EP1917441B1 - Corps de pompe - Google Patents

Corps de pompe Download PDF

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Publication number
EP1917441B1
EP1917441B1 EP05787010.7A EP05787010A EP1917441B1 EP 1917441 B1 EP1917441 B1 EP 1917441B1 EP 05787010 A EP05787010 A EP 05787010A EP 1917441 B1 EP1917441 B1 EP 1917441B1
Authority
EP
European Patent Office
Prior art keywords
sub
assembly
face
pump body
wall
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
Application number
EP05787010.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1917441A1 (fr
Inventor
Olivier Goepfert
Philippe Schwob
Théo BILGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ateliers Busch SA
Original Assignee
Ateliers Busch SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ateliers Busch SA filed Critical Ateliers Busch SA
Priority to PL05787010.7T priority Critical patent/PL1917441T3/pl
Publication of EP1917441A1 publication Critical patent/EP1917441A1/fr
Application granted granted Critical
Publication of EP1917441B1 publication Critical patent/EP1917441B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 substantially orthogonal joint plane 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.
  • the construction in two sub-assemblies half whose longitudinal dimension substantially corresponds to the half-length of the pump body is preferred because it facilitates the molding of the metal material.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 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 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.
  • 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 male 37, female 38, transverse positioning elements, 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 members male 37 and female 38 which are located in said third plane 39.
  • 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, situated midway 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.
  • 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.
  • At least the second exhaust port 45 of said second fluid 6 is shaped and disposed in the subassembly which includes it so as to allow the evacuation by gravity of condensates (not shown) located in the lower part. of the compression chamber 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP05787010.7A 2005-08-25 2005-08-25 Corps de pompe Expired - Lifetime EP1917441B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05787010.7T PL1917441T3 (pl) 2005-08-25 2005-08-25 Korpus pompy

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 (2)

Publication Number Publication Date
EP1917441A1 EP1917441A1 (fr) 2008-05-07
EP1917441B1 true EP1917441B1 (fr) 2016-07-13

Family

ID=36143196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05787010.7A Expired - Lifetime EP1917441B1 (fr) 2005-08-25 2005-08-25 Corps de pompe

Country Status (13)

Country Link
US (1) US20100135837A1 (pl)
EP (1) EP1917441B1 (pl)
JP (1) JP5011297B2 (pl)
KR (1) KR101210400B1 (pl)
CN (1) CN101248275A (pl)
AU (1) AU2005335899B2 (pl)
CA (1) CA2618729C (pl)
DK (1) DK1917441T3 (pl)
ES (1) ES2597380T3 (pl)
PL (1) PL1917441T3 (pl)
PT (1) PT1917441T (pl)
TW (1) TW200708665A (pl)
WO (1) WO2007022798A1 (pl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5180709B2 (ja) * 2008-07-10 2013-04-10 株式会社神戸製鋼所 スクリュ圧縮機
CN103108923B (zh) 2010-07-12 2016-03-23 韩华石油化学株式会社 导电涂料组合物及使用其制备导电膜的方法
KR101270932B1 (ko) 2010-08-05 2013-06-11 한화케미칼 주식회사 탄소소재를 이용한 고효율 방열도료 조성물
WO2012076204A2 (fr) * 2010-12-10 2012-06-14 Ateliers Busch Sa Pompe à vide pour applications dans des machines d'emballage sous vide
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
CN114922815A (zh) * 2022-04-22 2022-08-19 迈科微真空技术(苏州)有限公司 一种两段式泵体及其真空泵
CN115355170A (zh) * 2022-07-29 2022-11-18 迈科微真空技术(苏州)有限公司 一种高度集成的真空泵泵体

Family Cites Families (15)

* Cited by examiner, † Cited by third party
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
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
US4714418A (en) * 1984-04-11 1987-12-22 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
JPS62218682A (ja) * 1986-03-19 1987-09-26 Hitachi Ltd スクリユ−真空ポンプ
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
JP2005036814A (ja) * 2004-11-01 2005-02-10 Nabtesco Corp 容積移送型ポンプ

Also Published As

Publication number Publication date
DK1917441T3 (en) 2016-10-31
ES2597380T3 (es) 2017-01-18
PT1917441T (pt) 2016-10-12
CA2618729C (fr) 2013-08-13
AU2005335899B2 (en) 2011-06-09
AU2005335899A1 (en) 2007-03-01
KR20080037685A (ko) 2008-04-30
WO2007022798A1 (fr) 2007-03-01
US20100135837A1 (en) 2010-06-03
TW200708665A (en) 2007-03-01
CN101248275A (zh) 2008-08-20
JP5011297B2 (ja) 2012-08-29
JP2009506245A (ja) 2009-02-12
EP1917441A1 (fr) 2008-05-07
PL1917441T3 (pl) 2016-12-30
KR101210400B1 (ko) 2012-12-10
CA2618729A1 (fr) 2007-03-01

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