EP0284712A2 - Pompes à palettes - Google Patents

Pompes à palettes Download PDF

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Publication number
EP0284712A2
EP0284712A2 EP88100426A EP88100426A EP0284712A2 EP 0284712 A2 EP0284712 A2 EP 0284712A2 EP 88100426 A EP88100426 A EP 88100426A EP 88100426 A EP88100426 A EP 88100426A EP 0284712 A2 EP0284712 A2 EP 0284712A2
Authority
EP
European Patent Office
Prior art keywords
control
rotor
pump
sector
vane pump
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.)
Granted
Application number
EP88100426A
Other languages
German (de)
English (en)
Other versions
EP0284712B1 (fr
EP0284712A3 (en
Inventor
Richard Jurr
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO 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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0284712A2 publication Critical patent/EP0284712A2/fr
Publication of EP0284712A3 publication Critical patent/EP0284712A3/de
Application granted granted Critical
Publication of EP0284712B1 publication Critical patent/EP0284712B1/fr
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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/122—Arrangements for supercharging the working space
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/04—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for reversible pumps

Definitions

  • the invention relates to a vane pump with a rotor which can be driven in different directions of rotation for the optional generation of negative pressure or positive pressure at two pump connections, each of which has a connection to a pump chamber of a pump chamber delimited on the outside by a stroke curve.
  • Vane pumps of this type are generally known and used.
  • the invention has for its object to design a vane pump of the type mentioned in such a way that a better filling and thus a higher performance can be achieved with the least possible effort for both directions of rotation.
  • each pump connection has a further connection to the pump chamber in the region of larger cross section via a flow channel and in that a control device is provided for automatically closing the flow channel lying on the pressure side depending on the direction of rotation.
  • the control device can be designed very differently. It is particularly simple if it is formed by controlling in at least one side plate of the vane pump and through control openings leading into sector-shaped interiors between the blades of the rotor in at least one side surface of the rotor and if a control wedge is arranged in the sector-shaped interiors, whichever releases or covers control openings leading into the interior after the direction of rotation of the rotor.
  • the pressure supply for further connection into the pump chamber from a control kidney on one side of the rotor via a control opening into the sector-shaped interior and on the other side of the rotor through a further control opening out of it into one provided there Control kidney is done.
  • the vane pump shown in FIG. 1 has an eccentrically arranged rotor 2 which can be driven in two different directions of rotation and which divides a pump chamber 7 into four pump chambers 8, 9, 10, 11 with vanes 3, 4, 5, 6.
  • the vanes 3, 4, 5, 6 are held outwards against a stroke curve 12 by centrifugal force.
  • the vane pump has two conventional pump connections 13, 14. If the rotor 2 rotates counterclockwise, air is drawn in at the pump connection 13 and this is discharged compressed at the pump connection 14. It is important for the invention that a flow channel 15, 16 leading into the pump chamber 7 is provided above the pump connections 13, 14. When the rotor 2 rotates counterclockwise, the flow channel 15 is connected to the pump connection 13 in a manner still to be explained, while the flow channel 16 is separated from the pump connection 14. If the direction of rotation of the rotor 2 is reversed, the flow channel 16 is connected to the pump connection 14 and the flow channel 15 is separated from the connection 13.
  • FIG. 2 shows that in a side window 26 control kidneys 27, 28, 29, 30 are provided, which were also shown and positioned in FIG. 1.
  • air drawn in from a suction point 31 is first able to enter the control kidney 29, then through the control opening 23 into the rotor 2 and then through the control opening 22 out of the control kidney 30 into the control kidney 30.
  • a channel 32 leads to the flow channel 15.
  • the pump connection 13 has a connection to the suction point 31 directly via a channel 33.
  • control kidneys 27, 28 have no connection to one another through the rotor 2, since the control openings 24b, 25b shown in FIG. 1 are covered by the corresponding control wedge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)
EP88100426A 1987-04-03 1988-01-14 Pompes à palettes Expired - Lifetime EP0284712B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3711339 1987-04-03
DE19873711339 DE3711339A1 (de) 1987-04-03 1987-04-03 Fluegelzellenpumpe

Publications (3)

Publication Number Publication Date
EP0284712A2 true EP0284712A2 (fr) 1988-10-05
EP0284712A3 EP0284712A3 (en) 1989-06-14
EP0284712B1 EP0284712B1 (fr) 1991-01-16

Family

ID=6324842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100426A Expired - Lifetime EP0284712B1 (fr) 1987-04-03 1988-01-14 Pompes à palettes

Country Status (2)

Country Link
EP (1) EP0284712B1 (fr)
DE (2) DE3711339A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993002290A1 (fr) * 1991-07-16 1993-02-04 Rotocold Holdings Limited Compresseurs a gaz rotatifs a palettes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463155A (en) * 1944-04-10 1949-03-01 Bailey P Dawes Rotary engine
US4577472A (en) * 1985-02-25 1986-03-25 Carrier Corporation Reversible rotating vane rotary compressor having a movable supplemental suction port

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993002290A1 (fr) * 1991-07-16 1993-02-04 Rotocold Holdings Limited Compresseurs a gaz rotatifs a palettes
US5405253A (en) * 1991-07-16 1995-04-11 Rotocold Holdings Limited Rotary vane gas compressors

Also Published As

Publication number Publication date
EP0284712B1 (fr) 1991-01-16
EP0284712A3 (en) 1989-06-14
DE3861530D1 (en) 1991-02-21
DE3711339A1 (de) 1988-10-20

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