EP0882892A1 - Machine du type scroll - Google Patents
Machine du type scroll Download PDFInfo
- Publication number
- EP0882892A1 EP0882892A1 EP98401314A EP98401314A EP0882892A1 EP 0882892 A1 EP0882892 A1 EP 0882892A1 EP 98401314 A EP98401314 A EP 98401314A EP 98401314 A EP98401314 A EP 98401314A EP 0882892 A1 EP0882892 A1 EP 0882892A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fixed
- disc
- bellows
- drive
- shaft
- 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
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
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for 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
- F04C29/0042—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
- F04C29/0057—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
-
- 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
- F04C2240/60—Shafts
- F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft
-
- 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
Definitions
- the present invention relates to a machine of the Scroll type.
- the invention applies to machines of the scroll type operating as a vacuum pump, but may also be suitable as liquid pump or as compressor.
- the object of the invention is to produce a machine with a picked volume, the as small as possible, and comprising an absolute seal between the parts mechanical and fluid circuits.
- the document EP 0 728 947 describes a machine of the Scroll type comprising on the one hand a fixed disc fitted with a spiral and on the other hand a movable disc equipped with a spiral and driven by a circular translational movement and in which the seal between the fluid circuit and the drive parts mechanical is effected by a bellows linked, at one end, to a fixed part of the machine and at the other end to the moving disc undergoing the movement of circular translation.
- the drive motor is located in end, which considerably lengthens the machine and moreover, the bellows also supports torsional forces.
- the object of the present invention is to propose a machine which is very collected, with an absolute seal between the mechanical parts and the circuit of fluid.
- the subject of the invention is therefore a machine for displacing fluid from the Scroll type comprising a fixed disc comprising a spiral working wall and a movable disc, also comprising a spiral working wall cooperating with that of the fixed disc, drive means of the disc movable in a circular translational movement, a sealing bellows linked on the one hand at one of its ends to an organ linked to the translational movement circular of the movable disc and on the other hand, at its other end, to a part stationary of the machine, said bellows separating the fluid circuit, parts mechanical drive of the movable disc, characterized in that the disc fixed is connected on the side opposite the movable disc to a fixed central shaft, comprising a discharge channel, said fixed central shaft being surrounded by said bellows, the space between said bellows and said fixed central shaft constituting a conduit suction, in that a rotary, hollow main shaft surrounds said bellows and is carried by at least one bearing in a fixed frame, one end of said main shaft having an eccentric circular bore cooperating
- Figure 1 shows in axial section a machine for moving Scroll type fluid according to the invention.
- Figure 2 is a partial view of a variant of the invention.
- the active pumping part fixed and mobile discs with the housing enclosing, is omitted.
- Figure 3 is another variant, the active pumping part being also omitted.
- a fluid displacement machine Scroll type is particularly good suitable to operate as a vacuum pump, but can operate as compressor or as a liquid fluid pump. It includes a fixed frame 1 in three assembled parts: a casing 1A, and a body in two parts 1B and 1C. AT this frame is fixed a manifold 2 equipped with a suction flange 3 and a flange repression 4.
- This frame contains the whole machine and in particular its parts active pumping located in the housing 1A and comprising a fixed disc 5 comprising a spiral wall 6 and a movable disc 7 also comprising a spiral wall 8 cooperating with that of the fixed disc. These two walls in spiral 6 and 8 with their disc delimit a working volume 9.
- the fixed disc 5 is connected, on the opposite side to the movable disc 7, to the frame 1 by a fixed central shaft 10 which, in the example described, is in one piece with the part 1C of the body of the frame 1.
- This fixed central shaft 10 is hollow and contains a tubing 11 discharge leading into a discharge compartment 12 of the manifold 2 to which the discharge flange 4 is fixed.
- the movable disc 7 is connected by its periphery, beyond its wall in spiral 8 and around the fixed disc 5, at the periphery of a connecting flange 13.
- This connecting flange 13, with the movable disc 7, constitutes a sealed housing enclosing the fixed disc 5.
- the central part of the flange 13 is open and leaves pass the fixed central shaft 10.
- This central part of the flange 13 is linked, or else, as in the case of the figure, is in one piece with an eccentric hollow axis 14 itself fixed so sealed at one end of a sealing bellows 15 surrounding the central shaft fixed 10 and the other end of which is fixed to part 1C of the body of the frame 1.
- the space 16 between the sealing bellows 15 and the fixed central shaft 10 constitutes a suction channel communicating with a suction compartment 17 of the manifold 2 to which the suction flange 3 is fixed.
- the eccentric hollow axis 14 journals in a bore 18 made in a rotary main shaft 19 with axis 20.
- the bore 18 has its axis 21 offset by relative to the axis 20 of rotation of the rotary main shaft 19.
- the rotation of the shaft main rotary 19 thus causes, associated with an anti-rotation means any, a movement of circular translation, without rotation of the axis eccentric 14 and therefore of the connecting flange 13 and of the movable disc 7.
- this anti-rotation is ensured by a gasket Oldham 22, located between the connecting flange 13 and part 1B of the frame body 1 which prevents any rotation of the movable disc 7 and its connecting flange 13.
- the rotary main shaft 19 is hollow and surrounds the sealing bellows 15. It is supported by bearings 23 and 24 mounted respectively in the part 1B and part 1C of the body of the frame 1.
- the rotary drive of this main rotary shaft 19 is carried out by an electric motor whose rotor 25 is connected to the shaft 19 and whose stator 26 is linked to the frame 1.
- a tubular sealing jacket 27 separates the stator 26 from all moving parts.
- the movable disc 7, linked to the connecting flange 13 is positioned axially precisely by a shoe system 28 rubbing between two lateral stops 29, 30.
- the shoe 28 forms a circular ring, linked to the housing 7-13 (movable disc 7, connecting flange 13) and surrounding externally this housing and it rubs between the two fixed lateral stops linked to the frame 1: the stop 29 and a shim stop 30.
- the precise adjustment of the axial positioning of the disc mobile 7 is effected by the choice of the thickness of the wedge stopper 30.
- the shoe 28 has holes 31 for oil passage.
- FIG. 2 is a variant in which the rotary main shaft 19, unlike FIG. 1 is mounted cantilevered on a single bearing 32, prestressed, with two rows of balls mounted in part 1B of the body of the built. This simplifies the pump.
- collector 2 has not been represented as well as the casing 1A, the discs 5, 7 and the device for axial positioning.
- FIG. 3 is another variant in which, as in FIG. 2, the rotary main shaft 19 is cantilevered on a single bearing 32; but in addition, the eccentric hollow axis 14 is mounted in the eccentric bore 18 of axis 21 of the rotary main shaft 19 by means of a rolling bearing needle 33.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims (8)
- Machine du type Scroll comportant un disque fixe (5) comprenant une paroi de travail en spirale (6) et un disque mobile (7) comprenant également une paroi de travail en spirale (8) coopérant avec celle du disque fixe, des moyens d'entraínement du disque mobile dans un mouvement de translation circulaire, un soufflet d'étanchéité (15) lié d'une part à une de ses extrémités à un organe (14) lié au mouvement de translation circulaire du disque mobile (7) et d'autre part, à son autre extrémité, à une partie fixe (1C) de la machine, ledit soufflet (15) séparant le circuit de fluide, des parties mécaniques d'entraínement du disque mobile, caractérisée en ce que le disque fixe (5) est lié du côté opposé au disque mobile (7), à un arbre central fixe (10) comportant un canal de refoulement (11), ledit arbre central étant entouré dudit soufflet (15), l'espace (16) entre ledit soufflet et ledit arbre central fixe constituant un conduit d'aspiration, en ce qu'un arbre principal rotatif (19) creux, entoure ledit soufflet (15) et est porté par au moins un palier (23, 24-32) dans un bâti fixe (1), une extrémité dudit arbre principal (19) comportant un alésage circulaire excentré (18) coopérant avec un organe d'entraínement (14) lié au disque mobile (7), lesdits moyens d'entraínement comportant un rotor (25) de moteur électrique lié audit arbre principal rotatif (19) et l'entourant, et un stator fixe (26) entourant ledit rotor.
- Machine selon la revendication 1, caractérisée en ce qu'une chemise d'étanchéité (27) sépare le stator du rotor de moteur d'entraínement.
- Machine selon l'une des revendications 1 ou 2, caractérisée en ce qu'un joint de Oldham (22) coopère avec une partie fixe (1B) de la machine et avec une partie (13) animée dudit mouvement de translation circulaire, assurant un maintien fixe de l'orientation angulaire du disque mobile (7) par rapport au disque fixe (5).
- Machine selon l'une des revendications 1 à 3, caractérisée en ce que ledit organe d'entraínement (14) est solidaire d'un flasque de liaison (13) relié par sa périphérie autour du disque fixe (5), au disque mobile (7) au delà de sa paroi en spirale (8), le disque mobile (7) et le flasque de liaison (13) formant un boítier enfermant le disque fixe (5).
- Machine selon la revendication 4, caractérisée en ce que le positionnement axial dudit boítier (7-13) est effectué, à l'extérieur du volume interne dudit boítier, par un système de patin (28) frottant entre deux butées axiales ( 29, 30), l'un des deux organes, patin ou butées axiales étant solidaire du bâti et l'autre dudit boítier (7-13).
- Machine selon la revendication 4, caractérisée en ce que ledit organe d'entraínement (14) et le flasque de liaison (13) sont réalisés en une seule pièce.
- Machine selon l'une des revendications 1 à 6, caractérisée en ce que ledit arbre principal rotatif (19) est porté dans ledit bâti (1B) en porte à faux par un seul roulement (32).
- Machine selon l'une des revendications précédentes, caractérisée en ce que ledit organe d'entraínement (14) coopère avec ledit alésage circulaire excentré (18) par l'intermédiaire d'un palier à roulement (33).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9706965 | 1997-06-05 | ||
FR9706965A FR2764347B1 (fr) | 1997-06-05 | 1997-06-05 | Machine du type scroll |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0882892A1 true EP0882892A1 (fr) | 1998-12-09 |
EP0882892B1 EP0882892B1 (fr) | 2003-08-06 |
Family
ID=9507641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98401314A Expired - Lifetime EP0882892B1 (fr) | 1997-06-05 | 1998-06-02 | Machine du type scroll |
Country Status (5)
Country | Link |
---|---|
US (1) | US6027317A (fr) |
EP (1) | EP0882892B1 (fr) |
JP (1) | JP4101932B2 (fr) |
DE (1) | DE69816911T2 (fr) |
FR (1) | FR2764347B1 (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050063850A1 (en) * | 2003-09-18 | 2005-03-24 | Liepert Anthony G. | Scroll pump using isolation bellows and synchronization mechanism |
GB0600588D0 (en) * | 2006-01-12 | 2006-02-22 | Boc Group Plc | Scroll-type apparatus |
WO2009091996A2 (fr) * | 2008-01-16 | 2009-07-23 | Emerson Climate Technologies, Inc. | Machine de défilement |
US7988433B2 (en) | 2009-04-07 | 2011-08-02 | Emerson Climate Technologies, Inc. | Compressor having capacity modulation assembly |
US8974197B2 (en) * | 2010-02-16 | 2015-03-10 | Halla Visteon Climate Control Corporation | Compact structure for an electric compressor |
ITMI20111729A1 (it) | 2011-09-26 | 2013-03-27 | Shock S R L E | Metodo e sistema per il controllo di stabilità di un veicolo a due ruote mediante sospensione elettronicamente modulabile |
KR101462941B1 (ko) | 2012-03-07 | 2014-11-19 | 엘지전자 주식회사 | 횡형 스크롤 압축기 |
US9651043B2 (en) | 2012-11-15 | 2017-05-16 | Emerson Climate Technologies, Inc. | Compressor valve system and assembly |
US9249802B2 (en) | 2012-11-15 | 2016-02-02 | Emerson Climate Technologies, Inc. | Compressor |
US9790940B2 (en) | 2015-03-19 | 2017-10-17 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
US10598180B2 (en) | 2015-07-01 | 2020-03-24 | Emerson Climate Technologies, Inc. | Compressor with thermally-responsive injector |
US10801495B2 (en) | 2016-09-08 | 2020-10-13 | Emerson Climate Technologies, Inc. | Oil flow through the bearings of a scroll compressor |
US10890186B2 (en) * | 2016-09-08 | 2021-01-12 | Emerson Climate Technologies, Inc. | Compressor |
US10753352B2 (en) | 2017-02-07 | 2020-08-25 | Emerson Climate Technologies, Inc. | Compressor discharge valve assembly |
US11022119B2 (en) | 2017-10-03 | 2021-06-01 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
US10962008B2 (en) | 2017-12-15 | 2021-03-30 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
JP6698726B2 (ja) * | 2018-03-12 | 2020-05-27 | 三菱重工業株式会社 | 両回転スクロール型圧縮機 |
US10995753B2 (en) | 2018-05-17 | 2021-05-04 | Emerson Climate Technologies, Inc. | Compressor having capacity modulation assembly |
US11655813B2 (en) | 2021-07-29 | 2023-05-23 | Emerson Climate Technologies, Inc. | Compressor modulation system with multi-way valve |
WO2023125948A1 (fr) * | 2021-12-31 | 2023-07-06 | 丹佛斯(天津)有限公司 | Compresseur |
WO2023125899A1 (fr) * | 2021-12-31 | 2023-07-06 | 丹佛斯(天津)有限公司 | Compresseur |
DE102022111379A1 (de) | 2022-05-06 | 2023-11-09 | OET GmbH | Verdrängermaschine nach dem Spiralprinzip |
DE102022111378A1 (de) | 2022-05-06 | 2023-11-09 | OET GmbH | Verdrängermaschine nach dem Spiralprinzip |
US11846287B1 (en) | 2022-08-11 | 2023-12-19 | Copeland Lp | Scroll compressor with center hub |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1210922A (fr) * | 1958-09-12 | 1960-03-11 | Alsacienne Constr Meca | Dispositif de capsulisme pour détendeurs, compresseurs ou analogues |
DE2225327A1 (de) * | 1971-06-01 | 1972-12-14 | Vulliez P | Vakuumpumpe |
US3817664A (en) | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
US4677949A (en) * | 1985-08-19 | 1987-07-07 | Youtie Robert K | Scroll type fluid displacement apparatus |
EP0428729A1 (fr) | 1989-02-28 | 1991-05-29 | Zexel Corporation | Machine a rouleaux de compression de fluides |
EP0728947A1 (fr) | 1995-02-24 | 1996-08-28 | S.B.P.V. ( Societe Des Brevets P. Vulliez) | Pompe à vide à cycle de translation circulaire |
FR2736999A1 (fr) * | 1995-07-17 | 1997-01-24 | Centre Nat Rech Scient | Machine de detente cryogenique a spirale |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2141402B1 (fr) * | 1971-06-01 | 1973-06-29 | Vulliez Paul | |
JPH01150980A (ja) * | 1987-12-08 | 1989-06-13 | Mitsubishi Electric Corp | タイムチャート読取装置 |
JP3136820B2 (ja) * | 1993-01-26 | 2001-02-19 | 株式会社日立製作所 | スクロール形流体機械 |
JPH07247968A (ja) * | 1994-03-09 | 1995-09-26 | Daikin Ind Ltd | スクロール圧縮機 |
JPH07259757A (ja) * | 1994-03-24 | 1995-10-09 | Sanyo Electric Co Ltd | 回転式スクロール圧縮機 |
-
1997
- 1997-06-05 FR FR9706965A patent/FR2764347B1/fr not_active Expired - Fee Related
-
1998
- 1998-06-02 DE DE69816911T patent/DE69816911T2/de not_active Expired - Fee Related
- 1998-06-02 EP EP98401314A patent/EP0882892B1/fr not_active Expired - Lifetime
- 1998-06-04 US US09/090,148 patent/US6027317A/en not_active Expired - Fee Related
- 1998-06-05 JP JP15741998A patent/JP4101932B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1210922A (fr) * | 1958-09-12 | 1960-03-11 | Alsacienne Constr Meca | Dispositif de capsulisme pour détendeurs, compresseurs ou analogues |
DE2225327A1 (de) * | 1971-06-01 | 1972-12-14 | Vulliez P | Vakuumpumpe |
US3817664A (en) | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
US4677949A (en) * | 1985-08-19 | 1987-07-07 | Youtie Robert K | Scroll type fluid displacement apparatus |
EP0428729A1 (fr) | 1989-02-28 | 1991-05-29 | Zexel Corporation | Machine a rouleaux de compression de fluides |
EP0728947A1 (fr) | 1995-02-24 | 1996-08-28 | S.B.P.V. ( Societe Des Brevets P. Vulliez) | Pompe à vide à cycle de translation circulaire |
FR2736999A1 (fr) * | 1995-07-17 | 1997-01-24 | Centre Nat Rech Scient | Machine de detente cryogenique a spirale |
Also Published As
Publication number | Publication date |
---|---|
DE69816911T2 (de) | 2004-07-15 |
FR2764347B1 (fr) | 1999-07-30 |
EP0882892B1 (fr) | 2003-08-06 |
JPH1172093A (ja) | 1999-03-16 |
FR2764347A1 (fr) | 1998-12-11 |
US6027317A (en) | 2000-02-22 |
DE69816911D1 (de) | 2003-09-11 |
JP4101932B2 (ja) | 2008-06-18 |
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