DE102008042066A1 - Gear pump for maintaining fuel injection pump of internal combustion engine, has housing provided with cover, where coating is provided at gear wheel or at drive shaft - Google Patents
Gear pump for maintaining fuel injection pump of internal combustion engine, has housing provided with cover, where coating is provided at gear wheel or at drive shaft Download PDFInfo
- Publication number
- DE102008042066A1 DE102008042066A1 DE200810042066 DE102008042066A DE102008042066A1 DE 102008042066 A1 DE102008042066 A1 DE 102008042066A1 DE 200810042066 DE200810042066 DE 200810042066 DE 102008042066 A DE102008042066 A DE 102008042066A DE 102008042066 A1 DE102008042066 A1 DE 102008042066A1
- Authority
- DE
- Germany
- Prior art keywords
- gear
- housing
- gear pump
- coating
- pump according
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—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
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/22—Manufacture essentially without removing material by sintering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/90—Improving properties of machine parts
- F04C2230/91—Coating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0466—Nickel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/04—PTFE [PolyTetraFluorEthylene]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/12—Polyetheretherketones, e.g. PEEK
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Technisches GebietTechnical area
Die Erfindung geht aus von einer Zahnradpumpe nach der Gattung des Anspruchs 1.The Invention is based on a gear pump according to the preamble of the claim 1.
Stand der TechnikState of the art
Eine
solche Zahnradpumpe ist aus der
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Zahnrandpumpe mit den Merkmalen gemäß Anspruch 1 hat den Vorteil, dass sich der Aufwand bei der Herstellung erheblich vermindert. Dies liegt maßgeblich daran, dass die reibungsvermindernde Beschichtung im Tauchverfahren aufgebracht wird und dass der sich dabei ergebende der Anteil der mit einer reibungsvermindernden Beschichtung zu versehenden Flächen bezogen auf die unvermeidbar zugleich mit beschichteten Flächen, die während der bestimmungsgemäßen Verwendung einer Zahnradpumpe einer Reibungsbeanspruchung überhaupt nicht ausgesetzt sind, wesentlich vermindert. Bei dem Gehäuse und dem Deckel sind dies z. B. alle nach außen weisenden Oberflächen. Der sich bei der Herstellung ergebende Verbrauch an reibungsvermindernden Stoffen ist dadurch sehr viel kleiner als bei der Zahnrandpumpe nach dem Stand der Technik. Überraschender Weise wird dennoch ein ähnlich gutes Lauf- und Verschleißverhalten erzielt wie bei den Zahnradpumpen nach dem Stand der Technik.The Inventive rim pump with the features according to claim 1 has the advantage that the Expenditure in the production significantly reduced. This is decisive Remember that the friction-reducing coating in the dipping process is applied and that the resulting the proportion of with a friction-reducing coating surfaces to be provided based on the unavoidable at the same time coated surfaces, during the intended use a gear pump of a frictional stress at all are not exposed, significantly reduced. In the case and the lid are z. B. all facing outward Surfaces. The resulting in the production consumption At Reibvermindernden substances is thereby much smaller than in the toothed edge pump according to the prior art. surprisingly Way is still a similar good running and wear behavior achieved as in the gear pumps of the prior art.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Vorrichtung angegeben.In the dependent claims are advantageous embodiments and further developments of the device according to the invention specified.
Durch die Ausgestaltung nach Anspruch 2 Lässt sich die bei einer Verwendung in Kraftfahrzeugen erwünschte Korrosionsfestigkeit auf einfache Weise erzeugen.By the embodiment according to claim 2 Can be at a Use in motor vehicles desired corrosion resistance create easily.
Die Ausgestaltung nach Anspruch 3 hat den Vorteil, dass sich der Deckel und das Gehäuse der Zahnradpumpe kostengünstig und mit hoher Maßhaltigkeit erzeugen lassen.The Embodiment according to claim 3 has the advantage that the lid and the housing of the gear pump cost and produce with high dimensional accuracy.
Die Ausgestaltung nach Anspruch 4 hat den Vorteil, dass sich das wenigstens eine Zahnrad mit hoher Maßhaltigkeit kostengünstig erzeugen lässt.The Embodiment according to claim 4 has the advantage that at least a gear with high dimensional accuracy cost can generate.
Die Ausgestaltung nach Anspruch 5 hat den Vorteil, dass die Antriebswelle nicht unbedingt einen Bestandteil der Zahnrandpumpe bilden muss. Es ist vielmehr auch möglich, eine rotierende Sekundärwelle zum Antrieb des wenigstens einen Zahnrades zu verwenden.The Embodiment according to claim 5 has the advantage that the drive shaft not necessarily form part of the Zahnrandpumpe. It is also possible, a rotating secondary shaft to use to drive the at least one gear.
Die Ausgestaltung nach den Ansprüchen 6 und 7 hat den Vorteil, einen besonders guten Dauerhaftigkeit. Außerdem hat eine solcher Art erzeugte Beschichtung den Vorteil, dass die geschliffene und/oder geglättete Oberfläche stark von Mikroporen durchsetzt ist, in die sich reibungsvermindernde Schmierstoffe einlagern können. Die Notlaufeigenschaften werden dadurch verbessert.The Embodiment according to claims 6 and 7 has the advantage a particularly good durability. Besides, one has coating produced in such a way has the advantage that the ground and / or Smoothed surface strongly interspersed by micropores is, in which friction-reducing lubricants can be stored. The emergency running properties are thereby improved.
Die Ausgestaltung nach Anspruch 8 hat den Vorteil besonders guter Gleiteigenschaften in Verbindung mit einer schnellen und kostengünstigen Aufbringbarkeit der reibungsvermindernden Beschichtung.The Embodiment according to claim 8 has the advantage of particularly good sliding properties in conjunction with a quick and cost-effective applicability the friction-reducing coating.
Die Ausgestaltung nach Anspruch 9 hat den Vorteil, dass die Lagerung beider Zahnräder weitgehend unabhängig von der Lagerung der Antriebswelle ist. Die Antriebswelle kann daher nachträglich eingefügt und gegebenenfalls auch ersetzt werden, ohne die gesamte Zahnradpumpe zu zerlegen.The Embodiment according to claim 9 has the advantage that the storage Both gears largely independent of the Storage of the drive shaft is. The drive shaft can therefore be retrofitted inserted and, where appropriate, replaced, without to disassemble the entire gear pump.
Die Ausgestaltung nach Anspruch 9 hat den Vorteil, dass die Lagerung der Zahnräder bildenden Achsstummel zusammen mit dem Gehäuse bzw. dem Deckel in einem einzigen Arbeitsschritt erzeugt werden können, beispielsweise im Druckgießverfahren.The Embodiment according to claim 9 has the advantage that the storage the gear forming stub axle together with the housing or the lid are produced in a single step can, for example in die casting.
Zeichnungdrawing
Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Several Embodiments of the invention are in the drawing shown and in the following description in more detail explained. Show it:
Beschreibung des AusführungsbeispielsDescription of the embodiment
Die
in
Das mindestens eine Zahnrad und die Welle sind durch die Beschichtung in Bezug auf das Gehäuse und/oder den Deckel leicht verdrehbar. Ein Festfressen oder erhöhter Verschleiß wurden auch in Dauertests überraschend nicht beobachtet. Außerdem lässt sich die Beschichtung mit großer Maßhaltigkeit problemlos erzeugen und damit eine gute Pumpenleistung erhalten, ohne dass es besonderen Aufwandes bedarf.The At least one gear and the shaft are through the coating slightly rotatable with respect to the housing and / or the lid. A seizure or increased wear were surprisingly not observed even in endurance tests. Furthermore can the coating with great dimensional accuracy produce easily and thus obtain a good pump performance, without the need for special effort.
Der
Deckel
Das
mindestens eine Zahnrad
Das
mindestens eine Zahnrad
Die
Beschichtung
Bei
der Bauform nach
Auf
den einander zugewandten Seiten greifen die Zähne der beiden
Zahnräder
Die
Achsstummel
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 1010250554 A1 [0002] - DE 1010250554 A1 [0002]
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810042066 DE102008042066A1 (en) | 2008-09-12 | 2008-09-12 | Gear pump for maintaining fuel injection pump of internal combustion engine, has housing provided with cover, where coating is provided at gear wheel or at drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810042066 DE102008042066A1 (en) | 2008-09-12 | 2008-09-12 | Gear pump for maintaining fuel injection pump of internal combustion engine, has housing provided with cover, where coating is provided at gear wheel or at drive shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008042066A1 true DE102008042066A1 (en) | 2010-03-18 |
Family
ID=41667637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200810042066 Withdrawn DE102008042066A1 (en) | 2008-09-12 | 2008-09-12 | Gear pump for maintaining fuel injection pump of internal combustion engine, has housing provided with cover, where coating is provided at gear wheel or at drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008042066A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010021240A1 (en) * | 2010-05-21 | 2011-11-24 | Oerlikon Leybold Vacuum Gmbh | Method for surface treatment of pumping elements or pump chamber inner walls of vacuum pump, involves flushing pump chamber with dispersion medium which is deposited on pump chamber inner walls or surfaces of pump elements |
| DE102010031614A1 (en) | 2010-07-21 | 2012-01-26 | Robert Bosch Gmbh | Gear pump for feeding fuel into fuel injection system, particularly in common-rail system of internal combustion engine, comprises shaft assembly, which lies from drive shaft and gear wheel driven by drive shaft |
| DE102010038893A1 (en) | 2010-08-04 | 2012-02-09 | Robert Bosch Gmbh | Fuel pump for supplying fuel in fuel injection system, has drive wheel that is propelled by drive shaft, where drive wheel is mounted on bearing pin by friction bearing |
| DE102016204199A1 (en) | 2016-03-15 | 2017-09-21 | Robert Bosch Gmbh | Gear pump for a waste heat recovery system |
| DE102017203003A1 (en) * | 2017-02-24 | 2018-08-30 | Robert Bosch Gmbh | External gear pump for a waste heat recovery system |
| WO2018153605A1 (en) | 2017-02-24 | 2018-08-30 | Robert Bosch Gmbh | Gear pump for a waste heat recovery system |
| EP3597918A1 (en) * | 2018-07-17 | 2020-01-22 | Hamilton Sundstrand Corporation | Cavitation resistant gear driven fuel pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10250554A1 (en) | 2002-10-30 | 2004-05-19 | Robert Bosch Gmbh | Device with a housing and with at least one rotating component arranged in the housing |
-
2008
- 2008-09-12 DE DE200810042066 patent/DE102008042066A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10250554A1 (en) | 2002-10-30 | 2004-05-19 | Robert Bosch Gmbh | Device with a housing and with at least one rotating component arranged in the housing |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010021240A1 (en) * | 2010-05-21 | 2011-11-24 | Oerlikon Leybold Vacuum Gmbh | Method for surface treatment of pumping elements or pump chamber inner walls of vacuum pump, involves flushing pump chamber with dispersion medium which is deposited on pump chamber inner walls or surfaces of pump elements |
| DE102010031614A1 (en) | 2010-07-21 | 2012-01-26 | Robert Bosch Gmbh | Gear pump for feeding fuel into fuel injection system, particularly in common-rail system of internal combustion engine, comprises shaft assembly, which lies from drive shaft and gear wheel driven by drive shaft |
| DE102010038893A1 (en) | 2010-08-04 | 2012-02-09 | Robert Bosch Gmbh | Fuel pump for supplying fuel in fuel injection system, has drive wheel that is propelled by drive shaft, where drive wheel is mounted on bearing pin by friction bearing |
| DE102016204199A1 (en) | 2016-03-15 | 2017-09-21 | Robert Bosch Gmbh | Gear pump for a waste heat recovery system |
| DE102017203003A1 (en) * | 2017-02-24 | 2018-08-30 | Robert Bosch Gmbh | External gear pump for a waste heat recovery system |
| WO2018153605A1 (en) | 2017-02-24 | 2018-08-30 | Robert Bosch Gmbh | Gear pump for a waste heat recovery system |
| DE102017203004A1 (en) * | 2017-02-24 | 2018-08-30 | Robert Bosch Gmbh | Gear pump for a waste heat recovery system |
| EP3597918A1 (en) * | 2018-07-17 | 2020-01-22 | Hamilton Sundstrand Corporation | Cavitation resistant gear driven fuel pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R012 | Request for examination validly filed | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |