EP0728948B1 - Pompe à vide à spirales - Google Patents
Pompe à vide à spirales Download PDFInfo
- Publication number
- EP0728948B1 EP0728948B1 EP96400386A EP96400386A EP0728948B1 EP 0728948 B1 EP0728948 B1 EP 0728948B1 EP 96400386 A EP96400386 A EP 96400386A EP 96400386 A EP96400386 A EP 96400386A EP 0728948 B1 EP0728948 B1 EP 0728948B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- axis
- fixed
- disc
- movable
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
-
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
-
- 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
- F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
-
- 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
- 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
- F04C18/0223—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 with symmetrical double wraps
Definitions
- the present invention relates to a pump, in particular a vacuum pump, with a cycle. of circular translation.
- a translation cycle vacuum pump circular comprising a fixed body having a fixed disc which has on at least one of its sides a spiral-shaped projection, an opposite movable disc with fixed disc and also having at least one spiral-shaped projection interspersed with the spiral-shaped projection of the fixed disc and similarly angular amplitude, a mechanism by which the movable disc is connected to said body and supported by it, to command a translational movement circular of the movable disc with respect to said body during operation of the pump, motor means for driving the movable disc by through a pump shaft and make it perform said movement of circular translation, said pump also comprising a limiting device of circular translation deflection guiding the movable disc in its circular translational movement avoiding any twisting.
- a pump of this type is for example described in FR-A-2 141 402. If such a pump according to this document gives excellent results, it has however the inconvenience of having many parts and being bulky especially radially taking into account in particular the fact that said mechanism consists of three cranks so coupled synchronized with each other and arranged at the periphery of the pump, these cranks ensuring by itself the limitation of the travel of circular translation.
- a translation cycle vacuum pump circular comprising a fixed body having at least one fixed disc which has on one of its sides a spiral-shaped projection, a movable disc opposite the fixed disc and also having at least one spiral-shaped projection interspersed with the spiral-shaped projection of the fixed disc and similarly angular amplitude, a mechanism by which the movable disc is connected to said body and supported by it, to command a translational movement circular of the movable disc with respect to said body during operation of the pump, motor means for driving the movable disc by through a pump shaft and make it perform said movement of circular translation, said pump also comprising a limiting device of circular translation movement, said mechanism comprising at at least one bearing carried by the pump shaft, said pump shaft being in central position relative to the fixed body.
- a pump of the above type includes a travel limiting device circular translation consisting of a crown having fixed teeth between which overlap teeth secured to the movable disc.
- a travel limiting device circular translation consisting of a crown having fixed teeth between which overlap teeth secured to the movable disc.
- the invention provides an angular deflection device which is more easy to carry out and which ensures perfect guiding of the translational movement circular of the movable disc, without any twist.
- the fixed teeth are limited by cylindrical surfaces with an axis parallel to the axis of the pump and the section of which, by a plane perpendicular to said axis, is composed of arcs of circles of radii R and r, respectively, whose centers are on a circle of radius R p centered on said axis, arcs extending inside and arcs extending outside said circle of centers.
- a limiting device thus designed is capable of ensuring the travel limitation or anti-torsion function, even when the pump is dimensioned to generate large volumes which can go up to 100 m 3 / h, or even 500 m 3 / h, and even beyond.
- the movable teeth are limited by surfaces cylindrical with an axis parallel to the axis of the pump and whose section, by a plane perpendicular to said axis, is composed of arcs of the same circles extending outside and inside, respectively, of said circle of centers.
- the radius of the crank is adjustable.
- the axis of the passage which receives the end of the shaft of pump is slightly offset from the axis of the outer surface of the bearing in which said passage is formed and which supports the movable disc by means of bearings received by said outer surface;
- the eccentric bearing of the pump shaft has its axis offset with respect to the axis of a ring which surrounds it and which receives a bearing for a bearing hub.
- said mechanism comprises two bearings, both carried by the pump shaft, and spaced axially.
- the pump also comprises a metal bellows seal surrounding the pump shaft and one end of which is integral with the movable disc and the other of the fixed body.
- the pump only comprises a single spiral projection on the fixed disc and a single spiral projection on the movable disc.
- the spiral projections of the fixed disc and the projections spiral of the moving disc are separated by a small constant play whatever the position of the moving disc.
- a pump according to the invention comprises a fixed body 100 consisting of a sleeve 111, a spacer 112 and a flange 114, assembled by screws such as 115, with interposition of seals 116, 117; the flange 114 presents, side facing inward, i.e. towards sleeve 111, a protrusion spiral shape 123, with which a projection in the form of a spiral 133 of the same angular amplitude presented by a movable plate 131 on one side of this plate 131; on the other side of this movable tray, this one supports thanks to screws 171 a barrel 170 of generally cylindrical shape.
- spiral projections 123 and 133 are separated by a small clearance constant whatever the position of the moving disc 131; in figure 3, this clearance, usually in the range of tens of microns, has been exaggerated to be visible.
- the barrel 170 On the side of its end by which it is fixed to the plate 131, the barrel 170 has a radial rim 181 extended towards the inside of the barrel 170 by a ring 182 supporting rolling means 148 installed inside the ring 182; the rolling means 148 surround a bearing 147 on which they are mounted, said bearing 147 internally having a passage 183 of frustoconical shape with the largest diameter opening located towards the inside of the bole 170.
- the sleeve 111 On the side opposite to that which cooperates with the spacer 112, the sleeve 111 has radial arms 177 directed towards the inside of the sleeve 111, for example three radial arms 177 spaced 120 degrees apart, only one being visible in Figure 3; from the inner end of the arms 177 extends axially, along the axis 155 of the pump, and inside the sleeve 111, a barrel 180 of generally cylindrical shape, the barrel 180 also extending inside the barrel 170; near its innermost end by relative to the sleeve 111, the barrel 180 supports from the outside means of bearing 184.
- the radial fingers 177 of the sleeve 111 support by screws 176 a casing 174 connecting the pump to a motor 120 partially shown which shows at 121 the end of the motor shaft; the housing 174 has an inner wall 175 carrying a rolling bearing 173.
- the pump includes a pump shaft 140; the pump shaft 140 has a frustoconical end 144, the shape of which is complementary to that of passage 183 of bearing 147; the bearing 147 is integral with the end 144 of the pump shaft 140 by fitting and tightening in 185; the other end 172 of the shaft 140 is intended for the rotational drive of the shaft 140 by the motor 120; to do this, the motor shaft 121 is integral, thanks to a key 122, in rotation of a driving nut 129, the end 172 of the pump shaft 140 being integral, thanks to a key 188, in rotation of a driven nut 186; the leading nuts 129 and led 186 carry fingers 128, 187 respectively connected by a flexible coupling 149.
- the pump shaft 140 has two cylindrical bearings having for axis the axis 155 of the pump: a bearing 179 in its central region cooperating with the rolling means 184 and a range 189 close to its end 172 and supported by the rolling bearing 173; the tapered end 144 axis 140 has axis 165 as axis which is offset from axis 155 while staying parallel to it, and which is the axis of the bole 170.
- a device for limiting the movement of circular translation 200 which, according to the invention, consists of a ring 201 having teeth 202 integral with the frame 100 between which nests 212 teeth formed at the 'free transverse end of barrel 170 mobile; as is better visible in Figures 3 to 5, the fixed teeth 202 and mobile 212 have semi-circular profiles constructed from circles of radii R and r whose centers are on a so-called primitive circle of radius R p ; more precisely, the fixed teeth 202 are limited by cylindrical surfaces with an axis parallel to the axis 155 and the section of which, by a plane perpendicular to the axis 155, is composed of arcs of circles 203, 204 of radii respectively R and r, the centers of which are on a circle 205 of radius R p and centered on the axis 155, the arcs 203 extending inside the circle 205 and the arcs 204 outside; the movable teeth 212 are limited by cylindrical surfaces
- the invention also provides for allowing adjustment of the offset, as shown in Figures 6 and 7; according to Figure 6, the axis of the end frustoconical 144 of the pump shaft 140, and therefore the axis of the passage 183 which la receives, is slightly offset from the axis 165 of the outer surface 192 of the bearing 147 which receives the bearings 148 which support the barrel 170; the eccentricity E being the transverse difference between this axis 165 and the axis 155 of the cylindrical bearing surface 179 of the pump shaft 140, mechanically linked to the frustoconical part 144, it can be seen that it suffices to turn the bearing 147 relative to it so that the distance between the axis 165 and the axis 155, that is to say the offset E, varies.
- a similar arrangement makes it possible to adjust the offset E at the right bearing means 190; as seen in figure 7, the eccentric reach 178 of the pump shaft 140 has its axis offset from the axis of a ring 193 which surrounds it and which receives the bearing of the bearing hub 190; the also, by rotating the ring 193 relative to the shaft 140 on modifies the distance between axes 155 and 165.
- the pump which has just been described has an arrangement such as the plane of inertia of the moving masses is located axially to the right of the spacer 112; thus, a single dynamic balancing mass 197 located in this region, joined to bearing 147, is sufficient for balancing all.
- the suction 156 of the pump is provided radially in the spacer 112 and the discharge 157 is axial, downstream of a non-return valve 159.
- the pumped fluid is subjected to the effect continuous and progressive compression due to translation travel circular of movable spiral projections with respect to fixed spiral projections.
- the metal bellows 160 used to completely seal the pumping system is thus positively protected against any effort of functional or accidental torsion due to the limiting device 200; the duration of life of the bellows 160 is therefore practically unlimited.
- Such a pump intended to generate volumes of up to 500 m 3 / hour or more is advantageously provided with a cooling oil circuit, the entry of which can be seen in 198 in FIG. 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Transmission Devices (AREA)
- Rotary Pumps (AREA)
Description
- la figure 1 est une vue en coupe longitudinale partielle d'une pompe selon l'invention ;
- la figure 2 est une vue en coupe selon II-II de la figure 1 ;
- la figure 3 est une vue en coupe selon III-III de la figure 1 ;
- les figures 4 et 5 sont des schémas géométriques montrant la construction des dents du dispositif de la figure 3 ;
- les figures 6 et 7 sont des coupes, à plus grande échelle, selon les lignes VI-VI et VII-VII, respectivement, de la figure 1.
Claims (10)
- Pompe à vide à cycle de translation circulaire comportant un corps fixe (100) ayant au moins un disque fixe (114) qui présente sur un de ses côtés une saillie (123) en forme de spirale, un disque mobile (131) opposé au disque fixe (114) et ayant également au moins une saillie (133) en forme de spirale intercalée avec la saillie (123) en forme de spirale du disque fixe (114) et de même amplitude angulaire, un mécanisme par lequel le disque mobile (131) est relié audit corps (100) et supporté par lui, pour commander un mouvement de translation circulaire du disque mobile (131) par rapport audit corps (100) pendant le fonctionnement de la pompe, des moyens moteurs (120) pour entraíner le disque mobile (131) par l'intermédiaire d'un arbre de pompe (140) et lui faire effectuer ledit mouvement de translation circulaire, ladite pompe comportant également un dispositif limiteur de débattement de translation circulaire, ledit mécanisme comprenant au moins un palier (182,190) porté par l'arbre de pompe (140), ledit arbre de pompe (140) étant en position centrale par rapport au corps fixe (100), et le dispositif limiteur de débattement de translation circulaire étant constitué d'une couronne (201) ayant des dents (202) fixes entre lesquelles s'imbriquent des dents (212) solidaires du disque mobile (131), caractérisée par le fait que les dents fixes (202) sont limitées par des surfaces cylindriques d'axe parallèle à l'axe (155) de la pompe et dont la section, par un plan perpendiculaire audit axe (155), est composée d'arcs de cercles (203, 204) de rayons R et r, respectivement, dont les centres sont sur un cercle (205) de rayon Rp centré sur ledit axe (155), des arcs (203) s'étendant à l'intérieur et des arcs (204) s'étendant à l'extérieur dudit cercle des centres (205).
- Pompe selon la revendication 1, caractérisée par le fait que les dents mobiles (212) sont limitées par des surfaces cylindriques d'axe parallèle à l'axe (155) de la pompe et dont la section, par un plan perpendiculaire audit axe (155), est composée d'arcs des mêmes cercles (203, 204) s'étendant à l'extérieur (203) et à l'intérieur (204), respectivement, dudit cercle des centres (205).
- Pompe selon la revendication 2, caractérisée par le fait que a étant l'angle entre deux dents fixes (202) ou mobiles (212) et E l'excentration, qui correspond au rayon du cylindre décrit par l'axe mobile (165) autour de l'axe fixe (155) de la pompe, R = RpSin α / 4 + E / 2 et r = RpSin α / 4 - E / 2.
- Pompe selon l'une des revendications 1 à 3, caractérisée par le fait que le rayon de manivelle est réglable.
- Pompe selon la revendication 4, caractérisée par le fait que l'axe du passage (183) qui reçoit l'extrémité de l'arbre de pompe (140) est légèrement décalé par rapport à l'axe (165) de la surface extérieure (192) du palier (147) dans lequel est ménagé ledit passage (183) et qui supporte le disque mobile (131) par l'intermédiaire de roulements (148) reçus par ladite surface extérieure (192).
- Pompe selon la revendication 4, caractérisée par le fait que la portée excentrée (178) de l'arbre de pompe (140) a son axe décalé par rapport à l'axe d'une bague (193) qui l'entoure et qui reçoit un roulement pour un moyeu de palier (190).
- Pompe selon l'une des revendications 1 à 6, caractérisée par le fait que ledit mécanisme comprend deux paliers (182, 190) portés tous deux par l'arbre de pompe (140), et espacés axialement.
- Pompe selon l'une des revendications 1 à 7, caractérisée par le fait qu'elle comprend en outre un soufflet métallique (160) d'étanchéité entourant l'arbre de pompe (140) et dont une extrémité est solidaire du disque mobile (131) et l'autre du corps fixe (100).
- Pompe selon l'une des revendications 1 à 8, caractérisée par le fait qu'elle ne comprend qu'une seule saillie en spirale (123) sur le disque fixe (114) et une seule saillie en spirale (133) sur le disque mobile (131).
- Pompe selon l'une des revendications 1 à 9, caractérisée par le fait que les saillies en spirale (123) du disque fixe (114) et les saillies en spirale (133) du disque mobile (131) sont séparées par un petit jeu constant quelle que soit la position du disque mobile (131).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9502209 | 1995-02-24 | ||
FR9502209A FR2731051B1 (fr) | 1995-02-24 | 1995-02-24 | Pompe a vide a cycle de translation circulaire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0728948A1 EP0728948A1 (fr) | 1996-08-28 |
EP0728948B1 true EP0728948B1 (fr) | 1999-12-08 |
Family
ID=9476504
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96400386A Expired - Lifetime EP0728948B1 (fr) | 1995-02-24 | 1996-02-23 | Pompe à vide à spirales |
EP96400385A Expired - Lifetime EP0728947B1 (fr) | 1995-02-24 | 1996-02-23 | Pompe à vide à cycle de translation circulaire |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96400385A Expired - Lifetime EP0728947B1 (fr) | 1995-02-24 | 1996-02-23 | Pompe à vide à cycle de translation circulaire |
Country Status (9)
Country | Link |
---|---|
US (2) | US5951268A (fr) |
EP (2) | EP0728948B1 (fr) |
JP (2) | JP4088340B2 (fr) |
KR (2) | KR100383695B1 (fr) |
DE (2) | DE69605461T2 (fr) |
ES (2) | ES2140040T3 (fr) |
FR (1) | FR2731051B1 (fr) |
TW (2) | TW311162B (fr) |
WO (2) | WO1996026367A1 (fr) |
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EP0863313A1 (fr) * | 1997-03-04 | 1998-09-09 | Anest Iwata Corporation | Compresseur à volutes à deux étages |
FR2764347B1 (fr) | 1997-06-05 | 1999-07-30 | Alsthom Cge Alcatel | Machine du type scroll |
US6050792A (en) * | 1999-01-11 | 2000-04-18 | Air-Squared, Inc. | Multi-stage scroll compressor |
GB9912212D0 (en) | 1999-05-26 | 1999-07-28 | Boc Group Plc | Scroll-type apparatus |
EP1148246A3 (fr) * | 2000-04-19 | 2002-11-20 | Unipulse Corporation | Compresseur à spirales et appareil convertisseur de pression à spirales |
US6464479B1 (en) | 2000-05-24 | 2002-10-15 | The Boc Group Plc | Scroll-type apparatus |
US20040148951A1 (en) * | 2003-01-24 | 2004-08-05 | Bristol Compressors, Inc, | System and method for stepped capacity modulation in a refrigeration system |
US20050063850A1 (en) * | 2003-09-18 | 2005-03-24 | Liepert Anthony G. | Scroll pump using isolation bellows and synchronization mechanism |
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WO2005107552A2 (fr) * | 2004-05-03 | 2005-11-17 | Castronovo Charles A | Aspirateurs particulierement silencieux, pompes et moteurs associes |
FR2881189A1 (fr) * | 2005-01-21 | 2006-07-28 | V G B Vulliez Gestion Brevets | Pompe a vide a cycle de translation circulaire a plusieurs arbres |
GB0600588D0 (en) * | 2006-01-12 | 2006-02-22 | Boc Group Plc | Scroll-type apparatus |
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CN112119219B (zh) | 2018-05-04 | 2022-09-27 | 空气平方公司 | 固定和动涡旋压缩机、膨胀机或真空泵的液体冷却 |
US20200025199A1 (en) | 2018-07-17 | 2020-01-23 | Air Squared, Inc. | Dual drive co-rotating spinning scroll compressor or expander |
US11067080B2 (en) | 2018-07-17 | 2021-07-20 | Air Squared, Inc. | Low cost scroll compressor or vacuum pump |
US11530703B2 (en) | 2018-07-18 | 2022-12-20 | Air Squared, Inc. | Orbiting scroll device lubrication |
CN109268265A (zh) * | 2018-10-18 | 2019-01-25 | 东北大学 | 一种涡旋真空泵 |
US11473572B2 (en) | 2019-06-25 | 2022-10-18 | Air Squared, Inc. | Aftercooler for cooling compressed working fluid |
US11898557B2 (en) | 2020-11-30 | 2024-02-13 | Air Squared, Inc. | Liquid cooling of a scroll type compressor with liquid supply through the crankshaft |
US11885328B2 (en) | 2021-07-19 | 2024-01-30 | Air Squared, Inc. | Scroll device with an integrated cooling loop |
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US3782865A (en) * | 1971-03-05 | 1974-01-01 | A Braun | Sealing sleeve |
FR2153129B2 (fr) * | 1971-06-01 | 1974-01-04 | Vulliez Paul | |
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CH586348A5 (fr) * | 1975-02-07 | 1977-03-31 | Aginfor Ag | |
US4178143A (en) * | 1978-03-30 | 1979-12-11 | The United States Of America As Represented By The Secretary Of The Navy | Relative orbiting motion by synchronoously rotating scroll impellers |
JPS57212303A (en) * | 1981-06-23 | 1982-12-27 | Matsushita Refrig Co | Scroll type hydraulic machine |
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-
1995
- 1995-02-24 FR FR9502209A patent/FR2731051B1/fr not_active Expired - Fee Related
-
1996
- 1996-02-23 US US08/894,638 patent/US5951268A/en not_active Expired - Fee Related
- 1996-02-23 WO PCT/FR1996/000290 patent/WO1996026367A1/fr active IP Right Grant
- 1996-02-23 ES ES96400386T patent/ES2140040T3/es not_active Expired - Lifetime
- 1996-02-23 WO PCT/FR1996/000289 patent/WO1996026366A1/fr active IP Right Grant
- 1996-02-23 EP EP96400386A patent/EP0728948B1/fr not_active Expired - Lifetime
- 1996-02-23 KR KR1019970705856A patent/KR100383695B1/ko not_active IP Right Cessation
- 1996-02-23 TW TW085102063A patent/TW311162B/zh active
- 1996-02-23 ES ES96400385T patent/ES2140039T3/es not_active Expired - Lifetime
- 1996-02-23 US US08/894,637 patent/US6022202A/en not_active Expired - Fee Related
- 1996-02-23 DE DE69605461T patent/DE69605461T2/de not_active Expired - Lifetime
- 1996-02-23 KR KR1019970705831A patent/KR100383696B1/ko not_active IP Right Cessation
- 1996-02-23 EP EP96400385A patent/EP0728947B1/fr not_active Expired - Lifetime
- 1996-02-23 DE DE69605462T patent/DE69605462T2/de not_active Expired - Fee Related
- 1996-02-23 JP JP52546296A patent/JP4088340B2/ja not_active Expired - Fee Related
- 1996-02-23 JP JP52546196A patent/JP3914974B2/ja not_active Expired - Fee Related
- 1996-02-23 TW TW085102064A patent/TW314576B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3914974B2 (ja) | 2007-05-16 |
EP0728947A1 (fr) | 1996-08-28 |
US6022202A (en) | 2000-02-08 |
TW314576B (fr) | 1997-09-01 |
TW311162B (fr) | 1997-07-21 |
DE69605462T2 (de) | 2000-07-27 |
KR19980702432A (ko) | 1998-07-15 |
JP4088340B2 (ja) | 2008-05-21 |
FR2731051B1 (fr) | 1997-04-30 |
KR100383695B1 (ko) | 2004-05-20 |
DE69605462D1 (de) | 2000-01-13 |
ES2140040T3 (es) | 2000-02-16 |
US5951268A (en) | 1999-09-14 |
EP0728947B1 (fr) | 1999-12-08 |
ES2140039T3 (es) | 2000-02-16 |
WO1996026367A1 (fr) | 1996-08-29 |
KR100383696B1 (ko) | 2004-05-20 |
JPH11504692A (ja) | 1999-04-27 |
JPH11500804A (ja) | 1999-01-19 |
EP0728948A1 (fr) | 1996-08-28 |
DE69605461T2 (de) | 2000-07-27 |
FR2731051A1 (fr) | 1996-08-30 |
WO1996026366A1 (fr) | 1996-08-29 |
DE69605461D1 (de) | 2000-01-13 |
KR19980702456A (ko) | 1998-07-15 |
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