a roller bearing 7.
  • a plurality of cooling fins 10 are provided on the inner surface of the orbiting scroll end plate 8 and an orbiting wrap 11 is provided on the outer surface.
  • the orbiting wrap 11 engages with a stationary wrap 13 which projects on a stationary scroll end plate 12 the circumference of which is fixed to the housing 1.
  • a fluid-pressure variable unit 14 is formed on each side of the housing 1.
  • a receiving tube 15 is formed. In the figure, only one of them is shown. The end of a support shaft is fixed in the receiving tube 15.
  • a support tube 17 is provided between the side walls 2 and 2 of the housing 1 along a line between the two receiving tubes 15 and 15.
  • an eccentric tube 20 which is put in a thick portion 18 in the support tube 17, the support shaft 16 is rotatably supported via a bearing 21. Eccentricity of the eccentric tube 20 is equal to that of the eccentric axial portion 6 of the driving shaft 5.
  • the support shaft 16 plays a role of a crankshaft which can eccentrically revolve in the support shaft 17.
  • An outward flange 22 which projects radially is formed at the opposing end faces.
  • the outward flanges 22,22 are spaced from each other to enable an endless driving belt 23 to pass between them obliquely.
  • a tubular coupling 24 freely fits on the driving shaft 5 around one of the flanges 22.
  • An annular web 27 is provided on the inner surface of a driven pulley 26 having an outer circumferential surface 25 on which the belt 23 is wound in the tubular coupling 24.
  • the annular web 27 fits on the driving shaft 5 to allow it to contact the outer side surface of the outward flange 22.
  • a counter weight 28 is provided in the tubular coupling 24.
  • the outward flanges 22, 22 facing each other with a space are connected to the annular web 27 with a screw 29.
  • An endless belt 23 is driven by external power to allow the orbiting scroll of the fluid-pressure variable unit 14 to revolve eccentrically, so that fluid absorbed through the outer side of the fluid-pressure variable unit 14 is pressurized towards a center.
  • the tubular coupling 24 is axially moved and an opening between the facing outward flanges 22 and 22 is exposed to put the endless belt 23 into or take it out of the opening for replacement.
  • the driven pulley 26 may be separate from the tubular coupling 24 and may be disposed on one of the driving shafts 5.
  • axial splines 30,31 may be provided on the inner circumference of a driven pulley 26 of a tubular coupling 24 and the outer circumference of outward flanges 22 of separate driving shafts 5,5 respectively.
  • the spline 30 meshes with the spline 31 to assure firm coupling of drivinf shafts 5 and 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP05078071A 2004-12-27 2005-12-22 Machine à double spirale Expired - Fee Related EP1674730B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004377650A JP4537846B2 (ja) 2004-12-27 2004-12-27 ダブルラップスクロール流体機械

Publications (3)

Publication Number Publication Date
EP1674730A2 true EP1674730A2 (fr) 2006-06-28
EP1674730A3 EP1674730A3 (fr) 2010-04-28
EP1674730B1 EP1674730B1 (fr) 2012-04-11

Family

ID=36123205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05078071A Expired - Fee Related EP1674730B1 (fr) 2004-12-27 2005-12-22 Machine à double spirale

Country Status (3)

Country Link
EP (1) EP1674730B1 (fr)
JP (1) JP4537846B2 (fr)
KR (1) KR100751769B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021051194A1 (fr) * 2019-09-16 2021-03-25 Oxford Gas Compression Systems Inc. Système de réfrigération à faible taux de compression pourvu d'un précompresseur basse pression
CN113187723A (zh) * 2015-08-28 2021-07-30 株式会社日立产机系统 涡旋式流体机械及其维护方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100510414C (zh) * 2007-11-08 2009-07-08 南昌利柯即技术有限公司 涡卷流体机械
JP5958769B2 (ja) * 2013-12-26 2016-08-02 三浦工業株式会社 スクロール流体機械
GB201603331D0 (en) * 2016-02-26 2016-04-13 Edwards Ltd Scroll pump tip sealing
CN113309699B (zh) * 2021-07-05 2022-09-02 珠海格力电器股份有限公司 一种涡旋压缩机和空调器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3814931A1 (de) * 1987-05-14 1988-11-24 Volkswagen Ag Maschinenanordnung
JP2002349456A (ja) * 2001-05-28 2002-12-04 Anest Iwata Corp インタークーラーを有する多段式流体圧縮部を備えたダブルラップ式スクロール流体機械
JP2004116471A (ja) * 2002-09-27 2004-04-15 Tokico Ltd スクロール式流体機械
US20040086407A1 (en) * 2002-11-04 2004-05-06 Enjiu Ke Scroll type of fluid machinery
JP2004308481A (ja) * 2003-04-03 2004-11-04 Anest Iwata Corp 多気筒スクロール流体機械

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314796A (en) 1978-09-04 1982-02-09 Sankyo Electric Company Limited Scroll-type compressor with thrust bearing lubricating and bypass means
JPH09324628A (ja) * 1996-06-07 1997-12-16 Nissan Diesel Motor Co Ltd ファンカップリングの取付構造
JP4319274B2 (ja) 1998-10-30 2009-08-26 株式会社日立製作所 スクロール式流体機械
JP2002174186A (ja) * 2000-12-07 2002-06-21 Sanden Corp ダブルスクロール型流体機械
JP3520513B2 (ja) * 2001-04-12 2004-04-19 株式会社ニイガタマシンテクノ 電動式射出成形機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3814931A1 (de) * 1987-05-14 1988-11-24 Volkswagen Ag Maschinenanordnung
JP2002349456A (ja) * 2001-05-28 2002-12-04 Anest Iwata Corp インタークーラーを有する多段式流体圧縮部を備えたダブルラップ式スクロール流体機械
JP2004116471A (ja) * 2002-09-27 2004-04-15 Tokico Ltd スクロール式流体機械
US20040086407A1 (en) * 2002-11-04 2004-05-06 Enjiu Ke Scroll type of fluid machinery
JP2004308481A (ja) * 2003-04-03 2004-11-04 Anest Iwata Corp 多気筒スクロール流体機械

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113187723A (zh) * 2015-08-28 2021-07-30 株式会社日立产机系统 涡旋式流体机械及其维护方法
CN113187723B (zh) * 2015-08-28 2023-04-28 株式会社日立产机系统 涡旋式流体机械及其维护方法
WO2021051194A1 (fr) * 2019-09-16 2021-03-25 Oxford Gas Compression Systems Inc. Système de réfrigération à faible taux de compression pourvu d'un précompresseur basse pression

Also Published As

Publication number Publication date
EP1674730B1 (fr) 2012-04-11
KR20060074897A (ko) 2006-07-03
KR100751769B1 (ko) 2007-08-23
JP2006183561A (ja) 2006-07-13
JP4537846B2 (ja) 2010-09-08
EP1674730A3 (fr) 2010-04-28

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