EP2003322A2 - Fuel pump with electronically commuted motor - Google Patents

Fuel pump with electronically commuted motor Download PDF

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Publication number
EP2003322A2
EP2003322A2 EP08156792A EP08156792A EP2003322A2 EP 2003322 A2 EP2003322 A2 EP 2003322A2 EP 08156792 A EP08156792 A EP 08156792A EP 08156792 A EP08156792 A EP 08156792A EP 2003322 A2 EP2003322 A2 EP 2003322A2
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EP
European Patent Office
Prior art keywords
fuel
pump
delivery device
head
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08156792A
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German (de)
French (fr)
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EP2003322B1 (en
EP2003322A3 (en
Inventor
Matthias Boutros
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TI Automotive Neuss GmbH
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TI Automotive Neuss GmbH
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Publication of EP2003322A2 publication Critical patent/EP2003322A2/en
Publication of EP2003322A3 publication Critical patent/EP2003322A3/en
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Classifications

    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/14—Feeding by means of driven pumps the pumps being combined with other apparatus
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/44—Filters structurally associated with pumps

Definitions

  • the invention relates to a fuel delivery device for conveying fuel in the direction of an internal combustion engine
  • DE 100 06 622 describes a fuel supply device for an internal combustion engine of a motor vehicle, wherein a delivery unit promotes fuel from a reservoir to the engine. Downstream of the delivery unit, a fuel filter is arranged and downstream of the fuel filter, a pressure sensor is arranged. The pressure sensor is connected to a control device, by which the operation of the delivery unit is controlled such that the fuel pressure is at least approximately equal to a target pressure. The control device is arranged outside of the delivery unit.
  • DE 199 17 349 describes a pump assembly having a pump head and a pump housing within which an electric pump is disposed. Furthermore, for remote control of the electric pump a electronic control device provided, the control device is located outside the electric pump.
  • control electronics By providing a control electronics outside of the pump housing, a high cost of materials is caused. Furthermore, electrical losses occur due to the long conduction paths from the pump to the control device. Furthermore, a relatively large volume of construction is required because the control electronics claimed a separate housing. Furthermore, contact difficulties can occur at the electrical contact with the fuel pump, which increases the probability of failure of the fuel pump. In particular, an interruption of the contact, caused for example by vibrations.
  • the object of the invention is to provide a fuel delivery device that is constructed inexpensively and allows a more reliable operation.
  • a fuel delivery device for delivering fuel toward an internal combustion engine includes a pump housing and a pump head connected to the pump housing. Furthermore, a fuel pump is provided with an electronically commutated brushless motor. The fuel pump is preferably disposed within a fuel filter, which in turn may be housed in the filter housing.
  • the filter housing can be closed, for example, at its geodetically upper side by the filter head.
  • the electronic control unit for the electronically commutated brushless motor of the fuel pump is arranged in and / or on the pump head.
  • the control electronics can thereby be completely accommodated in the pump head. Also, the control electronics completely outside, but be mounted directly on the pump head. A combination of these two embodiments is also possible
  • the cost of materials for the fuel delivery device is reduced. In particular, therefore, the construction of the fuel delivery device can be made easier and less expensive. Furthermore, electrical losses caused by long conduction paths from the fuel pump to the control electronics are reduced and preferably avoided. For this purpose, it is preferred that the conduction paths from the control electronics to the electronically commutated brushless motor are made short.
  • the probability of failure of the fuel delivery device can also be reduced, as can be dispensed with an external contacting of the fuel pump to the control electronics.
  • the required construction volume for the fuel delivery device can be further reduced because the control electronics does not require a separate housing.
  • the use of a brushless motor allows for a more robust design that allows for reliable operation of the fuel delivery device. In particular, disturbances in the operation of the fuel pump can be reduced by a brushless motor.
  • the fuel filter may be located outside of the pump housing before or after the fuel pump.
  • the fuel filter can also be arranged inside the pump housing, preferably around the pump, so that the pump housing is a filter housing.
  • the pump head is designed as a filter head
  • an electronic control unit in particular for speed control of the electronically commutated brushless motor of the fuel pump is arranged in and / or on the filter head.
  • an electronic pressure sensor for pressure control of the fuel pump can be arranged in and / or on the filter head.
  • All mentioned electronic components can be mounted on a circuit board in and / or on the filter head, for example.
  • the control electronics in the filter head may be, for example, an electronic circuit by which the stator of the electronically commutated motor is driven.
  • the control can take place in dependence on the rotor position, which can be measured with a suitable device, for example by Hall sensors.
  • the filter head comprises a material with high thermal conductivity, for example a metallic material.
  • the material of the filter head has a thermal conductivity of more than 100 W / mK and in particular a thermal conductivity of more than 200 W / mK.
  • Preferred materials are, for example, die-cast zinc with a thermal conductivity of about 115 W / mK or aluminum with a thermal conductivity of about 237 W / mK.
  • the filter head may have a heat sink, for example with cooling fins or an otherwise enlarged cooling surface. If a high thermal conductivity of the filter head is not needed, for example because the components to be cooled produce a low heat loss, a plastic material can also be used. This is preferably PA6.6 (melt), which has a thermal conductivity of about 0.28 W / mK,
  • control electronics with good thermal conductivity to the filter head.
  • the control electronics may be formed, for example, as a circuit board, which has a large contact area to the filter head.
  • a fuel delivery device 11 for conveying fuel in the direction of an internal combustion engine, not shown, has a filter housing 10, a Filter head 12, and a fuel filter 14.
  • a fuel pump 16 with an electronically commutated brushless motor, not shown, is disposed within the fuel filter 14.
  • the filter housing 10 has an inlet 30, via which fuel is sucked in by the fuel pump 16. Furthermore, an outlet 32 is provided, is conveyed via the fuel by the fuel pump 16 in the direction of the internal combustion engine.
  • the filter head 12 may for example have a circuit board on which the control electronics 18 is arranged for the electronically commutated brushless motor of the fuel pump.
  • an electronic pressure sensor 20 for pressure control of the fuel pump 16 may be further provided on this board.
  • a mechanical pressure control by a mechanical pressure regulator can take place.
  • the fuel delivery device may have an electrical connection device 26.
  • the filter head 12 may comprise a metallic material.
  • a cooling body 22 may be provided. This may for example be attached to a cover 24 which is connected to the filter head 12.
  • seals in particular in the form of O-rings may be provided. These may be arranged, for example, between the fuel pump 16 and the filter housing 10 or between the fuel filter 14 and the filter housing 10 or the filter head 12.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The device has a pump housing (10), where a pump head (12) is connected with the pump housing, and a fuel pump (16) is arranged in the pump housing. The fuel pump has an electronically commutating brushless motor. Control electronics (18) for the electronically commutating brushless motor is arranged in and/or at the pump head. A fuel filter is arranged in the pump housing, and the pump head exhibits a material with high heat conductivity.

Description

Die Erfindung betrifft eine Kraftstofffördervorrichtung zum Fördern von Kraftstoff in Richtung einer Brennkraftmaschine,The invention relates to a fuel delivery device for conveying fuel in the direction of an internal combustion engine,

Zum Fördern von Kraftstoff in Richtung einer Brennkraftmaschine sind viele Arten von Kraftstoffpumpen bekannt.For conveying fuel toward an internal combustion engine, many types of fuel pumps are known.

DE 100 06 622 beschreibt eine Kraftstoffversorgungseinrichtung für eine Brennkraftmaschine eines Kraftfahrzeugs, wobei ein Förderaggregat Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine fördert. Stromabwärts des Förderaggregats ist ein Kraftstofffilter angeordnet und stromabwärts des Kraftstofffilters ist ein Drucksensor angeordnet. Der Drucksensor ist mit einer Steuereinrichtung verbunden, durch die der Betrieb des Förderaggregats derart gesteuert wird, dass der Kraftstoffdruck zumindest annähernd gleich einem Solldruck ist. Die Steuereinrichtung ist außerhalb des Förderaggregats angeordnet. DE 100 06 622 describes a fuel supply device for an internal combustion engine of a motor vehicle, wherein a delivery unit promotes fuel from a reservoir to the engine. Downstream of the delivery unit, a fuel filter is arranged and downstream of the fuel filter, a pressure sensor is arranged. The pressure sensor is connected to a control device, by which the operation of the delivery unit is controlled such that the fuel pressure is at least approximately equal to a target pressure. The control device is arranged outside of the delivery unit.

DE 199 17 349 beschreibt eine Pumpenanordnung, die einen Pumpenkopf und ein Pumpengehäuse aufweist, innerhalb dessen eine elektrische Pumpe angeordnet ist. Weiterhin ist zur Fernsteuerung der elektrischen Pumpe eine elektronische Steuervorrichtung vorgesehen, Die Steuervorrichtung befindet sich außerhalb der elektrischen Pumpe. DE 199 17 349 describes a pump assembly having a pump head and a pump housing within which an electric pump is disposed. Furthermore, for remote control of the electric pump a electronic control device provided, the control device is located outside the electric pump.

Durch das Vorsehen einer Steuerelektronik außerhalb des Pumpengehäuses wird ein hoher Materialaufwand verursacht. Weiterhin entstehen durch die langen Leitungswege von der Pumpe zu der Steuervorrichtung elektrische Verluste. Ferner wird ein relativ großes Bauvolumen benötigt, da die Steuerelektronik ein separates Gehäuse beansprucht. Weiterhin können an der elektrischen Kontaktierung zur Kraftstoffpumpe Kontaktschwierigkeiten entstehen, was die Ausfallwahrscheinlichkeit der Kraftstoffpumpe erhöht. Insbesondere kann eine Unterbrechung der Kontaktierung, beispielsweise durch Schwingungen verursacht werden.By providing a control electronics outside of the pump housing, a high cost of materials is caused. Furthermore, electrical losses occur due to the long conduction paths from the pump to the control device. Furthermore, a relatively large volume of construction is required because the control electronics claimed a separate housing. Furthermore, contact difficulties can occur at the electrical contact with the fuel pump, which increases the probability of failure of the fuel pump. In particular, an interruption of the contact, caused for example by vibrations.

Aufgabe der Erfindung ist es, eine Kraftstofffördervorrichtung zu schaffen, die kostengünstig aufgebaut ist und einen zuverlässigeren Betrieb ermöglicht.The object of the invention is to provide a fuel delivery device that is constructed inexpensively and allows a more reliable operation.

Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1.The object is achieved according to the invention by the features of claim 1.

Eine Kraftstofffördervorrichtung zum Fördern von Kraftstoff in Richtung einer Brennkraftmaschine weist ein Pumpengehäuse sowie einen Pumenkopf auf, der mit dem Pumpengehäuse verbunden ist. Weiterhin ist eine Kraftstoffpumpe mit einem elektronisch kommutierten bürstenlosen Motor vorgesehen. Die Kraftstoffpumpe ist vorzugsweise innerhalb eines Kraftstofffilters angeordnet, der wiederum im Filtergehäuse untergebracht sein kann. Das Filtergehäuse kann beispielsweise an seiner geodätisch oberen Seite durch den Filterkopf verschlossen sein.A fuel delivery device for delivering fuel toward an internal combustion engine includes a pump housing and a pump head connected to the pump housing. Furthermore, a fuel pump is provided with an electronically commutated brushless motor. The fuel pump is preferably disposed within a fuel filter, which in turn may be housed in the filter housing. The filter housing can be closed, for example, at its geodetically upper side by the filter head.

Erfindungsgemäß ist die Steuerelektronik für den elektronisch kommutierten bürstenlosen Motor der Kraftstoffpumpe im und/ oder am Pumpenkopf angeordnet, Die Steuerelektronik kann dabei vollständig im Pumpenkopf untergebracht sein. Auch kann die Steuerelektronik vollständig außerhalb, jedoch unmittelbar am Pumpenkopf angebracht sein. Eine Kombination dieser beiden Ausführungsformen ist ebenfalls möglich,According to the invention, the electronic control unit for the electronically commutated brushless motor of the fuel pump is arranged in and / or on the pump head. The control electronics can thereby be completely accommodated in the pump head. Also, the control electronics completely outside, but be mounted directly on the pump head. A combination of these two embodiments is also possible

Durch die Unterbringung der Steuerelektronik für den elektronisch kommutierten bürstenlosen Motor im Pumpenkopf wird der Materialaufwand für die Kraftstofffördervorrichtung verringert. Insbesondere kann daher die Konstruktion der Kraftstofffördervorrichtung einfacher und kostengünstiger erfolgen. Ferner werden elektrische Verluste, die durch lange Leitungswege von der Kraftstoffpumpe zu der Steuerelektronik verursacht werden, verringert und vorzugsweise vermieden. Dafür ist es bevorzugt, dass die Leitungswege von der Steuerelektronik zu dem elektronisch kommutierten bürstenlosen Motor kurz ausgebildet sind.By accommodating the control electronics for the electronically commutated brushless motor in the pump head, the cost of materials for the fuel delivery device is reduced. In particular, therefore, the construction of the fuel delivery device can be made easier and less expensive. Furthermore, electrical losses caused by long conduction paths from the fuel pump to the control electronics are reduced and preferably avoided. For this purpose, it is preferred that the conduction paths from the control electronics to the electronically commutated brushless motor are made short.

Die Ausfallwahrscheinlichkeit der Kraftstofffördervorrichtung kann ferner reduziert werden, da auf eine externe Kontaktierung der Kraftstoffpumpe zu der Steuerelektronik verzichtet werden kann. Das erforderliche Bauvolumen für die Kraftstofffördervorrichtung kann weiterhin reduziert werden, da die Steuerelektronik kein separates Gehäuse benötigt. Die Verwendung eines bürstenlosen Motors erlaubt einen robusteren Aufbau, der einen zuverlässigen Betrieb der Kraftstofffördervorrichtung ermöglicht. Insbesondere können durch einen bürstenlosen Motor Störungen im Betrieb der Kraftstoffpumpe verringert werden.The probability of failure of the fuel delivery device can also be reduced, as can be dispensed with an external contacting of the fuel pump to the control electronics. The required construction volume for the fuel delivery device can be further reduced because the control electronics does not require a separate housing. The use of a brushless motor allows for a more robust design that allows for reliable operation of the fuel delivery device. In particular, disturbances in the operation of the fuel pump can be reduced by a brushless motor.

Der Kraftstofffilter kann vor oder nach der Kraftstoffpumpe außerhalb des Pumpengehäuses angeordnet sein. Alternativ kann der Kraftstofffilter auch innerhalb des Pumpengehäuses vorzugsweise um die Pumpe herum angeordnet sein, so dass es sich bei dem Pumpengehäuse um ein Filtergehäuse handelt. In diesem Fall ist der Pumpenkopf als Filterkopf ausgebildet,The fuel filter may be located outside of the pump housing before or after the fuel pump. Alternatively, the fuel filter can also be arranged inside the pump housing, preferably around the pump, so that the pump housing is a filter housing. In this case, the pump head is designed as a filter head,

Vorzugsweise ist im und/ oder am Filterkopf eine Regelelektronik, insbesondere zur Drehzahlregelung des elektronisch kommutierten burstenlosen Motors der Kraftstoffpumpe angeordnet. Besonders bevorzugt kann ein elektronischer Drucksensor zur Druckregelung der Kraftstoffpumpe im und/ oder am Filterkopf angeordnet sein.Preferably, an electronic control unit, in particular for speed control of the electronically commutated brushless motor of the fuel pump is arranged in and / or on the filter head. Particularly preferably, an electronic pressure sensor for pressure control of the fuel pump can be arranged in and / or on the filter head.

Sämtliche erwähnten elektronischen Komponenten können beispielsweise auf einer Platine im und/ oder am Filterkopf angebracht sein.All mentioned electronic components can be mounted on a circuit board in and / or on the filter head, for example.

Bei der Steuerelektronik im Filterkopf kann es sich beispielsweise um eine elektronische Schaltung handeln, durch die der Stator des elektronisch kommutierten Motors angesteuert wird. Die Ansteuerung kann dabei in Abhängigkeit der Rotorposition erfolgen, die mit einer geeigneten Einrichtung, beispielsweise durch Hallsensoren gemessen werden kann.The control electronics in the filter head may be, for example, an electronic circuit by which the stator of the electronically commutated motor is driven. The control can take place in dependence on the rotor position, which can be measured with a suitable device, for example by Hall sensors.

Zur Verbesserung des thermischen Verhaltens ist es bevorzugt, dass der Filterkopf ein Material mit hoher Wärmeleitfähigkeit, beispielsweise ein metallisches Material aufweist. Besonders bevorzugt weist das Material des Filterkopfs eine Wärmeleitfähigkeit von über 100W/mK und insbesondere eine Wärmeleitfähigkeit von über 200 W/mK auf. Bevorzugte Materialien sind beispielsweise Zinkdruckguss mit einer Wärmeleitfähigkeit von ca. 115 W/mK oder Aluminium mit einer Wärmeleitfähigkeit von ca. 237 W/mK. Zusätzlich bzw. alternativ kann der Filterkopf einen Kühlkörper, beispielsweise mit Kühlrippen oder einer anderweitig vergrößerten Kühloberfläche aufweisen. Sofern eine hohe Wärmeleitfähigkeit des Filterkopfs nicht benötigt wird, beispielsweise weil die zu kühlenden Komponenten eine geringe Abwärme erzeugen, kann auch ein Kunststoffmaterial verwendet werden. Bevorzugt handelt es sich hierbei um PA6.6 (melt), das eine Wärmeleitfähigkeit von ca. 0,28 W/mK aufweist,To improve the thermal behavior, it is preferred that the filter head comprises a material with high thermal conductivity, for example a metallic material. Particularly preferably, the material of the filter head has a thermal conductivity of more than 100 W / mK and in particular a thermal conductivity of more than 200 W / mK. Preferred materials are, for example, die-cast zinc with a thermal conductivity of about 115 W / mK or aluminum with a thermal conductivity of about 237 W / mK. Additionally or alternatively, the filter head may have a heat sink, for example with cooling fins or an otherwise enlarged cooling surface. If a high thermal conductivity of the filter head is not needed, for example because the components to be cooled produce a low heat loss, a plastic material can also be used. This is preferably PA6.6 (melt), which has a thermal conductivity of about 0.28 W / mK,

Zur weiteren Verbesserung des thermischen Verhaltens ist es bevorzugt, die Steuerelektronik gut wärmeleitend mit dem Filterkopf zu verbinden. Hierzu kann die Steuerelektronik beispielsweise als eine Platine ausgebildet sein, die eine große Kontaktfläche zu dem Filterkopf aufweist.To further improve the thermal behavior, it is preferable to connect the control electronics with good thermal conductivity to the filter head. For this purpose, the control electronics may be formed, for example, as a circuit board, which has a large contact area to the filter head.

Im Folgenden wird eine bevorzugte Ausführungsform der Erfindung anhand einer Figur erläutert.In the following, a preferred embodiment of the invention will be explained with reference to a figure.

Es zeigt:

Figur 1
eine schematische Ansicht der erfindungsgemäßen Kraftstofffördervorrichtung.
It shows:
FIG. 1
a schematic view of the fuel delivery device according to the invention.

Eine Kraftstofffördervorrichtung 11 zum Fördern von Kraftstoff in Richtung einer nicht dargestellten Brennkraftmaschine weist ein Filtergehäuse 10, einen Filterkopf 12, sowie einen Kraftstofffilter 14 auf. Eine Kraftstoffpumpe 16 mit einem nicht dargestellten elektronisch kommutierten bürstenlosen Motor ist innerhalb des Kraftstofffilters 14 angeordnet. Das Filtergehäuse 10 weist einen Einlass 30 auf, uber den Kraftstoff durch die Kraftstoffpumpe 16 angesaugt wird. Weiterhin ist ein Auslass 32 vorgesehen, über den Kraftstoff durch die Kraftstoffpumpe 16 in Richtung der Brennkraftmaschine gefördert wird. Der Filterkopf 12 kann beispielsweise eine Platine aufweisen, auf der die Steuerelektronik 18 für den elektronisch kommutierten bürstenlosen Motor der Kraftstoffpumpe angeordnet ist. Optional kann auf dieser Platine weiterhin ein elektronischer Drucksensor 20 zur Druckregelung der Kraftstoffpumpe 16 vorgesehen sein. Alternativ kann auch eine mechanische Druckregelung durch einen mechanischen Druckregler stattfinden.A fuel delivery device 11 for conveying fuel in the direction of an internal combustion engine, not shown, has a filter housing 10, a Filter head 12, and a fuel filter 14. A fuel pump 16 with an electronically commutated brushless motor, not shown, is disposed within the fuel filter 14. The filter housing 10 has an inlet 30, via which fuel is sucked in by the fuel pump 16. Furthermore, an outlet 32 is provided, is conveyed via the fuel by the fuel pump 16 in the direction of the internal combustion engine. The filter head 12 may for example have a circuit board on which the control electronics 18 is arranged for the electronically commutated brushless motor of the fuel pump. Optionally, an electronic pressure sensor 20 for pressure control of the fuel pump 16 may be further provided on this board. Alternatively, a mechanical pressure control by a mechanical pressure regulator can take place.

Zur elektrischen Kontaktierung kann die Kraftstofffördervorrichtung eine elektrische Anschlussvorrichtung 26 aufweisen.For electrical contacting, the fuel delivery device may have an electrical connection device 26.

Um die thermischen Eigenschaften der Kraftstofffördervorrichtung zu verbessern, kann der Filterkopf 12 ein metallisches Material aufweisen. Alternativ oder zusätzlich hierzu kann ein Kühlkörper 22 vorgesehen sein. Dieser kann beispielsweise an einem Deckel 24 angebracht sein, der mit dem Filterkopf 12 verbunden ist.In order to improve the thermal properties of the fuel delivery device, the filter head 12 may comprise a metallic material. Alternatively or additionally, a cooling body 22 may be provided. This may for example be attached to a cover 24 which is connected to the filter head 12.

Zu Dichtungszwecken können beispielsweise oberhalb und unterhalb der Kraftstoffpumpe Dichtungen, insbesondere in Form von O-Ringen vorgesehen sein. Diese können beispielsweise zwischen der Kraftstoffpumpe 16 und dem Filtergehäuse 10 oder zwischen dem Kraftstofffilter 14 und dem Filtergehäuse 10 bzw. dem Filterkopf 12 angeordnet sein.For sealing purposes, for example, above and below the fuel pump, seals, in particular in the form of O-rings may be provided. These may be arranged, for example, between the fuel pump 16 and the filter housing 10 or between the fuel filter 14 and the filter housing 10 or the filter head 12.

Insbesondere sind für den Betrieb der erfindungsgemäßen Kraftstofffördervorrichtung keine weiteren elektronischen Komponenten in Form einer Steuervorrichtung notwendig.In particular, no further electronic components in the form of a control device are necessary for the operation of the fuel delivery device according to the invention.

Weiterhin sind für den Betrieb des Drucksensors 20 keine separaten elektrischen Stecker bzw, Gehäuse notwendig.Furthermore, no separate electrical plug or housing are necessary for the operation of the pressure sensor 20.

Claims (7)

Kraftstofffördervorrichtung zum Fördern von Kraftstoff in Richtung einer Brennkraftmaschine, mit
einem Pumpengehäuse (10),
einem mit diesem verbundenen Pumpenkopf (12) und
einer im Pumpengehäuse (10) angeordneten Kraftstoffpumpe (16)
dadurch gekennzeichnet, dass
die Kraftstoffpumpe (16) einen elektronisch kommutierten bürstenlosen Motor aufweist,
wobei eine Steuerelektronik (18) für den elektronisch kommutierten bürstenlosen Motor der Kraftstoffpumpe (16) im und/ oder am Pumpenkopf (12) angeordnet ist.Fuel delivery device for conveying fuel in the direction of an internal combustion engine, with
a pump housing (10),
an associated with this pump head (12) and
a fuel pump (16) arranged in the pump housing (10)
characterized in that
the fuel pump (16) has an electronically commutated brushless motor,
wherein an electronic control unit (18) for the electronically commutated brushless motor of the fuel pump (16) in and / or on the pump head (12) is arranged. Kraftstofffördervorrichtung nach Anspruch 1, gekennzeichnet durch einen Kraftstofffilter (14), der im Pumpengehäuse (10) angeordnet ist.Fuel delivery device according to claim 1, characterized by a fuel filter (14) which is arranged in the pump housing (10). Kraftstofffördervorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass im und/ oder am Pumpenkopf (12) eine Regelelektronik, insbesondere zur Drehzahlregelung des elektronisch kommutierten bürstenlosen Motors der Kraftstoffpumpe (16) angeordnet ist.Fuel delivery device according to claim 1 or 2, characterized in that in and / or on the pump head (12) control electronics, in particular for speed control of the electronically commutated brushless motor of the fuel pump (16) is arranged. Kraftstofffördervorrichtung nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass im oder am Pumpenkopf (12) ein Drucksensor (20) zur Druckregelung der Kraftstoffpumpe (16) angeordnet ist.Fuel delivery device according to one of claims 1 - 3, characterized in that in or on the pump head (12), a pressure sensor (20) for pressure control of the fuel pump (16) is arranged. Kraftstofffördervorrichtung nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass der Pumpenkopf (12) ein Material mit hoher Wärmeleitfähigkeit aufweist.Fuel delivery device according to one of claims 1 - 4, characterized in that the pump head (12) comprises a material with high thermal conductivity. Kraftstofffördervorrichtung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, dass der Pumpenkopf (12) ein metallisches Material aufweist.Fuel delivery device according to one of claims 1-5, characterized in that the pump head (12) comprises a metallic material. Kraftstofffördervorrichtung nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass der Pumpenkopf (12) einen Kühlkörper (22) aufweist.Fuel delivery device according to one of claims 1 - 6, characterized in that the pump head (12) has a cooling body (22).
EP08156792A 2007-06-15 2008-05-23 Fuel pump with electronically commuted motor Not-in-force EP2003322B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007028398A DE102007028398A1 (en) 2007-06-15 2007-06-15 Fuel pump with electronically commutated motor

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EP2003322A2 true EP2003322A2 (en) 2008-12-17
EP2003322A3 EP2003322A3 (en) 2009-04-15
EP2003322B1 EP2003322B1 (en) 2011-12-14

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EP08156792A Not-in-force EP2003322B1 (en) 2007-06-15 2008-05-23 Fuel pump with electronically commuted motor

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US (1) US8157542B2 (en)
EP (1) EP2003322B1 (en)
JP (1) JP2008309156A (en)
KR (1) KR20080110548A (en)
CN (1) CN101324212A (en)
AT (1) ATE537351T1 (en)
BR (1) BRPI0803015A2 (en)
DE (1) DE102007028398A1 (en)
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ES2376498T3 (en) 2012-03-14
US20080310976A1 (en) 2008-12-18
JP2008309156A (en) 2008-12-25
DE102007028398A1 (en) 2008-12-24
CN101324212A (en) 2008-12-17
EP2003322B1 (en) 2011-12-14
EP2003322A3 (en) 2009-04-15
KR20080110548A (en) 2008-12-18
US8157542B2 (en) 2012-04-17
ATE537351T1 (en) 2011-12-15
BRPI0803015A2 (en) 2009-04-22

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