DE102009001108A1 - High-pressure piston pump for use as radial piston pump for fuel injecting mechanism of internal combustion engine of motor vehicle, has body with radially outward aligned truncation edge-freely connected to inner surface - Google Patents
High-pressure piston pump for use as radial piston pump for fuel injecting mechanism of internal combustion engine of motor vehicle, has body with radially outward aligned truncation edge-freely connected to inner surface Download PDFInfo
- Publication number
- DE102009001108A1 DE102009001108A1 DE200910001108 DE102009001108A DE102009001108A1 DE 102009001108 A1 DE102009001108 A1 DE 102009001108A1 DE 200910001108 DE200910001108 DE 200910001108 DE 102009001108 A DE102009001108 A DE 102009001108A DE 102009001108 A1 DE102009001108 A1 DE 102009001108A1
- Authority
- DE
- Germany
- Prior art keywords
- piston pump
- rounding
- drive shaft
- guide surface
- radially outward
- 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.)
- Ceased
Links
- 239000000446 fuel Substances 0.000 title claims description 6
- 238000002485 combustion reaction Methods 0.000 title claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- 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
- F04B1/0408—Pistons
-
- 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
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
Description
Die Erfindung geht aus von einer Kolbenpumpe nach der Gattung des Anspruchs 1.The The invention is based on a piston pump according to the preamble of the claim 1.
Aus
der
Bei
der Hubbewegung werden Kräfte sowohl in Kolbenrichtung
als auch rechtwinklig dazu erzeugt. Der hülsenförmige
Stößelkörper dient zur Abstützung der
rechtwinklig zur Kolbenrichtung verlaufenden Kraftkomponente und
ist im Gehäuse entweder mit seiner Innenmantelfläche
geführt (innen geführte Variante) oder wie bei
der
Bei der innen geführten Variante ist der Stößelkörper auf einen in Richtung auf die Antriebswelle vorstehenden zylinderförmigen Stößelführungsvorsprung aufgeschoben und auf dessen zylindrischer Außenmantelfläche verschiebbar geführt. An seinem Ende weist der Stößelführungsvorsprung einen sich in Richtung auf die Antriebsachse verjüngenden Einführkonus in Form einer Fase als Einführhilfe für den Stößelkörper auf. Allerdings führt die zwischen zylindrischer Außenmantelfläche und Einführkonus vorhandene Fasenkante dazu, dass im linienhaften Kontaktbereich zwischen Stößelkörper und Fasenkante hohe Kontaktkräfte auf treten.at the inside variant is the ram body on a projecting in the direction of the drive shaft cylindrical Pushed ram guide projection and on the cylindrical outer circumferential surface slidably guided. At its end, the ram guide projection a tapering in the direction of the drive axle Insertion cone in the form of a chamfer as an insertion aid for the plunger body. Indeed leads between the cylindrical outer surface and insertion cone existing fascia edge to that in the linear Contact area between plunger body and Fasenkante high contact forces occur.
Vorteile der ErfindungAdvantages of the invention
Erfindungsgemäß werden durch die kantenfreie Abrundung bzw. die ballige Form an dem einen oder an beiden Führungsenden die Kontaktkräfte und damit der Verschleiß deutlich reduziert. Statt einem linienhaften Kontakt ergibt sich erfindungsgemäß ein eher flächiger Kontaktbereich mit entsprechender Reduzierung der Kontaktpressung, wodurch höhere Belastungen/Kräfte möglich werden.According to the invention by the edge-free rounding or the spherical shape on the one or at both leaders the contact forces and so that the wear significantly reduced. Instead of a linear one Contact results according to the invention a rather areal Contact area with corresponding reduction of the contact pressure, whereby higher loads / forces possible become.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further Advantages and advantageous embodiments of the subject invention are the description, the drawing and the claims removable.
Zeichnungendrawings
Mehrere Ausführungsbeispiele des erfindungsgemäßen Gegenstands sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Several Embodiments of the invention Articles are illustrated in the drawings and in the following Description explained in more detail. Show it:
Beschreibung der AusführungsbeispieleDescription of the embodiments
In
Die
Hochdruckpumpe
Wie
in
Wie
in
Wie
in
Wie
in
Mit
anderen Worten können Abrundungen sowohl für den
unteren als auch für den oberen Bereich der Überdeckung
von Stößelkörper
Anstelle
des in den
Durch
die Abrundung bzw. Abrundungen ergibt sich an einem oder an beiden
Führungsenden ein eher flächiger Kontaktbereich
mit entsprechender Reduzierung der Kontaktpressung, wodurch der
Verschleiß zwischen Stößelkörper
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 102006045933 A1 [0002, 0003] - DE 102006045933 A1 [0002, 0003]
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910001108 DE102009001108A1 (en) | 2009-02-24 | 2009-02-24 | High-pressure piston pump for use as radial piston pump for fuel injecting mechanism of internal combustion engine of motor vehicle, has body with radially outward aligned truncation edge-freely connected to inner surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910001108 DE102009001108A1 (en) | 2009-02-24 | 2009-02-24 | High-pressure piston pump for use as radial piston pump for fuel injecting mechanism of internal combustion engine of motor vehicle, has body with radially outward aligned truncation edge-freely connected to inner surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102009001108A1 true DE102009001108A1 (en) | 2010-08-26 |
Family
ID=42356480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200910001108 Ceased DE102009001108A1 (en) | 2009-02-24 | 2009-02-24 | High-pressure piston pump for use as radial piston pump for fuel injecting mechanism of internal combustion engine of motor vehicle, has body with radially outward aligned truncation edge-freely connected to inner surface |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009001108A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103562550A (en) * | 2011-05-18 | 2014-02-05 | 罗伯特·博世有限公司 | Roller actuators, especially for piston pumps |
| CN103958879A (en) * | 2011-11-29 | 2014-07-30 | 卡特彼勒公司 | Thrust lubrication strategy for roller lifters of a common rail fuel pump |
| US10436164B2 (en) * | 2014-12-23 | 2019-10-08 | Cummins, Inc. | Tappet roller retaining approach |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006045933A1 (en) | 2006-09-28 | 2008-04-03 | Robert Bosch Gmbh | Plunger assembly for a high pressure pump and high pressure pump with at least one plunger assembly |
-
2009
- 2009-02-24 DE DE200910001108 patent/DE102009001108A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006045933A1 (en) | 2006-09-28 | 2008-04-03 | Robert Bosch Gmbh | Plunger assembly for a high pressure pump and high pressure pump with at least one plunger assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103562550A (en) * | 2011-05-18 | 2014-02-05 | 罗伯特·博世有限公司 | Roller actuators, especially for piston pumps |
| CN103562550B (en) * | 2011-05-18 | 2016-07-20 | 罗伯特·博世有限公司 | Roller actuators, especially for piston pumps |
| CN103958879A (en) * | 2011-11-29 | 2014-07-30 | 卡特彼勒公司 | Thrust lubrication strategy for roller lifters of a common rail fuel pump |
| CN103958879B (en) * | 2011-11-29 | 2016-08-17 | 卡特彼勒公司 | Thrust lubrication strategies for the roller lifter of common rail fuel pump |
| US10436164B2 (en) * | 2014-12-23 | 2019-10-08 | Cummins, Inc. | Tappet roller retaining approach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R012 | Request for examination validly filed | ||
| R016 | Response to examination communication | ||
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |