EP1163450B1 - Pumpe zur erzeugung von druck oder unterdruck - Google Patents

Pumpe zur erzeugung von druck oder unterdruck Download PDF

Info

Publication number
EP1163450B1
EP1163450B1 EP00918828A EP00918828A EP1163450B1 EP 1163450 B1 EP1163450 B1 EP 1163450B1 EP 00918828 A EP00918828 A EP 00918828A EP 00918828 A EP00918828 A EP 00918828A EP 1163450 B1 EP1163450 B1 EP 1163450B1
Authority
EP
European Patent Office
Prior art keywords
housing cover
pump
pump according
pressure
openings
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
EP00918828A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1163450A1 (de
Inventor
Fritz-Martin Scholz
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.)
Rietschle Werner GmbH and Co KG
Werner Rietschle GmbH and Co KG
Original Assignee
Rietschle Werner GmbH and Co KG
Werner Rietschle GmbH and Co KG
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 and Co KG, Werner Rietschle GmbH and Co KG filed Critical Rietschle Werner GmbH and Co KG
Publication of EP1163450A1 publication Critical patent/EP1163450A1/de
Application granted granted Critical
Publication of EP1163450B1 publication Critical patent/EP1163450B1/de
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
    • 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

Definitions

  • the invention relates to a pump for generating pressure or negative pressure according to the preamble of claim 1.
  • GB 2 139 287 A further discloses a hydraulic pump with two meshing gears located in a chamber are located in the lateral surface of the inlet and outlet channels open.
  • the rotors are bilateral, i. at each of the two axle ends, stored.
  • the pump chamber is on both ends by a part of the housing limited. Suction channel and pressure channel open into the lateral surface the pump chamber.
  • a rotary lobe pump in the form of a Roots blower described the two Having rotors which are arranged to fly on two mutually parallel axes are and the continuous transport of various non-compressible flow media enable.
  • the rotors are located in a chamber, the transmission side through a flat plate through which the axes of the two rotors are liquid-tight are guided, and on the side facing away from the transmission through a housing cover is limited, in the lateral surface - radially outward guided - connecting pieces for inlet and outlet are arranged.
  • the invention provides a very powerful pump space-saving and simple construction provided.
  • the housing cover thus has three functions: the frontal Limitation of the pump chamber, the peripheral wall of the pump chamber and the Recording the connection channels.
  • the housing cover can be rational as cast and Molded part can be produced.
  • the pump unit shown in Figure 1 has as an actuator an electric motor 10. This is laterally flanged to a fan cover 12. About a clutch 14 is the electric motor 10 to a fan wheel 16 within the fan hood 12 connected. The fan cover 12 is connected to a transmission housing 18th stated. In the gearbox 18 are two mutually parallel, staggered Shafts 20, 22 stored at one end. The shaft 20 is arranged in alignment with the axis of the electric motor 10 and is directly driven by this. Sitting on the shaft 20 a first, end-toothed gear 24, which with a second, sitting on the shaft 22 end-toothed gear 26 is in mesh.
  • the gear housing 18 forms with its rotors 28, 30th facing surface an end boundary wall of a Pump chamber 32, the rest by a to the Gear housing 18 attached, cup-shaped housing cover 34 is limited.
  • the housing cover 34 limited with his plane inner wall, the pump chamber 32 on the of Transmission housing 18 side facing away from and forms with his Coat the peripheral wall of the pump chamber 32nd
  • the Breakthrough 48 connects the channel 42, which also a first channel section parallel to the inner wall 44, a subsequent, outward oblique to Drive side inclined channel section and a turn to the inner wall 44 parallel channel section having, on the circumference of the housing cover 34 in a Connecting flange 52 opens.
  • the connecting flanges 50, 52 lie on opposite sides of the housing cover at different heights.
  • the flying bearing of the rotors 28, 30 remains in the Area of the free ends of the shafts 22, 24 space for a optimal design of the channels 40, 42 available.
  • the channels 40, 42 in terms of optimal flow conditions and favorable Connection conditions are designed.

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)
EP00918828A 1999-03-22 2000-03-22 Pumpe zur erzeugung von druck oder unterdruck Expired - Lifetime EP1163450B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29905249U DE29905249U1 (de) 1999-03-22 1999-03-22 Pumpe zur Erzeugung von Druck und Unterdruck
DE29905249U 1999-03-22
PCT/EP2000/002536 WO2000057062A1 (de) 1999-03-22 2000-03-22 Pumpe zur erzeugung von druck oder unterdruck

Publications (2)

Publication Number Publication Date
EP1163450A1 EP1163450A1 (de) 2001-12-19
EP1163450B1 true EP1163450B1 (de) 2004-02-25

Family

ID=8071227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00918828A Expired - Lifetime EP1163450B1 (de) 1999-03-22 2000-03-22 Pumpe zur erzeugung von druck oder unterdruck

Country Status (9)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20216504U1 (de) 2002-10-25 2003-03-06 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Verdrängermaschine mit gegensinnig laufenden Rotoren
CN101124404A (zh) * 2004-12-28 2008-02-13 李起春 旋转泵及使用其的多旋转泵

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 (es) * 1989-03-30 1990-05-01 Inoxpa S A Perfeccionamientos en la fabricacion de bombas rotativas.
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
AU3963500A (en) 2000-10-09
CN1324239C (zh) 2007-07-04
EP1163450A1 (de) 2001-12-19
KR20020019892A (ko) 2002-03-13
HK1048844A1 (en) 2003-04-17
CN1365432A (zh) 2002-08-21
AU762304B2 (en) 2003-06-19
DE29905249U1 (de) 1999-12-30
JP2002540346A (ja) 2002-11-26
ATE260412T1 (de) 2004-03-15
DE50005415D1 (de) 2004-04-01
KR100681804B1 (ko) 2007-02-15
WO2000057062B1 (de) 2000-12-07
WO2000057062A1 (de) 2000-09-28

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