EP0044530A1 - Elektrisches Pumpenaggregat mit Flügelkolben und Öldichtung - Google Patents

Elektrisches Pumpenaggregat mit Flügelkolben und Öldichtung Download PDF

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Publication number
EP0044530A1
EP0044530A1 EP81105579A EP81105579A EP0044530A1 EP 0044530 A1 EP0044530 A1 EP 0044530A1 EP 81105579 A EP81105579 A EP 81105579A EP 81105579 A EP81105579 A EP 81105579A EP 0044530 A1 EP0044530 A1 EP 0044530A1
Authority
EP
European Patent Office
Prior art keywords
pumping
rotor
stator
electric
motor
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.)
Withdrawn
Application number
EP81105579A
Other languages
English (en)
French (fr)
Inventor
Jacques Long
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
Compagnie Industrielle de Telecommunication CIT Alcatel 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 Alcatel CIT SA, Compagnie Industrielle de Telecommunication CIT Alcatel SA filed Critical Alcatel CIT SA
Publication of EP0044530A1 publication Critical patent/EP0044530A1/de
Withdrawn legal-status Critical Current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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant

Definitions

  • the invention relates to an electric pump unit, vane, with oil seal comprising on the one hand an electric motor stator element and an electric motor rotor element and on the other hand a stator pumping element and a rotor element central pumping.
  • the electric drive functions on the one hand, and pumping on the other hand are ensured by a juxtaposition of separate parts, usually using a coupling sleeve or a common shaft. This results in significant bulk.
  • the object of the invention is to provide an electric pumping unit having a reduced overall size and consequently a low cost price.
  • the subject of the invention is an electric pump unit, vane, with oil seal, comprising on the one hand an electric motor stator element and an electric motor rotor element and on the other hand a stator pumping element and an element central pump rotor, characterized in that the pump stator element is arranged concentrically inside the motor stator element and in that the pump rotor element is produced by the motor rotor element, said rotor element motor having an eccentric axis of rotation inside the enclosure constituted by the stator pumping element.
  • the pumping rotor element comprises at least two movable vanes arranged in peripheral notches.
  • the pumping rotor element can be arranged tangentially in contact with the pumping stator element along a generator of the pumping enclosure.
  • the rotor element is disposed mobile around a fixed rotor axis.
  • the group constituting a pump vacuum with oil seal, the rotor axis comprises' on one end an electromagnetic control of an oil circulation sealing valve.
  • the pumping group shown in the figures is constituted by a vacuum pump with oil seal vane.
  • An oil tank 1 of the pumping group rests on the ground by rubber feet 11 and is provided with a filling orifice 12, a drainage orifice 13 and a level 14 of oil.
  • the lower volume of the tank 1 is filled with oil 15 while the upper volume is occupied by an oil separator 16 into which opens a discharge orifice 17.
  • a fan 2 comprising a stator 21 supporting by means of a peripheral bearing 22 a rotor 23 provided on its outer part with blades 24.
  • the lower flange 3 of the electric pump which comprises an electric motor stator element 4, a pumping stator element 5, a rotor element 6 and an upper flange 7.
  • the electric motor stator element 4 comprises in a known manner a conventional electric winding wound on a magnetic circuit, the details of which have not been shown, and which are arranged inside a peripheral carcass 41 of aluminum, comprising longitudinally ventilation channels 42 between cooling fins 43.
  • a pumping stator element 5 of cylindrical shape of revolution made of non-magnetic material of small thickness.
  • the stator element constitutes in cooperation with the lower flange 3 and the upper flange 7 a sealed pumping chamber 50, for example using seals not shown.
  • the rotor 6 Inside the pumping chamber 50 is arranged the rotor 6 in the form of a squirrel cage, which constitutes the electric rotor element of the electric stator element 4.
  • the rotor 6 rotates around a shaft 30 integral with the lower flange 3 with which it came from the foundry, bearings 61 being interposed between the shaft 30 and an internal bore of the rotor 6.
  • the shaft 30 is off-center relative to the axis of the stator elements 4 and 5. Its end is disposed in a housing 70 of the flange 7.
  • the rotor 6, the outside diameter of which is less than the internal diameter of the stator element 5, is tangent to the stator element 5 along a generator marked at 51.
  • the rotor 6 has on its periphery two diametrically opposite longitudinal notches 62 in each of which is arranged a pallet 63 movable between the bottom of the slot 62 and the internal wall of the stator element 5.
  • the flange 7 comprises at approximately eighty degrees from the generator 51 in the direction of rotation a suction port 71 connected to a suction line 72, then at one hundred and sixty about ten degrees from the suction opening an opening 73 in relation to a ballast of air 74.
  • the flanges 3 and 7 have on their periphery fins 43 and 75 arranged in the extension of the fins 43.
  • the lower flange has in its central part opposite the shaft 30 a cylindrical hub 31 on which is threaded the stator 21 of the fan 2.
  • the flange 3 and the hub 31 are drilled on the one hand at one hundred and eighty degrees of the generator 51 of an orifice 32 connected to the outlet orifice 81 of a nozzle 8 placed in the oil of the reservoir 1, and on the other hand to about two hundred and eighty degrees from an exhaust orifice 34 opening into the separator 16 via a valve 33.
  • the hub 31, the flange 3 and the adjoining part of the shaft 30 are pierced with a bore 35 in which is disposed a movable axis 82 of magnetic material which is subjected to the bottom of the bore 35 on one end at the antagonistic action of a spring 36 and which carries on the other end a needle 83 cooperating with the inlet orifice 84 of the nozzle 8.
  • the electric pump carries longitudinally a connection box 44 for the electrical connection of the stator element 4 of the pump and of the stator element 21 of the fan.
  • a cover 9 covers the lower flange 3, the fins 43 of the carcass 41, the upper flange 7 and the ballast of air 74.
  • the bottom of the cover 9 has perforations such as 91 to allow the coolant circulated to escape. by the fan 2 in the space between the carcass 41 and the cover 9 and an air intake 92 under the base of the cover 9.
  • the operation of the group is as follows.
  • the rotor 6 starts to rotate in the direction of the arrow F and the paddles 63 sweep the cylindrical wall of the stator element 5 against which it is pressed due to the centrifugal force.
  • the movable axis 82 is subjected to a magnetic attraction on the part of the rotor against the spring 36, which releases the needle 83 from the orifice 84 of the nozzle 8, which, when stationary, constitutes a oil circulation valve. Therefore, the rotor 6 operates like a conventional vane pump with an oil seal.
  • Such an electric pumping unit whose size is reduced can be applied to vacuum pumps as well as to liquid ring pumps or even to refrigeration compressors including hermetic type.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP81105579A 1980-07-23 1981-07-16 Elektrisches Pumpenaggregat mit Flügelkolben und Öldichtung Withdrawn EP0044530A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8016225 1980-07-23
FR8016225A FR2487446B1 (fr) 1980-07-23 1980-07-23 Groupe de pompage electrique a palette, a joint d'huile, d'encombrement reduit

Publications (1)

Publication Number Publication Date
EP0044530A1 true EP0044530A1 (de) 1982-01-27

Family

ID=9244443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105579A Withdrawn EP0044530A1 (de) 1980-07-23 1981-07-16 Elektrisches Pumpenaggregat mit Flügelkolben und Öldichtung

Country Status (4)

Country Link
US (1) US4407641A (de)
EP (1) EP0044530A1 (de)
JP (1) JPS5751990A (de)
FR (1) FR2487446B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459116A1 (de) * 1990-05-29 1991-12-04 Leybold Aktiengesellschaft Geräuscharme Vakuumpumpe
EP0761975A1 (de) * 1995-09-01 1997-03-12 Seiko Seiki Kabushiki Kaisha Gasverdichter
WO1998039571A1 (de) * 1997-03-05 1998-09-11 Mannesmann Ag Anlage zum verdichten eines gasförmigen mediums oder zur erzeugung eines vakuums
EP1120568A2 (de) * 1995-09-01 2001-08-01 Seiko Seiki Kabushiki Kaisha Gasverdichter
CN116292298A (zh) * 2023-05-11 2023-06-23 福建省泉州市力达机械有限公司 一种低噪音节能型无油螺杆鼓风机

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832094A (en) * 1987-06-18 1989-05-23 Michael Peterson Electric waterbed pump
US4861468A (en) * 1988-02-01 1989-08-29 Willinger Brothers, Inc. Rotor impeller assembly
FR2651839B1 (fr) * 1989-09-22 1992-07-10 Seeley Nominees Pty Ltd Ff Pompe immergee.
US5165868A (en) * 1991-04-29 1992-11-24 Tuthill Corporation Magnetically driven pump
US5263829A (en) * 1992-08-28 1993-11-23 Tuthill Corporation Magnetic drive mechanism for a pump having a flushing and cooling arrangement
CA2132582C (en) * 1993-11-12 1999-01-05 Paul Gergets Magnetically driven positive displacement pump and thrust bearing assembly
JP3388657B2 (ja) * 1995-07-21 2003-03-24 アネスト岩田株式会社 オイルフリースクロール真空ポンプ
US6208052B1 (en) 1999-08-18 2001-03-27 Siemens Canada Limited Cooling module for an electronically controlled engine
US6270324B1 (en) * 1999-10-26 2001-08-07 Tuthill Corp. Positive displacement pump and thrust bearing assembly
US7040860B2 (en) * 2003-03-13 2006-05-09 Tetra Holding (Us), Inc. Uni-directional impeller, and impeller and rotor assembly
JP4791987B2 (ja) * 2007-03-06 2011-10-12 パナソニック電工株式会社 ベーンポンプ
CA2753510C (en) 2009-02-26 2017-05-30 Stt Technologies Inc., A Joint Venture Of Magna Powertrain Inc. And Shw Gmbh Integrated electric vane oil pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR735924A (fr) * 1931-05-15 1932-11-17 Bosch Robert Machine frigorifique
US2072307A (en) * 1934-05-14 1937-03-02 Reconstruction Finance Corp Compressor
US2324434A (en) * 1940-03-29 1943-07-13 William E Shore Refrigerant compressor
US2373909A (en) * 1941-09-25 1945-04-17 Gen Motors Corp Refrigerating apparatus
US2540714A (en) * 1945-01-22 1951-02-06 Thompson Prod Inc Pump
FR1003675A (fr) * 1947-02-10 1952-03-20 Perfectionnements aux groupes moto-compresseurs
US3560120A (en) * 1968-09-09 1971-02-02 Copeland Refrigeration Corp Rotary compressor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1849222A (en) * 1929-03-07 1932-03-15 Canton Refrigerators Inc Combination motor and pump
US2187033A (en) * 1937-01-08 1940-01-16 Borg Warner Electric motor
US2535019A (en) * 1942-04-29 1950-12-19 Steensen Sverre Johan Compressor
US2612311A (en) * 1949-01-26 1952-09-30 Borg Warner Compressor-motor assembly
US2703370A (en) * 1952-07-02 1955-03-01 Steensen Sverre Johan Electric compressor or pump motor with rolling rotor
US3310229A (en) * 1965-02-15 1967-03-21 Maehara Akira Rotary oil vacuum pump
GB1303430A (de) * 1969-06-12 1973-01-17
JPS49105218A (de) * 1973-02-09 1974-10-04
JPS5139205U (de) * 1974-09-19 1976-03-24

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR735924A (fr) * 1931-05-15 1932-11-17 Bosch Robert Machine frigorifique
US2072307A (en) * 1934-05-14 1937-03-02 Reconstruction Finance Corp Compressor
US2324434A (en) * 1940-03-29 1943-07-13 William E Shore Refrigerant compressor
US2373909A (en) * 1941-09-25 1945-04-17 Gen Motors Corp Refrigerating apparatus
US2540714A (en) * 1945-01-22 1951-02-06 Thompson Prod Inc Pump
FR1003675A (fr) * 1947-02-10 1952-03-20 Perfectionnements aux groupes moto-compresseurs
US3560120A (en) * 1968-09-09 1971-02-02 Copeland Refrigeration Corp Rotary compressor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459116A1 (de) * 1990-05-29 1991-12-04 Leybold Aktiengesellschaft Geräuscharme Vakuumpumpe
EP0761975A1 (de) * 1995-09-01 1997-03-12 Seiko Seiki Kabushiki Kaisha Gasverdichter
US5954482A (en) * 1995-09-01 1999-09-21 Seiko Seiki Kabushiki Kaisha Compressor having pressure eliminating means
EP1120568A2 (de) * 1995-09-01 2001-08-01 Seiko Seiki Kabushiki Kaisha Gasverdichter
EP1120568A3 (de) * 1995-09-01 2001-08-29 Seiko Seiki Kabushiki Kaisha Gasverdichter
WO1998039571A1 (de) * 1997-03-05 1998-09-11 Mannesmann Ag Anlage zum verdichten eines gasförmigen mediums oder zur erzeugung eines vakuums
CN116292298A (zh) * 2023-05-11 2023-06-23 福建省泉州市力达机械有限公司 一种低噪音节能型无油螺杆鼓风机
CN116292298B (zh) * 2023-05-11 2023-08-15 福建省泉州市力达机械有限公司 一种低噪音节能型无油螺杆鼓风机

Also Published As

Publication number Publication date
US4407641A (en) 1983-10-04
JPS5751990A (en) 1982-03-27
FR2487446B1 (fr) 1985-09-27
FR2487446A1 (fr) 1982-01-29

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19820712

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19840127

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LONG, JACQUES