DE10228551A1 - Radial piston pump - Google Patents
Radial piston pump Download PDFInfo
- Publication number
- DE10228551A1 DE10228551A1 DE10228551A DE10228551A DE10228551A1 DE 10228551 A1 DE10228551 A1 DE 10228551A1 DE 10228551 A DE10228551 A DE 10228551A DE 10228551 A DE10228551 A DE 10228551A DE 10228551 A1 DE10228551 A1 DE 10228551A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- radial piston
- pressure
- pump housing
- piston pump
- 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- Withdrawn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
- 239000000446 fuel Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
- F04B23/103—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being a radial piston pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Radialkolbenpumpeneinheit für ein Hochdruckeinspritzsystem mit einem Pumpengehäuse (1), in dem eine Antriebswelle (2) mit einem Exzenterabschnitt (3) gelagert ist, auf dem ein Hubring (4) sitzt, der mindestens einen in radialer Richtung zur Antriebsachse (2) bewegbaren, federbelasteten Kolben (5) bewegt und die einen Kraftstoffhochdruckspeicher (41) aufweist, der im Pumpengehäuse (1) integriert ist.Radial piston pump unit for a high-pressure injection system with a pump housing (1), in which a drive shaft (2) with an eccentric section (3) is mounted, on which a cam ring (4) is seated, which has at least one spring-loaded, movable in the radial direction to the drive axis (2) Piston (5) moves and which has a high-pressure fuel reservoir (41) which is integrated in the pump housing (1).
Description
Die Erfindung betrifft eine Radialkolbenpumpeneinheit zur Kraftstoffhochdruckerzeugung bei Kraftstoffeinspritzsystemen von Brennkraftmaschinen, insbesondere bei einem Common Rail Einspritzsystem.The invention relates to a radial piston pump unit for generating high-pressure fuel in fuel injection systems of internal combustion engines, especially in a common rail injection system.
Aufgrund der begrenzten Platzverhältnisse im Motorraum ist es notwendig, die Kraftstoffhochdruckpumpe möglichst kompakt zu gestalten und die Kraftstoffhochdruckpumpe räumlich möglichst nah am Hochdruckspeicher anzuordnen.Due to the limited space in the Engine compartment, it is necessary to use the high pressure fuel pump as possible compact design and the high-pressure fuel pump spatially as possible to be placed close to the high pressure accumulator.
Die Aufgabe der Erfindung ist es, eine Radialkolbenpumpeneinheit für Hochdruckeinspritzsysteme bereit zu stellen, die eine sehr kompakte Bauweise aufweist und eine enge räumliche Anordnung des Hochdruckspeicher am Pumpengehäuse ermöglicht.The object of the invention is a radial piston pump unit for To provide high pressure injection systems that are very compact Has construction and a close spatial arrangement of the high pressure accumulator on the pump housing allows.
Die Aufgabe wird gelöst durch die Merkmale des unabhängigen Patentanspruchs. Vorteilhafte Ausgestaltung der Erfindung sind in den Unteransprüchen gekennzeichnet.The task is solved by the characteristics of the independent Claim. Advantageous embodiments of the invention are shown in the subclaims characterized.
Die Erfindung zeichnet sich dadurch aus, dass das Hochdruckspeichervolumen im Pumpengehäuse integriert ist. Hierdurch ergibt sich eine sehr kompakte Anordnung der Bauteile. Darüber hinaus hat die enge räumliche Anordnung von Radialkolbenpumpeneinheit und Hochdruckspeicher den Vorteil, das die Länge der Hochdruckleitungen reduziert werden kann.The invention is characterized by this that the high-pressure storage volume is integrated in the pump housing is. This results in a very compact arrangement of the components. About that also has the narrow spatial Arrangement of the radial piston pump unit and the high pressure accumulator Advantage that the length the high pressure lines can be reduced.
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, in den Hochdruckspeicher ein Druckregelventil zu integrieren wodurch sich eine noch kompaktere Ausgestaltung ergibt. Zudem kann die Hochdruckleitung vom Druckregelventil zum Hochdruckspeicher entfallen.A preferred embodiment of the The invention provides for a pressure control valve in the high-pressure accumulator to integrate, resulting in an even more compact design. In addition, the high pressure line from the pressure control valve to the high pressure accumulator omitted.
Eine weitere bevorzugte Ausgestaltung der Erfindung sieht vor den Hochdruckspeicher an seinem äußeren Bereich mit ebenen Flächen zu versehen. Die ebenen Flächen können besonders Vorteilhaft zur Aufnahme der dienen.Another preferred embodiment The invention provides for the high-pressure accumulator on its outer area with flat surfaces to provide. The flat surfaces can particularly advantageous for receiving the serve.
Ausführungsbeispiele der Erfindung werden im folgenden anhand der schematischen Zeichnungen erläutert. Es zeigt:Embodiments of the invention are explained below with reference to the schematic drawings. It shows:
Die beiden Schnitte liegen jeweils senkrecht zur Wellenachse, sind jedoch in einem bestimmten Winkel zueinander verschoben. Dies ist notwendig, da die einzelnen Bauteile der Radialkolbenpumpeneinheit auf dem Umfang verteilt sind und nur so alle Bauteile dargestellt werden können.The two cuts are each perpendicular to the shaft axis, but are at a certain angle shifted to each other. This is necessary because the individual components the radial piston pump unit are distributed on the circumference and only so all components can be displayed.
Eine Antriebswelle
Das Pumpengehäuse
Der Kraftstoff tritt dabei durch
den Kraftstoff-Zulaufanschluss
Jedem Pumpenkolben
Der Topfdeckel
Die Steuerscheibe
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10228551A DE10228551A1 (en) | 2002-06-26 | 2002-06-26 | Radial piston pump |
| PCT/DE2003/002015 WO2004003382A1 (en) | 2002-06-26 | 2003-06-16 | Radial piston pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10228551A DE10228551A1 (en) | 2002-06-26 | 2002-06-26 | Radial piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10228551A1 true DE10228551A1 (en) | 2004-01-22 |
Family
ID=29761428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10228551A Withdrawn DE10228551A1 (en) | 2002-06-26 | 2002-06-26 | Radial piston pump |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10228551A1 (en) |
| WO (1) | WO2004003382A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10349310B3 (en) * | 2003-10-23 | 2005-05-19 | Siemens Ag | Radial piston pump for Common Rail injection systems |
| DE10360534B4 (en) * | 2003-12-22 | 2007-06-06 | Siemens Ag | High-pressure fuel pump for common-rail injection systems |
| WO2010015436A1 (en) * | 2008-08-04 | 2010-02-11 | Robert Bosch Gmbh | High-pressure fuel pump |
| EP1582739A3 (en) * | 2004-03-29 | 2010-06-30 | Continental Automotive GmbH | Radial piston pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546912A (en) * | 1993-12-14 | 1996-08-20 | Yamaha Hatsudoki Kabushiki Kaisha | Fuel supply device |
| JPH11294292A (en) * | 1998-04-15 | 1999-10-26 | Denso Corp | Accumulator type fuel injection device |
| DE19848035A1 (en) * | 1998-10-17 | 2000-04-20 | Bosch Gmbh Robert | Radial piston pump for high fuel pressure in IC engines with common-rail injection system has suction valve closure spring supported on pump piston and contained in long piston bore |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2766240B1 (en) * | 1997-07-18 | 1999-09-10 | Renault | INJECTOR SUPPLY CIRCUIT COMPRISING A BUFFER VOLUME ASSOCIATED WITH THE INJECTION PUMP |
| US6186118B1 (en) * | 1999-11-10 | 2001-02-13 | Delphi Technologies, Inc. | Integrated fuel rail and direct injection fuel pump |
-
2002
- 2002-06-26 DE DE10228551A patent/DE10228551A1/en not_active Withdrawn
-
2003
- 2003-06-16 WO PCT/DE2003/002015 patent/WO2004003382A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546912A (en) * | 1993-12-14 | 1996-08-20 | Yamaha Hatsudoki Kabushiki Kaisha | Fuel supply device |
| JPH11294292A (en) * | 1998-04-15 | 1999-10-26 | Denso Corp | Accumulator type fuel injection device |
| DE19848035A1 (en) * | 1998-10-17 | 2000-04-20 | Bosch Gmbh Robert | Radial piston pump for high fuel pressure in IC engines with common-rail injection system has suction valve closure spring supported on pump piston and contained in long piston bore |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10349310B3 (en) * | 2003-10-23 | 2005-05-19 | Siemens Ag | Radial piston pump for Common Rail injection systems |
| US7647918B2 (en) | 2003-10-23 | 2010-01-19 | Siemens Aktiengesellschaft | Radial piston pump for common rail injection systems |
| DE10360534B4 (en) * | 2003-12-22 | 2007-06-06 | Siemens Ag | High-pressure fuel pump for common-rail injection systems |
| EP1582739A3 (en) * | 2004-03-29 | 2010-06-30 | Continental Automotive GmbH | Radial piston pump |
| WO2010015436A1 (en) * | 2008-08-04 | 2010-02-11 | Robert Bosch Gmbh | High-pressure fuel pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004003382A1 (en) | 2004-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8130 | Withdrawal |