EP2513483B1 - Fuel pump - Google Patents

Fuel pump Download PDF

Info

Publication number
EP2513483B1
EP2513483B1 EP10787483.6A EP10787483A EP2513483B1 EP 2513483 B1 EP2513483 B1 EP 2513483B1 EP 10787483 A EP10787483 A EP 10787483A EP 2513483 B1 EP2513483 B1 EP 2513483B1
Authority
EP
European Patent Office
Prior art keywords
region
sectional area
cross
fuel pump
fuel
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
EP10787483.6A
Other languages
German (de)
French (fr)
Other versions
EP2513483A1 (en
Inventor
Matthias Fischer
Bernd Jaeger
Zlatko Penzar
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2513483A1 publication Critical patent/EP2513483A1/en
Application granted granted Critical
Publication of EP2513483B1 publication Critical patent/EP2513483B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F04D5/008—Details of the stator, e.g. channel shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/12—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F04D5/007—Details of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/50—Inlet or outlet
    • F05B2250/503—Inlet or outlet of regenerative pumps

Definitions

  • the invention relates to a fuel pump with the features of the preamble of claim 1.
  • Such a pump is eg from the WO 2005/038259 known.
  • Such fuel pumps on the principle of a side channel pump are used for conveying fuel from a fuel tank to an internal combustion engine of a motor vehicle and are thus known.
  • the fuel Upon rotation of the impeller, the fuel is drawn in via the inlet channel and brought to a higher pressure level during the passage of the part-annular channels.
  • the fuel is conveyed via the outlet channel and the electric motor of the fuel pump to a feed line, which conducts the fuel to the internal combustion engine.
  • the guide vanes in the delivery chambers thereby generate a transverse to the direction of movement of the guide vanes circulation flow, which enters the radially outer region of the impeller and enters the part-annular channel, flows in the partially annular channel from radially outward to radially inward, leaving the partially annular channel radially inward and radially inward enters a vane chamber of the impeller again.
  • the circulation flow is thus distributed in half on the part-annular channel and the blade chambers.
  • the partially annular channels end. While the outlet side channel more or As it flows less into the exhaust passage, the intake side passage reduces its cross-sectional area to zero. This reduction of the cross-sectional area is usually carried out over an angular range up to 40 °.
  • a disadvantage of these fuel pumps is that they generate a significant noise level, which is particularly disturbing when mounted in a fuel tank of a motor vehicle.
  • the invention is therefore an object of the invention to provide a fuel pump with significantly reduced noise emissions, the fuel pump should be inexpensive to produce.
  • a sufficiently shallow rise of the part-annular channel with a concomitant reduction in the cross-sectional area is achieved with an angle range of in particular 90 °.
  • the circulation flow has sufficient time to shift.
  • the part-annular channel is designed in the region of reduction of the cross-sectional area such that the reduction in the cross-sectional area takes place uniformly. That is, the slope of the semi-annular channel is straight.
  • the region of reduction of the cross-sectional area of two partial regions is formed, whereby in the first partial region the cross-sectional area is reduced more strongly than in the second partial region.
  • the second subregion a particularly small influence on the circulation flow occurs. This leads to an additional stabilization of the circulation flow.
  • the critical area based on the length of the part-annular channel, shifted away from the end of the semi-annular channel away.
  • the two subregions are particularly simple if the reduction in the cross-sectional area in both subregions is uniform and thus rectilinear.
  • a transition between the two subregions in the form of a bend is avoided in another embodiment in that the two subregions merge into one another continuously, so that the channel bottom of the partially annular channel, in relation to the length of the two subregions, convexly approximates the impeller.
  • the transition from the part-annular channel in the region in which the cross-sectional area decreases can be formed both as a kink and steadily. In the latter case, this results in a concave formation of the transition.
  • FIG. 1 shows a fuel pump 1 for conveying fuel from a fuel tank 2 of a motor vehicle to an internal combustion engine 3.
  • the fuel pump 1 has a pumping stage with a pump housing 4, which consists of a pump cover 5 and a pump bottom 6.
  • a pump housing In the pump housing, an impeller 7 is arranged.
  • the impeller 7 is driven by a shaft 8 of an electric motor 9.
  • the fuel drawn in from the fuel tank 2 via an inlet channel 10 from the pumping stage is conveyed via an outlet channel 11 and the electric motor 9 to an outlet 12. From there the fuel passes through a feed line 13 to the engine. 3
  • FIG. 2 shows the pump housing 4 with the pump cover 5, the pump bottom 6 and the impeller 7.
  • the impeller 7 has on both sides in each case a ring 14 of blades 15, 15a, 15b, wherein two blades 15, 15a, 15b each have a blade chamber 18, 19th limit.
  • the pump housing 4 has in the region of the blades 15, 15a, 15b on both sides in each case a partially annular channel 16, 17.
  • the partially annular channels 16, 17 together with the blade chambers 18, 19 delivery chambers 20, 21.
  • the delivery chambers 20, 21 are divided in half on each a part-annular channel 16, 17 and the blade chambers 18, 19, which are opposite to the respective part-annular channel 16, 17.
  • the part-annular channels 16, 17 begin in the region of the inlet channel 10 and end after an angular range of about 330 ° in the region of the outlet channel 11. Based on the direction of rotation of the impeller 7 closes at the end of the partially annular channels 16, 17, a scraper 22, which is arranged between the outlet channel 11 and the inlet channel 10. While the part-annular channel 17 in the pump bottom 6 has a constant cross-sectional area over large parts of its extension, the partially annular channel 16 in the pump cover 5 has its end a region 23 with a decreasing cross-sectional area. In the figure, this area is limited by the letters A and B.
  • This range extends over an angular range of 90 °, whereby larger angular ranges of, for example, 110 ° may be possible.
  • the cross-sectional area decreases constantly, so that there is a straight course of the channel bottom.
  • FIG. 3 shows a second embodiment, which differs from the fuel pump FIG. 2 differs only in the training of area 23.
  • the region is subdivided into two subregions 24, 25, wherein the first subregion 24 has a greater reduction in cross-sectional area than the second subregion Part 25 has.
  • the first portion extends over an angular extent of 30 °
  • the second portion 25 extends over 60 °.
  • Both sections 24, 25 each have a rectilinear channel bottom. However, it is also conceivable to form both partial regions 24, 25 of equal length.
  • FIG. 4 Another embodiment shows FIG. 4 ,
  • the channel bottom in the region 23 bulges convexly in the direction of the impeller 7, the curvature being formed most strongly at the beginning of the region 23, relative to the direction of rotation of the impeller 7.
  • the transition from the part-annular channel 17 to the region 23 is formed in the form of a bend in the point A. But it is also conceivable to form the transition steadily and thus concave.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Gegenstand der Erfindung ist eine Kraftstoffpumpe mit den Merkmalen des Oberbegriffes des Anspruchs 1.The invention relates to a fuel pump with the features of the preamble of claim 1.

Eine solche Pumpe ist z.B. aus der WO 2005/038259 bekannt.Such a pump is eg from the WO 2005/038259 known.

Solche Kraftstoffpumpen nach dem Prinzip einer Seitenkanalpumpe werden zum Fördern von Kraftstoff aus einem Kraftstoffbehälter zu einer Brennkraftmaschine eines Kraftfahrzeugs eingesetzt und sind somit bekannt. Bei einer Drehung des Laufrades wird der Kraftstoff über den Einlasskanal angesaugt und während des Durchlaufens der teilringförmigen Kanäle auf ein höheres Druckniveau gebracht. Am Ende der teilringförmigen Kanäle, welche sich über einen Winkelbereich von 300° bis 330° erstrecken können, wird der Kraftstoff über den Auslasskanal und den Elektromotor der Kraftstoffpumpe zu einer Vorlaufleitung gefördert, die den Kraftstoff zur Brennkraftmaschine leitet. Die Leitschaufeln in den Förderkammern erzeugen dabei eine quer zur Bewegungsrichtung der Leitschaufeln verlaufende Zirkulationsströmung, die im radial äußeren Bereich des Laufrades aus- und in den teilringförmigen Kanal eintritt, im teilringförmigen Kanal von radial außen nach radial innen strömt, den teilringförmigen Kanal radial innen verlässt und radial innen in eine Schaufelkammer des Laufrades wieder eintritt. Die Zirkulationsströmung verteilt sich somit hälftig auf den teilringförmigen Kanal und die Schaufelkammern. Im Bereich des Auslasskanals enden die teilringförmigen Kanäle. Während der auslassseitige Kanal mehr oder weniger in den Auslasskanal übergeht, verringert der einlassseitige Kanal seine Querschnittsfläche auf Null. Dieser Verringerung der Querschnittsfläche erfolgt üblicherweise über einen Winkelbereich bis zu 40°. Nachteilig bei diesen Kraftstoffpumpen ist, dass sie einen erheblichen Geräuschpegel erzeugen, der insbesondere bei einer Montage in einem Kraftstoffbehälter eines Kraftfahrzeugs störend ist.Such fuel pumps on the principle of a side channel pump are used for conveying fuel from a fuel tank to an internal combustion engine of a motor vehicle and are thus known. Upon rotation of the impeller, the fuel is drawn in via the inlet channel and brought to a higher pressure level during the passage of the part-annular channels. At the end of the part-annular channels, which may extend over an angular range of 300 ° to 330 °, the fuel is conveyed via the outlet channel and the electric motor of the fuel pump to a feed line, which conducts the fuel to the internal combustion engine. The guide vanes in the delivery chambers thereby generate a transverse to the direction of movement of the guide vanes circulation flow, which enters the radially outer region of the impeller and enters the part-annular channel, flows in the partially annular channel from radially outward to radially inward, leaving the partially annular channel radially inward and radially inward enters a vane chamber of the impeller again. The circulation flow is thus distributed in half on the part-annular channel and the blade chambers. In the area of the outlet channel, the partially annular channels end. While the outlet side channel more or As it flows less into the exhaust passage, the intake side passage reduces its cross-sectional area to zero. This reduction of the cross-sectional area is usually carried out over an angular range up to 40 °. A disadvantage of these fuel pumps is that they generate a significant noise level, which is particularly disturbing when mounted in a fuel tank of a motor vehicle.

Aus der US 2004/0071542 ist ein, einlassseitiger Kanal einer ähnlichen Pumpe definiert, dessen Querschnittsfläche sich über einen Winkelbereich von 40° bis 90° in seinem Anfangteilbereich direkt bei der Einlassöffnung verringert.From the US 2004/0071542 is an inlet-side channel of a similar pump whose cross-sectional area decreases over an angular range of 40 ° to 90 ° in its initial part area directly at the inlet opening.

Der Erfindung liegt daher die Aufgabe zugrunde eine Kraftstoffpumpe mit deutlich verringerten Geräuschemissionen zu schaffen, wobei die Kraftstoffpumpe kostengünstig herstellbar sein soll.The invention is therefore an object of the invention to provide a fuel pump with significantly reduced noise emissions, the fuel pump should be inexpensive to produce.

Erfindungsgemäß wird die Aufgabe mit einer Kraftstoffpumpe mit den Merkmalen des Anspruchs 1 gelöst.According to the invention the object is achieved with a fuel pump having the features of claim 1.

Es wurde gefunden, dass die Zirkulationsströmung bei einer Reduzierung der Querschnittsfläche über einen kurzen Winkelbereich zu wenig Zeit hat, dem sich ändernden Querschnitt zu folgen und sich zu verlagern. Dieser Umstand ist für einen erheblichen Teil der Geräuschemissionen einer Kraftstoffpumpe verantwortlich. Mit der Erstreckung des Bereichs des teilringförmigen Kanals, in dem sich die Querschnittsfläche verringert, über eine Winkelbereich von 70° bis 150° wird nun eine lange Auslaufzone des einlassseitig angeordneten teilringförmigen Kanals geschaffen. Als Folge davon besitzt dieser Bereich einen geringen Anstieg. Aufgrund dieses langgestreckten Bereichs hat die Zirkulationsströmung mehr Zeit sich aus dem teilringförmigen Kanal in die Schaufelkammern des Laufrades und in den gegenüberliegenden teilringförmigen Kanal mit dem Auslasskanal zu verlagern. Dies führt zu einer Reduzierung der Geräuschemissionen der Kraftstoffpumpe. Der Vorteil hierbei besteht darin, dass diese Kanalgestaltung nahezu keinen zusätzlichen Aufwand erfordert. Unabhängig davon, ob die Kanalgeometrie im Pumpendeckel des Pumpengehäuses durch spannende Bearbeitung oder durch Urformen erzeugt wird, entsteht in der Herstellung kein größerer Aufwand, da die Verwendung anderer Bearbeitungsprogramme oder anderer Werkstückformen kostenneutral sind.It has been found that with a reduction in the cross-sectional area over a short angular range, the circulation flow has too little time to follow the changing cross-section and shift. This circumstance accounts for a significant part of the noise emissions of a fuel pump. With the extension of the region of the part-annular channel in which the cross-sectional area decreases over an angular range of 70 ° to 150 °, a long outlet zone of the partially annular channel arranged on the inlet side is now created. As a result, this area has a small increase. Due to this elongated region, the circulation flow has more time to shift from the part-annular channel in the blade chambers of the impeller and in the opposite part-annular channel with the outlet channel. This leads to a reduction of the noise emissions of the fuel pump. The advantage here is that this channel design almost no additional effort required. Regardless of whether the channel geometry is generated in the pump cover of the pump housing by exciting machining or by primary molding, no major effort in the production, since the use of other machining programs or other workpiece shapes are cost-neutral.

Einen ausreichend flachen Anstieg des teilringförmigen Kanals mit einer einhergehenden Verringerung der Querschnittsfläche wird mit einem Winkelbereich von insbesondere 90° erreicht. Bei dieser Ausgestaltung hat die Zirkulationsströmung ausreichend Zeit sich zu verlagern.A sufficiently shallow rise of the part-annular channel with a concomitant reduction in the cross-sectional area is achieved with an angle range of in particular 90 °. In this embodiment, the circulation flow has sufficient time to shift.

In einer besonders einfachen Ausgestaltung ist der teilringförmige Kanal in dem Bereich der Verringerung der Querschnittsfläche derart ausgestaltet, dass die Verringerung der Querschnittsfläche gleichmäßig erfolgt. Das bedeutet, der Anstieg des teilringförmigen Kanals ist geradlinig.In a particularly simple embodiment, the part-annular channel is designed in the region of reduction of the cross-sectional area such that the reduction in the cross-sectional area takes place uniformly. That is, the slope of the semi-annular channel is straight.

Gemäß einer anderen vorteilhaften Ausgestaltung wird der Bereich der Verringerung der Querschnittsfläche von zwei Teilbereichen gebildet, wobei sich im ersten Teilbereich die Querschnittsfläche stärker verringert als im zweiten Teilbereich. Damit wird erreicht, das im ersten Teilbereich eine stärkere Beeinflussung der Zirkulationsströmung erfolgt, mit den damit verbundenen erhöhten Geräuschemissionen, die jedoch in einem wesentlich geringerem Umfang entstehen als das bei Stand der Technik bekannt ist. Im zweiten Teilbereich tritt dagegen eine besonders geringe Beeinflussung der Zirkulationsströmung auf. Dadurch kommt es zu einer zusätzlichen Stabilisierung der Zirkulationsströmung. Zudem wird durch diese Gestaltung der kritische Bereich, bezogen auf die Länge des teilringförmigen Kanals, vom Ende des teilringförmigen Kanals weg verlagert. Dieser Umstand ist insofern nicht unerheblich, da mit dem Ende des teilringförmigen Kanals der Abstreifer beginnt, welcher jeweils das Ende und den Anfang der teilringförmigen Kanäle und somit Auslass und Einlass miteinander verbindet, und der Bereich des Abstreifers ebenfalls ein Bereich von Geräuschemissionen ist.According to another advantageous embodiment, the region of reduction of the cross-sectional area of two partial regions is formed, whereby in the first partial region the cross-sectional area is reduced more strongly than in the second partial region. This ensures that in the first part of a stronger influence on the circulation flow takes place, with the associated increased noise emissions, however, to a much lesser extent than is known in the prior art. On the other hand, in the second subregion, a particularly small influence on the circulation flow occurs. This leads to an additional stabilization of the circulation flow. In addition, by this design, the critical area, based on the length of the part-annular channel, shifted away from the end of the semi-annular channel away. This circumstance is not insignificant insofar as begins with the end of the part-annular channel of the scraper, which respectively the end and the beginning of the part-annular channels and thus outlet and inlet with each other connects, and the area of the scraper is also an area of noise emissions.

Die beiden Teilbereiche sind besonders einfach ausgebildet, wenn die Verringerung der Querschnittsfläche in beiden Teilbereichen gleichmäßig und somit jeweils geradlinig erfolgt.The two subregions are particularly simple if the reduction in the cross-sectional area in both subregions is uniform and thus rectilinear.

Ein Übergang zwischen den beiden Teilbereichen in Form eines Knicks wird in einer anderen Ausgestaltung dadurch vermieden, dass die beiden Teilbereiche stetig ineinander übergehen, so dass sich der Kanalgrund des teilringförmigen Kanals, bezogen auf die Länge der beiden Teilbereiche, konvexartig dem Laufrad annähert.A transition between the two subregions in the form of a bend is avoided in another embodiment in that the two subregions merge into one another continuously, so that the channel bottom of the partially annular channel, in relation to the length of the two subregions, convexly approximates the impeller.

Der Übergang vom teilringförmigen Kanal in den Bereich, in dem sich die Querschnittsfläche verringert, kann sowohl als Knick als auch stetig ausgebildet sein. Im letzteren Fall ergibt sich damit eine konkave Ausbildung des Übergangs.The transition from the part-annular channel in the region in which the cross-sectional area decreases, can be formed both as a kink and steadily. In the latter case, this results in a concave formation of the transition.

An mehreren Ausführungsbeispielen wird die Erfindung näher erläutert. Es zeigen in

Figur 1:
eine erfindungsgemäße Kraftstoffpumpe,
Figur 2:
eine schematische Schnittdarstellung des Pumpengehäuses,
Figur 3-4:
weitere Ausführungsformen des Pumpengehäuses.
In several embodiments, the invention will be explained in more detail. It show in
FIG. 1:
a fuel pump according to the invention,
FIG. 2:
a schematic sectional view of the pump housing,
Figure 3-4:
further embodiments of the pump housing.

Figur 1 zeigt eine Kraftstoffpumpe 1 zum Fördern von Kraftstoff aus einem Kraftstoffbehälter 2 eines Kraftfahrzeuges zu einer Brennkraftmaschine 3. Die Kraftstoffpumpe 1 besitzt eine Pumpstufe mit einem Pumpengehäuse 4, welches aus einem Pumpendeckel 5 und einem Pumpenboden 6 besteht. Im Pumpengehäuse ist ein Laufrad 7 angeordnet. Das Laufrad 7 wird über eine Welle 8 eines Elektromotors 9 angetrieben. Der von der Pumpstufe über einen Einlasskanal 10 aus dem Kraftstoffbehälter 2 angesaugte Kraftstoff über einen Auslasskanal 11 und den Elektromotor 9 zu einem Auslass 12 gefördert. Von dort gelangt der Kraftstoff über eine Vorlaufleitung 13 zur Brennkraftmaschine 3. FIG. 1 shows a fuel pump 1 for conveying fuel from a fuel tank 2 of a motor vehicle to an internal combustion engine 3. The fuel pump 1 has a pumping stage with a pump housing 4, which consists of a pump cover 5 and a pump bottom 6. In the pump housing, an impeller 7 is arranged. The impeller 7 is driven by a shaft 8 of an electric motor 9. The fuel drawn in from the fuel tank 2 via an inlet channel 10 from the pumping stage is conveyed via an outlet channel 11 and the electric motor 9 to an outlet 12. From there the fuel passes through a feed line 13 to the engine. 3

Figur 2 zeigt das Pumpengehäuse 4 mit den Pumpendeckel 5, dem Pumpenboden 6 und dem Laufrad 7. Das Laufrad 7 besitzt zu beiden Seiten jeweils einen Kranz 14 von Schaufeln 15, 15a, 15b, wobei zwei Schaufeln 15, 15a, 15b jeweils eine Schaufelkammer 18, 19 begrenzen. Das Pumpengehäuse 4 hat im Bereich der Schaufeln 15, 15a, 15b auf beiden Seiten jeweils einen teilringförmigen Kanal 16, 17. Die teilringförmigen Kanäle 16, 17 bilden zusammen mit den Schaufelkammern 18, 19 Förderkammern 20, 21. Die Förderkammern 20, 21 sind dabei hälftig auf je einen teilringförmigen Kanal 16, 17 und die Schaufelkammern 18, 19 aufgeteilt, die dem jeweiligen teilringförmigen Kanal 16, 17 gegenüberliegen. Die teilringförmigen Kanäle 16, 17 beginnen im Bereich des Einlasskanals 10 und enden nach einem Winkelbereich von ca. 330° im Bereich des Auslasskanals 11. Bezogen auf die Drehrichtung des Laufrades 7 schließt sich am Ende der teilringförmigen Kanäle 16, 17 ein Abstreifer 22 an, der zwischen dem Auslasskanal 11 und dem Einlasskanal 10 angeordnet ist. Während der teilringförmige Kanal 17 im Pumpenboden 6 über weite Teile seiner Erstreckung eine konstante Querschnittsfläche besitzt, weist der teilringförmige Kanal 16 im Pumpendeckel 5 seinem Ende einen Bereich 23 mit einer sich verringernden Querschnittsfläche auf. In der Figur ist dieser Bereich mit den Buchstaben A und B begrenzt. Dieser Bereich erstreckt sich über einen Winkelbereich von 90°, wobei auch größere Winkelbereiche von beispielsweise 110° möglich sein können. Über den Verlauf des Bereiches 23 nimmt die Querschnittsfläche konstant ab, so dass sich ein geradliniger Verlauf des Kanalgrundes ergibt. FIG. 2 shows the pump housing 4 with the pump cover 5, the pump bottom 6 and the impeller 7. The impeller 7 has on both sides in each case a ring 14 of blades 15, 15a, 15b, wherein two blades 15, 15a, 15b each have a blade chamber 18, 19th limit. The pump housing 4 has in the region of the blades 15, 15a, 15b on both sides in each case a partially annular channel 16, 17. The partially annular channels 16, 17 together with the blade chambers 18, 19 delivery chambers 20, 21. The delivery chambers 20, 21 are divided in half on each a part-annular channel 16, 17 and the blade chambers 18, 19, which are opposite to the respective part-annular channel 16, 17. The part-annular channels 16, 17 begin in the region of the inlet channel 10 and end after an angular range of about 330 ° in the region of the outlet channel 11. Based on the direction of rotation of the impeller 7 closes at the end of the partially annular channels 16, 17, a scraper 22, which is arranged between the outlet channel 11 and the inlet channel 10. While the part-annular channel 17 in the pump bottom 6 has a constant cross-sectional area over large parts of its extension, the partially annular channel 16 in the pump cover 5 has its end a region 23 with a decreasing cross-sectional area. In the figure, this area is limited by the letters A and B. This range extends over an angular range of 90 °, whereby larger angular ranges of, for example, 110 ° may be possible. Over the course of the region 23, the cross-sectional area decreases constantly, so that there is a straight course of the channel bottom.

Figur 3 zeigt eine zweite Ausführungsform, die sich von der Kraftstoffpumpe nach Figur 2 lediglich in der Ausbildung des Bereiches 23 unterscheidet. Der Bereich ist in zwei Teilbereiche 24, 25 unterteilt, wobei der erste Teilbereich 24 eine größere Reduzierung der Querschnittsfläche als der zweite Teilbereich 25 aufweist. So erstreckt sich der erste Teilbereich über eine Winkelerstreckung von 30°, während sich der zweite Teilbereich 25 über 60° erstreckt. Beide Teilbereiche 24, 25 weisen dabei jeweils einen geradlinig verlaufenden Kanalgrund auf.
Es ist aber auch denkbar, beide Teilbereiche 24, 25 gleich lang auszubilden. FIG. 3 shows a second embodiment, which differs from the fuel pump FIG. 2 differs only in the training of area 23. The region is subdivided into two subregions 24, 25, wherein the first subregion 24 has a greater reduction in cross-sectional area than the second subregion Part 25 has. Thus, the first portion extends over an angular extent of 30 °, while the second portion 25 extends over 60 °. Both sections 24, 25 each have a rectilinear channel bottom.
However, it is also conceivable to form both partial regions 24, 25 of equal length.

Eine weitere Ausführungsform zeigt Figur 4. Der Kanalgrund im Bereich 23 wölbt sich konvex in Richtung Laufrad 7, wobei die Wölbung am stärksten am Anfang des Bereichs 23, bezogen auf die Drehrichtung des Laufrades 7, ausgebildet ist. Der Übergang vom teilringförmigen Kanal 17 zum Bereich 23 ist in Form eines Knicks im Punkt A ausgebildet. Es ist aber auch denkbar, den Übergang stetig und somit konkav auszubilden.Another embodiment shows FIG. 4 , The channel bottom in the region 23 bulges convexly in the direction of the impeller 7, the curvature being formed most strongly at the beginning of the region 23, relative to the direction of rotation of the impeller 7. The transition from the part-annular channel 17 to the region 23 is formed in the form of a bend in the point A. But it is also conceivable to form the transition steadily and thus concave.

Claims (6)

  1. Fuel pump (1) comprising a driven impeller (7) which rotates in a pump housing (4) and has, on its two sides, guide vanes (15, 15a, 15b) which each delimit a ring (14) of vane chambers (18, 19), and having partial ring-shaped ducts (16, 17) which are arranged on both sides in the region of the guide vanes (15, 15a, 15b) in the pump housing and which form, with the vane chambers (18, 19), delivery chambers (20, 21) for delivering the fuel, wherein an inlet duct (10) opens into the one delivery chamber, and the other delivery chamber opens into an outlet duct (11), vane chambers which lie opposite one another are connected to one another, and the cross-sectional area of the partial ring-shaped duct (16), which is arranged on the inlet side, decreases to zero by the end of the partial ring-shaped duct, characterized in that the partial ring-shaped duct (16), which is arranged on the inlet side, has at its end a region (23) in which the cross-sectional area decreases, wherein this region (23) extends over an angular range of 70° to 150°.
  2. Fuel pump according to Claim 1, characterized in that the angular range is 90°.
  3. Fuel pump according to at least one of Claims 1 and 2, characterized in that the partial ring-shaped duct (16) is configured in the region with the decreasing cross-sectional area in such a way that the cross-sectional area decreases uniformly.
  4. Fuel pump according to at least one of Claims 1 and 2, characterized in that the region (23) with the decreasing cross-sectional area is formed by two sub-regions (24, 25) lying one behind the other, wherein the cross-sectional area decreases to a greater extent in the first sub-region (24) than in the second sub-region (25).
  5. Fuel pump according to Claim 4, characterized in that the cross-sectional area decreases uniformly in each of the two sub-regions (24, 25).
  6. Fuel pump according to Claim 4, characterized in that the two sub-regions (24, 25) merge with one another constantly.
EP10787483.6A 2009-12-16 2010-12-09 Fuel pump Active EP2513483B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009058672 2009-12-16
DE102010004379A DE102010004379A1 (en) 2009-12-16 2010-01-12 Fuel pump
PCT/EP2010/069241 WO2011082930A1 (en) 2009-12-16 2010-12-09 Fuel pump

Publications (2)

Publication Number Publication Date
EP2513483A1 EP2513483A1 (en) 2012-10-24
EP2513483B1 true EP2513483B1 (en) 2016-05-25

Family

ID=43760003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10787483.6A Active EP2513483B1 (en) 2009-12-16 2010-12-09 Fuel pump

Country Status (6)

Country Link
US (1) US9638192B2 (en)
EP (1) EP2513483B1 (en)
JP (1) JP5744056B2 (en)
CN (1) CN102812252B (en)
DE (1) DE102010004379A1 (en)
WO (1) WO2011082930A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013200713A1 (en) * 2013-01-18 2014-07-24 Robert Bosch Gmbh Side channel pump with asymmetrical cross sections of the side channels
DE102013220717B4 (en) 2013-10-14 2016-04-07 Continental Automotive Gmbh pump
EP3913228A4 (en) * 2019-01-16 2022-10-26 Mitsuba Corporation Non-positive displacement type pump and liquid supply device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT109069B (en) 1927-01-24 1928-03-10 Rudolph Siegel Self-priming centrifugal pump.
JPS62120078A (en) 1985-11-20 1987-06-01 Fujitsu Ltd Manufacture of semiconductor device
JPS6425494A (en) 1987-07-21 1989-01-27 Mitsubishi Electric Corp Semiconductor laser device and manufacture thereof
JPS6425494U (en) * 1987-08-05 1989-02-13
JPH02103194U (en) * 1989-01-31 1990-08-16
JP3237360B2 (en) 1993-02-04 2001-12-10 株式会社デンソー Regenerative pump and its casing
DE4343078B4 (en) 1993-12-16 2007-09-13 Robert Bosch Gmbh Aggregate for conveying fuel from a storage tank to an internal combustion engine
DE19643728A1 (en) 1996-10-23 1998-04-30 Mannesmann Vdo Ag Feed pump
US6068456A (en) 1998-02-17 2000-05-30 Walbro Corporation Tapered channel turbine fuel pump
JP4049488B2 (en) 1999-08-25 2008-02-20 大建産業株式会社 Tunnel waterproof sheet laying device
JP3519654B2 (en) * 1999-12-03 2004-04-19 米原技研有限会社 Pressurized centrifugal pump
US6527506B2 (en) * 2000-03-28 2003-03-04 Delphi Technologies, Inc. Pump section for fuel pump
DE10019911A1 (en) * 2000-04-20 2001-10-25 Mannesmann Vdo Ag Feed pump esp. in surge chamber of motor vehicle fuel tank has rotor with several planes and rings of guide blades located in different planes
US6921168B2 (en) * 2002-07-24 2005-07-26 Novartis Ag Translating contact lens having a ramped ridge
JP4310426B2 (en) 2002-07-25 2009-08-12 米原技研有限会社 Gas mixing structure of pressurized centrifugal pump
US6767181B2 (en) 2002-10-10 2004-07-27 Visteon Global Technologies, Inc. Fuel pump
US20040208763A1 (en) * 2003-04-21 2004-10-21 Visteon Global Technologies, Inc. Regenerative ring impeller pump
DE10348008A1 (en) * 2003-10-15 2005-05-19 Siemens Ag Fuel pump
JP4672420B2 (en) * 2005-04-08 2011-04-20 愛三工業株式会社 Fuel pump
JP4396750B2 (en) * 2007-09-14 2010-01-13 株式会社デンソー Fuel pump

Also Published As

Publication number Publication date
US20120301289A1 (en) 2012-11-29
CN102812252B (en) 2016-06-08
US9638192B2 (en) 2017-05-02
WO2011082930A1 (en) 2011-07-14
JP2013514482A (en) 2013-04-25
EP2513483A1 (en) 2012-10-24
JP5744056B2 (en) 2015-07-01
DE102010004379A1 (en) 2011-06-22
CN102812252A (en) 2012-12-05

Similar Documents

Publication Publication Date Title
DE19929978A1 (en) Fan with axial blades, with air guide elements in entry-side region of hub and on induction side of blades
EP2628958A2 (en) Diffuser for an impeller pump and impeller pump
DE2338395C3 (en) Fuel feed pumps, in particular for motor vehicles
DE102012106810A1 (en) Impeller for a fluid energy machine
EP1828609B1 (en) Vane cell pump
DE102014117203A1 (en) Compressor for an exhaust gas turbocharger
DE10019911A1 (en) Feed pump esp. in surge chamber of motor vehicle fuel tank has rotor with several planes and rings of guide blades located in different planes
EP2513483B1 (en) Fuel pump
DE10024741B4 (en) Side channel pump
DE19719609A1 (en) Fuel supply unit for internal combustion engine
EP1103723B1 (en) Fuel pump
EP1606516B1 (en) Fuel pump
DE102006053933A1 (en) Side channel pump
EP2342464B1 (en) Side channel blower, in particular secondary air blower for an internal combustion engine
EP1131560B1 (en) Side channel pump
EP1021655B1 (en) Delivery pump
DE4340011B4 (en) Peripheral pump, in particular for conveying fuel from a storage tank to the internal combustion engine of a motor vehicle
DE102010062968A1 (en) Radial compressor for exhaust gas turbocharger for fuel cell system of combustion engine in motor car, has axial spacer attached to intake guide such that spacer measures distance between intake guide and bearing housing
DE10054590B4 (en) Automobile fuel pump has 2 concentric feed chambers for feeding fuel to engine and to suction pump simultaneously
DE102007026533A1 (en) Fuel pump
DE3936357A1 (en) WING CELL COMPRESSORS
DE102015211270A1 (en) Turbocharger for a motor vehicle
DE102016009028A1 (en) Rotor-stator system with an inlet funnel for an eccentric screw pump
DE10123992A1 (en) Fuel flow pump has supply channel which extends in initial region radially inward as blade chamber base of pumpwheel
EP3227560B1 (en) Compressor having a sealing channel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120716

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20151211

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

Ref country code: AT

Ref legal event code: REF

Ref document number: 802564

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010011752

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160825

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160826

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160926

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010011752

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20170228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161231

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161231

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161209

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161209

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161209

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20161231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 802564

Country of ref document: AT

Kind code of ref document: T

Effective date: 20161209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161209

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20101209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502010011752

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502010011752

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502010011752

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231221

Year of fee payment: 14

Ref country code: DE

Payment date: 20231231

Year of fee payment: 14