EP3034779B1 - Pompe à vide de véhicule automobile - Google Patents

Pompe à vide de véhicule automobile Download PDF

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Publication number
EP3034779B1
EP3034779B1 EP14198815.4A EP14198815A EP3034779B1 EP 3034779 B1 EP3034779 B1 EP 3034779B1 EP 14198815 A EP14198815 A EP 14198815A EP 3034779 B1 EP3034779 B1 EP 3034779B1
Authority
EP
European Patent Office
Prior art keywords
base body
vacuum pump
rotor
rotor base
fluid chamber
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.)
Active
Application number
EP14198815.4A
Other languages
German (de)
English (en)
Other versions
EP3034779A1 (fr
Inventor
Steffen Schnurr
Karl-Heinz Kirberg
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.)
Pierburg Pump Technology GmbH
Original Assignee
Pierburg Pump Technology GmbH
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 Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Priority to EP14198815.4A priority Critical patent/EP3034779B1/fr
Priority to PCT/EP2015/076856 priority patent/WO2016096288A1/fr
Publication of EP3034779A1 publication Critical patent/EP3034779A1/fr
Application granted granted Critical
Publication of EP3034779B1 publication Critical patent/EP3034779B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F01C21/08—Rotary pistons
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/21—Manufacture essentially without removing material by casting
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/10—Voltage

Definitions

  • the invention relates to a vacuum pump, in particular a rotary vane or vane pump, for a motor vehicle according to the preamble of claim 1.
  • the invention relates to a vacuum pump with an integrally formed and driven by a motor rotor body.
  • the rotor base body has at least one axial bearing portion and an axial slide portion.
  • In the bearing section of the rotor base body is rotatably mounted for example via a sliding bearing on a pump housing of the vacuum pump.
  • In the slide portion of the rotor base body may have at least one slot or a slot-shaped recess in which a movable, in particular radially displaceable, mounted rotary valve or rotor blades is arranged in the rotor base body.
  • the rotor base body is arranged in the pump housing such that the rotary valve for conveying a medium is in operative connection with an inner wall of the pump housing.
  • the rotary valve is designed as a planar body and slides with at least one side facing away from the rotor base body on an inner wall of the pump housing along.
  • the rotor base body has a bearing body and at least one rotor blade element movably mounted in the rotor base body.
  • a Receiving member provided, wherein the receiving member for receiving a coupling member is formed as a recess in the rotor body.
  • the rotor base body is formed as a hollow body, wherein the hollow body is divided by the rotor blade element into two separate fluid chambers.
  • a vacuum pump with a relatively thick-walled rotor is known.
  • a cavity formed in the rotor is divided by the slider into two separate fluid chambers, which are fluidically interconnected for pressure equalization via a pump delivery chamber.
  • the rotor body can be relatively expensive due to its at least partially solid or relatively thick-walled construction in the production and operation.
  • the rotor base body is relatively expensive, in particular due to an increased use of material and a subsequent machining.
  • the relatively large moment of inertia of the rotor main body can lead to an increased power consumption.
  • the heat generated by friction can be derived only limited.
  • the relatively large weight of a rotor in vacuum pumps, which is intended for use in a motor vehicle often undesirable.
  • the invention is therefore based on the object to improve a vacuum pump for motor vehicles to the effect that the vacuum pump with at least constant stability has a lower weight and is relatively inexpensive to manufacture.
  • the rotor base body of the vacuum pump is designed, at least in the slide section, as a hollow body which is open at the end and has a single fluid chamber.
  • the single fluid chamber extends both axially and radially over a very large part of the rotor base body and is in particular cylindrical in the axial direction, so that a particularly effective weight reduction is made possible.
  • the fluid chamber may be open at the end face, preferably on an end face of the rotor base body facing away from the bearing section, so that the rotor base body can be designed as a thin-walled, drum or cup-shaped hollow body is formed.
  • Thin-walled in this context means that the rotor base body at least in sections has a peripheral wall which corresponds approximately to one-tenth of the corresponding diameter of the rotor base body.
  • the frontal opening of the fluid chamber may be closed by a closure cap.
  • the fluid chamber may comprise a plurality of different sized cavities corresponding to the contour of the rotor body, wherein all cavities are fluidly interconnected. This applies in particular to the assembled state of the vacuum pump, in which the rotary valve is arranged in the rotor base body.
  • the cavities may in particular be connected to one another on a side facing the bearing section, so that a fluid flow can take place between the cavities of the fluid chamber.
  • a pressure and temperature compensation for both in the axial direction and in the circumferential direction homogeneously formed fluid within the fluid chamber allows. Consequently, a rotor body is provided which has a relatively high strength and a particularly low weight for efficient operation of the vacuum pump and also - not least due to the reduced use of material - is relatively inexpensive to manufacture.
  • the rotor base body has at least one stiffening rib on an inner wall facing the fluid chamber.
  • the stiffening rib serves to improve the stiffness of the rotor body and in particular for the derivation and uniform distribution of forces acting on the rotor body and / or temperatures.
  • relatively large fluid chamber can be relieved by means of the stiffening rib certain areas in which can cause a force to local stress concentrations.
  • the stiffening rib can be arranged in the circumferential walls of the rotor base body, which are arranged laterally to the rotary slide and designed as so-called half shells, in order to distribute or transfer the forces introduced in this area in a relatively simple manner to the entire rotor base body.
  • the wall thickness of the rotor base body can be designed to be relatively thin while retaining the same dimensional stability.
  • the stiffening rib causes an enlargement of the inner surface of the rotor base body and thus can also serve to dissipate heat from the rotor base body to a fluid in the fluid chamber, for example air or oil.
  • the stiffening rib acts in this case as a cooling fin.
  • the rotor body also allows the rotor body to be improved in its stability. Consequently, with constant or even increased stability of the rotor body, the use of material and thereby the manufacturing and operating costs of the vacuum pump can be significantly reduced. Furthermore, the geometry of the rotor base body or of the fluid chamber is made possible by the arrangement of a stiffening rib, which can be relatively complex and can be adapted to the respective requirements.
  • the rotor base body is also formed in the bearing portion as a hollow body open in the direction of the slide portion, so that the single fluid chamber extends into the bearing portion.
  • the rotor base body of the vacuum pump in the slide portion and at least partially in the bearing portion is formed as a frontally open hollow body with a single fluid chamber.
  • the stiffening rib extends at least partially over the bearing portion and / or the slider portion.
  • the stiffening rib in its longitudinal extent, that is arranged in the axial direction of the rotor body, perpendicular to a direction of displacement of the rotary valve.
  • the displacement direction is in particular in a ground plane of the rotary valve, which is arranged parallel to a flat side of the rotary valve.
  • the stiffening ribs can be arranged with respect to the direction of displacement of the rotary valve at an angle between 40 and 90 degrees.
  • the stiffening rib is arranged between at least one end wall facing the fluid chamber and at least one circumferential wall, in particular between an end wall arranged in the bearing section and a peripheral wall arranged in the slide section.
  • the stiffening rib can extend axially over at least one shoulder formed within the hollow body, in particular one running circumferentially between the bearing section and the slider section radially inward protruding paragraph.
  • the stiffening rib projects radially from a peripheral wall facing the fluid chamber in the direction of a rotor center axis of the rotor base body.
  • the stiffening rib protrudes perpendicularly from a base region, in the present case from the circumferential wall, into the interior of the fluid chamber.
  • the stiffening rib has a height with which the stiffening rib protrudes from a circumferential wall facing the fluid chamber, wherein the height respectively, ie in particular over a defined axial section, corresponds to a maximum of half an inner radius of the rotor base body.
  • the cavities of the fluid chamber can be connected to one another in a region between the mutually opposite end faces of the stiffening ribs, in particular in the case of the formation of two stiffening ribs arranged symmetrically opposite one another or to the rotor center axis. This is particularly advantageous in the bearing section for pressure and temperature compensation.
  • the stiffening rib can be designed to be straight or curved in the axial or radial direction.
  • the stiffening rib can basically have a constant height and / or a constant width.
  • the stiffening rib in particular an increasing in the axial or radial direction height and / or width. Consequently, the stiffening rib may be formed differently high and / or wide.
  • the stiffening rib may have a shape corresponding to the forces occurring in a certain area.
  • the two-dimensional side walls, the two end faces and the top of the stiffening rib opposite the base region of the stiffening rib may in principle be designed to be straight or curved.
  • the stiffening rib has a width which increases in the radial direction.
  • the stiffening rib may be V-shaped with respect to its width, wherein the wider-shaped rib portion is preferably disposed in the bearing portion and the narrower rib portion in the slider portion.
  • the stiffening rib has a first side wall, which is rectilinear in the longitudinal extent of the stiffening rib, and a second flat side wall formed opposite the first side wall, which is bent in the longitudinal extent of the stiffening rib, in particular concavely bent.
  • the stiffening rib has a height which decreases in the axial direction to the value zero.
  • the stiffening rib may have a curved shape at the top or top edge opposite the base region of the stiffening rib, via which the first and the second side wall are connected to one another.
  • the top is convexly curved.
  • the front side of the stiffening rib may have a curved shape.
  • the rotor base body has at least two stiffening ribs, wherein the stiffening ribs are formed symmetrically with respect to a rotor center axis of the rotor base body.
  • the rotor base body can have a particularly high stability and an imbalance of the rotor base body can be avoided.
  • the rotor base body and / or the stiffening rib are made of cast iron or cast steel.
  • the rotor base body and / or the stiffening rib are made of cast iron or cast steel.
  • the rotor base body and / or the stiffening rib are produced in a casting process.
  • the rotor is cast together with the at least one stiffening rib as a single piece.
  • the resulting blank may be geometrically very close to the finished part.
  • the internal geometry of the fluid chamber can remain unprocessed.
  • the outer geometry of the blank can ideally reach the dimensions of the finished part down to a few hundredths of a millimeter. The production in the casting process thus reduces the use of materials almost on the finished part and leads to a significant reduction in manufacturing costs.
  • the fluid chamber extends into a coupling element projecting axially on the rotor base body for a positive connection with a drive-side receiving element.
  • the coupling element is usually arranged on a side facing away from the slide portion end face and may be formed as a two-face. Due to the design of the extending into the coupling element fluid chamber, the weight of the rotor body can be further reduced.
  • FIG. 1 shows a perspective view of a vacuum pump 1 according to the invention with a pump housing 3 and a rotor body 2 arranged therein.
  • the rotor base body 2 is in a in the FIG. 1 not shown axial bearing portion 21 rotatably supported via a likewise not shown bearing 6 on the pump housing 3.
  • the integrally formed rotor base body 2 is formed as a hollow body 20 with a single continuous fluid chamber 24.
  • the fluid chamber 24 is peripherally surrounded by a peripheral wall 26 and the front side of a shoulder 27 and at a base portion of a front side 25.
  • At the front side 25 opposite end of the rotor body 2 is open and can be closed here by means of a closure lid, not shown.
  • a slot 28 is provided on the peripheral wall 26, in particular in an axial slide portion 22, in which a rotary valve 4 is arranged to be movable.
  • the rotary valve 4 is displaceably mounted in particular in the rotor base body 2 in a displacement direction V.
  • the rotary valve 4 is to build up a vacuum in a known manner with a housing inner wall part 31 of the pump housing 3 in operative connection. It should be clear that the rotor body 2 can accommodate other rotary valve in other designs of pumps.
  • FIGS. 2a and 2b In each case a first embodiment of a rotor base body 2 of a vacuum pump 1 according to the invention is shown in an end view and a sectional side view.
  • the rotor base body 2 has a bearing section 21 and a slide section 22.
  • the rotor base body 2 has a single fluid chamber 24 and is designed as a thin-walled hollow body 20 formed, wherein the wall thicknesses in the axial direction and in the circumferential direction of the rotor base body 2 vary.
  • the rotary valve slot 28 in which a in the FIGS. 2a and 2b not shown rotary valve 4 is slidably disposed serves an increased wall thickness for sealing the fluid chamber 24 relative to the environment of the rotor base body second
  • the fluid chamber 24 extends axially from the bearing portion 21 over the entire slide portion 22 to a bearing portion 21 facing away from the end face of the rotor body 2, on which the fluid chamber 24 is open, so that the rotor body 2 is in particular drum-shaped.
  • the rotor body 2 is a in the FIG. 2b exemplified ball bearing 6 rotatably mounted on the pump housing 3.
  • stiffening ribs 5 are arranged on an inner circumferential wall 26 of the rotor base body 2.
  • the stiffening ribs 5 are used for power transmission or distribution of the between the slots 28 respectively formed peripheral wall 26 in the direction of an end wall 25 of the rotor body 2 and vice versa.
  • the stiffening ribs 5 are respectively in the slider portion 22 and the bearing portion 21 in a transverse direction perpendicular from the peripheral wall 26, that is radially in the direction of a rotor center axis M of the rotor body 2, with a height H in the fluid chamber 24 forth.
  • the height H of the stiffening ribs 5 varies in the axial direction, in particular, the height H increases at a constant permanent inner radius Ri1.
  • the stiffening ribs 5 at least in a part of the slide portion 22 in the direction of the bearing portion 21 uniformly increasing height H1.
  • the stiffening rib 5 may have a shape corresponding to the forces occurring in a certain area.
  • the stiffening rib 5 has a constant height H2 which corresponds to half of the inner radius Ri2 of the rotor main body 2.
  • the fluid chamber 24 is formed in the bearing portion 21 at least partially in the circumferential direction continuously.
  • the stiffening ribs 5 for power transmission are each connected to the front side wall 25 of the rotor base body 2.
  • an outwardly projecting coupling element 23 is provided on a drive-side end side wall of the bearing portion 21, on a drive-side end side wall of the bearing portion 21, an outwardly projecting coupling element 23 is provided.
  • a pin-shaped coupling element 23 of the rotor body 2 in a simple manner, for example, with a drive shaft, not shown, connectable.
  • FIGS. 3a and 3b in each case a second embodiment of a rotor base body 2 of a vacuum pump 1 according to the invention is shown in an end view and a sectional side view.
  • the rotor body 2 of this embodiment is the in the FIGS. 2a and 2b shown rotor base body 2 very similar and modified only within the fluid chamber 24.
  • the rotor main body 2 in turn has a bearing portion 21 and a slide portion 22 in which a in the FIGS. 3a and 3b not shown rotary valve 4 is arranged.
  • the rotor main body 2 has a single fluid chamber 24, which in turn extends from the bearing section 21 over the entire slide region 22 and is open at the end, so that the rotor main body 2 is formed as a thin-walled cup-shaped hollow body 20.
  • stiffening ribs 5 serve for a power dissipation, in particular a torsional force, from the circumferential wall 26 in the direction of an end wall 25 of the rotor main body 2.
  • the stiffening ribs 5 project respectively in the slide portion 22 and the bearing portion 21 with a height H from the peripheral wall 26 in the direction of the fluid chamber 24.
  • the height H of the stiffening ribs 5 varies in the axial direction, in particular, the stiffening ribs 5 at least in a part of the slide portion 22 in the direction of the bearing portion 21 always lower increasing height H, so that an upper edge of the stiffening rib 5 has a curved, in particular convexly curved, shape.
  • the stiffening rib 5 in the axial direction has a constant height H, which corresponds to a maximum of half of the inner radius Ri of the rotor base body 2, so that the fluid chamber 24 is formed continuously in the bearing portion 21 in the circumferential direction.
  • the stiffening rib 5 has a width B increasing in the slide portion 22 in the direction of the bearing portion 21.
  • the stiffening rib 5 has a slot 28 facing away from the first flat side wall which is straight in the axial and radial extent of the stiffening rib 5, and one of the first side wall opposite second flat side wall, which is bent in the radial extent of the stiffening rib 5 in particular concave.
  • the stiffening ribs 5 in the bearing section 21 are each connected to the front side wall 25 of the rotor base body 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Claims (13)

  1. Pompe à vide (1) pour véhicule automobile, avec
    un corps de base de rotor (2) formé d'un seul tenant et apte à être entrainé par un moteur, ledit corps comprenant au moins une section axiale de support (21) et une section axiale de palette (22), dans laquelle
    dans la section de support (21), le corps de base du rotor (2) est supporté rotatif sur un carter de pompe (3),
    et, dans la section de palette (22), au moins une palette tournante (4) est disposée dans le corps de base du rotor (2), ladite palette étant supportée de façon qu'elle soit radialement déplaçable et étant en liaison active avec le boitier de pompe (3),
    caractérisée en ce
    qu'au moins dans la section de palette (22), le corps de base du rotor (2) est réalisé sous forme d'un corps creux (20), ouvert du côté frontal, qui comprend une seule chambre à fluide (24), le corps comprenant au moins une nervure raidisseuse (5) sur la paroi interne (25, 26) tourné vers la chambre à fluide (24).
  2. Pompe à vide (1) selon la revendication 1, caractérisée en ce que, dans la section de support (21), le corps de base du rotor (2) est réalisé sous forme d'un corps creux (20), ouvert du côté frontal.
  3. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) s'étend au moins partiellement sur la section de support (21) et/ou la section de palette (22).
  4. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) est disposée, dans la direction axiale, perpendiculairement à une direction de déplacement (V) de la palette tournante (4).
  5. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) est disposée entre au moins une paroi frontale (25) tournée vers la chambre à fluide (24) et au moins une paroi circonférentielle (26).
  6. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) s'étend dans la direction axiale sur au moins un épaulement (27) circonférentiel formé dans le corps creux (20).
  7. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) saille radialement vers un axe central (M) du rotor du corps de base du rotor (2) à partir d'une paroi circonférentielle (26) tournée vers la chambre à fluide (24).
  8. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) a une hauteur (H) par laquelle la nervure raidisseuse (5) saille d'une paroi circonférentielle (26) tournée vers la chambre à fluide (24), ladite hauteur (H) respectivement correspondant au plus à la moitié d'un rayon interne (Ri) du corps de base du rotor (2).
  9. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la nervure raidisseuse (5) a une hauteur (H) croissanté et/ou une largeur (B) croissante dans la direction axiale et/ou radiale.
  10. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de base du rotor (2) comprend au moins deux nervures raidisseuses (5) formées de manière symétrique par rapport à un axe central (M) du rotor du corps de base du rotor (2).
  11. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de base du rotor (2) et/ou la nervure raidisseuse (5) sont en fonte.
  12. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le corps de base du rotor (2) et/ou la nervure raidisseuse (5) sont fabriqués par un procédé de moulage.
  13. Pompe à vide (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la chambre à fluide (24) s'étend jusque dans un élément de couplage (23) saillant axialement du corps de base du rotor (2) pour un assemblage par forme avec un élément récepteur, côté d'entrainement.
EP14198815.4A 2014-12-18 2014-12-18 Pompe à vide de véhicule automobile Active EP3034779B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14198815.4A EP3034779B1 (fr) 2014-12-18 2014-12-18 Pompe à vide de véhicule automobile
PCT/EP2015/076856 WO2016096288A1 (fr) 2014-12-18 2015-11-17 Pompe a vide de véhicule automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14198815.4A EP3034779B1 (fr) 2014-12-18 2014-12-18 Pompe à vide de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3034779A1 EP3034779A1 (fr) 2016-06-22
EP3034779B1 true EP3034779B1 (fr) 2018-02-14

Family

ID=52144448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14198815.4A Active EP3034779B1 (fr) 2014-12-18 2014-12-18 Pompe à vide de véhicule automobile

Country Status (2)

Country Link
EP (1) EP3034779B1 (fr)
WO (1) WO2016096288A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10774647B2 (en) * 2017-06-27 2020-09-15 Torad Engineering Llc Rotor with sliding vane has a different width of vane slot extended from the longitudinal axis to the outer surface of the rotor body

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703499C2 (de) * 1997-01-31 2002-10-17 Pierburg Ag Drehkolbenpumpe
EP1361365B1 (fr) 1998-09-30 2005-08-10 Luk Automobiltechnik GmbH & Co. KG Pompe à vide et rotor en matière plastique
JP2004263690A (ja) * 2003-02-13 2004-09-24 Aisan Ind Co Ltd ベーン式バキュームポンプ
DE102008054240A1 (de) * 2007-11-13 2009-07-30 Ixetic Hückeswagen Gmbh Rotor für eine Pumpe
EP2746532B1 (fr) 2012-12-19 2018-02-14 Pierburg Pump Technology GmbH Agencement de rotor pour une pompe à vide ainsi que la pompe à vide dotée d'un tel agencement de rotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3034779A1 (fr) 2016-06-22
WO2016096288A1 (fr) 2016-06-23

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