EP0245539A2 - Dispositif avec une pompe à palettes - Google Patents

Dispositif avec une pompe à palettes Download PDF

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Publication number
EP0245539A2
EP0245539A2 EP86116749A EP86116749A EP0245539A2 EP 0245539 A2 EP0245539 A2 EP 0245539A2 EP 86116749 A EP86116749 A EP 86116749A EP 86116749 A EP86116749 A EP 86116749A EP 0245539 A2 EP0245539 A2 EP 0245539A2
Authority
EP
European Patent Office
Prior art keywords
chamber
rotor
medium
rotation
wall
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Withdrawn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
EP86116749A
Other languages
German (de)
English (en)
Other versions
EP0245539A3 (fr
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 EP0245539A2 publication Critical patent/EP0245539A2/fr
Publication of EP0245539A3 publication Critical patent/EP0245539A3/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Withdrawn legal-status Critical Current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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
    • 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
    • F04C2/3446—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 more than one line or surface

Definitions

  • the invention relates to a device with a vane pump, which has a rotor eccentrically mounted in a housing to form a chamber, which contains recesses in which vanes interacting with the inner wall of the housing are arranged radially displaceable, two in the wall of the chamber Passages are provided for connection to at least one consumer and to a room containing a medium to be conveyed.
  • Vane pumps of the construction described above which are also called vane pumps, are often used for over- or. Vacuum generation used in motor vehicles to supply and operate central locking systems, child safety devices or locking aids to the required extent with pressure or vacuum.
  • the individual consumers that can be actuated with pressure or vacuum are connected to the vane pump via lines.
  • the invention is based on the object of further developing a device of the type described in the introduction, that it is optionally suitable for generating positive and negative pressure and at the same time a control pressure which is made available as positive pressure.
  • the rotor forms a second chamber with the housing, in the wall of which two passages are provided, each via a first and a second check valve on the one hand with a common space for the medium to be conveyed and on the other hand with a common one Channel for the control pressure are connected and that the rotor is optionally driven in opposite directions of rotation.
  • an overpressure occurs at one or the other passage of the first chamber.
  • a corresponding negative pressure then prevails at the second passage of the first chamber.
  • the control pressure is created as overpressure in the common channel.
  • the control pressure can be used for various control elements of a motor vehicle.
  • the device explained above can be used for consumers that are operated only with positive pressure or only with negative pressure.
  • the consumers must be connected to the passage of the first chamber where the desired type of pressure occurs, coordinating the direction of rotation of the rotor.
  • the type of actuation of the consumer depends on the direction of rotation of the rotor.
  • the device described above can thus be used in many ways. The wide range of uses results in higher quantities, so that economical production is also guaranteed.
  • the check valves are so in the lines between the room with the medium to be pumped and the channel for the Control pressure arranged that they block in the direction of the space for the medium to be conveyed.
  • the medium to be pumped can be a liquid, eg oil, which is in a tank. With a liquid, a pressure or vacuum sufficient for the actuation of consumers to be controlled can be generated relatively quickly, ie with a few revolutions of the rotor.
  • the device is therefore particularly suitable for generating pressure or vacuum using liquids.
  • the second chamber preferably has a smaller volume than the first chamber.
  • the second chamber is only required for the generation of the control pressure with which no large-volume parts are moved. Therefore, a relatively small second chamber is also sufficient for the generation of a high control pressure.
  • a relatively large volume of the first chamber r is thus available for conveying the medium from or to the consumers, so that despite the second chamber, a large volume of the medium can be conveyed with a corresponding overpressure or underpressure.
  • a further passage is provided in the wall of the first chamber and is connected to the channel for the control pressure via a check valve which is permeable in the direction of the chamber.
  • the two chambers each have subspaces with crescent-shaped cross sections with respect to a plane of symmetry. This has a favorable effect on the stress of the vanes which are displaced against the housing wall under centrifugal force.
  • a device for selectively generating a negative or positive pressure and a control pressure contains a vane pump (10) which has a housing (12) in which a rotor (14) which can be driven by a motor (not shown in detail) is rotatably mounted.
  • a vane pump 10 which has a housing (12) in which a rotor (14) which can be driven by a motor (not shown in detail) is rotatably mounted.
  • the housing (12) there is a cylindrical cavity with a larger cross section than the cross section of the rotor (14).
  • the rotor (14) is arranged eccentrically to this cavity, which forms a first chamber (16).
  • a plane of symmetry (18) which runs through the longitudinal axes (not shown) of the chamber (16) and the rotor (14), divides the chamber (16) into two subspaces (20, 22) that are crescent-shaped.
  • the subspaces (20, 22) each contain a passage (24, 26) for connection to consumers (not shown) or to the space of a medium to be conveyed.
  • consumers are connected to the passage (26) via a pipe (28), while the passage (24) is connected to the space for the medium to be conveyed via a pipe (30).
  • the medium to be pumped can be a gas, for example air.
  • the medium is preferably a liquid, for example oil. This liquid is located in a tank (not shown in more detail) which is at atmospheric air pressure and to which the pipeline (30) runs, the end of which is not shown and which dips into the liquid level in all operating positions of the consumers.
  • a second cavity in the housing (12) which is cylindrical and partially overlaps with the first cavity.
  • the rotor (14) is also arranged eccentrically to this cavity, which is not described in any more detail and has a larger diameter than the rotor (14).
  • a second chamber (32) is formed, which is enclosed by the inner wall of the housing (12), the outside of the rotor (14) and the end walls of the vane pump (10), not shown.
  • the chamber (32) like the chamber (16), has two subspaces (34, 36) with respect to the plane of symmetry (18). Each subspace (34, 36) contains a passage (38) or (40).
  • the rotor (14) contains radially extending recesses (42) which are arranged at equal distances from one another. Wings (44) are mounted radially displaceably in the cutouts (42). The blades (44) come into contact or interaction with the rotation of the rotor (14) with the inner wall of the housing (12), with their ends sliding along the inner wall and forming separate compartments into which during the rotation of the Rotors (14) the medium to be conveyed is sucked in and then pressurized. The pressurized medium is discharged through a passage.
  • the passages (38) and (40) are each connected via pipes (46, 48) to further pipes (50, 52).
  • the pipes (46, 48) open into the longitudinal walls of the pipes (50, 52).
  • Each pipe (50, 52) is on Both ends are each connected to a check valve (54, 56) or (58, 60).
  • the check valves (54) and (58) open in the direction of connecting the pipes (46) and (48) and block in the opposite direction.
  • the check valves (56) and (60) block in the direction of the connection of the pipes (46) and (48) and open in the opposite direction.
  • the check valves (54) and (58) are each connected together with a pipe (62) which projects at one end into the tank, not shown, in which the medium to be funded.
  • the check valves (56) and (60) are connected at their connections facing away from the pipes (50, 52) to a common channel (64) which is intended for the transmission of a control pressure.
  • the rotor (14) can optionally be driven with the motor in two opposite directions of rotation. In Fig. 1 arrows indicate the two opposite directions of rotation (66, 68).
  • the medium When the rotor (14) rotates in the direction of rotation (66), the medium is sucked in via the pipe (30) and the passage (24), compressed in the chamber (16) and under pressure through the passage (26) into the pipe (28) to which the consumers are connected. A negative pressure occurs at the passage (24).
  • the consumers for example central locking devices, locking aids and similar devices in motor vehicles, are actuated in such a way that they assume a certain operating position or pass into this operating position.
  • the medium is compressed in the subspace (36) and passes under pressure through the passage (40) and the pipes (48, 52) to the check valves (58, 60). While the check valve (58) blocks, the check valve (60) opens and clears the way for the medium under pressure to the channel (64). Regardless of the direction of rotation of the rotor (14), a control pressure is therefore always generated in the channel (64) as overpressure k, so that the control elements working only with overpressure can be actuated. If necessary, the channel (64) and the control elements connected to it, for example pressure-consuming parts which belong to the control elements or can form them, and channels which are not shown connected to the tank so that the control pressure is reduced by itself when the rotor (14) is at a standstill.
  • the pressure can be reduced immediately by reversing the direction of rotation of the rotor (14). This reversal is e.g. automatically specified for a short period of time. This means that the system is ready to be operated again after a short time.
  • the chamber (16) of the vane pump (10) is connected via a line (70) to a check valve (72) which is connected to the channel (64) via a further line (74) .
  • the check valve (72) is arranged to block in the direction of the channel (64).
  • the channel (64) for the control pressure is expediently connected to actuating elements of a central locking system of a motor vehicle.
  • the actuators require overpressure to switch them on and off.
  • the passage (26) of the first chamber (16) intended for consumers is preferably connected to the seals of a sealing system in a motor vehicle.
  • the seals can be pressurized to e.g. to seal windows or doors of the motor vehicle well while driving and to exert a certain holding force on them.
  • the holding force is particularly important for motor vehicle doors that have a certain type of frame for the panes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP86116749A 1986-05-13 1986-12-02 Dispositif avec une pompe à palettes Withdrawn EP0245539A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863615983 DE3615983A1 (de) 1986-05-13 1986-05-13 Vorrichtung mit einer fluegelzellenpumpe
DE3615983 1986-05-13

Publications (2)

Publication Number Publication Date
EP0245539A2 true EP0245539A2 (fr) 1987-11-19
EP0245539A3 EP0245539A3 (fr) 1988-03-23

Family

ID=6300663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116749A Withdrawn EP0245539A3 (fr) 1986-05-13 1986-12-02 Dispositif avec une pompe à palettes

Country Status (3)

Country Link
EP (1) EP0245539A3 (fr)
JP (1) JPS62267586A (fr)
DE (1) DE3615983A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257065B4 (de) * 2001-12-27 2016-06-02 Magna Powertrain Hückeswagen GmbH Kompressor
DE102005038204A1 (de) * 2005-08-12 2007-02-15 Dr.Ing.H.C. F. Porsche Ag Einrichtung zur Steuerung der Schmierölversorgung für Antriebsaggregate

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2234426A (en) * 1938-07-05 1941-03-11 Ternstedt Mfg Co Control panel and power control for vehicle door instrumentalities
US2847937A (en) * 1954-09-14 1958-08-19 Gen Motors Corp Actuator mechanism
US3044823A (en) * 1956-04-11 1962-07-17 Trico Products Corp Vehicle window control system
US3112709A (en) * 1961-07-14 1963-12-03 Coal Industry Patents Ltd Vaned pumps and motors
JPS575592A (en) * 1980-06-12 1982-01-12 Daikin Ind Ltd Multivane compressor
DE3240523A1 (de) * 1982-11-03 1984-05-03 Robert Bosch Gmbh, 7000 Stuttgart Fluegelzellenverdichter
DE3430353A1 (de) * 1983-08-20 1985-03-07 Mitsubishi Denki K.K., Tokio/Tokyo Fluegelzellenpumpe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2234426A (en) * 1938-07-05 1941-03-11 Ternstedt Mfg Co Control panel and power control for vehicle door instrumentalities
US2847937A (en) * 1954-09-14 1958-08-19 Gen Motors Corp Actuator mechanism
US3044823A (en) * 1956-04-11 1962-07-17 Trico Products Corp Vehicle window control system
US3112709A (en) * 1961-07-14 1963-12-03 Coal Industry Patents Ltd Vaned pumps and motors
JPS575592A (en) * 1980-06-12 1982-01-12 Daikin Ind Ltd Multivane compressor
DE3240523A1 (de) * 1982-11-03 1984-05-03 Robert Bosch Gmbh, 7000 Stuttgart Fluegelzellenverdichter
DE3430353A1 (de) * 1983-08-20 1985-03-07 Mitsubishi Denki K.K., Tokio/Tokyo Fluegelzellenpumpe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 65 (M-124)[943], 24. April 1982; & JP-A-57 005 592 (DAIKIN KOGYO K.K.) 12-01-1982 *

Also Published As

Publication number Publication date
JPS62267586A (ja) 1987-11-20
EP0245539A3 (fr) 1988-03-23
DE3615983A1 (de) 1987-11-19

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