DE102004053270A1 - High-pressure pump, in particular for a fuel injection device of an internal combustion engine - Google Patents
High-pressure pump, in particular for a fuel injection device of an internal combustion engine Download PDFInfo
- Publication number
- DE102004053270A1 DE102004053270A1 DE200410053270 DE102004053270A DE102004053270A1 DE 102004053270 A1 DE102004053270 A1 DE 102004053270A1 DE 200410053270 DE200410053270 DE 200410053270 DE 102004053270 A DE102004053270 A DE 102004053270A DE 102004053270 A1 DE102004053270 A1 DE 102004053270A1
- Authority
- DE
- Germany
- Prior art keywords
- support element
- pump
- drive shaft
- pressure pump
- pump piston
- 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- Withdrawn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 title claims description 15
- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 238000002347 injection Methods 0.000 title claims description 4
- 239000007924 injection Substances 0.000 title claims description 4
- 239000002131 composite material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel 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
- F04B1/0439—Supporting or guiding means for the pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Die Hochdruckpumpe weist ein Gehäuse (10, 14, 22) auf, in dem wenigstens ein Pumpenelement (18) angeordnet ist, das einen durch eine Antriebswelle (12) in einer Hubbewegung angetriebenen Pumpenkolben (20) aufweist, der in einer Zylinderbohrung (28) eines Gehäuseteils (22) verschiebbar geführt ist und in dieser einen Pumpenarbeitsraum (30) begrenzt. Der Pumpenkolben (20) stützt sich über ein Stützelement (40) an der Antriebswelle (12) ab, wobei das Stützelement (40) topfförmig ausgebildet ist, mit seinem Boden zur Antriebswelle (12) weist und mit seinem Mantel in einer Aufnahme in einem Gehäuseteil verschiebbar geführt ist. Der Pumpenkolben (20) und das Stützelement (40) sind durch eine vorgespannte Rückstellfeder (60) zur Antriebswelle (12) hin beaufschlagt. Das Stützelement (40) weist in seinem Mantel (48) wenigstens eine Öffnung (54) auf.The high-pressure pump has a housing (10, 14, 22) in which at least one pump element (18) is arranged, which has a pump piston (20) which is driven in a reciprocating motion by a drive shaft (12) and which is located in a cylinder bore (28). a housing part (22) is displaceably guided and limited in this a pump working space (30). The pump piston (20) is supported by a support element (40) on the drive shaft (12), wherein the support member (40) is cup-shaped, with its bottom to the drive shaft (12) and with its jacket in a receptacle in a housing part slidably guided. The pump piston (20) and the support element (40) are acted upon by a prestressed return spring (60) to the drive shaft (12) out. The support element (40) has at least one opening (54) in its jacket (48).
Description
Die Erfindung geht aus von einer Hochdruckpumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine nach der Gattung des Anspruchs 1.The The invention is based on a high-pressure pump, in particular for a fuel injection device an internal combustion engine according to the preamble of claim 1.
Eine
solche Hochdruckpumpe ist durch die
Vorteile der ErfindungAdvantages of invention
Die erfindungsgemäße Hochdruckpumpe mit den Merkmalen gemäß Anspruch 1 hat demgegenüber den Vorteil, dass das Gewicht des Stützelements verringert ist, so dass die Rückstellfeder mit geringerer Steifigkeit und somit reduziertem Gewicht ausgeführt werden kann und/oder die Hochdruckpumpe mit höherer Drehzahl betrieben werden kann.The High pressure pump according to the invention with the features according to claim 1 has in contrast the advantage that the weight of the support element is reduced, so that the return spring be carried out with less rigidity and thus reduced weight can and / or the high-pressure pump can be operated at a higher speed can.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Hochdruckpumpe angegeben. Durch die Ausbildung gemäß Anspruch 4 wird die Steifigkeit des Stützelements in seinen am stärksten belasteten Randbereichen durch die wenigstens eine Öffnung nicht verringert.In the dependent claims are advantageous embodiments and refinements of the high-pressure pump according to the invention specified. By training according to claim 4, the rigidity of the support element in his most heavily burdened Edge areas not reduced by the at least one opening.
Zeichnungdrawing
Ein
Ausführungsbeispiel
der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung
näher erläutert. Es
zeigen
Beschreibung des Ausführungsbeispielsdescription of the embodiment
In
den
In
einem zwischen den beiden Lagerstellen liegenden Bereich weist die
Antriebswelle
Zwischen
dem Pumpenkolben
Am
Stützelement
Der
Mantel
Beim
Saughub des Pumpenkolbens
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410053270 DE102004053270A1 (en) | 2004-11-04 | 2004-11-04 | High-pressure pump, in particular for a fuel injection device of an internal combustion engine |
| PCT/EP2005/055150 WO2006048365A1 (en) | 2004-11-04 | 2005-10-11 | Jetting pump, especially for a fuel injection device of an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410053270 DE102004053270A1 (en) | 2004-11-04 | 2004-11-04 | High-pressure pump, in particular for a fuel injection device of an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102004053270A1 true DE102004053270A1 (en) | 2006-05-11 |
Family
ID=35502634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200410053270 Withdrawn DE102004053270A1 (en) | 2004-11-04 | 2004-11-04 | High-pressure pump, in particular for a fuel injection device of an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102004053270A1 (en) |
| WO (1) | WO2006048365A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19844326B4 (en) * | 1998-09-28 | 2006-01-05 | Robert Bosch Gmbh | Radial piston pump |
| DE19902324A1 (en) * | 1999-01-21 | 2000-07-27 | Mannesmann Rexroth Ag | high pressure pump |
| DE19907311A1 (en) | 1999-02-22 | 2000-08-31 | Bosch Gmbh Robert | Hydraulic pump unit |
| GB2366336A (en) * | 2000-08-31 | 2002-03-06 | Delphi Tech Inc | Fuel pump |
| WO2004063559A1 (en) * | 2003-01-09 | 2004-07-29 | Bosch Automotive Systems Corporation | Fuel feed pump |
| DE10313745A1 (en) * | 2003-03-27 | 2004-10-07 | Robert Bosch Gmbh | High pressure pump for IC engine fuel injection device e.g. for automobile, with hydrodynamic lubrication of bearings for ring segments operating pistons of pump elements |
-
2004
- 2004-11-04 DE DE200410053270 patent/DE102004053270A1/en not_active Withdrawn
-
2005
- 2005-10-11 WO PCT/EP2005/055150 patent/WO2006048365A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006048365A1 (en) | 2006-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |