DE102008002378A1 - Piston pump, particularly high pressure pump for fuel injection unit of internal combustion engine, has adjustably guided pump piston, which limits pump workspace in cylinder bore - Google Patents
Piston pump, particularly high pressure pump for fuel injection unit of internal combustion engine, has adjustably guided pump piston, which limits pump workspace in cylinder bore Download PDFInfo
- Publication number
- DE102008002378A1 DE102008002378A1 DE102008002378A DE102008002378A DE102008002378A1 DE 102008002378 A1 DE102008002378 A1 DE 102008002378A1 DE 102008002378 A DE102008002378 A DE 102008002378A DE 102008002378 A DE102008002378 A DE 102008002378A DE 102008002378 A1 DE102008002378 A1 DE 102008002378A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- piston
- roller
- combustion engine
- internal combustion
- 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- Withdrawn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
- 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
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/06—Pumps peculiar thereto
-
- 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
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/445—Selection of particular materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (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.
Eine
solche Kolbenpumpe ist durch die
Vorteile der ErfindungAdvantages of the invention
Erfindungsgemäß weisen
die beiden stirnseitigen Kuppen der Laufrolle und/oder die beiden
Innenseiten des Tassenstößels eine Gleitschicht
auf, die eine feste Suspension eines Festschmierstoffes sehr kleiner
Teilchengröße, wie z. B. MoS2, Graphit oder PTFE,
in einem anorganischen oder organischen Bindemittel ist. Solche
Gleitschichten sind als Gleitlack bzw. Anti-Friction-Coatings allgemein
bekannt und hinsichtlich ihrer Eigenschaften und ihrer Applikation
auf Metalloberflächen in dem Buch,
Die erfindungsgemäße Gleitlackschicht bzw. -schichten zwischen Laufrollenkuppen und Tassenstößel unterstützen somit das Einlaufen zwischen Laufrolle und Tassenstößel.The Inventive Gleitlackschicht or layers support between roller and cup tappets thus entering between the roller and bucket tappets.
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
Ein Ausführungsbeispiel des erfindungsgemäßen Gegenstands ist in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:One Embodiment of the invention Item is shown in the drawings and in the following Description explained in more detail. Show it:
Beschreibung des AusführungsbeispielsDescription of the embodiment
In
Die
Hochdruckpumpe
Durch
den jeweiligen Pumpenkolben
Die
Antriebswelle
Die
Antriebswelle
Wie
in
Die
Dicke der Gleitlackbeschichtungen
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 10337847 A1 [0002, 0012] DE 10337847 A1 [0002, 0012]
Zitierte Nicht-PatentliteraturCited non-patent literature
- - Molykote, Ausgabe 1991, das von Molykote, einem Unternehmensbereich der Dow-Corning GmbH, München [0003] - Molykote, 1991 edition, by Molykote, a division of Dow-Corning GmbH, Munich [0003]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008002378A DE102008002378A1 (en) | 2008-06-12 | 2008-06-12 | Piston pump, particularly high pressure pump for fuel injection unit of internal combustion engine, has adjustably guided pump piston, which limits pump workspace in cylinder bore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008002378A DE102008002378A1 (en) | 2008-06-12 | 2008-06-12 | Piston pump, particularly high pressure pump for fuel injection unit of internal combustion engine, has adjustably guided pump piston, which limits pump workspace in cylinder bore |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008002378A1 true DE102008002378A1 (en) | 2009-12-17 |
Family
ID=41317498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008002378A Withdrawn DE102008002378A1 (en) | 2008-06-12 | 2008-06-12 | Piston pump, particularly high pressure pump for fuel injection unit of internal combustion engine, has adjustably guided pump piston, which limits pump workspace in cylinder bore |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008002378A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012143156A1 (en) * | 2011-04-19 | 2012-10-26 | Robert Bosch Gmbh | High-pressure pump |
FR2998614A1 (en) * | 2012-11-29 | 2014-05-30 | Skf Ab | CAM FOLLOWER WITH ANTI-ROTATION DEVICE |
CN104727876A (en) * | 2013-12-23 | 2015-06-24 | Skf公司 | Cam follower roller device |
JP2018189043A (en) * | 2017-05-09 | 2018-11-29 | いすゞ自動車株式会社 | Injector for engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4406803A1 (en) * | 1994-03-02 | 1995-09-07 | Rexroth Mannesmann Gmbh | Hydraulic piston pump |
DE10337847A1 (en) | 2003-08-18 | 2005-03-17 | Robert Bosch Gmbh | Pump arrangement with a high-pressure pump and a low-pressure pump upstream of this for a fuel injection device of an internal combustion engine |
DE102006041673A1 (en) * | 2006-02-20 | 2007-08-23 | Robert Bosch Gmbh | High pressure pump especially for fuel injection in IC engine has the cam follower supported axially by hardened low wear surfaces |
DE102006038839A1 (en) * | 2006-08-18 | 2008-02-21 | Robert Bosch Gmbh | High-pressure pump for fuel system of internal-combustion engine, has roller held between housing-side stationary sliding surfaces, where both opposite front surfaces of roller work together with stationary housing-side sliding surface |
-
2008
- 2008-06-12 DE DE102008002378A patent/DE102008002378A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4406803A1 (en) * | 1994-03-02 | 1995-09-07 | Rexroth Mannesmann Gmbh | Hydraulic piston pump |
DE10337847A1 (en) | 2003-08-18 | 2005-03-17 | Robert Bosch Gmbh | Pump arrangement with a high-pressure pump and a low-pressure pump upstream of this for a fuel injection device of an internal combustion engine |
DE102006041673A1 (en) * | 2006-02-20 | 2007-08-23 | Robert Bosch Gmbh | High pressure pump especially for fuel injection in IC engine has the cam follower supported axially by hardened low wear surfaces |
DE102006038839A1 (en) * | 2006-08-18 | 2008-02-21 | Robert Bosch Gmbh | High-pressure pump for fuel system of internal-combustion engine, has roller held between housing-side stationary sliding surfaces, where both opposite front surfaces of roller work together with stationary housing-side sliding surface |
Non-Patent Citations (1)
Title |
---|
Molykote, Ausgabe 1991, das von Molykote, einem Unternehmensbereich der Dow-Corning GmbH, München |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012143156A1 (en) * | 2011-04-19 | 2012-10-26 | Robert Bosch Gmbh | High-pressure pump |
FR2998614A1 (en) * | 2012-11-29 | 2014-05-30 | Skf Ab | CAM FOLLOWER WITH ANTI-ROTATION DEVICE |
WO2014083174A1 (en) * | 2012-11-29 | 2014-06-05 | Aktiebolaget Skf | Cam follower having an anti-rotation device |
CN104822908A (en) * | 2012-11-29 | 2015-08-05 | Skf公司 | Cam follower having an anti-rotation device |
CN104822908B (en) * | 2012-11-29 | 2018-05-08 | Skf公司 | Cam-follower with counter rotation device |
US10260614B2 (en) | 2012-11-29 | 2019-04-16 | Aktiebolaget Skf | Cam follower with anti-rotation device |
CN104727876A (en) * | 2013-12-23 | 2015-06-24 | Skf公司 | Cam follower roller device |
US20150176690A1 (en) * | 2013-12-23 | 2015-06-25 | Aktiebolaget Skf | Cam follower roller device |
FR3015598A1 (en) * | 2013-12-23 | 2015-06-26 | Skf Ab | FOLLOWING ROLL DEVICE OF A CAM |
US9752669B2 (en) * | 2013-12-23 | 2017-09-05 | Aktiebolaget Skf | Cam follower roller device |
CN104727876B (en) * | 2013-12-23 | 2019-07-16 | Skf公司 | Cam driven roller arrangement |
JP2018189043A (en) * | 2017-05-09 | 2018-11-29 | いすゞ自動車株式会社 | Injector for engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130101 |