WO2007022798A1 - Corps de pompe - Google Patents
Corps de pompe Download PDFInfo
- Publication number
- WO2007022798A1 WO2007022798A1 PCT/EP2005/054194 EP2005054194W WO2007022798A1 WO 2007022798 A1 WO2007022798 A1 WO 2007022798A1 EP 2005054194 W EP2005054194 W EP 2005054194W WO 2007022798 A1 WO2007022798 A1 WO 2007022798A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subassembly
- face
- wall
- pump body
- rotors
- Prior art date
Links
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/086—Carter
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
-
- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/086—Carter
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/21—Manufacture essentially without removing material by casting
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
-
- 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
- F04C2240/30—Casings or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/042—Expansivity
- F05C2251/044—Expansivity similar
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/042—Expansivity
- F05C2251/046—Expansivity dissimilar
Definitions
- the invention relates to a pump body.
- the invention more particularly but not exclusively concerns the field of pumps which, using rotors, are used as compressors for gaseous fluids.
- the invention obviously relates to the pump which comprises this body.
- the pump body is constituted in two subsets, said first and second, which are assembled in a joint plane substantially orthogonal to the longitudinal axes of the rotors.
- the rotors are guided in rotation along their longitudinal axes by so-called first guiding members positioned at opposite ends that they comprise,
- the bodies of such pumps are made by molding walls of metallic material and some surfaces of these walls are machined, particularly by boring, to define a so-called compression chamber, in which the rotors will then be placed.
- each chamber portion included in a subassembly also makes it possible to guarantee increased machining precision.
- the pump body must have a double-walled envelope that allows the circulation of a coolant around the compression chamber.
- the double-walled casing has, on the one hand, a first wall which determines the volume of the compression chamber and, on the other hand, a second wall which extends around the first wall with a certain spacing for the circulation of the first fluid.
- One result that the invention aims to obtain is a double-walled pump body whose structure makes it possible to overcome the problems conventionally encountered, both during manufacture and during operation of the pump.
- the subject of the invention is a pump body according to claim 1.
- the invention also relates to a pump which comprises this body.
- FIG. 1 an exploded and perspective view of a pump body according to the invention
- FIG. 2 a pump comprising the pump body of FIG. 1, seen in section along a plane which passes through the longitudinal axes of the rotors which it comprises;
- FIG. 3 is an end view of one of the constituent subassemblies of the pump body according to the invention.
- FIG. 4 a cross-sectional view of the subset of FIG. 3, and this, according to the median plane,
- a pump body 2 having a double-walled casing 3 which allows the circulation of a first fluid 4, in particular a heat-transfer fluid, at least partially around a compression chamber 5 of a second fluid 6 , the compression being effected by means of at least two elongated rotors 7, 8, which, having longitudinal axes 70, 80, are situated in said compression chamber 5.
- the first fluid 4 and the second fluid 6 are symbolized by arrows.
- the rotors 7, 8 are guided in rotation about their longitudinal axes 70, 80 by so-called first rotating guide members 9 positioned at opposite ends 71, 72, 81, 82 that these rotors comprise.
- the double-walled envelope 3 has, on the one hand, a first wall 10 which determines the volume of the compression chamber 5 and, on the other hand, a second wall 11 which extends around the first wall 10 with a certain spacing 12 intended for the circulation of the first fluid 4.
- the pump body 2 consists of two subassemblies 13, 14, said first 13 and second 14, which are assembled in a joint plane 15 substantially orthogonal to the longitudinal axes 70, 80 of the rotors 7, 8.
- the two subassemblies 13, 14 constituting the pump body 2 and the rotors 7, 8 make it possible to constitute a pump 1.
- each first subassembly 13 and second subassembly 14 comprises a rigid element 16 which, molded in a first thermally conductive material, has two opposite faces, including a first face 18 and a second face 19, with,
- the first wall 10 which, molded with this rigid element 16, extends substantially orthogonal to said first face 18 and is,
- the second wall 11 which extends substantially orthogonally to said first face 18 and parallel to the fourth face 21 of the first wall 10, while being devoid of any connection with said fourth face 21,
- cutouts 23 which each constitute at least one housing for a first member of rotating guide 9 of one of the opposite ends 71, 72, 81, 82 of one of the rotors 7, 8.
- a pump body 2 comprising a first and a second subassembly 13, 14 which are adapted to include many common features, or even to be identical.
- the first wall 10 is associated with the rigid element 16 which carries it by a connecting portion 24 which allows a displacement of said first wall 10 in a first direction substantially orthogonal to the joint plane 15, by elastic deformation of said connecting portion 24.
- the connecting portion 24 is constituted by a zone of the rigid element 16 which borders the first wall 10.
- this zone is constituted by a thinned portion of the rigid element 16.
- this thinned area extends in a first plane 26 substantially parallel to the joint plane 15.
- Each cutout 23 set back from the first face 18 also constitutes a housing for a second member 27 intended to sealing between each of the opposite ends 71, 72, 81, 82 of an elongated rotor 7, 8 and the rigid element 16 in which the cut 23 is located.
- the second member 27 provides a seal called “dynamic”, that is to say an effective seal during rotation of the rotors.
- each cutout 23 consists of a bore which comprises a first bearing surface 231 for a first rotational guiding member 9 of an end 71, 72, 81, 82 of rotor 7, 8 and a second bearing 232 for a second member 27 intended to seal between an end 71, 72, 81, 82 of the rotor 7, 8 and the rigid element 16 at which this end is located.
- each rotor 7, 8 is rotated and the rotations of the different rotors 7, 8 are synchronized.
- one of the subassemblies 13, 14 constituting the pump body 2 is associated with a housing 17 and a cover 28.
- the housing 17 or the cover 28 which houses a mechanism for synchronously rotating the different rotors 7, 8 housed in the pump body 2.
- At least one of said first subassembly 13 and second subassembly 14 is equipped with bores which pass right through the rigid element they comprise and the rotors have their ends which pass through said bores so as to extend beyond the second face of the rigid element considered.
- Means for driving rotors 7, 8 in synchronized rotation can be associated with the ends which pass through said bores so as to extend beyond the second face of the rigid element in question.
- the first subassembly 13 and the second subassembly 14 are equipped with bores which pass right through the rigid element 16 which they comprise and the second face 19 of the rigid element 16 of one of said first and second subassemblies 13, 14 carries at least one cover 28 which sealingly closes said bores.
- the first subassembly 13 and the second subassembly 14 constituting the pump body 2 are assembled by means of third members 29 which urge them towards one another so as to closely apply the one against the other to the other.
- first subassembly 13 and the second subassembly 14 constituting the pump body 2 are connected to the means of third members 29 consisting of tie rods which:
- each extend in a second direction substantially orthogonal to the joint plane 15 and at least some of which pass through the space between the first wall 10 and the second wall 11 of each first subassembly 13 and second subassembly 14,
- each rigid element 16 that comprises one of said first and second subassemblies 13, 14.
- the third members 29 are supported on spans (not shown) which, reserved in the rigid element 16, are set back from said second face 19.
- the adoption of these technical characteristics also ensures the cohesion of the assembly of the first subassembly 13 with the second subassembly 14 by making it possible to apply the assembly constraints in massive zones of said subassemblies, and this, in seconds. directions which are tangent to the first wall 10.
- first subassembly 13 and the second subassembly 14 constituting the pump body 2 are assembled by means of third members 29 which urge said first and second subassemblies 13, 14 towards each other so as to apply closely, one against the other, the fifth faces 22 of the rigid elements 16 of each first subassembly 13 and second subassembly 14,
- each first subassembly 13 and second subassembly 14 extends beyond the first face 18 and comprises a face which, said sixth face 31, extends in a second plane 32 parallel to the fifth face 22 of the same first or second subassembly 13, 14, but set back relative to this fifth face 22, so that when the fifth faces 22 of the first subassembly 13 and the second subassembly 14 are supported one on the other side, the sixth faces 31 of these subassemblies 13, 14 are separated by a predetermined value "E", so that a gap 33 remains between them.
- the sixth faces 31 are spaced apart by a value "E" of between a few hundredths of a millimeter and a few tenths of a millimeter.
- At least one of the fifth faces 22 of the first subassembly 13 and the second subassembly 14 which bear on one another carries at least one first seal 35 which cooperates with the other fifth face 22 and ensures the peripheral sealing of the compression chamber 5 at the two fifth faces 22 placed in support against each other,
- At least one of the fifth faces 22 of the first subassembly 13 and the second subassembly 14 comprises a groove 34 receiving a first seal 35 which cooperates with the other fifth face 22.
- At least one first gasket 35 and the expression “at least one second gasket 36” mean that at least one sealing member is used and / or that the action of each gasket member sealing may be supplemented or reinforced by the use of a sealing material reported by, for example, by coating.
- the first seal 35 and the second seal 36 provide a static seal, that is to say a seal between fifth faces that are immobile relative to each other, or sixth faces that are immobile one. compared to each other.
- the first seal and the second seal have the appearance of a toric seal, but these are possible solutions for making each of said seals.
- the first seal 35 and the second seal 36 may also consist of flat seals or be constituted by means of a bead of material deposited on the faces to be assembled.
- the assembly surfaces constituted by the fifth face 22 of two first and second subassemblies intended to be assembled have complementary transverse positioning elements maie 37, female 38, so as to allow the relative transverse positioning of the first and second subassemblies .
- the fifth faces 22 are planar and the complementary positioning elements comprise pins 37 engaged in bores 38 made in each assembly surface formed by a fifth face 22.
- the assembly surface constituted by the fifth face 22 of each first or second subassembly 13, 14 has two complementary transverse positioning elements maie 37 and female 38 which are located in said third plane 39. In this way, the positioning of the two subassemblies 13, 14 of the pump body 2 is not affected by micro-slides induced by the succession of heating and cooling cycles undergone by the pump.
- first and second subassemblies 13, 14 that it comprises are constituted in such a way that the joint plane 15 is situated between one-quarter and three-quarters of the distance that separates the first faces 18 facing each other. to said first and second subsets 13, 14 assembled.
- the first and second subassemblies 13, 14 that they comprise are constituted in such a way that the plane of joint 15 is situated substantially at half the distance that separates the first faces 18 opposite said first and second assembled subassemblies 13, 14.
- the pump body 2 has at least a first channel 40 which allows the injection into the chamber of a third fluid 41, said dilution fluid, and from the outside of the compression chamber, at least this first channel 40 for conveying the third fluid 41 introduced by an inlet located in the rigid element 16 and expelled into the compression chamber 5 by at least one outlet orifice 42 located at the third face 20, is arranged in the thickness of said first wall 10.
- the third fluid 41 is symbolized by arrows that come from outlets 42.
- each first and second subassemblies 13, 14 is formed by overmolding.
- the second wall 11 of each first and second subassemblies 13, 14 is formed by overmolding a second identical material to the first material constituting the first wall 10.
- the second wall 11 of each first and second subassembly 13, 14 is formed by overmolding a second material distinct from the first material constituting the first wall 10.
- the rigid element 16 of each first and second subassemblies 13, 14 comprises a second channel 46 which opens into the first face 18 through an opening which, constituting one of said first orifice 44 or second orifice 45 is provided with a plane of symmetry 47 which is, on the one hand, located halfway between the longitudinal axes 70, 80 of the elongated rotors
- the second channel 46 is determined by transverse sections which each have a plane of symmetry 47 which is, on the one hand, located halfway between the longitudinal axes 70, 80 of the elongate rotors 7, 8 and, on the other hand perpendicular to the third plane 39 which contains the longitudinal axes 70, 80 of said rotors 7, 8.
- the hot fluid discharged from the compression chamber 5 brings the same amount of heat on either side of the plane of symmetry 47.
- Each first and second subassembly 13, 14 that it comprises has a plane of symmetry 47 which is, on the one hand, located halfway between the longitudinal axes 70, 80 of the elongated rotors 7 8 and, on the other hand perpendicular to the third plane 39 which contains the longitudinal axes 70, 80 of said rotors 7, 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES05787010.7T ES2597380T3 (es) | 2005-08-25 | 2005-08-25 | Cuerpo de bomba |
JP2008527314A JP5011297B2 (ja) | 2005-08-25 | 2005-08-25 | ポンプケーシング |
DK05787010.7T DK1917441T3 (en) | 2005-08-25 | 2005-08-25 | Pumpeaggregat |
PCT/EP2005/054194 WO2007022798A1 (fr) | 2005-08-25 | 2005-08-25 | Corps de pompe |
PT57870107T PT1917441T (pt) | 2005-08-25 | 2005-08-25 | Corpo de bomba |
CNA2005800514057A CN101248275A (zh) | 2005-08-25 | 2005-08-25 | 泵体 |
CA2618729A CA2618729C (fr) | 2005-08-25 | 2005-08-25 | Corps de pompe |
PL05787010.7T PL1917441T3 (pl) | 2005-08-25 | 2005-08-25 | Korpus pompy |
EP05787010.7A EP1917441B1 (fr) | 2005-08-25 | 2005-08-25 | Corps de pompe |
US11/990,135 US20100135837A1 (en) | 2005-08-25 | 2005-08-25 | Pump Casing |
KR1020087004386A KR101210400B1 (ko) | 2005-08-25 | 2005-08-25 | 펌프 케이싱 및, 펌프 케이싱을 포함하는 펌프 |
AU2005335899A AU2005335899B2 (en) | 2005-08-25 | 2005-08-25 | Pump housing |
TW095108495A TW200708665A (en) | 2005-08-25 | 2006-03-14 | Pump casing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2005/054194 WO2007022798A1 (fr) | 2005-08-25 | 2005-08-25 | Corps de pompe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007022798A1 true WO2007022798A1 (fr) | 2007-03-01 |
Family
ID=36143196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/054194 WO2007022798A1 (fr) | 2005-08-25 | 2005-08-25 | Corps de pompe |
Country Status (13)
Country | Link |
---|---|
US (1) | US20100135837A1 (fr) |
EP (1) | EP1917441B1 (fr) |
JP (1) | JP5011297B2 (fr) |
KR (1) | KR101210400B1 (fr) |
CN (1) | CN101248275A (fr) |
AU (1) | AU2005335899B2 (fr) |
CA (1) | CA2618729C (fr) |
DK (1) | DK1917441T3 (fr) |
ES (1) | ES2597380T3 (fr) |
PL (1) | PL1917441T3 (fr) |
PT (1) | PT1917441T (fr) |
TW (1) | TW200708665A (fr) |
WO (1) | WO2007022798A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130259717A1 (en) * | 2010-12-10 | 2013-10-03 | Ateliers Busch Sa | Vacuum pump for applications in vacuum packaging machines |
EP2143951A3 (fr) * | 2008-07-10 | 2014-06-25 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Compresseur rotatif à vis |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5727604B2 (ja) | 2010-07-12 | 2015-06-03 | ハンワ ケミカル コーポレイション | 伝導性塗料組成物及びそれを用いた伝導膜の製造方法 |
WO2012018242A2 (fr) | 2010-08-05 | 2012-02-09 | 한화케미칼 주식회사 | Composition de peinture à dissipation de chaleur et à haut rendement utilisant un matériau à base de carbone |
JP5822747B2 (ja) * | 2012-02-02 | 2015-11-24 | 住友重機械工業株式会社 | クライオポンプ |
DE102020113372A1 (de) | 2020-05-18 | 2021-11-18 | Leistritz Pumpen Gmbh | Schraubenspindelpumpe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2287716A (en) * | 1941-04-22 | 1942-06-23 | Joseph E Whitfield | Fluid device |
US2460957A (en) | 1944-12-20 | 1949-02-08 | Joseph E Whitfield | Housing joint |
JPS62218682A (ja) * | 1986-03-19 | 1987-09-26 | Hitachi Ltd | スクリユ−真空ポンプ |
JP2005036814A (ja) * | 2004-11-01 | 2005-02-10 | Nabtesco Corp | 容積移送型ポンプ |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2948992A1 (de) * | 1979-12-05 | 1981-06-11 | Karl Prof.Dr.-Ing. 3000 Hannover Bammert | Rotorverdichter, insbesondere schraubenrotorverdichter, mit schmiermittelzufuhr zu und schmiermitteldrainage von den lagern |
DE3573152D1 (en) * | 1984-04-11 | 1989-10-26 | Hitachi Ltd | Screw type vacuum pump |
US4955352A (en) * | 1986-02-26 | 1990-09-11 | Aisin Seiki Kabushiki Kaisha | Combined supercharger and supercharger coolant pump for an internal combustion engine |
US4781553A (en) * | 1987-07-24 | 1988-11-01 | Kabushiki Kaisha Kobe Seiko Sho | Screw vacuum pump with lubricated bearings and a plurality of shaft sealing means |
JPH02245493A (ja) * | 1989-03-20 | 1990-10-01 | Hitachi Ltd | スクリュー真空ポンプ |
JPH05296159A (ja) * | 1992-04-20 | 1993-11-09 | Tokico Ltd | 容積式回転機用ロータ |
JP3240851B2 (ja) * | 1994-09-09 | 2001-12-25 | 株式会社日立製作所 | ドライスクリュー流体機械 |
JP3456090B2 (ja) * | 1996-05-14 | 2003-10-14 | 北越工業株式会社 | 油冷式スクリュ圧縮機 |
JPH10318168A (ja) * | 1997-05-22 | 1998-12-02 | T D Giken:Kk | 容積移送型ポンプ |
DE19745616A1 (de) * | 1997-10-10 | 1999-04-15 | Leybold Vakuum Gmbh | Gekühlte Schraubenvakuumpumpe |
JP4062001B2 (ja) * | 2001-10-19 | 2008-03-19 | 株式会社デンソー | 気体圧縮装置 |
-
2005
- 2005-08-25 AU AU2005335899A patent/AU2005335899B2/en active Active
- 2005-08-25 EP EP05787010.7A patent/EP1917441B1/fr active Active
- 2005-08-25 DK DK05787010.7T patent/DK1917441T3/en active
- 2005-08-25 KR KR1020087004386A patent/KR101210400B1/ko active IP Right Grant
- 2005-08-25 PL PL05787010.7T patent/PL1917441T3/pl unknown
- 2005-08-25 CN CNA2005800514057A patent/CN101248275A/zh active Pending
- 2005-08-25 PT PT57870107T patent/PT1917441T/pt unknown
- 2005-08-25 WO PCT/EP2005/054194 patent/WO2007022798A1/fr active Application Filing
- 2005-08-25 JP JP2008527314A patent/JP5011297B2/ja active Active
- 2005-08-25 CA CA2618729A patent/CA2618729C/fr active Active
- 2005-08-25 US US11/990,135 patent/US20100135837A1/en not_active Abandoned
- 2005-08-25 ES ES05787010.7T patent/ES2597380T3/es active Active
-
2006
- 2006-03-14 TW TW095108495A patent/TW200708665A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2287716A (en) * | 1941-04-22 | 1942-06-23 | Joseph E Whitfield | Fluid device |
US2460957A (en) | 1944-12-20 | 1949-02-08 | Joseph E Whitfield | Housing joint |
JPS62218682A (ja) * | 1986-03-19 | 1987-09-26 | Hitachi Ltd | スクリユ−真空ポンプ |
JP2005036814A (ja) * | 2004-11-01 | 2005-02-10 | Nabtesco Corp | 容積移送型ポンプ |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 078 (M - 675) 11 March 1988 (1988-03-11) * |
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2143951A3 (fr) * | 2008-07-10 | 2014-06-25 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Compresseur rotatif à vis |
US20130259717A1 (en) * | 2010-12-10 | 2013-10-03 | Ateliers Busch Sa | Vacuum pump for applications in vacuum packaging machines |
AU2011341031B2 (en) * | 2010-12-10 | 2016-10-27 | Ateliers Busch Sa | Vacuum pump for applications in vacuum packaging machines |
US9638181B2 (en) * | 2010-12-10 | 2017-05-02 | Ateliers Busch Sa | Vacuum pump for applications in vacuum packaging machines |
Also Published As
Publication number | Publication date |
---|---|
CA2618729C (fr) | 2013-08-13 |
JP5011297B2 (ja) | 2012-08-29 |
DK1917441T3 (en) | 2016-10-31 |
AU2005335899A1 (en) | 2007-03-01 |
PT1917441T (pt) | 2016-10-12 |
ES2597380T3 (es) | 2017-01-18 |
JP2009506245A (ja) | 2009-02-12 |
CA2618729A1 (fr) | 2007-03-01 |
EP1917441B1 (fr) | 2016-07-13 |
AU2005335899B2 (en) | 2011-06-09 |
TW200708665A (en) | 2007-03-01 |
PL1917441T3 (pl) | 2016-12-30 |
CN101248275A (zh) | 2008-08-20 |
US20100135837A1 (en) | 2010-06-03 |
EP1917441A1 (fr) | 2008-05-07 |
KR101210400B1 (ko) | 2012-12-10 |
KR20080037685A (ko) | 2008-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1917441B1 (fr) | Corps de pompe | |
EP2137477B1 (fr) | Échangeur de chaleur pour gaz | |
EP2931093B1 (fr) | Chaudière pour machine de préparation de boisson | |
EP0407280B1 (fr) | Perfectionnements aux raccords de tuyauteries | |
EP2713083B1 (fr) | Vanne de distribution et de régulation à boisseau rotatif | |
FR3096096A1 (fr) | Pompe à vide primaire sèche | |
FR3048495B1 (fr) | Reservoir de materiau a changement de phase muni d'un tube de remplissage dudit reservoir, pour un echangeur de chaleur d'une installation de conditionnement d'air d'un vehicule automobile | |
FR2965606A1 (fr) | Echangeur de chaleur pour vehicule automobile | |
FR2947331A1 (fr) | Echangeur de chaleur comprenant un faisceau de tubes avec au moins un tube inactif | |
FR2967245A1 (fr) | Echangeur de chaleur, notamment pour vehicule automobile, et procedes d'assemblage correspondants | |
FR2688571A1 (fr) | Dispositif de raccordement pour tuyaux. | |
FR2559870A1 (fr) | Valve en champignon montee en ligne | |
FR3112174A1 (fr) | Pompe à vide sèche | |
FR2819876A1 (fr) | Module de bloc changeur de teinte pour installation de peinture | |
FR2862338A1 (fr) | Dispositif de liaison entre un distributeur et une enceinte d'alimentation pour injecteurs de fluide de refroidissement dans une turbomachine | |
EP3384224B1 (fr) | Échangeur de chaleur pour véhicule automobile comprenant une boîte collectrice | |
FR2866699A1 (fr) | Echangeur thermique a plaques nervurees soudees | |
FR3096447A1 (fr) | Echangeur de chaleur et système d’échange thermique associé pour véhicule | |
FR2777638A1 (fr) | Condenseur a reservoir integre pour bloc de traitement de fluide amovible, notamment pour un circuit de climatisation de vehicule automobile | |
FR2809456A1 (fr) | Collecteur ou repartiteur d'admission a plusieurs tubulures | |
EP4345578A1 (fr) | Plaque froide assemblée pour lame de calcul | |
WO2000037872A1 (fr) | Echangeur de chaleur a espace annulaire | |
EP3707772B1 (fr) | Élément de refroidissement d'un dispositif de stockage électrique pour véhicule automobile | |
EP1262743A1 (fr) | Dispositif de raccordement pour poste de comptage d'eau | |
FR2759447A1 (fr) | Condenseur a reservoir integre pour installation de climatisation, notamment de vehicule automobile |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 11990135 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2618729 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005335899 Country of ref document: AU |
|
REEP | Request for entry into the european phase |
Ref document number: 2005787010 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005787010 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008527314 Country of ref document: JP Ref document number: 1020087004386 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580051405.7 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2005335899 Country of ref document: AU Date of ref document: 20050825 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2005335899 Country of ref document: AU |
|
WWP | Wipo information: published in national office |
Ref document number: 2005787010 Country of ref document: EP |