EP1503034B1 - Gerotor-maschine - Google Patents

Gerotor-maschine Download PDF

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Publication number
EP1503034B1
EP1503034B1 EP03725936A EP03725936A EP1503034B1 EP 1503034 B1 EP1503034 B1 EP 1503034B1 EP 03725936 A EP03725936 A EP 03725936A EP 03725936 A EP03725936 A EP 03725936A EP 1503034 B1 EP1503034 B1 EP 1503034B1
Authority
EP
European Patent Office
Prior art keywords
shell
rotor
stator
way
machine
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
EP03725936A
Other languages
English (en)
French (fr)
Other versions
EP1503034A1 (de
EP1503034A4 (de
Inventor
Vladimir Vsevolodovich Davydov
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1503034A1 publication Critical patent/EP1503034A1/de
Publication of EP1503034A4 publication Critical patent/EP1503034A4/de
Application granted granted Critical
Publication of EP1503034B1 publication Critical patent/EP1503034B1/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
    • 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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • 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
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor
    • F04C2250/201—Geometry of the rotor conical shape

Definitions

  • the invention relates to hydro and pneumatic engineering and can be used as a pump, a compressor or a motor.
  • Patent SU, A1, 909305 protects a gerotor machine, comprising a ring stator with contactors, a rotor with displacers, coaxiallymounted with respect to the stator with the formation of working chambers between their matingsurfaces; end surfaces of the rotor and the stator are provided with ring grooves and collars with matingsurfaces, and every working chamber is performed in the form of two profiled grooves, located at one of the matingsurfaces on both sides of collar in one angular sector.
  • a disadvantage of said device is its low efficiency as a result of small capacity of working chambers.
  • Patent SU, A1, 1237092 protects a gerotor machine, comprising a frame-mounted stator, performed with constant or alternating thread pitch and epicycloidal in cross-section, a spindle located in the stator with outer screw vaulted cross-section surface, having a thread pitch different from the inner screw surface of the stator, stator's inner screw surface and spindle's outer screw surface are mounted with the possibility of locking with or without clearance; the device is provided with a gear unit mounted between the stator and the spindle, spindle's vaulted cross-section is performed with the thread pitch one-unit bigger than stator's thread pitch, spinder's thread pitch is divisible by stator's thread pitch, and the gear unit is performed with transmission ratio equal to the ratio of stator's and spindle's pitches.
  • a disadvantage of said device is a huge constructive complexity and, as a consequence, low reliability.
  • the rotor is arranged in the shell in such a way that working chambers are formed between the mating surfaces thereof.
  • the shell is disposed inside the stator in such a way that it is rotatable and that working chambers are formed between the mating surfaces thereof.
  • the passage area between the rotor and shell and between the shell and stator is embodied in such a way that it is variable along the longitudinal axis of the machine.
  • US, A, 2085115 discloses such a machine. This engineering solution is taken as prototype of the present invention.
  • the machine In order to remove clearances between the machine elements and, respectively, to restore the compression, the machine shall be disassembled and worn-out elements or their elastic covers shall be changed, which is a rather labour-intensive process.
  • the aim of the said invention is to develop a gerotor machine which makes it possible to automatically compensate the clearances formed between the rotor and shell, and between the shell and stator.
  • the inventive gerotor type machine for displacing liquids and gases along the longitudinal axis thereof comprising a stator, a screw rotor and a shell, the rotor being arranged in the shell in such a way that working chambers are formed between the mating surfaces thereof, and the shell being disposed inside the stator in such a way that it is rotatable and that working chambers are formed between the mating surfaces thereof, the passage area between the rotor and shell and between the shell and stator being embodied in such a way that it is variable along the longitudinal axis of the machine, wherein said rotor and shell are embodied in such a way that they are displaceable by an axial force for tightening the rotor, shell and stator to each other, thereby automatically taking up clearances when they are formed.
  • a direct technical result which may be obtained when realizing substantial features of the claimed invention is the fact that the clearances formed on account of rotor, shell and stator deterioration are automatically removed, as under the effect of axial force the said machine elements are displaced and tightly compressed one to another. No stops for the perception of axial force exerting effect upon the rotor and the shell are required, as the rotor rests upon the shell, and the shell - upon the stator. As a result of the automatic removal of clearances, the reduction of compression of the gerotor machine is prevented and the necessity of frequent disassembly and assembly of the machine when its components deteriorate is eliminated.
  • the gerotor machine comprises screw rotor 1 and shell 2.
  • Rotor 1 is located in shell 2 in such a way that working chambers 3 are formed between their mating surfaces, the passage area between rotor 1 and shell 2 is variable along the longitudinal axis of the machine; roller 4 is connected with rotor 1; shell 2 is disposed in such a way that it can be rotated inside stator 5.
  • the gerotor machine comprises suction pipe 7 and discharge pipe 8. Lower end of the rotor is provided with axis 9, located in bearing 10. Roller 4 is located in bearing 11. Roller 4 is fixed into blind hole 12; torque is transferred by means of dowel 13. Axis 9 can slide relative to bearing 10 within clearance 14.
  • the machine is used as a pump, but can be used also to transfer gas.
  • the machine can also be operated in hydro- or pneumomotor mode.
  • the device works as follows.
  • the liquid enters into suction pipe 7 and then, under the rotation of rotor 1 and shell 2, enters into discharge pipe 8 through working chambers 3 and 6.
  • the rubbing elements rotor, shell, stator
  • the rotor and the shell are displaced along the machine longitudinal axis in the direction of the suction pipe as a result of axial force effect, the clearance between them is taken up and they are tightened to one another thereof, which prevents from the decrease of compression of the gerotor machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Claims (1)

  1. Gerotor-Maschine zur Verdrängung von Flüssigkeiten und Gasen entlang ihrer Längsachse, umfassend einen Stator (5), einen Schraubenrotor (1) und einen Mantel (2), wobei der Rotor (1) so in dem Mantel (2) angeordnet ist, dass Arbeitskammern (3) zwischen ihren Berührungsflächen ausgebildet sind, und der Mantel (2) so im Inneren des Stators (5) angeordnet ist, dass er drehbar ist und dass Arbeitskammern (3) zwischen ihren Berührungsflächen ausgebildet sind, wobei der Durchflussbereich zwischen dem Rotor (1) und dem Mantel (2) und zwischen dem Mantel (2) und dem Stator (5) so ausgeführt ist, dass er entlang der Längsachse der Maschine variabel ist,
    dadurch gekennzeichnet,
    dass der Rotor (1) und der Mantel (2) so ausgeführt sind, dass sie durch Axialkraft verschiebbar sind, um eine Anordnung zu schaffen, bei der der Rotor (1), der Mantel (2) und der Stator (5) dicht aneinander liegen.
EP03725936A 2002-04-24 2003-04-22 Gerotor-maschine Expired - Lifetime EP1503034B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU2002112374/06A RU2214513C1 (ru) 2002-04-24 2002-04-24 Героторная машина
RU2002112374 2002-04-24
PCT/RU2003/000196 WO2003091543A1 (fr) 2002-04-24 2003-04-22 Machine a rotor dente

Publications (3)

Publication Number Publication Date
EP1503034A1 EP1503034A1 (de) 2005-02-02
EP1503034A4 EP1503034A4 (de) 2008-03-19
EP1503034B1 true EP1503034B1 (de) 2011-08-31

Family

ID=29268135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03725936A Expired - Lifetime EP1503034B1 (de) 2002-04-24 2003-04-22 Gerotor-maschine

Country Status (5)

Country Link
EP (1) EP1503034B1 (de)
AT (1) ATE522700T1 (de)
AU (1) AU2003231438A1 (de)
RU (1) RU2214513C1 (de)
WO (1) WO2003091543A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005838A1 (en) * 2003-07-14 2005-01-20 Elthom Enterprises Limited Rotary screw compressor with multiple stages
US20070264147A1 (en) * 2004-01-14 2007-11-15 Elthom Enterprises Limited Method of Transforming Energy in a Rotary Screw Machine of Volumetric Type
EP1813812B1 (de) * 2006-01-26 2008-11-26 Grundfos Management A/S Exzenterschneckenpumpe
DE502007001761D1 (de) * 2007-11-02 2009-11-26 Grundfos Management As Moineau-Pumpe
DE202009002823U1 (de) * 2009-03-02 2009-07-30 Daunheimer, Ralf Exzenterschneckenpumpe
EP2532833B1 (de) * 2011-06-10 2015-07-29 ViscoTec Pumpen-u. Dosiertechnik GmbH Förderelement für eine Exzenterschneckenpumpe und Exzenterschneckenpumpe
CN103758756B (zh) * 2014-01-22 2016-01-06 中国石油天然气股份有限公司 平衡式金属螺杆泵
EP3767105B1 (de) * 2019-07-16 2021-12-29 Arnold Jäger Holding GmbH Stator für eine exzenterschneckenpumpe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085115A (en) 1934-05-02 1937-06-29 Moineau Rene Joseph Louis Gear mechanism
SE85331C1 (de) * 1935-03-11 1936-01-21
SE140005C1 (de) * 1951-08-16 1953-04-21
GB1215569A (en) * 1969-08-29 1970-12-09 Paul Gerhard Langer Rotary positive-displacement pumps
DE2240423A1 (de) * 1972-08-17 1974-03-07 Hermetic Pumpen Gmbh Foerdereinrichtung, insbesondere foerderpumpe
HU175810B (hu) 1977-12-28 1980-10-28 Orszagos Koolaj Gazipari Protochnoe mnogocelevoe ustrojstvo s osevym protokom
SU909305A1 (ru) 1978-06-02 1982-02-28 За витель Объемна роторна гидромашина
SU1437575A1 (ru) * 1987-03-17 1988-11-15 И.М.Чесноков и А.И.Чеснаков Двухвинтовой растворонасос
RU2157895C2 (ru) * 1998-06-18 2000-10-20 Богданов Эдуард Васильевич Роторно-спиральный двигатель

Also Published As

Publication number Publication date
ATE522700T1 (de) 2011-09-15
WO2003091543A1 (fr) 2003-11-06
AU2003231438A1 (en) 2003-11-10
EP1503034A1 (de) 2005-02-02
EP1503034A4 (de) 2008-03-19
RU2214513C1 (ru) 2003-10-20

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