EP0359139A2 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

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Publication number
EP0359139A2
EP0359139A2 EP89116595A EP89116595A EP0359139A2 EP 0359139 A2 EP0359139 A2 EP 0359139A2 EP 89116595 A EP89116595 A EP 89116595A EP 89116595 A EP89116595 A EP 89116595A EP 0359139 A2 EP0359139 A2 EP 0359139A2
Authority
EP
European Patent Office
Prior art keywords
wing
rotor
housing
pin
disc
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Withdrawn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
EP89116595A
Other languages
German (de)
English (en)
Other versions
EP0359139A3 (fr
Inventor
Heinz Dr. Schippers
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0359139A2 publication Critical patent/EP0359139A2/fr
Publication of EP0359139A3 publication Critical patent/EP0359139A3/fr
Withdrawn legal-status Critical Current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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

Definitions

  • the invention relates to a vane pump according to the preamble of claim 1.
  • This vane pump is known from DE-PS 577 043. It is characterized by a large volume of work. The pump is not suitable for large pressure differences because of the poor sealing effect in the area of the wing guide.
  • this problem is solved in EP-A 264 778, in which the rotor is a completely filled circular-cylindrical drum which has a slot parallel to an axial plane for guiding the wing.
  • the wing is a rectangular disc that has the same thickness over its entire length and width. The thickness of the wing is adapted to the width of the slot. Therefore there are long sealing gaps between the suction and the pressure side of the pump with a correspondingly good sealing effect.
  • the problem of wear caused by centrifugal force is not solved with this pump.
  • the object of the invention is to provide a pump according to the preamble of claim 1 both with a large volume and low wear caused by centrifugal force and with a good sealing effect.
  • the embodiment according to claim 2 makes it possible to mount the rotor on one side and to arrange the crank on the side opposite the rotor bearing.
  • the vane pump 1 has a pump housing 2.
  • the pump rotor 5 is overhung and rotatably driven.
  • the storage is not shown here.
  • the rotor is mounted so that it touches the inner casing at one point with a narrow gap.
  • the rotor is a cylindrical drum.
  • the rotor is made from one piece, so it is solid and has only one slot. This slot is parallel to an axial plane. It is delimited by two parallel secant planes.
  • the drive shaft is - as shown in FIG. 4 in particular - formed on the rotor and forms a piece with it.
  • the wing is a rectangular plate or disk, which has the same thickness over its entire surface. The wing thickness corresponds to the width of the slot in such a way that the wing slides well, but on the other hand forms tight sealing gaps with the rotor slot.
  • the wing 7 has sealing strips 8 at each of its ends.
  • the sealing strips 8 serve to armor the wing head.
  • the sealing strips 8 can be movably guided in the wing end and thereby compensate for tolerances in the cross section of the pump housing.
  • the conchoid goes through the curvature center of the sealing strips 8.
  • the distance of the equidistant from the conchoid corresponds to the radius of curvature of the sealing strips 8.
  • the rotor 5 is mounted eccentrically with respect to the conchoid.
  • the conchoid has the property that all secants through the center of the rotor 5 are of the same length and as long as the distance between the centers of curvature of the sealing strips 8.
  • the clear width in The direction of the rotor slot 6 is constant at all rotational positions of the rotor 5 and is equal to the wing length between the contact lines of the housing 2 and the sealing strips 8.
  • Fig. 1 the English of the wing 7 is shown. In this position, the longitudinal center point 15.1 of the wing lies on the center of the rotor 5. The 90 ° position is also shown in broken lines.
  • the length of the wing 7 denotes the usually largest geometric dimension of the wing shown in FIG. 1.
  • the longitudinal center point 15.2 is extremely far off-center.
  • large centrifugal forces are exerted on the wing.
  • the housing can be designed so that a good seal of the suction and pressure side is achieved by touching the rotor and housing not only in a single surface line, but in a lubricating surface.
  • a circular crank disk 13 is freely rotatable (FIGS. 2 and 3). Its center 14 lies exactly between the extreme positions 15.1 and 15.2, which the longitudinal center of the wing 7 can assume.
  • a pin 10 is mounted axially parallel to the crank disk 13, namely on a radius which corresponds to the distance between the center 14 of the crank disk 13 and the extreme positions 15.1 and 15.2 of the longitudinal center of the wing 7.
  • the bearing cover 4 has suitable oil grooves 9 in the circular disk-shaped recess in which the crank disk 13 is mounted, so that a sliding bearing with lubrication of the crank disk 13 takes place.
  • the vane pump can thus act as a vacuum pump or as an air pressure pump (compressor). It is particularly advantageously used as a vacuum pump.
  • FIGS. 1 to 3 The embodiment of FIGS. 1 to 3 is characterized in that the pin 10 is fixed to the wing 7 and relative to the disc 13 relative is rotatable.
  • the pin 10 is rotatably connected to the disc 13. It can be pressed into a press fit, for example.
  • the pin 10 protrudes into a hole 16 in the wing.
  • the hole penetrates the entire width of the wing.
  • the width of the vane 7 denotes the geometric dimension shown in FIG. 4, which corresponds to the distance between the housing covers of the vane pump 1.
  • the pin 10 extends only to the middle of the width of the wing 7 and has a bearing 17 there in the form of a plain bearing.
  • the disc 13 is rotatably supported in ball bearings or other roller bearings 18. Otherwise, FIGS. 1 to 3 and the associated description also apply to the exemplary embodiment according to FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP89116595A 1988-09-10 1989-09-08 Pompe à palettes Withdrawn EP0359139A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3830911 1988-09-10
DE3830911 1988-09-10
DE3840613 1988-12-02
DE3840613 1988-12-02

Publications (2)

Publication Number Publication Date
EP0359139A2 true EP0359139A2 (fr) 1990-03-21
EP0359139A3 EP0359139A3 (fr) 1990-06-06

Family

ID=25872113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116595A Withdrawn EP0359139A3 (fr) 1988-09-10 1989-09-08 Pompe à palettes

Country Status (1)

Country Link
EP (1) EP0359139A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0841484A1 (fr) * 1996-11-05 1998-05-13 Sebastian Zunhammer Pompe rotative
EP0933532A3 (fr) * 1998-02-02 2000-09-20 Asuka Japan Co., Ltd. Machine rotative à fluide du type à pallettes
ITMI20090821A1 (it) * 2009-05-13 2010-11-14 O M P Officine Mazzocco Pagnoni S R L Pompa monopaletta
ITMI20101984A1 (it) * 2010-10-26 2012-04-27 O M P Officine Mazzocco Pagnoni S R L Pompa monopaletta

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR552920A (fr) * 1922-05-09 1923-05-09 Perfectionnements aux pompes à palettes
US2463360A (en) * 1944-11-02 1949-03-01 Joseph R Byrne Sliding vane pump
GB697078A (en) * 1952-04-30 1953-09-16 Robert Desmond Parker Improvements in or relating to rotary pumps
FR2189650A1 (fr) * 1972-06-19 1974-01-25 Agre Claude
EP0264778A2 (fr) * 1986-10-18 1988-04-27 B a r m a g AG Pompe à palettes
GB2197389A (en) * 1986-11-17 1988-05-18 Eagle Ind Co Ltd Rotary vane pumps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR552920A (fr) * 1922-05-09 1923-05-09 Perfectionnements aux pompes à palettes
US2463360A (en) * 1944-11-02 1949-03-01 Joseph R Byrne Sliding vane pump
GB697078A (en) * 1952-04-30 1953-09-16 Robert Desmond Parker Improvements in or relating to rotary pumps
FR2189650A1 (fr) * 1972-06-19 1974-01-25 Agre Claude
EP0264778A2 (fr) * 1986-10-18 1988-04-27 B a r m a g AG Pompe à palettes
GB2197389A (en) * 1986-11-17 1988-05-18 Eagle Ind Co Ltd Rotary vane pumps

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0841484A1 (fr) * 1996-11-05 1998-05-13 Sebastian Zunhammer Pompe rotative
EP0933532A3 (fr) * 1998-02-02 2000-09-20 Asuka Japan Co., Ltd. Machine rotative à fluide du type à pallettes
ITMI20090821A1 (it) * 2009-05-13 2010-11-14 O M P Officine Mazzocco Pagnoni S R L Pompa monopaletta
WO2010131103A3 (fr) * 2009-05-13 2011-03-17 O.M.P. Officine Mazzocco Pagnoni S.R.L. Pompe à une seule palette
ITMI20101984A1 (it) * 2010-10-26 2012-04-27 O M P Officine Mazzocco Pagnoni S R L Pompa monopaletta
WO2012056295A2 (fr) * 2010-10-26 2012-05-03 O.M.P. Officine Mazzocco Pagnoni S.R.L. Pompe à aube unique
WO2012056295A3 (fr) * 2010-10-26 2013-06-27 O.M.P. Officine Mazzocco Pagnoni S.R.L. Pompe à aube unique
CN103314216A (zh) * 2010-10-26 2013-09-18 O·M·P·奥菲奇内·马佐科·帕尼奥尼有限公司 单叶片泵
CN103314216B (zh) * 2010-10-26 2016-03-09 O·M·P·奥菲奇内·马佐科·帕尼奥尼有限公司 单叶片泵

Also Published As

Publication number Publication date
EP0359139A3 (fr) 1990-06-06

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