EP1818541B1 - Compresseur à spirales monté horizontalement - Google Patents

Compresseur à spirales monté horizontalement Download PDF

Info

Publication number
EP1818541B1
EP1818541B1 EP20070002715 EP07002715A EP1818541B1 EP 1818541 B1 EP1818541 B1 EP 1818541B1 EP 20070002715 EP20070002715 EP 20070002715 EP 07002715 A EP07002715 A EP 07002715A EP 1818541 B1 EP1818541 B1 EP 1818541B1
Authority
EP
European Patent Office
Prior art keywords
base plate
seal member
pressure
movable
pressure region
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.)
Expired - Fee Related
Application number
EP20070002715
Other languages
German (de)
English (en)
Other versions
EP1818541A1 (fr
Inventor
Masao Iguchi
Susumu Tarao
Izuru Shimizu
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries 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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP1818541A1 publication Critical patent/EP1818541A1/fr
Application granted granted Critical
Publication of EP1818541B1 publication Critical patent/EP1818541B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • 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
    • F04C29/026—Lubricant separation

Definitions

  • the pressure in the compression chambers falls, and the positive-pressure force applied to the movable scroll member becomes lower than a back-pressure force which results from the pressure in the back-pressure chamber and acts in the thrust direction.
  • the movable scroll member is moved toward the front wall of the fixed base plate.
  • the clearance at the sliding portion between the movable scroll member and the front wall of the fixed scroll member becomes minimum, thereby preventing the refrigerant gas from being introduced from the discharge-pressure region to the back-pressure region.
  • the pressure in the back-pressure chamber tends to fall.
  • Japanese Patent Application Publication No. 8-121366 discloses a vertical-mounted scroll compressor in which a seal member is provided dividing the back-pressure region in the housing into two spaces.
  • the seal member has a groove for supplying lubricating oil to the sliding portion between the fixed and movable scroll members.
  • the quantity of the lubricating oil supplied to the sliding portion is adjusted by changing the number, the width and the depth of the groove.
  • the scroll compressor of Japanese Patent Application Publication No. 8-121366 includes the seal member with the groove.
  • the scroll compressor is of vertical-mounted type and does not cause such a problem concerning the atmosphere in the back-pressure region and the suction-pressure region as in the horizontally-mounted scroll compressor.
  • the groove of the seal member does not connect the back-pressure region to the suction-pressure region, and Japanese Patent Application Publication No. 8-121366 does not disclose the idea of controlling the back pressure in the back-pressure region by using the groove of the seal member.
  • the back-pressure chamber 61 is defined by the back surface of the movable base plate 36 and the inner wall surface of the shaft support 14.
  • a shaft-seal member 62 is disposed in the shaft support 14 for sealing between the back-pressure chamber 61 and the motor chamber 20 and held by a retaining ring 63 which is fitted in the inner wall surface of the shaft support 14.
  • the seal member 34 is provided between the outer peripheral wall 37 of the movable base plate 36 and the shaft support 14.
  • the groove portions 34a through 34d connects the back-pressure chamber 61 to the suction chamber 43 even when there is no gap between the outer peripheral wall 37 of the movable base plate 36 and the shaft support 14. Since the pressure in the suction chamber 43 is lower than that in the back-pressure chamber 61, the refrigerant gas in the back-pressure chamber 61 flows out to the suction chamber 43 therethrough while being throttled by the groove portions 34a through 34d. Thus, the back pressure falls and the back-pressure force urging the movable scroll member 35 toward the fixed scroll member 25 is decreased.
  • a fixed scroll member 76 is accommodated and fixed in the first housing component 72 adjacently to the opening end thereof.
  • the fixed scroll member 76 includes a fixed base plate 77, a fixed scroll wall 78 extending from the front surface (or a left surface in FIG 6 ) of the fixed base plate 77, and an outer peripheral wall 79 extending from the outer periphery of the front surface of the fixed base plate 77.
  • a discharge chamber 80 as a discharge-pressure region is defined in the second housing component 73 on the back side (or a right side in FIG 6 ) of the fixed base plate 77.
  • a movable scroll member 81 is disposed between the fixed scroll member 76 and the shaft support 74.
  • the shaft support 74 corresponds to a slide-contact body of the invention which is in slide contact with the back surface of the movable scroll member 81.
  • the movable base plate 82 of the movable scroll member 81 is moved away from the fixed base plate 77 by the compression force.
  • the movable base plate 82 is brought into contact with the shaft support 74, thereby preventing the refrigerant gas from flowing through between the outer peripheral wall of the movable base plate 82 and the shaft support 74.
  • a gap exists between the front surface of the movable scroll member 81 and the front surface of the fixed scroll member 76.

Landscapes

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

Claims (11)

  1. Compresseur à spirale monté horizontalement (10, 70) comportant :
    un carter (11) ayant une région de pression de décharge (48, 49, 50, 80) et une région de pression d'aspiration (20, 43, 75, 86) ;
    un élément formant spirale fixe (25, 76) ayant une plaque de base fixe (26, 77) qui est fixée dans le carter (11) et une paroi de spirale fixe (28, 78) qui s'étend à partir d'une surface avant de la plaque de base fixe (26, 77) ;
    un élément formant spirale mobile (35, 81) ayant une plaque de base mobile (36, 82) et une paroi de spirale mobile (38, 83) qui s'étend à partir d'une surface avant de la plaque de base mobile (36, 82), les parois de spirale fixe et mobile (28, 78, 38, 83) étant en prise l'une avec l'autre ;
    une chambre de compression (41, 85) formée entre les éléments formant spirales fixe et mobile (25, 76, 35, 81), la chambre de compression (41, 85) étant déplacée radialement vers l'intérieur tout en ayant un volume qui diminue par mouvement orbital de l'élément formant spirale mobile (35, 81) pour comprimer un fluide compressible ;
    un corps de contact coulissant (14, 74) étant prévu de manière à être en contact coulissant avec une surface arrière de la plaque de base mobile (36, 82) ; et
    une région de contre-pression (61, 82a) étant définie sur un côté arrière de la plaque de base mobile (36, 82) et reliée à la région de pression de décharge (48, 49, 50, 80) à travers un passage d'introduction (55, 57, 60, 77b, 92, 95),
    caractérisé en ce que ;
    un premier élément d'étanchéité annulaire (34, 90, 101, 102, 103, 105) est prévu entre la plaque de base mobile (36, 82) et le corps de contact coulissant (14, 74) pour assurer l'étanchéité entre la région de contre-pression (61, 82a) et la région de pression d'aspiration (20, 43, 75, 86), en ce que le premier élément d'étanchéité (34, 90, 101, 102, 103, 105) a une pluralité de premières parties de rainure (34a, 34b, 34c, 34d, 90a, 101a, 101b, 101c, 102a, 102b, 102c, 102d, 102e, 103a, 103b, 105c) qui relient la région de contre-pression (61, 82a) à la région de pression d'aspiration (20, 43, 75, 86), et
    en ce que la distance la plus courte le long d'une circonférence du premier élément d'étanchéité (34, 90, 101, 102, 103, 105) entre deux parties de rainure quelconques des premières parties de rainure (34a , 34b, 34c, 34d, 90a, 101a, 101b, 101c, 102a, 102b, 102c, 102d, 102e, 103a, 103b, 105c) qui sont les plus éloignées l'une de l'autre est fixée à pas moins d'un tiers d'une longueur circonférentielle du premier élément d'étanchéité (34, 90, 101, 102, 103, 105).
  2. Compresseur à spirale monté horizontalement (10, 70) selon la revendication 1, dans lequel les premières parties de rainure (34a, 34b, 34c, 34d, 90a, 101a, 101b, 101c, 102a, 102b, 102c, 102d, 102e, 103a, 103b, 105c) sont espacées à intervalles réguliers le long de la circonférence du premier élément d'étanchéité (34, 90, 101, 102, 103, 105).
  3. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 1 à 2, dans lequel chacune des premières parties de rainure (34a, 34b, 34c, 34d, 90a, 101a, 101b, 101c, 102a, 102b, 102c, 102d, 102e, 103a, 103b, 105c) comporte une pluralité de rainures espacées (105a).
  4. compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 1 à 3, dans lequel un deuxième élément d'étanchéité annulaire (91) est prévu entre la plaque de base mobile (36, 82) et le corps de contact coulissant (14, 74) et a un diamètre plus petit que celui du premier élément d'étanchéité (34, 90, 101, 102, 103, 105), le deuxième élément d'étanchéité (91) a une pluralité de deuxièmes parties de rainure (91a) qui relient la région de contre-pression (61, 82a) à la région de pression d'aspiration (20, 43, 75, 86).
  5. Compresseur à spirale monté horizontalement (10, 70) selon la revendication 4, dans lequel la distance la plus courte le long d'une circonférence du deuxième élément d'étanchéité (91) entre deux parties de rainure quelconques des deuxièmes parties de rainure (91a) qui sont les plus éloignées l'une de l'autre, est fixée à pas moins d'un tiers d'une longueur circonférentielle du deuxième élément d'étanchéité (91).
  6. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 4 à 5, dans lequel les deuxièmes parties de rainure (91a) sont espacées à intervalles réguliers le long de la circonférence du premier élément d'étanchéité (91).
  7. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 4 à 6, dans lequel chacune des deuxièmes parties de rainure (91a) comporte une pluralité de rainures espacées.
  8. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 1 à 7, dans lequel un séparateur d'huile (53) est prévu dans la région de pression de décharge (48, 49, 50, 80), le passage d'introduction (55, 57, 60, 77b, 92, 95) permettant le passage de l'huile qui est collectée par le séparateur d'huile (53) à travers celui-ci.
  9. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 1 à 8, dans lequel la région de contre-pression (61, 82a) est un évidement (82a) qui est formé dans la surface arrière de la plaque de base mobile (36, 82).
  10. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 1 à 9, dans lequel le passage d'introduction (55, 57, 60, 77b, 92, 95) comporte un trou (57, 92) qui s'étend à travers la plaque de base fixe (26, 77), un espace qui est formé entre la plaque de base fixe (26, 77) et la plaque de base mobile (36, 82), et un trou (60, 95) qui s'étend à travers la plaque de base mobile (36, 82).
  11. Compresseur à spirale monté horizontalement (10, 70) selon l'une quelconque des revendications 1 à 10, dans lequel le corps de contact coulissant (14, 74) est un support d'arbre (14, 74) qui est reçu dans le carter (11) et qui supporte en rotation un arbre rotatif (17).
EP20070002715 2006-02-10 2007-02-08 Compresseur à spirales monté horizontalement Expired - Fee Related EP1818541B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006033155A JP4635893B2 (ja) 2006-02-10 2006-02-10 横置き型スクロール圧縮機

Publications (2)

Publication Number Publication Date
EP1818541A1 EP1818541A1 (fr) 2007-08-15
EP1818541B1 true EP1818541B1 (fr) 2014-06-25

Family

ID=38015303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070002715 Expired - Fee Related EP1818541B1 (fr) 2006-02-10 2007-02-08 Compresseur à spirales monté horizontalement

Country Status (2)

Country Link
EP (1) EP1818541B1 (fr)
JP (1) JP4635893B2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5408073B2 (ja) * 2010-08-17 2014-02-05 株式会社豊田自動織機 圧縮機
KR102067141B1 (ko) * 2015-03-19 2020-01-17 한온시스템 주식회사 압축기의 유분리 장치
KR102549777B1 (ko) * 2016-12-21 2023-06-30 삼성전자주식회사 스크롤 압축기
JP6753355B2 (ja) 2017-05-16 2020-09-09 株式会社デンソー スクロールコンプレッサ
JP7052563B2 (ja) * 2018-05-28 2022-04-12 株式会社デンソー 圧縮機
KR20200095994A (ko) * 2019-02-01 2020-08-11 엘지전자 주식회사 결합 구조가 개선된 스크롤 압축기
JP7063299B2 (ja) * 2019-03-27 2022-05-09 株式会社豊田自動織機 スクロール型圧縮機
KR101999325B1 (ko) * 2019-05-27 2019-07-12 한온시스템 주식회사 스크롤 압축기

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06336986A (ja) * 1993-05-28 1994-12-06 Hitachi Ltd スクロール圧縮機の給油機構
US5383772A (en) * 1993-11-04 1995-01-24 Tecumseh Products Company Scroll compressor stabilizer ring
JP3344843B2 (ja) * 1994-10-24 2002-11-18 株式会社日立製作所 スクロール圧縮機
JPH0996363A (ja) * 1995-09-29 1997-04-08 Ntn Corp シールリング
JPH10159755A (ja) * 1996-11-29 1998-06-16 Matsushita Electric Ind Co Ltd スクロール圧縮機
JP2000136782A (ja) * 1998-10-30 2000-05-16 Denso Corp スクロール型圧縮機
JP4007189B2 (ja) * 2002-12-20 2007-11-14 株式会社豊田自動織機 スクロールコンプレッサ
JP4329528B2 (ja) * 2003-12-19 2009-09-09 株式会社豊田自動織機 スクロールコンプレッサ

Also Published As

Publication number Publication date
JP4635893B2 (ja) 2011-02-23
JP2007211702A (ja) 2007-08-23
EP1818541A1 (fr) 2007-08-15

Similar Documents

Publication Publication Date Title
EP1818541B1 (fr) Compresseur à spirales monté horizontalement
US6537043B1 (en) Compressor discharge valve having a contoured body with a uniform thickness
EP2781753B1 (fr) Compresseur à spirale avec décharge de pression arrière
EP1344937B1 (fr) Compresseur à spirales avec soupape de refoulement
EP1775475B1 (fr) Machine à volutes
EP0326189B1 (fr) Compresseur à volutes imbriquées avec mécanisme de réglage du déplacement
US7195470B2 (en) Scroll compressor having a supply passage connecting the back pressure chamber to discharge pressure region and passing a clearance at a sliding portion
EP1519047B1 (fr) Compresseur à spirales avec soupape de refoulement
EP1382854A2 (fr) Dispositif de déplacement de fluide du type à spirales à rapport de deux volumes propres
US9541083B2 (en) Scroll compressor including communication hole with improved back pressure chamber and back pressure hole locations
KR100916554B1 (ko) 올덤 커플링을 위한 클리어런스를 가진 스크롤 압축기
WO2009035641A2 (fr) Compresseur comportant une soupape d'arrêt
US20130089451A1 (en) Scroll compressor with supporting member in axial direction
KR102400430B1 (ko) 스크롤 압축기
EP2864635B1 (fr) Compresseur à volute équipé d'un bloc coulissant
US20060093506A1 (en) Scroll compressor
JP4122339B2 (ja) スクロール圧縮機
US8172560B2 (en) Fluid machinery having annular back pressure space communicating with oil passage
KR0160290B1 (ko) 스크로울형 압축기용 축방향 밀봉기구
EP2947320B1 (fr) Compresseur à spirale
US5702241A (en) Scroll-type fluid displacement apparatus having sealing means for central portions of the wraps
KR100557061B1 (ko) 스크롤 압축기
KR102232272B1 (ko) 전동식 압축기
US6336798B1 (en) Rotation preventing mechanism for scroll-type fluid displacement apparatus
JP3630769B2 (ja) スクロール圧縮機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070208

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid

Designated state(s): DE FR IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140220

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007037289

Country of ref document: DE

Effective date: 20140807

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007037289

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140625

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20150326

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20151030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150302

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 602007037289

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180123

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007037289

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190903