WO2000057062B1 - Pump for generating pressure or negative pressure - Google Patents

Pump for generating pressure or negative pressure

Info

Publication number
WO2000057062B1
WO2000057062B1 PCT/EP2000/002536 EP0002536W WO0057062B1 WO 2000057062 B1 WO2000057062 B1 WO 2000057062B1 EP 0002536 W EP0002536 W EP 0002536W WO 0057062 B1 WO0057062 B1 WO 0057062B1
Authority
WO
WIPO (PCT)
Prior art keywords
housing cover
pump according
pump
pressure
rotors
Prior art date
Application number
PCT/EP2000/002536
Other languages
German (de)
French (fr)
Other versions
WO2000057062A1 (en
Inventor
Fritz-Martin Scholz
Original Assignee
Rietschle Werner Gmbh & Co Kg
Scholz Fritz Martin
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 Rietschle Werner Gmbh & Co Kg, Scholz Fritz Martin filed Critical Rietschle Werner Gmbh & Co Kg
Priority to EP00918828A priority Critical patent/EP1163450B1/en
Priority to AT00918828T priority patent/ATE260412T1/en
Priority to DE50005415T priority patent/DE50005415D1/en
Priority to AU39635/00A priority patent/AU762304B2/en
Priority to JP2000606903A priority patent/JP2002540346A/en
Publication of WO2000057062A1 publication Critical patent/WO2000057062A1/en
Publication of WO2000057062B1 publication Critical patent/WO2000057062B1/en
Priority to HK03100973A priority patent/HK1048844A1/en

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
    • 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
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps 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
    • F04C2/16—Rotary-piston machines or pumps 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)

Abstract

The invention relates to a pump for generating pressure or negative pressure, comprising a chamber having a high pressure branch and a low pressure branch. Two multi-bladed rotors (28, 30) are mounted on two shafts (20, 22) that are staggered relative to one another in the pump chamber (32). A drive mechanism is minted on the front face of the rotors and a housing lid is placed on the opposite side of said rotors. The housing lid (34) is pot-shaped. Both the high pressure branch (42) and the low pressure branch (40) are integrated into the housing lid (34).

Claims

GEÄNDERTE ANSPRÜCHE[beim Internationalen Büro am 27. September 2000 (27.09.00) eingegangen; ursprüngliche Ansprüche 1-11 durch geänderte Ansprüche 1-10 ersetzt (2 Seiten)] CHANGED CLAIMS [received at the International Bureau on September 27, 2000 (September 27, 2000); original claims 1-11 replaced by amended claims 1-10 (2 pages)]
1. Pumpe zur Erzeugung von Druck oder Unterdruck, mit einer Pumpenkammer, die einen Hochdruck-Anschluß und einen Niederdruck-Anschluß aufweist, zwei wenigstens zweiflügeligen Rotoren (28, 30), die auf zwei parallelen, gegeneinander versetzten Wellen (20, 22) in der Pumpenkammer (32) angebracht sind, einem auf einer Stirnseite der Rotoren angeordneten Antrieb und einem auf der gegenüberliegenden Seite angeordneten Gehäusedeckel, dadurch gekennzeichnet, daß der Gehäusedeckel (34) topfförmig ausgebildet ist, daß der Hochdruck-Anschluß (42) wie auch der Niederdruck-Anschluß (40) im Gehäusedeckel (34) integriert sind und daß zumindest ein wesentlicher Teil der Umfangswandung der Pumpenkammer (32) durch den Mantel des Gehäusedeckels (34) gebildet ist.1. Pump for generating pressure or negative pressure, with a pump chamber which has a high-pressure connection and a low-pressure connection, two at least two-bladed rotors (28, 30) in two parallel, mutually offset shafts (20, 22) in the pump chamber (32), a drive arranged on one end of the rotors and a housing cover arranged on the opposite side, characterized in that the housing cover (34) is pot-shaped, that the high-pressure connection (42) and the low pressure - Connection (40) are integrated in the housing cover (34) and that at least a substantial part of the peripheral wall of the pump chamber (32) is formed by the jacket of the housing cover (34).
2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Wellen (20, 22) einseitig auf der dem Antrieb (10) zugewandten Seite gelagert sind.2. Pump according to claim 1, characterized in that the shafts (20, 22) are mounted on one side on the side facing the drive (10).
3. Pumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Gehäusedeckel (34) in seiner die Pumpenkammer (32) stirnseitig begrenzenden Innenwand zwei Durchbrüche (46, 48) für den Hochdruck- und für den Nieder- druck-Anschluß aufweist .3. Pump according to one of the preceding claims, characterized in that the housing cover (34) has two openings (46, 48) for the high-pressure and for the low-pressure connection in its inner wall delimiting the pump chamber (32).
4. Pumpe nach Anspruch 3, dadurch gekennzeichnet, daß an jeden der Durchbrüche (46, 48) ein im Körper des Gehäusedeckels (34) integrierter Kanal (40, 42) anschließt.4. Pump according to claim 3, characterized in that at each of the openings (46, 48) in the body of the housing cover (34) integrated channel (40, 42) connects.
5. Pumpe nach Anspruch 3, dadurch gekennzeichnet, daß wenigstens einer der Kanäle (40, 42) zum Umfang des Gehäusedeckels (34) geführt ist und dort mündet. -8-5. Pump according to claim 3, characterized in that at least one of the channels (40, 42) is guided to the circumference of the housing cover (34) and opens there. -8th-
6. Pumpe nach Anspruch 5, dadurch gekennzeichnet, daß der Kanal (40, 42) einen parallel zu der Innenwand (44) des Gehäusedeckels verlaufenden ersten Kanalabschnitt, daran anschließend einen schräg in Richtung von der Innenwand fort und auswärts geneigten Kanalabschnitt sowie daran anschließend einen am Umfang des Gehäusedeckels (34) mündenden, zu dessen Innenwand parallelen Kanalabschnitt aufweist.6. Pump according to claim 5, characterized in that the channel (40, 42) runs parallel to the inner wall (44) of the housing cover first channel section, then an inclined in the direction of the inner wall and outward inclined channel section and then one at the periphery of the housing cover (34) opening, parallel to the inner wall has channel section.
7. Pumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß am Umfang des Gehäusedeckels (34) auf zwei voneinander abgewandten Seiten desselben zwei Anschlußflansche (50, 52) gebildet sind.7. Pump according to one of the preceding claims, characterized in that two connecting flanges (50, 52) are formed on the circumference of the housing cover (34) on two sides thereof facing away from one another.
8. Pumpe nach Anspruch 7, dadurch gekennzeichnet, daß die Anschlußflansche (50, 52) vertikal gegeneinander versetzt sind.8. Pump according to claim 7, characterized in that the connecting flanges (50, 52) are vertically offset from one another.
9. Pumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Flügelgeometrie der Rotoren (28, 30) für eine innere Verdichtung ausgelegt ist.9. Pump according to one of the preceding claims, characterized in that the wing geometry of the rotors (28, 30) is designed for internal compression.
10. Pumpe nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß die Wellen (20, 22) jeweils beiderseits eines Zahnrades (24, 26) gelagert sind. 10. Pump according to one of claims 2 to 9, characterized in that the shafts (20, 22) are each mounted on both sides of a gear (24, 26).
PCT/EP2000/002536 1999-03-22 2000-03-22 Pump for generating pressure or negative pressure WO2000057062A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP00918828A EP1163450B1 (en) 1999-03-22 2000-03-22 Pump for generating pressure or negative pressure
AT00918828T ATE260412T1 (en) 1999-03-22 2000-03-22 PUMP FOR GENERATING PRESSURE OR VACUUM PRESSURE
DE50005415T DE50005415D1 (en) 1999-03-22 2000-03-22 PUMP FOR PRODUCING PRESSURE OR VACUUM
AU39635/00A AU762304B2 (en) 1999-03-22 2000-03-22 Pump for generating pressure or negative pressure
JP2000606903A JP2002540346A (en) 1999-03-22 2000-03-22 Pumps that generate positive or negative pressure
HK03100973A HK1048844A1 (en) 1999-03-22 2003-02-11 Pump for generating pressure or negative pressure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29905249.4 1999-03-22
DE29905249U DE29905249U1 (en) 1999-03-22 1999-03-22 Pump for generating pressure and negative pressure

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/305,352 Continuation-In-Part US6729863B2 (en) 1999-03-22 2002-11-27 Rotary pump having high and low pressure ports in the housing cover

Publications (2)

Publication Number Publication Date
WO2000057062A1 WO2000057062A1 (en) 2000-09-28
WO2000057062B1 true WO2000057062B1 (en) 2000-12-07

Family

ID=8071227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/002536 WO2000057062A1 (en) 1999-03-22 2000-03-22 Pump for generating pressure or negative pressure

Country Status (9)

Country Link
EP (1) EP1163450B1 (en)
JP (1) JP2002540346A (en)
KR (1) KR100681804B1 (en)
CN (1) CN1324239C (en)
AT (1) ATE260412T1 (en)
AU (1) AU762304B2 (en)
DE (2) DE29905249U1 (en)
HK (1) HK1048844A1 (en)
WO (1) WO2000057062A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20216504U1 (en) 2002-10-25 2003-03-06 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Displacement machine with rotors running in opposite directions
WO2006071003A1 (en) * 2004-12-28 2006-07-06 Ki Chun Lee The rotary pump and multiple rotary pump employed thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057375A (en) * 1976-10-22 1977-11-08 Nachtrieb Paul W Pump structure
DE3161646D1 (en) * 1980-09-05 1984-01-19 British Nuclear Fuels Plc Pump for heavy gases
GB2101687B (en) * 1981-07-15 1984-08-30 British Oxygen Co Ltd Rotary pumping apparatus
GB2139287A (en) * 1983-05-05 1984-11-07 Dana Corp Gear-type rotary hydraulic machine
US4588358A (en) 1984-07-02 1986-05-13 Werner Rietschle Maschinen-Und Apparatebau Gmbh Rotary vane evacuating pump
ES2013417A6 (en) * 1989-03-30 1990-05-01 Inoxpa S A Housing for rotary pump.
US5207568A (en) 1991-05-15 1993-05-04 Vilter Manufacturing Corporation Rotary screw compressor and method for providing thrust bearing force compensation
US5772418A (en) 1995-04-07 1998-06-30 Tochigi Fuji Sangyo Kabushiki Kaisha Screw type compressor rotor, rotor casting core and method of manufacturing the rotor

Also Published As

Publication number Publication date
DE50005415D1 (en) 2004-04-01
DE29905249U1 (en) 1999-12-30
AU3963500A (en) 2000-10-09
HK1048844A1 (en) 2003-04-17
EP1163450B1 (en) 2004-02-25
KR100681804B1 (en) 2007-02-15
CN1365432A (en) 2002-08-21
ATE260412T1 (en) 2004-03-15
AU762304B2 (en) 2003-06-19
KR20020019892A (en) 2002-03-13
EP1163450A1 (en) 2001-12-19
JP2002540346A (en) 2002-11-26
WO2000057062A1 (en) 2000-09-28
CN1324239C (en) 2007-07-04

Similar Documents

Publication Publication Date Title
DE69029062T2 (en) Housing, in particular for radial centrifugal pumps and method for the production thereof
DE10228552A1 (en) Radial piston pump esp. for common-rail fuel injection systems for IC engines has drive shaft with end section on floating mounting for fuel feed pump in front of piston pump
DE3312117A1 (en) TWO-SHAFT VACUUM PUMP WITH INTERNAL COMPRESSION
EP0914561B1 (en) Piston pump with a pipe segment as a bushing
AT5308U1 (en) COMPRESSOR OF A HERMETIC COOLING UNIT WITH A VALVE SYSTEM
WO2000057062B1 (en) Pump for generating pressure or negative pressure
WO1999002857A2 (en) Radial piston pump for high-pressure fuel supply
DE102011100601A1 (en) pump device
WO1995030834A1 (en) Vane cell pump
DE1528968B1 (en) Gear pump
DE2700381A1 (en) DISPLACEMENT MACHINE
DE2550889C2 (en) Inner seal for rotary piston machines
DE19814477A1 (en) Radial piston pump for high-pressure fuel supply
WO2004079190A1 (en) Radial piston pump
DE4117618A1 (en) Two=part coin blank - has disc set into ring with pressing operation carried out to form secure bond
DE3445686A1 (en) HYDRAULIC PRESSURE FLUID SEAL
EP1292772A1 (en) Pump
DE19600740B4 (en) Vane pump
EP0815371A1 (en) Sealing arrangement for a flat flange connection
EP0291722B1 (en) Gear machine (pump or motor)
DE2905273A1 (en) WING CELL PUMP, IN PARTICULAR TO STEERING AID
DE102021133396A1 (en) Method of making a pump
DE3023710A1 (en) Gear type hydraulic pump - has pressure adjusting cowl resting on centre rest plates in casing ends to reduce wear
DE9403635U1 (en) Forming device for glass
EP1039135A2 (en) Internal gear pump with sealings incorporated in the teeth

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 00810988.5

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AU CN JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: B1

Designated state(s): AU CN JP KR US

AL Designated countries for regional patents

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

B Later publication of amended claims
WWE Wipo information: entry into national phase

Ref document number: 1020017012019

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2000 606903

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 39635/00

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2000918828

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000918828

Country of ref document: EP

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWP Wipo information: published in national office

Ref document number: 1020017012019

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 09936937

Country of ref document: US

WWG Wipo information: grant in national office

Ref document number: 39635/00

Country of ref document: AU

WWG Wipo information: grant in national office

Ref document number: 2000918828

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1020017012019

Country of ref document: KR