EP1631745B1 - Pompe à cellules en ailettes à pot en tôle d'acier emboutie - Google Patents

Pompe à cellules en ailettes à pot en tôle d'acier emboutie Download PDF

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Publication number
EP1631745B1
EP1631745B1 EP04733242A EP04733242A EP1631745B1 EP 1631745 B1 EP1631745 B1 EP 1631745B1 EP 04733242 A EP04733242 A EP 04733242A EP 04733242 A EP04733242 A EP 04733242A EP 1631745 B1 EP1631745 B1 EP 1631745B1
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EP
European Patent Office
Prior art keywords
pump according
sheet metal
pump
pot
pressure
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.)
Expired - Lifetime
Application number
EP04733242A
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German (de)
English (en)
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EP1631745A1 (fr
Inventor
Heiko Schulz-Andres
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.)
Magna Powertrain Hueckeswagen GmbH
Original Assignee
Ixetic Hueckeswagen GmbH
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Publication of EP1631745A1 publication Critical patent/EP1631745A1/fr
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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
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • 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
    • 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
    • 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
    • F04C2230/24—Manufacture essentially without removing material by extrusion
    • 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
    • F04C2240/30—Casings or housings

Definitions

  • the invention relates to a pump, for example for conveying lubricating oil of an internal combustion engine, in particular a multi-stroke vane pump, wherein the rotation group comprises a rotor with at least radially movable vanes, a Hubkontur on which the wings with their wing heads sealingly slide along, and two axial side covers, as has side plates or housing walls.
  • Such pumps are known. They have in their side plates axial inlet openings and outlet openings, which must be separated according to their pressure ranges, for example by sealing means or the like and therefore cause a large axial length in such vane pumps. Also, the components of the known rotation groups, such as. As side plates made of sintered steel and contour rings made of solid steel or sintered steel, according to thick-walled and thus require both a large radial and axial space.
  • Such a vane pump is disclosed, for example, in Japanese Laid-Open Publication JP57097091 shown.
  • the pump housing parts are made of die-cast and have integrated side plate contours in the housing parts.
  • the contour ring itself is integrated in a disk-shaped die-cast housing part.
  • the publication DE19913632A describes a liquid ring pump whose housing consists of a deep-drawn sheet steel. However, an additional side plate 6 is inserted within the housing.
  • the publication FR-A-2660221 discloses a pump in which the stroke contour and a first axial side plate are represented by a steel sheet pot 6.
  • the pump housing has a simple cylindrical contour and not the special contour necessary especially for a double-stroke vane pump.
  • the sheet metal housing 6 itself is sealed on its open side by a flange 7, which obviously consists of cast material, whereby a relatively large axial space is created here as well.
  • a pump for example for conveying lubricating oil of an internal combustion engine, in particular a multi-stroke vane pump
  • the rotation group comprises a rotor with at least radially movable vanes, a Hubkontur on which the wings with their wing heads sealingly slide, and two axial side covers in which the stroke contour and a first axial side plate are represented by a steel sheet pot and in which a second axial side plate is represented by a sheet steel cover, which is characterized in that the sheet metal lid has an embossed shoulder whose outer contour is the shape having the stroke contour.
  • the metal lid after insertion into the sheet metal cup, the rounding of the sheet metal cup, which are caused by the deep-drawing process, covered and thus produces tight sealing gaps within the rotation group.
  • the metal lid can be produced by fine blanking or fine blanking.
  • a pump according to the invention is characterized in that the suction openings are represented by radial openings in the sheet metal pot.
  • This has the advantage that the rotation group has a narrow construction, since the suction channel can be arranged radially around the sheet metal pot and does not have to be arranged axially on the opposite side of the pressure channel.
  • a pump is preferred in which the outlet openings are represented by axial openings (pressure kidneys) and optionally at least one radial opening in the sheet metal pot.
  • the radial outlet opening can be closed by a temperature switching valve or a pressure switching valve and thus produces a switchable delivery area.
  • a pump according to the invention is characterized in that the temperature switching valve has an overstroke spring. This has the advantage that after closing the radial outlet opening by the temperature switching valve, if a further expansion of a thermal expansion element by increasing the temperature of the lubricating oil sets, the expansion element without deformation or destruction can perform an additional expansion path against the overtravel.
  • the plastic housing is preferably finished sprayed and therefore requires no post-processing. The advantage is that an encapsulated in sheet rotation group is integrated in a plastic housing and so the advantages of the two types of material can be exploited.
  • Another pump according to the invention is characterized in that the axial outlet opening of the switchable delivery area can be closed by a spring-tongue check valve.
  • the shape of the spring tongue check valve the Shape of Hubkonturkurümmung on.
  • the spring tongue check valve is mounted on a pin made of plastic in the plastic housing.
  • the spring tongue check valve is protected by a stroke stop in the plastic housing from overstretching. This design of the spring-tongue check valve has the advantages of being very cost-effective and on the other hand also being space-neutral integrated in the pump.
  • a pump according to the invention is characterized in that the sheet metal pot has a notched or embossed cold-start ring, which in the cold operating state under the wings leads the wings according to the stroke contour to the outside and directs against the stroke contour. Furthermore, a pump is preferred in which the rotor has grooves or depressions for receiving the cold start ring. Also, a pump is preferred in which the sheet metal lid has a notched or embossed cold-start ring.
  • a pump according to the invention is characterized in that the sheet metal lid has embossed impression impression kidneys, that is to say pressure kidneys without passage openings which only effect an axial pressure surface compensation for the rotor in the pressure region.
  • a pump is preferred in which the one or more radial outlet openings of the switchable delivery region open into a channel which opens directly into the intake region of the second, non-switchable delivery region over a short path.
  • FIG. 9 shows the section C-C from FIG. 7.
  • the pump according to the invention is shown in its housing in plan view without cover.
  • the sheet metal pot 1, in which the Hubkontur is shown, contains the other parts of the rotation group such.
  • the rotor 7 has a recess 9, in which z. B. engages the crankshaft of an internal combustion engine and thus drives the lubricating oil pump.
  • the rotation group is arranged with the sheet metal pot 1 in a plastic housing 11 and is closed by the sheet metal lid, not shown here.
  • the completely encased in steel sheet rotation group has the advantage that here do not change the friction pairings.
  • the sheet metal pot 1 is partially surrounded within the plastic housing 11 by a channel 13, which is acted upon by the suction pressure of the pump.
  • a channel 13 which is acted upon by the suction pressure of the pump.
  • Within the rotation group form by the shape of the stroke contour two pressure areas 15.1 and 15.2, in which the cells between wing, rotor, cam and side plates shrink and thus eject the pressure medium, and two suction 17.1 and 17.2, in which enlarge the corresponding cells and suck in the medium.
  • the function of such a double-stroke vane pump is known and need not be explained further here.
  • a temperature switching valve 19 is further arranged, which has a Dehnscherlement within a housing 21 which can press a valve sealing plate 25 against the force of a return spring 27 against the sheet metal pot 1 with temperature increase of the lubricating oil via a pin 23.
  • the ejected from the pressure kidney 15.1 oil thus passes without pressure through the channel 13 to the suction kidney 17.2 of the second pump half and is thus sucked by the pump without much loss.
  • the tin pot 1 has to 17.2 one or more radial openings in the intake of the suction kidney.
  • the suction kidney 17.1 of the first pump part has not visible here radial openings in the tin pot 1, through which 29 can be sucked oil from the suction channel.
  • the suction channel 29 is as well as the suction channel 13 connected to the suction port 31, from which the oil from the engine compartment, such as. B. the oil pan, can be sucked.
  • the oil is then expelled through the lubricating oil pump in the pressure channel 32 and supplied under pressure via the pressure port 34 to the engine.
  • a pressure limiting valve not shown here, is arranged, which opens when the maximum permissible pressure in the pressure region 32 is exceeded and, via the outflow channel 38, supplies the excess oil to the suction region 29.
  • FIG 2 the section B-B of Figure 1 is shown.
  • the sheet metal pot 1 is embedded in the plastic housing 11.
  • the sheet metal pot 1 contains the rotation group and thus, inter alia, the rotor 7 shown here in cross section.
  • the rotation group is closed by a sheet metal cover 40.
  • the stroke contour, as shown in Figure 1 fed directly into the plate, and the bottom plate 42 of the sheet metal cup forms the first axial side plate of the rotation group.
  • the cover 40 has a shoulder 44, which projects into the upper edge of the sheet metal pot 1, which in its outer contour also has the shape of the Hubkontur and thus represents the second axial side plate of the rotation group.
  • a plurality of radial openings 46 and 48 are introduced into the sheet metal pot 1 in the suction region.
  • the intake ports 46 and 48 open into the intake ports 29 and 13, which are shown in Figure 1 in plan view.
  • FIG 3 the design of the sheet metal pot 1 in the plastic housing 11 and the rotor 7 is shown enlarged. It can be seen that the sheet metal pot 1 at its upper end has a rounding 50, which is due to the deep drawing process manufacturing technology.
  • the rotor 7 has on its side surfaces two grooves 52 into which a so-called cold-start ring 54 engages.
  • the cold start ring 54 is notched or stamped out of the sheet metal pot 1 and also has the shape of the stroke contour on a reduced scale.
  • This cold-start ring thus engages within the rotor grooves 52 under the wings and raise them along the contour so that they glide and seal almost at the contour ring, even if the wings are not pressed out by centrifugal forces or by additional pressure forces under the wing.
  • a secure concern of the wing heads on the contour ring is ensured even at cold start and low speeds.
  • the interaction of the sheet metal pot 1 is shown with the sheet metal cover 40 in particular in detail.
  • the rounding 50 is caused by production, but this would be problematic as a sealing surface or running surface for the wings. Therefore, the metal cover 40, which may be made as a flat component with a manufacturing process other than deep drawing, has a sharp-edged deformation of the shoulder 44, which covers the rounding 50 and thus ensures adequate sealing of the rotation group on the top of the rotor 7 and the wing heads ,
  • the wings are housed within the rectangular rotation group space with its side walls and its wing head sufficiently sealed.
  • FIG. 5 shows in cross section the rotation group and the temperature switching valve.
  • the same components are provided with the same reference numerals and will not be explained again here to avoid repetition.
  • the temperature switching valve is extended in this illustration by increased temperature of the lubricating oil and closes with its valve body 25 an opening 56 in the pressure range.
  • This leads to the pressure kidney 15.1 of Figure 1 can not promote in the non-pressurized circulation of the channel 13 and thus via a check valve 64, which will be shown in more detail later, promotes in the pressure channel 66, whereby both pressure kidneys supply the lubricating oil demand of the engine.
  • the temperature switching valve 19 is housed with the housing of Dehnstoff emotionss 21 in a separate cover 62, wherein the Dehnscherlementgeophuse 21 is supported with a so-called over-stroke spring 58 on a web 60 of the lid 62.
  • the overstroke spring 58 secures the expansion element and the housing against overstretching by further increase in temperature and expansion of the expansion element, which works as follows: First, when the temperature increases the expansion element, the actuating rod 23 extend against the force of the spring 27 and thus with the Valve body 25, the pressure port 56 close.
  • the spring 27, which serves as a return spring after cooling for the expansion element and brings the temperature switching valve back into the open position, is surrounded by a spring cup 68, which also serves as a guide for the rod 23 here. If a further expansion of the expansion element now takes place when the temperature switching valve is closed, then the expansion element can deflect against the stop 60 against the force of the overstroke spring 58 and thus avoid destruction of the expansion element or of the housing part supporting the expansion element.
  • the temperature switching valve is in the open, i. shown in the cooled state.
  • the valve closing body 25 has moved away from the radial pressure opening 56 of the sheet metal pot 1, and the pressure oil from the area 15.1 can now flow via the opening 56 into the channel 13 for pressureless circulation up to the suction kidney 17.2 from FIG.
  • the spring cup 68 also serves to guide the actuating pin 23 of the temperature control valve.
  • the return spring 27 has pushed back on the spring cup 68, the actuating pin and the cooled expansion element.
  • the rotation group is removed from the figure 1, so that one can recognize the arrangement of the check valve 64 in an underlying pressure channel 70.
  • the pressure channel 70 and the spring leaf 72 of the check valve 64 are adapted to the stroke contour, so that the spring leaf 72 of the check valve 64 can close the pressure kidney 15.1 of Figure 1.
  • the check valve 64 is mounted by means of a plastic pin 74 in the housing 11 and is fixed by the latter after insertion of the sheet metal pot against the plastic housing.
  • Figure 8 shows the section D-D of Figure 7 and thus the Hubendanschlag 76 of the valve blade 72.
  • Figure 9 shows in section C-C the plastic pin 74 which supports the spring leaf 72 in the plastic housing 11.
  • FIG. 10 shows in cross-section an alternative of the cold-start ring 54.1 to the illustration of the cold-start ring 54 in FIG.
  • the cold start contour 54.1 is pressed out by stamping out of the sheet metal pot 1 and thus engages under the wing 3, which is mounted in the cam ring 7, and thus guides the wing 3 along the stroke contour of the metal cover 1 along.
  • axial and radial openings are provided in the pressure range of the switched stage.
  • the openings in the radial direction with the temperature switching valve or a pressure switching valve are used for the non-pressurized circulation.
  • the oil from the pressure side is flushed out again into the suction chamber for the suction of the next suction stage. Due to the channel guide thus obtained, only small flow losses result by deflection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)

Claims (18)

  1. Pompe, par exemple pour l'alimentation en huile de graissage d'un moteur à combustion interne, en particulier pompe rotative à palettes à course multiple, pour laquelle le groupe de rotation présente un rotor (7) comprenant des palettes (ou lames) (3) au moins mobiles radialement, un contour de course le long duquel les palettes (3) coulissent de manière étanche, par leurs têtes de palettes, et deux couvercles latéraux axiaux tels que des plaques latérales ou des parois de carter, où le contour de course et une première plaque latérale axiale sont représentés par un pot en tôle d'acier (1), et une deuxième plaque latérale axiale est représentée par un couvercle en tôle d'acier (40), caractérisée en ce que le couvercle en tôle (40) présente un épaulement incrusté (44) dont le contour extérieur présente la forme du contour de course.
  2. Pompe selon la revendication 1, caractérisée en ce que le pot en tôle (1) peut être fabriqué par un processus d'emboutissage profond.
  3. Pompe selon la revendication 1 ou la revendication 2, caractérisée en ce que le couvercle en tôle (40) peut être fabriqué par un processus d'estampage de précision ou de découpe de précision.
  4. Pompe selon la revendication 1 à la revendication 3, caractérisée en ce que les ouvertures d'aspiration sont représentées, dans le pot en tôle (1), par des ouvertures radiales (46, 48).
  5. Pompe selon la revendication 1 à la revendication 4, caractérisée en ce que les ouvertures d'échappement sont représentées, dans le pot en tôle (1), par des ouvertures axiales (15.1, 15.2) (orifices réniformes de refoulement) et, le cas échéant, par au moins une ouverture radiale (56).
  6. Pompe selon la revendication 5, caractérisée en ce que l'ouverture radiale d'échappement (56) peut être obturée par une vanne de commande (19) de la température ou bien par une vanne de commande de la pression et, par conséquent, produit une plage d'alimentation régulable.
  7. Pompe selon la revendication 6, caractérisée en ce que la vanne de commande (19) de la température présente un ressort de dépassement de course (58).
  8. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le pot en tôle (1) du groupe de rotation et, le cas échéant, la vanne de commande (19) de la température ou la vanne de commande de la pression, sont intégrés à un carter (11) en matière plastique.
  9. Pompe selon la revendication 8, caractérisée en ce que le carter (11) en matière plastique est réalisé par moulage par injection et ne nécessite, par conséquent, aucun traitement ultérieur.
  10. Pompe selon la revendication 6 à la revendication 9, caractérisée en ce que l'ouverture axiale d'échappement (15.1) de la plage d'alimentation régulable peut être obturée par un clapet antiretour à languette à ressort (64).
  11. Pompe selon la revendication 10, caractérisée en ce que le clapet antiretour à languette à ressort présente la forme de la courbure du contour de course.
  12. Pompe selon la revendication 10 ou la revendication 11, caractérisée en ce que le clapet antiretour à languette à ressort (64) est logé sur un tourillon (74) en matière plastique.
  13. Pompe selon la revendication 10 à la revendication 12, caractérisée en ce qu'une butée de course (76), dans le carter (11) en matière plastique, est associée au clapet antiretour à languette à ressort (64).
  14. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le pot en tôle (1) présente un anneau de démarrage à froid (54, 54.1, 54.2) mortaisé ou incrusté.
  15. Pompe selon la revendication 14, caractérisée en ce que le rotor (7) présente des rainures ou des matriçages enfoncés servant au logement de l'anneau de démarrage à froid (54, 54.1, 54.2).
  16. Pompe selon la revendication 14 ou la revendication 15, caractérisée en ce que le couvercle en tôle (40) présente un anneau de démarrage à froid mortaisé ou incrusté.
  17. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que le couvercle en tôle (40) présente des orifices réniformes aveugles de refoulement, incrustés.
  18. Pompe selon l'une quelconque des revendications 6 à 17, caractérisée en ce que l'ouverture radiale d'échappement (56) de la plage d'alimentation régulable débouche dans un conduit (13) qui débouche directement, par un court trajet, dans la zone d'aspiration (17.2) de la deuxième plage d'alimentation non régulable.
EP04733242A 2003-05-26 2004-05-15 Pompe à cellules en ailettes à pot en tôle d'acier emboutie Expired - Lifetime EP1631745B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10323572 2003-05-26
PCT/DE2004/001032 WO2004109111A1 (fr) 2003-05-26 2004-05-15 Pompe à cellules en ailettes à pot en tôle d'acier emboutie

Publications (2)

Publication Number Publication Date
EP1631745A1 EP1631745A1 (fr) 2006-03-08
EP1631745B1 true EP1631745B1 (fr) 2007-11-07

Family

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EP04733242A Expired - Lifetime EP1631745B1 (fr) 2003-05-26 2004-05-15 Pompe à cellules en ailettes à pot en tôle d'acier emboutie

Country Status (8)

Country Link
US (1) US20070148011A1 (fr)
EP (1) EP1631745B1 (fr)
JP (1) JP2007500309A (fr)
KR (1) KR20060019557A (fr)
CN (1) CN100408858C (fr)
AT (1) ATE377710T1 (fr)
DE (1) DE502004005440D1 (fr)
WO (1) WO2004109111A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112009000258A5 (de) * 2008-03-01 2011-04-14 Ixetic Hückeswagen Gmbh Vakuumpumpengehäusedeckel
DE102009055945B4 (de) * 2009-11-26 2018-10-04 HELLA GmbH & Co. KGaA Flügelzellenpumpe
DE102013213051A1 (de) * 2013-06-18 2014-12-18 Continental Automotive Gmbh Fördereinrichtung zur Förderung von Öl aus einem Vorratsbehälter zu einem Getriebe eines Kraftfahrzeuges
DE102014102643A1 (de) 2014-02-27 2015-08-27 Schwäbische Hüttenwerke Automotive GmbH Rotationspumpe mit Kunststoffverbundstruktur
US20190195221A1 (en) * 2015-12-23 2019-06-27 Sabic Global Technologies B.V. Hybrid metal-plastic parts and process for manufacturing the same
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DE502004005440D1 (de) 2007-12-20
US20070148011A1 (en) 2007-06-28
JP2007500309A (ja) 2007-01-11
CN100408858C (zh) 2008-08-06
KR20060019557A (ko) 2006-03-03
WO2004109111A1 (fr) 2004-12-16
CN1795333A (zh) 2006-06-28
ATE377710T1 (de) 2007-11-15
EP1631745A1 (fr) 2006-03-08

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