EP1582739A2 - Radialkolbenpumpe - Google Patents
Radialkolbenpumpe Download PDFInfo
- Publication number
- EP1582739A2 EP1582739A2 EP05101669A EP05101669A EP1582739A2 EP 1582739 A2 EP1582739 A2 EP 1582739A2 EP 05101669 A EP05101669 A EP 05101669A EP 05101669 A EP05101669 A EP 05101669A EP 1582739 A2 EP1582739 A2 EP 1582739A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- pump
- radial piston
- 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- Withdrawn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
Images
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
- 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
- F04B1/0421—Cylinders
Definitions
- the invention relates to a radial piston pump, in particular Radial piston pump for high-pressure fuel production, after the preamble of claim 1.
- a radial piston pump for High-pressure fuel supply known, which is a pump housing and a plurality of cylinder heads formed as cylinder inserts having. Each cylinder insert lies with a flat contact surface on a flat contact surface of the pump housing and is fixed via a spigot in the pump housing.
- a first fuel supply line and a first Kraftstoffab2020 threaten formed in the level contact surface of the pump housing opens.
- the cylinder head has a second fuel supply line and a second Fuel discharge line, which in the flat contact surface of the cylinder head open.
- the fuel supply lines and the Kraftstoffabrios threatenen the pump housing and of the cylinder head are aligned with each other within the plant level.
- the cylinder head with the pump housing screwed by screws screwed by screws.
- the screws are arranged at the edge of the cylinder head.
- Support rings used.
- Such a solution has the disadvantage that the support rings only up to certain pressures safely work and that it is comparatively expensive since special materials must be used.
- the object of the invention is therefore to provide a radial piston pump form, in the case of a secure seal between the pump housing and pump cylinder is guaranteed.
- the invention is based on the generic radial piston pump due to the fact that the pump housing and the pump cylinder are integrally formed with each other.
- the one-piece Training also known as monobloc design is, the sealing points between the pump housing and the pump cylinder avoided from the outset, so no Leaks can occur.
- a high-pressure accumulator is preferred in the pump housing integrated.
- the number of high-pressure sealing points is further diminished, as no additional Conduit elements between the radial piston pump and the high-pressure accumulator necessary.
- the high-pressure accumulator within the radial piston pump a particularly compact design of radial piston pump and High-pressure storage are possible.
- a preferred embodiment of the invention provides that the high pressure accumulator has a high pressure seal and that the high-pressure seal inside the pump housing is arranged.
- the internal arrangement of the high pressure seal ensures even with a leak, that no fuel in the environment, but at most in the Pump housing can get.
- a further preferred embodiment of the invention sees before that the high-pressure accumulator via hydraulic lines hydraulic to at least one high-pressure outlet of the high-pressure fuel pump is connected in parallel.
- the high-pressure accumulator via hydraulic lines hydraulic to at least one high-pressure outlet of the high-pressure fuel pump is connected in parallel.
- the high-pressure accumulator acts the high-pressure accumulator as a hydraulic damper. hereby can the pulsation due to design of radial piston pumps be significantly reduced in the liquid delivery.
- Throttle in particular diaphragms
- the throttles work also pulsationsdämpfend and thus provide for a more uniform fluid delivery.
- all high-pressure lines are preferred for pressure generation, print forwarding, pressure storage and Pressure distribution to the individual high-pressure outputs in the pump housing educated.
- FIG. 1 shows a radial section through an inventive device Radial piston pump 1.
- the cutting plane lies in one Level with the high-pressure lines 13.
- the radial piston pump 1 comprises a pump housing 2 and two pump cylinders 7, 17, which are formed integrally with the pump housing 2.
- the one-piece design eliminates a seal between the pump cylinders 7, 17 and the pump housing 2.
- a high-pressure accumulator 4 is integrated in the pump housing 2.
- Pump pumps 20, 21 are in the pump cylinders 7, 17 arranged to move back and forth.
- the pump piston 20, 21 and the high-pressure accumulator 4 are in one to the cutting plane further past radial plane and are therefore dashed shown.
- the high-pressure accumulator 4 is disposed between the two pump cylinders 7, 17 and forms an angular distance of 45 ° to each pump unit 7, 17.
- the radial piston pump 1 is of a camshaft 3, the rotatably disposed in the pump housing 2, driven.
- the Camshaft 3 has two mutually opposite cams 15, 16 on.
- the individual pump pistons 20, 21 are directly driven by the camshaft 3. It is, too possible that the stroke transmission takes place via roller tappets.
- the roller tappets offer the advantage that the camshaft with very steep ramps can be formed. In addition minimized the wear caused by the use of roller tappets. Instead of A camshaft is also the use of an eccentric shaft possible.
- the high-pressure accumulator 4 is through a radial bore 8 in Pump housing 2 is formed.
- the radial bore 8 is doing from the high-pressure accumulator 4 opposite side in the pump housing 2 introduced.
- the radial bore 8 is thus designed as a blind hole. She is at a right angle to the axis of the bearing bore 9 for the camshaft 3 in the Pump housing 2 introduced.
- the high-pressure accumulator 4 is on closed at its lower end with a high-pressure seal 5.
- a high-pressure seal 5 is preferably suitable a threaded plug which is screwed into the radial bore 8 becomes.
- the radial bore 8 a corresponding Thread on.
- the radial bore 8 is at its open end 10 closed with another stopper 11, so that the pump housing 2 is sealed to the environment.
- This seal is only one Low pressure seal towards the inside of the pump. At this low pressure seal much lower requirements are made as to the high pressure seal 5.
- the High-pressure seal 5 has a leak passes the liquid does not enter the environment as in the prior art, but only in the radial bore 8 and thus in the pump interior.
- the low pressure seal prevents that the leakage flow from the pump interior to the Environment can reach. This results in a secure seal the high-pressure accumulator 4
- the high-pressure outlets 12 of the individual pump cylinders 7, 17 are on high pressure lines 13 on the one hand with the high pressure connections 6 and the other with the high-pressure accumulator. 4 connected. By the parallel connection of the high pressure outputs 6 with the high-pressure accumulator 4, this acts as a hydraulic Damper.
- the high-pressure accumulator thus ensures pulsation damping and thus allows a more even promotion the radial piston pump. 1
- the injector lines which are not shown in Figure 1 are, directly. without additional adapter parts like For example, double nipple connected to the high-pressure pump 1 become. This results in an advantageous manner a particularly secure seal between the pump housing 2 and the injector lines.
- an additional throttle 14 may be formed.
- a throttle 14 is particularly suitable for a simple aperture, the in the high-pressure outlet is introduced.
- the aperture 14 can open simple way, for example by a stepped bore in Pump housing 2 may be formed.
- the invention is not limited to the embodiments limited. This is also possible, for example in place of the radially arranged high-pressure fuel storage an axially arranged high-pressure fuel storage form in the pump housing. It is also possible the high-pressure accumulator as a spherical high-pressure accumulator train. This results in a particularly advantageous Pressure distribution within the accumulator.
- the high pressure outputs 6 and the high-pressure accumulator 4 is not hydraulically parallel, but are connected in series. In this case are high pressure outlets to provide the high-pressure accumulator 4.
- the supply lines and the High-pressure outlets can preferably in, on the high-pressure accumulator trained, stiffening ribs be formed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
- Figur 1:
- einen Radialschnitt durch eine erfindungsgemäße Radialkolbenpumpe mit einem radial angeordnetem Hochdruckspeicher.
Claims (7)
- Radialkolbenpumpe (1), insbesondere Radialkolbenpumpe für die Kraftstoffhochdruckerzeugung, mit einem Pumpengehäuse (2), in dem eine Pumpenwelle (3) mit einem Exzenterabschnitt oder wenigstens einer nockenförmigen Erhebung drehbar gelagert ist und mit wenigstens einem Pumpenkolben, der in einem Pumpenzylinder (7) hin- und her bewegbar angeordnet ist,
dadurch gekennzeichnet, dass
das Pumpengehäuse (2) und der Pumpenzylinder einstückig miteinander ausgebildet sind. - Radialkolbenpumpe (1) nach Anspruch 1,
dadurch gekennzeichnet, dass
in das Pumpengehäuse (2) ein Hochdruckspeicher (4) integriert ist. - Radialkolbenpumpe nach Anspruch 2,
dadurch gekennzeichnet, dass
der Hochdruckspeicher (4) eine Hochdruckabdichtung (5) aufweist und dass die Hochdruckabdichtung (5) im Pumpengehäuse (2) innenliegend angeordnet ist. - Radialkolbenpumpe (1) nach Anspruch 2 oder 3,
dadurch gekennzeichnet, dass
Hochdruckspeicher (4) über Hochdruckleitungen (13) hydraulisch zu wenigstens einem Hochdruckausgang (6) der Kraftstoffhochdruckpumpe (1) parallel geschaltet ist. - Radialkolbenpumpe (1) nach Anspruch 3 oder 4,
dadurch gekennzeichnet, dass
in den Hochdruckausgängen (6) Drosseln (14), insbesondere Blenden, ausgebildet sind. - Radialkolbenpumpe (1) nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass
sämtliche Hochdruckleitungen (13) zur Druckerzeugung, Druckweiterleitung, Druckspeicherung und Druckverteilung zu den einzelnen Hochdruckausgängen (6) im Pumpengehäuse ausgebildet sind. - Radialkolbenpumpe (1) nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass
die Hochdruckausgänge (6) einstückig mit dem Pumpengehäuse ausgebildet sind, der Gestallt, dass eine Injektorleitung unmittelbar ohne zusätzliche Adapterteile and die Hochdruckpumpe (1) anschließbar ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004015263 | 2004-03-29 | ||
| DE200410015263 DE102004015263A1 (de) | 2004-03-29 | 2004-03-29 | Radialkolbenpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1582739A2 true EP1582739A2 (de) | 2005-10-05 |
| EP1582739A3 EP1582739A3 (de) | 2010-06-30 |
Family
ID=34877634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05101669A Withdrawn EP1582739A3 (de) | 2004-03-29 | 2005-03-04 | Radialkolbenpumpe |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1582739A3 (de) |
| DE (1) | DE102004015263A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19729789A1 (de) | 1997-07-11 | 1999-01-14 | Bosch Gmbh Robert | Radialkolbenpumpe zur Kraftstoffhochdruckversorgung |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4201825A1 (de) * | 1992-01-24 | 1993-07-29 | Teves Gmbh Alfred | Bremsanlage und pumpe mit einem druckventil fuer diese bremsanlage |
| DE4240590A1 (de) * | 1992-12-03 | 1994-06-09 | Uraca Pumpen | Verdrängerpumpe |
| DE19527402A1 (de) * | 1995-07-27 | 1997-01-30 | Teves Gmbh Alfred | Pumpe |
| DE19605781B4 (de) * | 1996-02-16 | 2005-04-28 | Zahnradfabrik Friedrichshafen | Radialkolbenpumpe |
| JPH11294292A (ja) * | 1998-04-15 | 1999-10-26 | Denso Corp | 蓄圧式燃料噴射装置 |
| GB9903115D0 (en) * | 1999-02-11 | 1999-04-07 | Lucas Ind Plc | Multi-chamber positive displacement pump |
| DE19927826A1 (de) * | 1999-06-18 | 2000-12-28 | Bosch Gmbh Robert | Pumpenanordnung |
| DE20109077U1 (de) * | 2001-05-31 | 2001-08-30 | FEV Motorentechnik GmbH, 52078 Aachen | Kolbenpumpe mit Speicherraum zur Erzeugung eines bedarfsgerechten Förderstroms |
| DE10228551A1 (de) * | 2002-06-26 | 2004-01-22 | Siemens Ag | Radialkolbenpumpe |
-
2004
- 2004-03-29 DE DE200410015263 patent/DE102004015263A1/de not_active Withdrawn
-
2005
- 2005-03-04 EP EP05101669A patent/EP1582739A3/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19729789A1 (de) | 1997-07-11 | 1999-01-14 | Bosch Gmbh Robert | Radialkolbenpumpe zur Kraftstoffhochdruckversorgung |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1582739A3 (de) | 2010-06-30 |
| DE102004015263A1 (de) | 2005-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69919309T2 (de) | Kraftstoffeinspritzpumpe | |
| DE10157135B4 (de) | Kraftstoffversorgungsanlage in Form eines Common-Rail-Systems einer Brennkraftmaschine mit mehreren Zylindern | |
| DE19726572A1 (de) | Radialkolbenpumpe | |
| EP1381770A1 (de) | Hochdruck-kraftstoffpumpe für ein kraftstoffsystem einer direkteinspritzenden brennkraftmaschine, kraftstoffsystem sowie brennkraftmaschine | |
| DE10245084A1 (de) | Druckbegrenzungseinrichtung sowie Kraftstoffsystem mit einer solchen Druckbegrenzungseinrichtung | |
| DE19933254A1 (de) | Anschlussstutzen und Gehäuse, insbesondere Kraftstoffhochdruckspeicher, mit vorgespannt angeschweißtem Anschlussstutzen für ein Kraftstoffeinspritzsystem für Brennkraftmaschinen | |
| DE19952513A1 (de) | Kraftstoffeinspritzsystem für Brennkraftmaschinen mit konstantem Lecköldruck im Injektor | |
| DE102008003347A1 (de) | Druckverstärkeranordnung | |
| EP1312791A2 (de) | Hochdruckkraftstoffpumpe mit entlüftetem Membranspeicher | |
| EP1047876B1 (de) | Radialkolbenpumpe zur kraftstoffhochdruckversorgung | |
| DE102022202520A1 (de) | Gesonderte Vorkompressionsbaugruppe zur Verwendung mit einer Kolbenmaschine | |
| DE102008058288A1 (de) | Druckbegrenzungsventil und Hochdruckpumpe mit einem Druckbegrenzungsventil | |
| WO2013037481A1 (de) | Hochdruckpumpensystem | |
| EP0509077B1 (de) | Kolbenpumpe, insbesondere radialkolbenpumpe | |
| DE19920997B4 (de) | Radialkolbenpumpe | |
| EP3014119B1 (de) | Pumpe | |
| DE102010031390B4 (de) | Saugventil einer Kraftstoffversorgungsanlage einer Brennkraftmaschine | |
| EP1582740B1 (de) | Hochdruckpumpe mit integriertem Hochdruckspeicher | |
| DE102015223037A1 (de) | Vibrationsantrieb mit hydraulischer Pulserzeugungsvorrichtung | |
| DE19859188B4 (de) | Hochdruckpumpe | |
| DE10243148A1 (de) | Radialkolbenpumpeneinheit | |
| EP1582739A2 (de) | Radialkolbenpumpe | |
| DE102007016579A1 (de) | Adapterplatte | |
| EP1704327B1 (de) | Kraftstoffhochdruckpumpe für common-rail-einspritzsysteme | |
| DE102008041393A1 (de) | Kraftstoffsystem für eine Brennkraftmaschine |
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 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CONTINENTAL AUTOMOTIVE GMBH |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
| AKY | No designation fees paid | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20101231 |