DE102009029622A1 - Feed pump, particularly pre-feed pump of fuel injection system, has pumping unit placed in pump housing and operated by power electronic, where pumping unit intakes liquid from feed channel and supplies to outlet channel - Google Patents
Feed pump, particularly pre-feed pump of fuel injection system, has pumping unit placed in pump housing and operated by power electronic, where pumping unit intakes liquid from feed channel and supplies to outlet channel Download PDFInfo
- Publication number
- DE102009029622A1 DE102009029622A1 DE102009029622A DE102009029622A DE102009029622A1 DE 102009029622 A1 DE102009029622 A1 DE 102009029622A1 DE 102009029622 A DE102009029622 A DE 102009029622A DE 102009029622 A DE102009029622 A DE 102009029622A DE 102009029622 A1 DE102009029622 A1 DE 102009029622A1
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- Germany
- Prior art keywords
- components
- feed pump
- pump
- channel
- feed
- 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.)
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Classifications
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- 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
- F02M37/041—Arrangements for driving gear-type pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
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- 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
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/1044—Fuel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Förderpumpe, insbesondere Vorförderpumpe eines Kraftstoffeinspritzsystems, umfassend in einem Pumpengehäuse platzierte und mittels einer Leistungselektronik betriebene Pumpenmittel, welche Fluid aus einem Zulaufkanal ansaugen und in einen Ablaufkanal fördern, wobei das geförderte Fluid Komponenten der Leistungselektronik kühlt.The invention relates to a feed pump, in particular prefeed pump of a fuel injection system comprising pump means located in a pump housing and powered by a power electronics pump means which suck fluid from an inlet channel and convey into a flow channel, wherein the pumped fluid cools components of the power electronics.
Aus der
Ausgehend von einer Förderpumpe des Standes der Technik ist es die Aufgabe der vorliegenden Erfindung, eine Förderpumpe, insbesondere eine Vorförderpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine, zur Verfügung zu stellen, bei welcher eine Kühlung von Komponenten einer Leistungselektronik mit einem möglichst geringem fertigungstechnischen Aufwand und geringem Platzbedarf verwirklicht werden kann.Starting from a feed pump of the prior art, it is the object of the present invention to provide a feed pump, in particular a prefeed pump for a fuel injection system of an internal combustion engine, in which a cooling of components of a power electronics with the least possible manufacturing effort and small footprint can be realized.
Offenbarung der ErfindungDisclosure of the invention
Diese Aufgabe wird ausgehend vom Oberbegriff des Anspruchs 1 in Verbindung mit dessen kennzeichnenden Merkmalen gelöst. Die darauffolgenden, abhängigen Ansprüche geben jeweils vorteilhafte Weiterbildungen der Erfindung wieder.This object is achieved on the basis of the preamble of
Die Erfindung umfasst die technische Lehre, dass die Komponenten der Leistungselektronik unmittelbar an dem Pumpengehäuse angebracht oder direkt in das Pumpengehäuse integriert sind. Durch die Verlegung der Komponenten der Leistungselektronik in diesen Bereich kann eine Kühlung der Komponenten durch das Fluid mittelbar über das Pumpengehäuse, ohne zusätzliche Kanäle erfolgen. Im Gegensatz hierzu müssen bei einer Förderpumpe des Standes der Technik die entsprechenden Kanäle zusätzlich in dem Pumpengehäuse und dem Elektronikgehäuse ausgebildet werden, um Fluid aus dem Pumpeninnenraum zu der, in axialer Richtung hinter dem Pumpenmittel liegenden Leistungselektronik zu fördern. Dies resultiert in einer aufwendigen Gestaltung des Pumpengehäuses, sowie des Elektronikgehäuses und somit auch in einem entsprechenden herstellungstechnischen Aufwand beim Fertigen der Gehäuse. Des Weiteren erfordern diese zusätzlichen Kanäle einen entsprechenden Bauraum in den jeweiligen Gehäusen.The invention includes the technical teaching that the components of the power electronics are mounted directly on the pump housing or integrated directly into the pump housing. By laying the components of the power electronics in this area, a cooling of the components by the fluid can be done indirectly via the pump housing, without additional channels. In contrast, in a prior art feed pump, the respective channels must be additionally formed in the pump housing and the electronics housing to deliver fluid from the pump interior to the power electronics located in the axial direction behind the pump means. This results in a complex design of the pump housing, as well as the electronics housing and thus in a corresponding manufacturing effort in the manufacture of the housing. Furthermore, these additional channels require a corresponding space in the respective housings.
In Weiterbildung der Erfindung sind die Komponenten der Leistungselektronik unmittelbar an dem Zulaufkanal oder dem Ablaufkanal angeordnet. Mittels einer derartigen Gestaltung kann die Kühlung der Komponenten der Leistungselektronik deutlich verbessert werden, indem diese näher an das, im Zulaufkanal bzw. Ablaufkanal strömende Fluid herangeführt werden.In a development of the invention, the components of the power electronics are arranged directly on the inlet channel or the outlet channel. By means of such a design, the cooling of the components of the power electronics can be significantly improved by these are brought closer to the flowing in the inlet channel or drainage fluid.
Gemäß einer Ausführungsform der Erfindung sind die Komponenten in einer Nische des jeweiligen Kanals platziert, wobei die Komponenten derart von einer Dichtung umgeben sind, dass nur Kühlkörper unmittelbar mit dem vorströmenden Fluid in Kontakt treten. Dadurch, dass die Kühlkörper der Komponenten somit unmittelbar in das vorbeiströmende Fluid hineinragen, kann eine optimale Kühlung der Leistungselektronik erreicht werden. Gleichzeitig wird hierbei eine eventuelle Beeinträchtigung der Leistungselektronik durch ein elektrisch leitendes Fluid oder elektrisch leitende, mit gespülte Partikel durch die umgebende Dichtung ausgeschlossen.According to one embodiment of the invention, the components are placed in a niche of the respective channel, the components being surrounded by a seal in such a way that only heat sinks directly contact the inflowing fluid. The fact that the heat sink of the components thus protrude directly into the fluid flowing past, optimal cooling of the power electronics can be achieved. At the same time a possible impairment of the power electronics is excluded by an electrically conductive fluid or electrically conductive, with purged particles through the surrounding seal.
In Weiterbildung der Erfindung ist die Dichtung durch vergossenes Kunstharz gebildet. Dies hat den Vorteil, dass mit niedrigem Aufwand eine sichere und optimal an die jeweiligen Platzverhältnisse anpassbare Dichtung realisiert werden kann.In a further development of the invention, the seal is formed by encapsulated synthetic resin. This has the advantage that with low effort a secure and optimally adaptable to the particular space conditions seal can be realized.
Entsprechend einer alternativen Ausführungsform der Erfindung sind die Komponenten in einer, zu dem jeweiligen Kanal benachbart liegenden Kammer platziert, wobei zwischen den Komponenten und dem jeweiligen Kanal eine Wand eingezogen ist. Eine derartige Ausgestaltung hat hierbei den Vorteil, dass die Komponeten somit wirksam von dem Fluid abgekapselt sind, gleichzeitig aber ein guter Wärmeeintrag in das Fluid und damit auch eine gute Wärmeabfuhr möglich ist.According to an alternative embodiment of the invention, the components are placed in a chamber adjacent to the respective channel, wherein a wall is retracted between the components and the respective channel. Such a design has the advantage that the components are thus effectively encapsulated by the fluid, but at the same time a good heat input into the fluid and thus a good heat dissipation is possible.
Zweckmäßigerweise ist hierbei in die Kammer eine wärmeleitende Masse eingebracht. Durch diese Maßnahme wird somit die Wärmeübertragung von den Komponenten der Leistungselektronik in die Wand und von dieser in das vorbeiströmende Fluid deutlich gesteigert.Conveniently, in this case a thermally conductive mass is introduced into the chamber. By this measure, thus, the heat transfer from the components of the power electronics in the Wall and from this in the flowing fluid significantly increased.
Es ist eine weitere, vorteilhafte Ausführungsform der Erfindung, dass die Komponenten der Leistungselektronik durch Bauteile einer Regelelektronik und Kühlkörper gebildet sind, welche auf einer Platine platziert sind. Vorteilhafterweise ist hierdurch eine platzsparende Anordnung der Komponenten der Leistungselektronik möglich.It is a further, advantageous embodiment of the invention that the components of the power electronics are formed by components of a control electronics and heat sink, which are placed on a circuit board. Advantageously, this makes possible a space-saving arrangement of the components of the power electronics.
In Weiterbildung der Erfindung liegen die Pumpenmittel in Form von miteinander kämmenden Zahnrädern vor. Mittels einer derartigen Ausgestaltung lässt sich eine sehr kompaktbauende und robuste Förderpumpe darstellen, welche insbesondere für den Einsatz im Bereich eines Kraftstoffeinspritzsystems einer Brennkraftmaschine geeignet ist.In a further development of the invention, the pump means are in the form of intermeshing gears. By means of such a configuration, a very compact and robust delivery pump can be represented, which is particularly suitable for use in the area of a fuel injection system of an internal combustion engine.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung bevorzugter Ausführungsformen der Erfindung anhand von Figuren näher dargstellt.Further measures improving the invention will be described in more detail below together with the description of preferred embodiments of the invention with reference to figures.
Es zeigen:Show it:
Ausführungsformen der ErfindungEmbodiments of the invention
In
Als Besonderheit sind die Komponenten
In
Mittels der erfindungsgemäßen Gestaltung einer Förderpumpe kann durch die optimale Kühlung der Komponenten
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10013042 A1 [0002] DE 10013042 A1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009029622A DE102009029622A1 (en) | 2009-09-21 | 2009-09-21 | Feed pump, particularly pre-feed pump of fuel injection system, has pumping unit placed in pump housing and operated by power electronic, where pumping unit intakes liquid from feed channel and supplies to outlet channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009029622A DE102009029622A1 (en) | 2009-09-21 | 2009-09-21 | Feed pump, particularly pre-feed pump of fuel injection system, has pumping unit placed in pump housing and operated by power electronic, where pumping unit intakes liquid from feed channel and supplies to outlet channel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009029622A1 true DE102009029622A1 (en) | 2011-03-24 |
Family
ID=43603162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009029622A Withdrawn DE102009029622A1 (en) | 2009-09-21 | 2009-09-21 | Feed pump, particularly pre-feed pump of fuel injection system, has pumping unit placed in pump housing and operated by power electronic, where pumping unit intakes liquid from feed channel and supplies to outlet channel |
Country Status (1)
Country | Link |
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DE (1) | DE102009029622A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102588169A (en) * | 2012-02-11 | 2012-07-18 | 中北大学 | Fuel supply pump system with cooling function |
WO2023227616A1 (en) * | 2022-05-25 | 2023-11-30 | Sogefi Air & Cooling | Fluid circulation module having at least two pumps and cooling system having at least one such module |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10013042A1 (en) | 2000-03-17 | 2001-09-20 | Wilo Gmbh | Centrifugal pump with cooled electronics unit |
-
2009
- 2009-09-21 DE DE102009029622A patent/DE102009029622A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10013042A1 (en) | 2000-03-17 | 2001-09-20 | Wilo Gmbh | Centrifugal pump with cooled electronics unit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102588169A (en) * | 2012-02-11 | 2012-07-18 | 中北大学 | Fuel supply pump system with cooling function |
WO2023227616A1 (en) * | 2022-05-25 | 2023-11-30 | Sogefi Air & Cooling | Fluid circulation module having at least two pumps and cooling system having at least one such module |
FR3136127A1 (en) * | 2022-05-25 | 2023-12-01 | Sogefi Air & Cooling | Fluid circulation module with at least two pumps and cooling system comprising at least one such module |
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Date | Code | Title | Description |
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R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |