WO1996026366A1 - Pompe a vide a cycle de translation circulaire - Google Patents
Pompe a vide a cycle de translation circulaire Download PDFInfo
- Publication number
- WO1996026366A1 WO1996026366A1 PCT/FR1996/000289 FR9600289W WO9626366A1 WO 1996026366 A1 WO1996026366 A1 WO 1996026366A1 FR 9600289 W FR9600289 W FR 9600289W WO 9626366 A1 WO9626366 A1 WO 9626366A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disc
- pump
- spiral
- movable
- projection
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001125831 Istiophoridae Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 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
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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 vacuum pump with a circular translation cycle.
- a vacuum pump with circular translation cycle comprising a fixed body having a fixed disc which has on at least one of its sides a spiral-shaped projection, a movable disc opposite the fixed disc and also having at least a spiral-shaped projection interposed with the spiral-shaped projection of the fixed disc and of the same angular amplitude, a mechanism by which the movable disc is connected to and supported by said body, to control a circular translational movement of the movable disc by relation to said body during operation of the pump, motor means for driving the movable disc via a pump shaft and causing it to effect said movement of circular translation, said pump also comprising a device for limiting the movement of circular translation guiding the mobile 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 nevertheless has the drawback of comprising numerous parts and of being bulky, in particular radially. due in particular to the fact that said mechanism consists of three cranks coupled in a synchronized manner with each other and arranged at the periphery of the pump, these cranks ensuring by themselves the limitation of the circular translation movement.
- the object of the present invention is to produce a pump of the above type which does not have these drawbacks.
- a vacuum pump with circular translation cycle comprising a fixed body having at least one fixed disc which has on one of its sides a projection in the form of a spiral, a movable disc opposite to the fixed disc and also having at least one spiral-shaped projection interposed with the spiral-shaped projection of the fixed disc and of the same angular amplitude, a mechanism by which the movable disc is connected to and supported by said body to control movement of circular translation of the movable disc with respect to said body during the operation of the pump, motor means for driving the mobile disc via a pump shaft and causing it to effect said circular translational movement, said pump also comprising a circular translation movement limiting device, said mechanism comprising at least one bearing carried by the pump shaft, is characterized in that said pump shaft is in a central position relative to the fixed body, said mechanism also comprises a crank shaft which is adapted to move in a circular translational movement and which is coupled, by one of its ends, to the movable disc which it drives in its movement, while its other end, close to
- Such a bellows is capable of ensuring the limitation of travel, or anti-twist, function when the pump is dimensioned to generate volumes at most equal to 25 m 3 / hour, and this without problem, especially without fatigue; it will be noted, moreover, that such a bellows at the same time ensures total insulation of the pump enclosure, where the vacuum is produced, with respect to the exterior and to the rest of the pump, which increases the number of possible applications of such a pump.
- Such a pump is thus part of the so-called dry pumps whose active parts are isolated from the outside and free from any lubricant, oil or grease. We will easily understand that such a pump is very simple, compact and, consequently, low cost.
- the pump comprises a movable disc consisting of two movable plates, the spiral projections of which are on opposite faces of the movable plates, the movable disc being placed between an annular fixed disc and a flange, the opposite faces of which carry the spiral projections. fixed.
- the flange has a projection in the form of a peripheral spiral extending towards the axis of the pump according to a projection in the form of a central spiral, the axial height of which is less than that of the peripheral projection, the two peripheral and central projections having their free ends in the same transverse plane, one of the mobile plates, opposite the flange, being provided, on the one hand, with a projection in the form of a spiral interposed with the peripheral projection of the flange and of the same angular amplitude and, d 'on the other hand, a spiral-shaped projection interspersed with the central projection of the flange and of the same angular amplitude.
- the two plates of the movable disc are connected by an annular ring with a U-shaped cross section, the walls of which have a thickness allowing the two plates to move axially relative to one another; a spring placed between the two plates urges them axially away from one another.
- the plates, their projections and the annular crown are in one piece of a material allowing contact between the movable disc, on the one hand, and the fixed disc and flange, on the other hand, provided in metal, this contact being at minimum friction; preferably, the spiral projections of the fixed disc and the spiral projections of the movable disc cooperate in friction during operation of the pump.
- the crankshaft has a central part of generally frustoconical shape, the end of which is located on the side of the small base. carries a cylindrical sleeve provided on its outer surface with longitudinal grooves cooperating with complementary longitudinal grooves formed on the inner surface of a skirt carried by the movable plate opposite the flange.
- the skirt is also made in one piece with the movable disc.
- the pump shaft is a hollow shaft having, on the one hand, an external cylindrical bearing surface by which it is supported by the frame by means of rolling means and, on the other hand, a cylindrical bore receiving the bearing with interposition of a bearing, the external cylindrical bearing being offset axially with respect to the cylindrical bore whose diameter is greater than the diameter of the external cylindrical bearing.
- the metal bellows has two corrugated zones placed axially on either side of a cylindrical central zone.
- FIG. 1 is a partial longitudinal sectional view of a pump according to the invention
- - Figure 2 is an end view along ll-ll of Figure 1 of the movable double plate alone.
- a circular translation cycle vacuum pump comprises a fixed body 10 formed, according to the example shown, by the assembly of four elements 1 1 to 14 namely a sleeve 1 1, a intermediate plate 1 2, a fixed annular disk 1 3 and a flange 14, arranged successively axially in the order in which they have just been mentioned; these elements are assembled by screws such as the screws 1 5 distributed circumferentially; annular seals 1 6 and 1 7 are interposed between the intermediate plate 12 and the annular disc 1 3, on the one hand, and between this same annular disc 1 3 and the flange 14, on the other hand, respectively.
- the annular fixed disc 1 3 has on the side which faces the flange 14 a spiral-shaped projection 23; the flange 14 has on the side which faces the annular disk 1 3 also a peripheral spiral-shaped projection 24 extending towards the axis of the pump according to a central spiral-shaped projection 25 whose axial height is less than that of the peripheral projection 24, the two peripheral 24 and central 25 projections having their free ends in the same transverse plane 18.
- a movable disc 30 is placed between the annular fixed disc 1 3 and the flange 14 also fixed;
- the movable disc 30 comprises a first plate 31 opposite the fixed disc 1 3 and provided with a spiral-shaped projection 33 interposed with the projection 23 of the fixed disc 1 3 and of the same angular amplitude;
- the movable disc 30 also includes a second plate 32 opposite the flange 14 and provided, on the one hand, with a spiral-shaped projection 34 interposed with the projection 24 of the flange 14 and of the same angular amplitude and, on the other hand , a spiral-shaped projection 35 interposed with the projection 25 of the flange 14 and of the same angular amplitude.
- the two plates 31, 32 are connected by an annular ring 36 with a U-shaped section open towards the outside relative to the axis of the pump; the thickness of the walls of U-shaped section of the annular ring 36 is relatively small so that the plates 31, 32 have a possibility of axial displacement relative to each other; a helical spring 37 placed between the plates 31, 32 urges them axially away from one another.
- the plates 31, 32 and their spiral projections 33, 34, 35 as well as the annular ring 36 are produced, by molding and / or machining, in one piece from a material allowing contact between the movable disc 30, on the one hand, and the disc 1 3 and the flange 14 fixed, on the other hand, provided in metal, such than stainless steel or an aluminum alloy, this contact being at minimum friction;
- a material is, for example, that which is marketed under the trade name VESCONITE by the company MARLIN INTERNATIONAL; this material which, as is known, is based on polyethylene terephthalate, contains a silicone fluid and molybdenum disulfide minimizing the friction on a metal part; an equivalent material other than this can of course be used to make the movable disc 30; it is likewise possible to produce all the parts in metallic contact and to coat at least one of them, the moving part for example, with a small thickness, like a few microns, of a suitable resin such as the resin fluorinated product sold under the trade
- a mechanism for connecting the movable disc 30 to the fixed body 10 and supporting it; this mechanism comprises a crank shaft 40 having a central part 45 of generally frustoconical shape, the end of which located on the side of the small base carries a cylindrical sleeve 41 provided on its outer surface with longitudinal grooves 42 cooperating with complementary longitudinal grooves 38 formed at the inner surface of a skirt 39 carried by the second plate 32; the skirt 39 is also made in one piece with the movable disc 30; at its other end, the frustoconical central part 45 of the crank shaft 40 has a flange 43, of larger diameter than that of the large base of the central part 45; the collar 43 extends along a frustoconical end 44 of angle inverted with respect to that of the central part 45; this frustoconical end 44 is secured by a screw 46 to a bearing 47 supporting a bearing 48 internally supported also externally by being engaged in the cylindrical bore 51 of a central drive shaft of the pump here a hollow shaft 50 centered on axis 55 of
- the external cylindrical bearing 52 is axially offset with respect to the cylindrical bore 51, the diameter of which is, moreover, greater than the diameter of the external cylindrical seat 52; thanks to this arrangement, added to that according to which the crank formed by the bearing 47 is placed axially away from the fixed disks 1 3 and movable 30, the pump advantageously has a small diametrical size.
- the hollow shaft 50 is secured to a drive flange 26 having fingers 27 inserted circumferentially between fingers 28 of a nut 29 secured, by means of a key 22, to the motor shaft 21 of a motor 20 partially shown in figure 1.
- the central part 45 of the crank shaft 40 is, according to the invention, surrounded by a metal bellows 60;
- the metal bellows 60 advantageously has two corrugated zones 60A, 60C placed axially on either side of a cylindrical central zone 60B; it is fixed by one of its ends to the flange 43 of the crank shaft 40; the other end of the bellows 60 is fixed, at the end of a bell 53 secured to the intermediate plate 1 2 of the frame 10, as close as possible to the skirt 39 of the second plate 32 of the movable disc 30, so that the bellows 60 is very long: thanks to this arrangement, the bending angle of the bellows 60 in operation is small, thus limiting the fatigue of the corrugated zones 60A,
- Bellows 60C 60C; the metal bellows 60 ensures good guidance of the movable disc 30 in its circular translational movement by preventing the shaft 40 from turning on itself, that is to say any undesirable torsional effect.
- the motor shaft 21 of the motor 20 is centered on the axis 55 of the pump; the axis 65 of the bearing 47, which is also the axis of the crank shaft 40, is eccentric relative to the axis 55 of the pump.
- a ventilation unit 54 cools the transverse external face of the flange 14 provided relatively massive to absorb the calories produced by pumping and transmit them to the cooling air.
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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)
- Rotary Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Transmission Devices (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/894,638 US5951268A (en) | 1995-02-24 | 1996-02-23 | Sperial vacuum pump having a metal bellows for limiting circular translation movement |
JP52546196A JP3914974B2 (ja) | 1995-02-24 | 1996-02-23 | 円弧状並進サイクルを有する真空ポンプ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR95/02209 | 1995-02-24 | ||
FR9502209A FR2731051B1 (fr) | 1995-02-24 | 1995-02-24 | Pompe a vide a cycle de translation circulaire |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996026366A1 true WO1996026366A1 (fr) | 1996-08-29 |
Family
ID=9476504
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1996/000290 WO1996026367A1 (fr) | 1995-02-24 | 1996-02-23 | Pompe, notamment pompe a vide, a cycle de translation circulaire |
PCT/FR1996/000289 WO1996026366A1 (fr) | 1995-02-24 | 1996-02-23 | Pompe a vide a cycle de translation circulaire |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1996/000290 WO1996026367A1 (fr) | 1995-02-24 | 1996-02-23 | Pompe, notamment pompe a vide, a cycle de translation circulaire |
Country Status (9)
Country | Link |
---|---|
US (2) | US5951268A (fr) |
EP (2) | EP0728947B1 (fr) |
JP (2) | JP3914974B2 (fr) |
KR (2) | KR100383696B1 (fr) |
DE (2) | DE69605461T2 (fr) |
ES (2) | ES2140040T3 (fr) |
FR (1) | FR2731051B1 (fr) |
TW (2) | TW311162B (fr) |
WO (2) | WO1996026367A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055824A1 (fr) | 1999-05-26 | 2000-11-29 | The BOC Group plc | Appareil à spirales |
US6464479B1 (en) | 2000-05-24 | 2002-10-15 | The Boc Group Plc | Scroll-type apparatus |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP1148246A3 (fr) * | 2000-04-19 | 2002-11-20 | Unipulse Corporation | Compresseur à spirales et appareil convertisseur de pression à spirales |
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 |
US7043146B2 (en) * | 2003-12-15 | 2006-05-09 | Solomon Semaza | All season heat fan with electric heating elements powered by rotating rings and ball bearings |
JP2007524031A (ja) * | 2004-01-23 | 2007-08-23 | スターローター コーポレーション | 準等温ブレイトン・サイクル・エンジン用のジェロータ装置 |
US7261528B2 (en) * | 2004-03-30 | 2007-08-28 | Varian, Inc. | Scroll pump with load bearing synchronization device |
US8272854B2 (en) * | 2004-05-03 | 2012-09-25 | Castronovo Charles A | Vacuum cleaners especially quiet vacuum cleaners, pumps, and engines |
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 |
US8668479B2 (en) * | 2010-01-16 | 2014-03-11 | Air Squad, Inc. | Semi-hermetic scroll compressors, vacuum pumps, and expanders |
US8523544B2 (en) * | 2010-04-16 | 2013-09-03 | Air Squared, Inc. | Three stage scroll vacuum pump |
US7942655B2 (en) * | 2006-02-14 | 2011-05-17 | Air Squared, Inc. | Advanced scroll compressor, vacuum pump, and expander |
US10221852B2 (en) | 2006-02-14 | 2019-03-05 | Air Squared, Inc. | Multi stage scroll vacuum pumps and related scroll devices |
US10683865B2 (en) | 2006-02-14 | 2020-06-16 | Air Squared, Inc. | Scroll type device incorporating spinning or co-rotating scrolls |
US20080318010A1 (en) * | 2007-06-20 | 2008-12-25 | Wozniak John C | Release liner having print receptive surface and methods for manufacturing and using |
US8622724B2 (en) * | 2009-09-25 | 2014-01-07 | Agilent Technologies, Inc. | Scroll pump with isolation barrier |
US11047389B2 (en) | 2010-04-16 | 2021-06-29 | Air Squared, Inc. | Multi-stage scroll vacuum pumps and related scroll devices |
JP5562263B2 (ja) * | 2011-01-11 | 2014-07-30 | アネスト岩田株式会社 | スクロール流体機械 |
US20130232975A1 (en) | 2011-08-09 | 2013-09-12 | Robert W. Saffer | Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump, or combined organic rankine and heat pump cycle |
US9404491B2 (en) | 2013-03-13 | 2016-08-02 | Agilent Technologies, Inc. | Scroll pump having bellows providing angular synchronization and back-up system for bellows |
US8961160B2 (en) | 2013-03-29 | 2015-02-24 | Agilent Technologies, Inc. | Scroll pump having separable orbiting plate scroll and method of replacing tip seal |
US9328730B2 (en) | 2013-04-05 | 2016-05-03 | Agilent Technologies, Inc. | Angular synchronization of stationary and orbiting plate scroll blades in a scroll pump using a metallic bellows |
US9366255B2 (en) | 2013-12-02 | 2016-06-14 | Agilent Technologies, Inc. | Scroll vacuum pump having external axial adjustment mechanism |
US9360013B2 (en) | 2013-12-11 | 2016-06-07 | Agilent Technologies, Inc. | Scroll pump having axially compliant spring element |
US9429020B2 (en) | 2013-12-11 | 2016-08-30 | Agilent Technologies, Inc. | Scroll pump having axially compliant spring element |
US10508543B2 (en) | 2015-05-07 | 2019-12-17 | Air Squared, Inc. | Scroll device having a pressure plate |
US10865793B2 (en) | 2016-12-06 | 2020-12-15 | Air Squared, Inc. | Scroll type device having liquid cooling through idler shafts |
WO2019212598A1 (fr) | 2018-05-04 | 2019-11-07 | Air Squared, Inc. | Refroidissement par liquide de compresseur, de détendeur ou de pompe à vide à volute fixe et orbitale |
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 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1596943A (fr) * | 1967-12-18 | 1970-06-22 | ||
US3782865A (en) * | 1971-03-05 | 1974-01-01 | A Braun | Sealing sleeve |
US3817664A (en) * | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
FR2300238A1 (fr) * | 1975-02-07 | 1976-09-03 | Aginfor Ag | Machine volumetrique pour agents compressibles |
US4650405A (en) * | 1984-12-26 | 1987-03-17 | Nippon Soken, Inc. | Scroll pump with axially spaced pumping chambers in series |
EP0529660A1 (fr) * | 1991-08-30 | 1993-03-03 | Daikin Industries, Ltd. | Compresseur à volutes à deux étages |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2153129B2 (fr) * | 1971-06-01 | 1974-01-04 | Vulliez Paul | |
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 |
JPS5896193A (ja) * | 1981-12-03 | 1983-06-08 | Mitsubishi Heavy Ind Ltd | スクロ−ル型圧縮機 |
JPS58106190A (ja) * | 1981-12-18 | 1983-06-24 | Mitsubishi Heavy Ind Ltd | スクロ−ル型圧縮機 |
JPS58160579A (ja) * | 1982-03-19 | 1983-09-24 | Hitachi Ltd | スクロ−ル圧縮機 |
DE3243571A1 (de) * | 1982-11-25 | 1984-05-30 | Volkswagenwerk Ag, 3180 Wolfsburg | Verdraengermaschine fuer kompressible medien |
US4477238A (en) * | 1983-02-23 | 1984-10-16 | Sanden Corporation | Scroll type compressor with wrap portions of different axial heights |
JPS59224401A (ja) * | 1983-06-03 | 1984-12-17 | Mitsubishi Electric Corp | スクロ−ル流体機械 |
JPS6114493A (ja) * | 1984-06-29 | 1986-01-22 | Mitsubishi Electric Corp | スクロ−ル圧縮機 |
JPS6158993A (ja) * | 1984-08-29 | 1986-03-26 | Nippon Denso Co Ltd | スクロ−ル型圧縮機 |
US4795323A (en) * | 1987-11-02 | 1989-01-03 | Carrier Corporation | Scroll machine with anti-rotation mechanism |
JPH066947B2 (ja) * | 1988-04-11 | 1994-01-26 | 新明和工業株式会社 | スクロール形流体機械 |
JP2753317B2 (ja) * | 1989-03-20 | 1998-05-20 | 株式会社日立製作所 | スクロール流体機械 |
JPH04339189A (ja) * | 1991-05-15 | 1992-11-26 | Sanden Corp | スクロール型流体装置 |
JP3170904B2 (ja) * | 1992-10-05 | 2001-05-28 | 花王株式会社 | 鋳物砂用二酸化炭素ガス硬化型粘結剤水溶液及び鋳型の製造方法 |
-
1995
- 1995-02-24 FR FR9502209A patent/FR2731051B1/fr not_active Expired - Fee Related
-
1996
- 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 US US08/894,638 patent/US5951268A/en not_active Expired - Fee Related
- 1996-02-23 TW TW085102063A patent/TW311162B/zh active
- 1996-02-23 EP EP96400385A patent/EP0728947B1/fr not_active Expired - Lifetime
- 1996-02-23 TW TW085102064A patent/TW314576B/zh not_active IP Right Cessation
- 1996-02-23 JP JP52546196A patent/JP3914974B2/ja not_active Expired - Fee Related
- 1996-02-23 JP JP52546296A patent/JP4088340B2/ja not_active Expired - Fee Related
- 1996-02-23 DE DE69605461T patent/DE69605461T2/de not_active Expired - Lifetime
- 1996-02-23 ES ES96400385T patent/ES2140039T3/es not_active Expired - Lifetime
- 1996-02-23 EP EP96400386A patent/EP0728948B1/fr not_active Expired - Lifetime
- 1996-02-23 KR KR1019970705831A patent/KR100383696B1/ko not_active Expired - Fee Related
- 1996-02-23 DE DE69605462T patent/DE69605462T2/de not_active Expired - Fee Related
- 1996-02-23 KR KR1019970705856A patent/KR100383695B1/ko not_active Expired - Fee Related
- 1996-02-23 US US08/894,637 patent/US6022202A/en not_active Expired - Fee Related
- 1996-02-23 WO PCT/FR1996/000289 patent/WO1996026366A1/fr active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1596943A (fr) * | 1967-12-18 | 1970-06-22 | ||
US3782865A (en) * | 1971-03-05 | 1974-01-01 | A Braun | Sealing sleeve |
US3817664A (en) * | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
FR2300238A1 (fr) * | 1975-02-07 | 1976-09-03 | Aginfor Ag | Machine volumetrique pour agents compressibles |
US4650405A (en) * | 1984-12-26 | 1987-03-17 | Nippon Soken, Inc. | Scroll pump with axially spaced pumping chambers in series |
EP0529660A1 (fr) * | 1991-08-30 | 1993-03-03 | Daikin Industries, Ltd. | Compresseur à volutes à deux étages |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055824A1 (fr) | 1999-05-26 | 2000-11-29 | The BOC Group plc | Appareil à spirales |
US6464479B1 (en) | 2000-05-24 | 2002-10-15 | The Boc Group Plc | Scroll-type apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP3914974B2 (ja) | 2007-05-16 |
TW314576B (fr) | 1997-09-01 |
EP0728948B1 (fr) | 1999-12-08 |
EP0728947A1 (fr) | 1996-08-28 |
DE69605462D1 (de) | 2000-01-13 |
KR19980702456A (ko) | 1998-07-15 |
US5951268A (en) | 1999-09-14 |
FR2731051B1 (fr) | 1997-04-30 |
JP4088340B2 (ja) | 2008-05-21 |
ES2140039T3 (es) | 2000-02-16 |
JPH11500804A (ja) | 1999-01-19 |
EP0728948A1 (fr) | 1996-08-28 |
WO1996026367A1 (fr) | 1996-08-29 |
KR19980702432A (ko) | 1998-07-15 |
TW311162B (fr) | 1997-07-21 |
DE69605461T2 (de) | 2000-07-27 |
KR100383695B1 (ko) | 2004-05-20 |
DE69605462T2 (de) | 2000-07-27 |
DE69605461D1 (de) | 2000-01-13 |
JPH11504692A (ja) | 1999-04-27 |
FR2731051A1 (fr) | 1996-08-30 |
EP0728947B1 (fr) | 1999-12-08 |
KR100383696B1 (ko) | 2004-05-20 |
US6022202A (en) | 2000-02-08 |
ES2140040T3 (es) | 2000-02-16 |
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